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Huang R, Oduor AMO, Yan Y, Yu W, Chao C, Dong L, Jin S, Li F. Nutrient enrichment, propagule pressure, and herbivory interactively influence the competitive ability of an invasive alien macrophyte Myriophyllum aquaticum. FRONTIERS IN PLANT SCIENCE 2024; 15:1411767. [PMID: 38872881 PMCID: PMC11169793 DOI: 10.3389/fpls.2024.1411767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 05/01/2024] [Indexed: 06/15/2024]
Abstract
Introduction Freshwater ecosystems are susceptible to invasion by alien macrophytes due to their connectivity and various plant dispersal vectors. These ecosystems often experience anthropogenic nutrient enrichment, favouring invasive species that efficiently exploit these resources. Propagule pressure (reflecting the quantity of introduced individuals) and habitat invasibility are key determinants of invasion success. Moreover, the enemy release hypothesis predicts that escape from natural enemies, such as herbivores, allows alien species to invest more resources to growth and reproduction rather than defense, enhancing their invasive potential. Yet, the combined impact of propagule pressure, herbivory, and nutrient enrichment on the competitive dynamics between invasive alien macrophytes and native macrophyte communities is not well understood due to a paucity of studies. Methods We conducted a full factorial mesocosm experiment to explore the individual and combined effects of herbivory, nutrient levels, propagule pressure, and competition on the invasion success of the alien macrophyte Myriophyllum aquaticum into a native macrophyte community comprising Vallisneria natans, Hydrilla verticillata, and Myriophyllum spicatum. This setup included varying M. aquaticum densities (low vs. high, simulating low and high propagule pressures), two levels of herbivory by the native snail Lymnaea stagnalis (herbivory vs no-herbivory), and two nutrient conditions (low vs. high). Myriophyllum aquaticum was also grown separately at both densities without competition from native macrophytes. Results The invasive alien macrophyte M. aquaticum produced the highest shoot and total biomass when simultaneously subjected to conditions of high-density intraspecific competition, no herbivory, and low-nutrient availability treatments. Moreover, a high propagule pressure of M. aquaticum significantly reduced the growth of the native macrophyte community in nutrient-rich conditions, but this effect was not observed in nutrient-poor conditions. Discussion These findings indicate that M. aquaticum has adaptive traits enabling it to flourish in the absence of herbivory (supporting the enemy release hypothesis) and in challenging environments such as intense intraspecific competition and low nutrient availability. Additionally, the findings demonstrate that when present in large numbers, M. aquaticum can significantly inhibit the growth of native macrophyte communities, particularly in nutrient-rich environments. Consequently, reducing the propagule pressure of M. aquaticum could help control its spread and mitigate its ecological impact. Overall, these findings emphasize that the growth and impacts of invasive alien plants can vary across different habitat conditions and is shaped by the interplay of biotic and abiotic factors.
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Affiliation(s)
- Ru Huang
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Dongting Lake Station for Wetland Ecosystem Research, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
| | - Ayub M. O. Oduor
- Department of Applied Biology, Technical University of Kenya, Nairobi, Kenya
| | - Yimin Yan
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Dongting Lake Station for Wetland Ecosystem Research, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Weicheng Yu
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Dongting Lake Station for Wetland Ecosystem Research, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Chuanxin Chao
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Dongting Lake Station for Wetland Ecosystem Research, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Lei Dong
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Dongting Lake Station for Wetland Ecosystem Research, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Shaofei Jin
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Dongting Lake Station for Wetland Ecosystem Research, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Department of Geography and Oceanography, Minjiang University, Fuzhou, China
| | - Feng Li
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Dongting Lake Station for Wetland Ecosystem Research, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Technology Innovation Center for Ecological Conservation and Restoration in Dongting Lake Basin, Ministry of Natural Resources, Changsha, Hunan, China
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Dessart M, Aguiar JMRBV, Tabacchi E, Guillerme S, Giurfa M. Color-advertising strategies of invasive plants through the bee eye. FRONTIERS IN PLANT SCIENCE 2024; 15:1393204. [PMID: 38841283 PMCID: PMC11150686 DOI: 10.3389/fpls.2024.1393204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/30/2024] [Indexed: 06/07/2024]
Abstract
Invasive plants represent a significant global challenge as they compete with native plants for limited resources such as space, nutrients and pollinators. Here, we focused on four invasive species that are widely spread in the French Pyrenees, Buddleja davidii, Reynoutria japonica, Spiraea japonica and Impatiens glandulifera, and analyzed their visual advertisement signals with respect to those displayed by their surrounding native species using a perceptual approach based on the neural mechanisms of bee vision given that bees are regular pollinators of these plants. We collected 543 spectral reflections from the 4 invasive species, and 66 native species and estimated achromatic and chromatic similarities to the bee eye. R. japonica, S. japonica and B. davidii were inconspicuous against the foliage background and could be hardly discriminated in terms of color from their surrounding native plants. These characteristics promote generalization, potentially attracting pollinators foraging on similar native species. Two morphs of I. glandulifera were both highly salient in chromatic and achromatic terms and different from their surrounding native species. This distinctive identity facilitates detection and learning in association with rich nectar. While visual signals are not the only sensory cue accounting for invasive-plant success, our study reveals new elements for understanding biological invasion processes from the perspective of pollinator perceptual processes.
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Affiliation(s)
- Martin Dessart
- Institut de Recherche sur la Biologie de l'Insecte, Centre National de la Recherche Scientifique (CNRS), University of Tours, Tours, France
| | | | - Eric Tabacchi
- Centre de Recherche sur la Biodiversité et l'Environnement (CRBE), UMR 53000, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), Institut National Polytechnique, Université Paul Sabatier, Toulouse, France
| | - Sylvie Guillerme
- Laboratoire Géographie de l’Environnement (GEODE), Centre National de la Recherche Scientifique (CNRS), University Toulouse Jean-Jaurès, Toulouse, France
| | - Martin Giurfa
- Institut Universitaire de France, Paris, France
- Neuroscience Paris-Seine - Institut de Biologie Paris-Seine, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), Sorbonne University, Paris, France
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Rhodes AC, Plowes RM, Bowman EA, Gaitho A, Ng'Iru I, Martins DJ, Gilbert LE. Systematic reduction of natural enemies and competition across variable precipitation approximates buffelgrass invasiveness ( Cenchrus ciliaris) in its native range. Ecol Evol 2024; 14:e11350. [PMID: 38737568 PMCID: PMC11087885 DOI: 10.1002/ece3.11350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/28/2024] [Accepted: 04/12/2024] [Indexed: 05/14/2024] Open
Abstract
Invasive grasses cause devastating losses to biodiversity and ecosystem function directly and indirectly by altering ecosystem processes. Escape from natural enemies, plant-plant competition, and variable resource availability provide frameworks for understanding invasion. However, we lack a clear understanding of how natural stressors interact in their native range to regulate invasiveness. In this study, we reduced diverse guilds of natural enemies and plant competitors of the highly invasive buffelgrass across a precipitation gradient throughout major climatic shifts in Laikipia, Kenya. To do this, we used a long-term ungulate exclosure experiment design across a precipitation gradient with nested treatments that (1) reduced plant competition through clipping, (2) reduced insects through systemic insecticide, and (3) reduced fungal associates through fungicide application. Additionally, we measured the interaction of ungulates on two stem-boring insect species feeding on buffelgrass. Finally, we measured a multiyear smut fungus outbreak. Our findings suggest that buffelgrass exhibits invasive qualities when released from a diverse group of natural stressors in its native range. We show natural enemies interact with precipitation to alter buffelgrass productivity patterns. In addition, interspecific plant competition decreased the basal area of buffelgrass, suggesting that biotic resistance mediates buffelgrass dominance in the home range. Surprisingly, systemic insecticides and fungicides did not impact buffelgrass production or reproduction, perhaps because other guilds filled the niche space in these highly diverse systems. For example, in the absence of ungulates, we showed an increase in host-specific stem-galling insects, where these insects compensated for reduced ungulate use. Finally, we documented a smut outbreak in 2020 and 2021, corresponding to highly variable precipitation patterns caused by a shifting Indian Ocean Dipole. In conclusion, we observed how reducing natural enemies and competitors and certain interactions increased properties related to buffelgrass invasiveness.
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Affiliation(s)
- Aaron C. Rhodes
- Brackenridge Field LaboratoryThe University of Texas at AustinAustinTexasUSA
| | - Robert M. Plowes
- Brackenridge Field LaboratoryThe University of Texas at AustinAustinTexasUSA
| | - Elizabeth A. Bowman
- Brackenridge Field LaboratoryThe University of Texas at AustinAustinTexasUSA
- Hiro Technologies, IncAustinTexasUSA
| | - Aimee Gaitho
- Mpala Research Centre NanyukiNanyukiKenya
- Turkana Basin InstituteNairobiKenya
| | - Ivy Ng'Iru
- UK Centre for Ecology & HydrologyCardiff UniversityWallingfordUK
| | | | - Lawrence E. Gilbert
- Brackenridge Field LaboratoryThe University of Texas at AustinAustinTexasUSA
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Binama B, Caroline M. Differences in growth and competition between plants of a naturalized and an invasive population of Bunias orientalis. Ecol Evol 2024; 14:e11153. [PMID: 38505180 PMCID: PMC10948592 DOI: 10.1002/ece3.11153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 03/03/2024] [Indexed: 03/21/2024] Open
Abstract
The global shift of species' distributions has led to high numbers of noninvasive naturalized plants and the accumulation of invasive species within ecosystems. Competition between species may influence population dynamics, but little is known about the impacts of competition between conspecifics of naturalized and invasive populations. We investigated several plant traits at initial growth and regrowth following artificial defoliation in intra and interpopulation competition. Therefore, we used plants of Bunias orientalis from one noninvasive naturalized and one invasive population grown alone or in competition of two or three. Plants from the naturalized population were expected to be less competitive than plants from the invasive population, reflecting their differential impact in the introduced range. Independent of status, intrapopulation competition was expected to have less negative impacts on plants than interpopulation competition. Our results show that competition impacted mostly growth- rather than physiology-related traits. The relative magnitude of intra and interpopulation competition differed among plant traits at the first and second harvest. Plants of the invasive population outperformed the naturalized population by allocating relatively more resources to the aboveground biomass and producing more and longer leaves particularly when grown in competition against two plants. Moreover, plants of the invasive population were more competitive, which may influence their successful establishment and range expansion in the introduced range, but growth patterns differed after artificial defoliation. Although evolution of intrapopulation competition in naturalized and invasive ranges may be expected, interpopulation competition seems to adversely impact the performance of the naturalized plant population of B. orientalis studied here. Apart from the status (naturalized vs. invasive), other factors may have had an influence on plant performance. Thus, further research is needed with more naturalized and invasive populations to test the generality of our findings and to isolate the specific mechanisms driving differences in competitiveness.
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Affiliation(s)
- Blaise Binama
- Department of Chemical EcologyBielefeld UniversityBielefeldGermany
| | - Müller Caroline
- Department of Chemical EcologyBielefeld UniversityBielefeldGermany
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Wu H, Sun Z, Wang H, Chen B, Hu X, Li X. Impacts of spatial expansion by Phragmites australis on spatiotemporal variation of sulfur fractions in marsh soils of the Min River estuary, Southeast China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168910. [PMID: 38013101 DOI: 10.1016/j.scitotenv.2023.168910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 11/17/2023] [Accepted: 11/24/2023] [Indexed: 11/29/2023]
Abstract
To investigate the impacts of spatial expansion by Phragmites australis on spatiotemporal variations of sulfur (S) fractions in marsh soils of the Min River estuary (Southeast China), the contents of total sulfur (TS) and inorganic sulfur (IS) fractions (Water-Soluble-S, W-S-S; Adsorbed-S, A-S; HCl-Soluble-S, H-S-S; and HCl-Volatile-S, H-V-S) were determined in soils of Cyperus malaccensis marsh (before expansion, BE stage), P. australis-C. malaccensis marsh (during expansion, DE stage) and P. australis marsh (after expansion, AE stage) by space-for-time substitution method. Results showed that the expansion of P. australis greatly altered the spatiotemporal variations of TS and IS fractions in marsh soils. The TS contents in soils at AE stage were significantly lower than those at DE and BE stages throughout a year (p < 0.01). Higher levels of W-S-S, A-S, H-S-S and total inorganic sulfur (TIS) generally occurred in soils at DE and AE stages, whereas higher values of H-V-S were observed in soils at BE stage. Although P. australis expansion did not alter the temporal variations of TS stock in soils greatly, the values during autumn and winter were generally higher than those in spring and summer (p < 0.05). The highest TIS stocks in soils of different expansion stages were observed in spring, while the lowest values occurred in summer. The expansion of P. australis significantly increased the IS supply capacity of soils and, compared with the BE stage, stocks of W-S-S, A-S, H-S-S and TIS in soils of all sampling seasons at DE and AE stages increased by 51.40 %, 50.76 %, 63.35 %, 50.52 % and 20.00 %, 31.46 %, 42.93 %, 27.56 %, respectively. It was worth noting that stocks of H-V-S in soils at DE and AE stages showed a decreasing trend compared to the BE stage, implying that the expansion of P. australis might reduce the production of sulfides. This paper found that, compared with C. malaccensis, the increased available IS stocks in soils might be an effective strategy for P. australis to maintain its expansion advantage and the decreased volatile-S in soils might be more favorable for boosting its competitiveness. Our study provided valuable information for understanding the interspecific competition mechanism between P. australis and C. malaccensis. Next step, in order to protect the diversity of marsh vegetations in the Min River estuary, effective measures should be taken to suppress the rapid expansion of P. australis.
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Affiliation(s)
- Huihui Wu
- Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou 350007, People's Republic of China; Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007, People's Republic of China
| | - Zhigao Sun
- Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou 350007, People's Republic of China; Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007, People's Republic of China.
| | - Hua Wang
- Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou 350007, People's Republic of China; Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007, People's Republic of China
| | - Bingbing Chen
- Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou 350007, People's Republic of China; Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007, People's Republic of China; College of Tourism, Resources and Environment, Zaozhuang University, Zaozhuang 277000, People's Republic of China
| | - Xingyun Hu
- Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou 350007, People's Republic of China; Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007, People's Republic of China
| | - Xinhua Li
- Yellow River Delta Modern Agriculture Research Center, Dongying 257000, People's Republic of China
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Salomé-Díaz J, Golubov J, Eguiarte LE, Búrquez A. Difference in Germination Traits between Congeneric Native and Exotic Species May Affect Invasion. PLANTS (BASEL, SWITZERLAND) 2024; 13:478. [PMID: 38498464 PMCID: PMC10892991 DOI: 10.3390/plants13040478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/14/2023] [Accepted: 12/25/2023] [Indexed: 03/20/2024]
Abstract
Germination traits are components of invasion potential, and comparing seed traits in sympatric native and invasive species can offer insights into the invasion process. We characterized seed germination traits and how they influenced the success of Eragrostis mexicana, a native species, and Eragrostis tenuifolia, an exotic species (Poaceae) in Mexico, in the context of their potential for biological invasion. Seeds from both species were collected from four sites in a natural protected area in Mexico City, and the germination of seeds of different ages was conducted in experiments at different temperatures. E. tenuifolia exhibited higher germination percentages than the native E. mexicana across all treatments. Seed age had differential effects, with older seeds of the native E. mexicana germinating better, while E. tenuifolia performed better with younger seeds. Temperature positively impacted germination for both species, although E. mexicana was limited at lower temperatures. Exotic E. tenuifolia can germinate over a wider temperature range with earlier germination rates, and generate a seed bank lasting several years, which may contribute to naturalization. The importance of germination traits in the context of invasive species establishment underscores the potential role of seed banks in facilitating biological invasions.
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Affiliation(s)
- Julieta Salomé-Díaz
- Posgrado en Ciencias Biológicas, Unidad de Posgrado, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
- Department of Evolutionary Ecology, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
- Plant Taxonomy and Systematics Laboratory, Universidad Autónoma Metropolitana, Ciudad de México 04960, Mexico
| | - Jordan Golubov
- Plant Taxonomy and Systematics Laboratory, Universidad Autónoma Metropolitana, Ciudad de México 04960, Mexico
| | - Luis E. Eguiarte
- Department of Evolutionary Ecology, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - Alberto Búrquez
- Estación Regional Noroeste, Instituto de Ecología, Universidad Nacional Autónoma de México, Hermosillo 83250, Mexico;
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Swensen SM, Gomez AM, Piasecki-Masters C, Chime N, Wine AR, Rodriguez NC, Conklin J, Melcher PJ. Minimal impacts of invasive Scaevola taccada on Scaevola plumieri via pollinator competition in Puerto Rico. FRONTIERS IN PLANT SCIENCE 2024; 15:1281797. [PMID: 38332769 PMCID: PMC10850390 DOI: 10.3389/fpls.2024.1281797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 01/04/2024] [Indexed: 02/10/2024]
Abstract
Introduction Scaevola taccada and Scaevola plumieri co-occur on shorelines of the Caribbean. Scaevola taccada is introduced in this habitat and directly competes with native dune vegetation, including S. plumieri, a species listed as locally endangered and threatened in Caribbean locations. This study addresses whether the invasive S. taccada also impacts the native S. plumieri indirectly by competing for pollinators and represents the first comparative study of insect visitation between these species. Methods Insect visitation rates were measured at sites where species co-occur and where only the native occurs. Where species cooccur, insect visitors were captured, identified and analyzed for the pollen they carry. Pollen found on open-pollinated flowers was analyzed to assess pollen movement between the two species. We also compared floral nectar from each species by measuring volume, sugar content, and presence and proportions of amine group containing constituents (AGCCs). Results Our results demonstrate that both species share insect visitors providing the context for possible pollinator competition, yet significant differences in visitation frequency were not found. We found evidence of asymmetrical heterospecific pollen deposition in the native species, suggesting a possible reproductive impact. Insect visitation rates for the native were not significantly different between invaded and uninvaded sites, suggesting that the invasive S. taccada does not limit pollinator visits to S. plumieri. Comparisons of nectar rewards from the invasive and the native reveal similar volumes and sugar concentrations, but significant differences in some amine group containing constituents that may enhance pollinator attraction. Conclusion Our analysis finds no evidence for pollination competition and therefore S. taccada's main impacts on S. plumieri are through competitive displacement and possibly through reproductive impacts as a consequence of heterospecific pollen deposition.
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Affiliation(s)
- Susan M. Swensen
- Department of Biology, Ithaca College, Ithaca, NY, United States
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Kato-Noguchi H, Kurniadie D. The Invasive Mechanisms of the Noxious Alien Plant Species Bidens pilosa. PLANTS (BASEL, SWITZERLAND) 2024; 13:356. [PMID: 38337889 PMCID: PMC10857670 DOI: 10.3390/plants13030356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/12/2024] [Accepted: 01/12/2024] [Indexed: 02/12/2024]
Abstract
Bidens pilosa L. is native to tropical America and has widely naturized from tropical to warm temperate regions in Europe, Africa, Asia, Australia, and North and South America. The species has infested a wide range of habitats such as grasslands, forests, wetlands, streamlines, coastal areas, pasture, plantations, agricultural fields, roadsides, and railway sides and has become a noxious invasive weed species. B. pilosa forms thick monospecific stands, quickly expands, and threatens the indigenous plant species and crop production. It is also involved in pathogen transmission as a vector. The species was reported to have (1) a high growth ability, producing several generations in a year; (2) a high achene production rate; (3) different biotypes of cypselae, differently germinating given the time and condition; (4) a high adaptative ability to various environmental conditions; (5) an ability to alter the microbial community, including mutualism with arbuscular mycorrhizal fungi; and (6) defense functions against natural enemies and allelopathy. The species produces several potential allelochemicals such as palmitic acid, p-coumaric acid, caffeic acid, ferulic acid, p-hydroxybenzoic acid, vanillic acid, salycilic acid, quercetin, α-pinene, and limonene and compounds involved in the defense functions such as 1-phenylhepta-1,3,5-trine, 5-phenyl-2-(1-propynyl)-thiophene, 5-actoxy-2-phenylethinyl-thiophene, and icthyothereol acetate. These characteristics of B. pilosa may contribute to the naturalization and invasiveness of the species in the introduced ranges. This is the first review article focusing on the invasive mechanisms of the species.
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Affiliation(s)
- Hisashi Kato-Noguchi
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan
| | - Denny Kurniadie
- Department of Agronomy, Faculty of Agriculture, Universitas Padjadjaran, Jalan Raya Bandung Sumedang Km 21, Jatinangor, Sumedang 45363, Jawa Barat, Indonesia
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Ahmad M, Uniyal SK, Sharma P, Rathee S, Batish DR, Singh HP. Enhanced plasticity and reproductive fitness of floral and seed traits facilitate non-native species spread in mountain ecosystems. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 348:119222. [PMID: 37862892 DOI: 10.1016/j.jenvman.2023.119222] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/20/2023] [Accepted: 10/02/2023] [Indexed: 10/22/2023]
Abstract
Floral and seed traits, their relationships, and responses to abiotic constraints are considered the key determinants of the invasion success of non-native plant species. However, studies evaluating the pattern of floral and seed traits of non-native species in mountain ecosystems are lacking. In this study, we determined (a) whether the floral and seed traits of native and non-native species show similarity or dissimilarity across elevations in mountains, and (b) whether the non-native species follow different allometric patterns compared with native species. Functional variations between native and non-native species were assessed through floral and seed traits: flower count, flower display area, flower mass, specific flower area, seed count, and seed mass across an elevational gradient. Permanent plots (20 × 20 m) were laid at each 100 m elevation rise from 2000 to 4000 m a.s.l. for sampling of herbaceous plant species. The mean values of floral and seed traits such as flower display area, specific flower area, and seed count were significantly higher for non-native species compared to native species. A significant difference in trait values (flower display area, flower mass, seed count, and seed mass) between non-native species and native species was observed along the elevational gradient, except for flower count and specific flower area. The bivariate relationship revealed non-native species to exhibit a stronger relationship between flower display area ∼ flower mass, and flower display area ∼ seed mass traits than the native species. Non-native species showed enhanced reproductive ability under varying environmental conditions along an elevational gradient in mountain ecosystems. Greater flower display area and seed mass at lower elevations and a stronger overall trait-trait relationship among non-native species implied resource investment in pollinator visualization, flower mass, and seed quality over seed quantity. The study concludes that enhanced plasticity and reproductive fitness of floral and seed traits would consequently aid non-native species to adapt, become invasive, and displace native species in mountain ecosystems if the climatic barriers acting on non-native species are reduced with climate change.
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Affiliation(s)
- Mustaqeem Ahmad
- Department of Environment Studies, Panjab University, Chandigarh, India; Department of Environmental Technology, CSIR-IHBT, Palampur, India
| | - Sanjay K Uniyal
- Department of Environmental Technology, CSIR-IHBT, Palampur, India
| | - Padma Sharma
- Department of Environment Studies, Panjab University, Chandigarh, India
| | - Sonia Rathee
- Department of Botany, Panjab University, Chandigarh, India
| | - Daizy R Batish
- Department of Botany, Panjab University, Chandigarh, India
| | - Harminder P Singh
- Department of Environment Studies, Panjab University, Chandigarh, India.
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Tesfay YB, Blaschke A, Kreyling J. An inferior competitor is a successful invader due to its stress tolerance and productivity. Sci Rep 2023; 13:20694. [PMID: 38001336 PMCID: PMC10673848 DOI: 10.1038/s41598-023-48152-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 11/22/2023] [Indexed: 11/26/2023] Open
Abstract
The invasion of ecosystems by non-native species is recognized as one of the most significant global challenges, particularly in semiarid regions where native biodiversity is already under stress from drought and land degradation. The implicit assumption is that invaders are strong competitors, but a greenhouse pairwise experiment conducted to examine intraspecific and interspecific competition effects of Opuntia ficus-indica, a widespread invader in semiarid ecosystems, with two species native to the highlands of Eritrea, Ricinus communis and Solanum marginatum, revealed that O. ficus-indica is a weak competitor. The unique ability of O. ficus-indica's fallen cladodes to undergo vegetative growth becomes a fundamental trait contributing to its spread. This growth strategy allows O. ficus-indica to outgrow native species and establish a significant presence. In direct interaction, the competition in aboveground productivity measured by the logarithmic response ratio for O. ficus-indica was 3.4-fold and 5.9-fold higher than for R. communis and S. marginatum, respectively. Belowground, the native R. communis was facilitated (- 1.00 ± 0.69) by O. ficus-indica which itself suffered from high competition. This pattern became even more evident under water shortage, where aboveground competition for S. marginatum decreased 5.7-fold, and for O. ficus-indica, it increased 1.4-fold. Despite being a poor competitor, O. ficus-indica outperformed R. communis and S. marginatum in both aboveground (4.3 and 3.8 times more) and belowground (27 and 2.8 times more) biomass production, respectively. The findings of this study challenge the common interpretation that invasive species are strong competitors and highlight the importance of considering other factors, such as productivity and tolerance limits when assessing the potential impacts of invasive species on semiarid ecosystems.
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Affiliation(s)
- Yohannes B Tesfay
- Experimental Plant Ecology, Institute of Botany and Landscape Ecology, University of Greifswald, 17489, Greifswald, Germany.
| | - Annika Blaschke
- Experimental Plant Ecology, Institute of Botany and Landscape Ecology, University of Greifswald, 17489, Greifswald, Germany
| | - Juergen Kreyling
- Experimental Plant Ecology, Institute of Botany and Landscape Ecology, University of Greifswald, 17489, Greifswald, Germany
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11
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Ni M, Luo H, Xu H, Chu C, Fang S. High temperature can improve the performance of invasive plants by facilitating root growth. AMERICAN JOURNAL OF BOTANY 2023; 110:e16227. [PMID: 37561668 DOI: 10.1002/ajb2.16227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 08/12/2023]
Abstract
PREMISE The ever-increasing temperatures of the Anthropocene may facilitate plant invasions. To date, studies of temperature effects on alien plants have mainly focused on aboveground plant traits but ignored belowground traits, which may confound predictions of plant invasion risks. METHODS The temperature effects on the root growth dynamics of two alien shrubs, invasive Mimosa sepiaria and naturalized Corchorus capsulari, were studied using a 3D, transparent growth system under five temperature treatments (day/night: 18°C/13°C to 34°C/29°C) that cover the present and future warming temperature scenarios in China. We measured root depth and width growth in response to temperature treatments over 84 days. We also investigated intra- and interspecific competition of paired plants of the two species grown together at the five temperatures. RESULTS Shoot growth of M. sepiaria and C. capsularis was optimal at the mid-range temperature. Root growth, however, was faster at the highest temperature (34°C/29°C) for M. sepiaria, but decreased for C. capsularis as temperatures increased. Root depth growth was more sensitive than root width for both species during neighbor competition. Compared to C. capsularis, M. sepiaria had relatively greater advantage during intra- and interspecific competition with increasing temperature, possibly because of its better root growth at high temperatures. CONCLUSIONS These results suggest that temperature increases can improve the performance of some alien plants by facilitating width and depth growth of their roots. This enhancement requires serious attention when managing and predicting invasion risk.
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Affiliation(s)
- Ming Ni
- Department of Ecology, State Key Laboratory of Biocontrol and School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Hongxia Luo
- Department of Ecology, State Key Laboratory of Biocontrol and School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Han Xu
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
| | - Chengjin Chu
- Department of Ecology, State Key Laboratory of Biocontrol and School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Suqin Fang
- Department of Ecology, State Key Laboratory of Biocontrol and School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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12
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Hu D, Khan IU, Wang J, Shi X, Jiang X, Qi S, Dai Z, Mao H, Du D. Invasive Wedelia trilobata Performs Better Than Its Native Congener in Various Forms of Phosphorous in Different Growth Stages. PLANTS (BASEL, SWITZERLAND) 2023; 12:3051. [PMID: 37687298 PMCID: PMC10490449 DOI: 10.3390/plants12173051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/10/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023]
Abstract
At present, many hypotheses have been proposed to explain the mechanism of alien plants' successful invasion; the resource fluctuations hypothesis indicates that nutrient availability is a main abiotic factor driving the invasion of alien plants. Higher phosphorus utilization and absorption efficiency might be one of the important reasons for alien plants successful invasion. Wedelia trilobata, one of the notorious invasive weeds in China, possesses a strong ability to continue their development under infertile habitats. In this study, firstly, W. trilobata and its native congener, W. chinensis, were grown in various phosphorus forms to test their absorption efficiency of phosphorus. Secondly, the different responses of W. trilobata and W. chinensis to the insoluble phosphorus in three growth stages (at 30, 60, and 150 days cultivation) were also tested. The results showed that the growth rate, root morphology, and phosphorus absorption efficiency of W. trilobata under various insoluble, organic, or low phosphorus conditions were significantly higher than that of W. chinensis. During the short-term cultivation period (30 d), the growth of W. trilobata under insoluble and low phosphorus treatments had no significant difference, and the growth of W. trilobata in insoluble phosphorus treatment also had no significant effect in long-term cultivation (60 and 150 d). However, the growth of W. chinensis in each period under the conditions of insoluble and low phosphorus was significantly inhibited throughout these three growth stages. Therefore, invasive W. trilobata had a higher phosphorus utilization efficiency than its native congener. This study could explain how invasive W. trilobata performs under nutrient-poor habitats, while also providing favorable evidence for the resource fluctuations hypothesis.
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Affiliation(s)
- Die Hu
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (D.H.); (J.W.); (X.J.); (H.M.)
| | - Irfan Ullah Khan
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (I.U.K.); (X.S.); (Z.D.); (D.D.)
| | - Jiahao Wang
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (D.H.); (J.W.); (X.J.); (H.M.)
| | - Xinning Shi
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (I.U.K.); (X.S.); (Z.D.); (D.D.)
| | - Xinqi Jiang
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (D.H.); (J.W.); (X.J.); (H.M.)
| | - Shanshan Qi
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (D.H.); (J.W.); (X.J.); (H.M.)
| | - Zhicong Dai
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (I.U.K.); (X.S.); (Z.D.); (D.D.)
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Hanping Mao
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (D.H.); (J.W.); (X.J.); (H.M.)
| | - Daolin Du
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (I.U.K.); (X.S.); (Z.D.); (D.D.)
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13
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Du L, Oduor AMO, Zuo W, Liu H, Li J. Directional and stabilizing selection shaped morphological, reproductive, and physiological traits of the invader Solidago canadensis. Ecol Evol 2023; 13:e10410. [PMID: 37636867 PMCID: PMC10450839 DOI: 10.1002/ece3.10410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 07/01/2023] [Accepted: 07/25/2023] [Indexed: 08/29/2023] Open
Abstract
Trait evolution in invasive plant species is important because it can impact demographic parameters key to invasion success. Invasive plant species often show phenotypic clines along geographic and climatic gradients. However, the relative contributions of natural selection and neutral evolutionary processes to phenotypic trait variation among populations of invasive plants remain unclear. A common method to assess whether a trait has been shaped by natural selection or neutral evolutionary processes is to compare the geographical pattern for the trait of interest to the divergence in neutral genetic loci (i.e., Q ST -F ST comparisons). Subsequently, a redundancy analysis (RDA) can facilitate identification of putative agents of natural selection on the trait. Here, we employed both a Q ST -F ST comparisons approach and RDA to infer whether natural selection shaped traits of invasive populations of Solidago canadensis in China and identify the potential environmental drivers of natural selection. We addressed two questions: (1) Did natural selection drive phenotypic trait variation among S. canadensis populations? (2) Did climatic, latitudinal, longitudinal, and altitudinal gradients drive patterns of genetic variation among S. canadensis populations? We found significant directional selection for several morphological and reproductive traits (i.e., Q ST > F ST) and stabilizing selection for physiological traits (i.e., Q ST < F ST). The RDA showed that stem biomass of S. canadensis was strongly positively correlated with longitude, while leaf width ratio and specific leaf area were significantly positively correlated with the mean diurnal range. Stem biomass had a strong negative correlation with annual precipitation. Moreover, height of S. canadensis individuals was strongly positively correlated with altitude and precipitation of the wettest quarter. A longitudinal shift in precipitation seasonality likely selected for larger stem biomass in S. canadensis. Overall, these results suggest that longitudinal and altitudinal clines in climate exerted strong selection pressures that shaped the phenotypic traits of S. canadensis.
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Affiliation(s)
- Leshan Du
- State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental SciencesBeijingChina
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and ConservationTaizhou UniversityTaizhouChina
| | - Ayub M. O. Oduor
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and ConservationTaizhou UniversityTaizhouChina
- Department of Applied BiologyTechnical University of KenyaNairobiKenya
| | - Wei Zuo
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and ConservationTaizhou UniversityTaizhouChina
- Sanofi (Hangzhou) Pharmaceuticals Co. Ltd.HangzhouChina
| | - Haiyan Liu
- State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental SciencesBeijingChina
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and ConservationTaizhou UniversityTaizhouChina
| | - Jun‐Min Li
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and ConservationTaizhou UniversityTaizhouChina
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14
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Li X, Zhang Y, Kong FL, Naz M, Zhou JY, Qi SS, Dai ZC, Du DL. Invasive Plant Alternanthera philoxeroides Benefits More Competition Advantage from Rhizosphere Bacteria Regardless of the Host Source. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112085. [PMID: 37299065 DOI: 10.3390/plants12112085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/07/2023] [Accepted: 05/17/2023] [Indexed: 06/12/2023]
Abstract
The rhizosphere plays a vital role in the exchange of materials in the soil-plant ecosystem, and rhizosphere microorganisms are crucial for plant growth and development. In this study, we isolated two strains of Pantoea rhizosphere bacteria separately from invasive Alternanthera philoxeroides and native A. sessilis. We conducted a control experiment to test the effects of these bacteria on the growth and competition of the two plant species using sterile seedlings. Our findings showed that the rhizobacteria strain isolated from A. sessilis significantly promoted the growth of invasive A. philoxeroides in monoculture compared to native A. sessilis. Both strains significantly enhanced the growth and competitiveness of invasive A. philoxeroides under competition conditions, regardless of their host source. Our study suggests that rhizosphere bacteria, including those from different host sources, can contribute to the invasion of A. philoxeroides by significantly enhancing its competitiveness.
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Affiliation(s)
- Xu Li
- School of Emergency Management, Jiangsu University, Zhenjiang 212013, China
- Institute of Environment and Ecology, School of the Environmental and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yi Zhang
- Institute of Environment and Ecology, School of the Environmental and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Fang-Li Kong
- Institute of Environment and Ecology, School of the Environmental and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Misbah Naz
- Institute of Environment and Ecology, School of the Environmental and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jian-Yu Zhou
- Institute of Environment and Ecology, School of the Environmental and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shan-Shan Qi
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhi-Cong Dai
- School of Emergency Management, Jiangsu University, Zhenjiang 212013, China
- Institute of Environment and Ecology, School of the Environmental and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Dao-Lin Du
- Institute of Environment and Ecology, School of the Environmental and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
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15
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Morrison CR, Rhodes AC, Bowman EA, Plowes RM, Sedio BE, Gilbert LE. Adding insult to injury: Light competition and allelochemical weapons interact to facilitate grass invasion. Ecosphere 2023. [DOI: 10.1002/ecs2.4438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023] Open
Affiliation(s)
- Colin R. Morrison
- Department of Integrative Biology The University of Texas at Austin Austin Texas USA
- Brackenridge Field Laboratory The University of Texas at Austin Austin Texas USA
| | - Aaron C. Rhodes
- Department of Integrative Biology The University of Texas at Austin Austin Texas USA
- Brackenridge Field Laboratory The University of Texas at Austin Austin Texas USA
| | - Elizabeth A. Bowman
- Department of Integrative Biology The University of Texas at Austin Austin Texas USA
- Brackenridge Field Laboratory The University of Texas at Austin Austin Texas USA
| | - Robert M. Plowes
- Department of Integrative Biology The University of Texas at Austin Austin Texas USA
- Brackenridge Field Laboratory The University of Texas at Austin Austin Texas USA
| | - Brian E. Sedio
- Department of Integrative Biology The University of Texas at Austin Austin Texas USA
- Smithsonian Tropical Research Institute Panama Republic of Panama
| | - Lawrence E. Gilbert
- Department of Integrative Biology The University of Texas at Austin Austin Texas USA
- Brackenridge Field Laboratory The University of Texas at Austin Austin Texas USA
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16
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Florianová A, Hanzelková V, Drtinová L, Pánková H, Cajthaml T, Münzbergová Z. Plant-soil interactions in the native range of two congeneric species with contrasting invasive success. Oecologia 2023; 201:461-477. [PMID: 36745217 PMCID: PMC9945059 DOI: 10.1007/s00442-023-05329-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 02/07/2023]
Abstract
The aim of this study was to compare plant-soil interactions in the native range of two congeneric European species differing in their invasive success in the world: a globally invasive Cirsium vulgare and non-invasive C. oleraceum. We assessed changes in soil nutrients and soil biota following soil conditioning by each species and compared performance of plants grown in self-conditioned and unconditioned soil, from which all, some or no biota was excluded. The invasive species depleted more nutrients than the non-invasive species and coped better with altered nutrient levels. The invasive species had higher seedling establishment which benefited from the presence of unconditioned biota transferred by soil filtrate. Biomass of both species increased in soil with self-conditioned soil filtrate and decreased in soil with self-conditioned whole-soil inoculum compared to unconditioned filtrate and inoculum. However, the increase was smaller and the decrease greater for the invasive species. The invasive species allocated less biomass to roots when associated with harmful biota, reducing negative effects of the biota on its performance. The results show that in the native range the invasive species is more limited by self-conditioned pathogens and benefits more from unconditioned mutualists and thus may benefit more from loss of effectively specialized soil biota in a secondary range. Our study highlights the utility of detailed plant-soil feedback research in species native range for understanding factors regulating species performance in their native range and pinpointing the types of biota involved in their regulation.
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Affiliation(s)
- Anna Florianová
- Department of Botany, Faculty of Science, Charles University in Prague, Benátská 2, 128 01, Prague, Czech Republic.
- Institute of Botany of the Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic.
| | - Věra Hanzelková
- Department of Botany, Faculty of Science, Charles University in Prague, Benátská 2, 128 01, Prague, Czech Republic
- Institute of Botany of the Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
| | - Lucie Drtinová
- Department of Botany, Faculty of Science, Charles University in Prague, Benátská 2, 128 01, Prague, Czech Republic
| | - Hana Pánková
- Institute of Botany of the Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
| | - Tomáš Cajthaml
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská, 1083, 142 20, Prague, Czech Republic
- Institute for Environmental Studies, Faculty of Science, Charles University in Prague, Benátská 2, 128 01, Prague, Czech Republic
| | - Zuzana Münzbergová
- Department of Botany, Faculty of Science, Charles University in Prague, Benátská 2, 128 01, Prague, Czech Republic
- Institute of Botany of the Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
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17
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Huang P, Hameed R, Abbas M, Balooch S, Alharthi B, Du Y, Abbas A, Younas A, Du D. Integrated omic techniques and their genomic features for invasive weeds. Funct Integr Genomics 2023; 23:44. [PMID: 36680630 DOI: 10.1007/s10142-023-00971-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/01/2023] [Accepted: 01/11/2023] [Indexed: 01/22/2023]
Abstract
Many emerging invasive weeds display rapid adaptation against different stressful environments compared to their natives. Rapid adaptation and dispersal habits helped invasive populations have strong diversity within the population compared to their natives. Advances in molecular marker techniques may lead to an in-depth understanding of the genetic diversity of invasive weeds. The use of molecular techniques is rapidly growing, and their implications in invasive weed studies are considered powerful tools for genome purposes. Here, we review different approach used multi-omics by invasive weed studies to understand the functional structural and genomic changes in these species under different environmental fluctuations, particularly, to check the accessibility of advance-sequencing techniques used by researchers in genome sequence projects. In this review-based study, we also examine the importance and efficiency of different molecular techniques in identifying and characterizing different genes, associated markers, proteins, metabolites, and key metabolic pathways in invasive and native weeds. Use of these techniques could help weed scientists to further reduce the knowledge gaps in understanding invasive weeds traits. Although these techniques can provide robust insights about the molecular functioning, employing a single omics platform can rarely elucidate the gene-level regulation and the associated real-time expression of weedy traits due to the complex and overlapping nature of biological interactions. We conclude that different multi-omic techniques will provide long-term benefits in launching new genome projects to enhance the understanding of invasive weeds' invasion process.
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Affiliation(s)
- Ping Huang
- Institute of Environment and Ecology, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Rashida Hameed
- Institute of Environment and Ecology, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Manzer Abbas
- School of Agriculture, Forestry and Food Engineering, Yibin University, Yibin, 644000, Sichuan Province, People's Republic of China
| | - Sidra Balooch
- Institute of Botany, Bahauddin Zakariya University, Multan, Punjab, Pakistan
| | - Badr Alharthi
- Department of Biology, University College of Al Khurmah, Taif University, PO. Box 11099, Taif, 21944, Saudi Arabia
| | - Yizhou Du
- Faculty of Engineering, School of Computer Science, University of Sydney, Sydney, New South Wales, Australia
| | - Adeel Abbas
- Institute of Environment and Ecology, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China.
| | - Afifa Younas
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Daolin Du
- Institute of Environment and Ecology, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China.
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18
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Woods MJ, Bauer JT, Schaeffer D, McEwan RW. Pyrus calleryana extracts reduce germination of native grassland species, suggesting the potential for allelopathic effects during ecological invasion. PeerJ 2023; 11:e15189. [PMID: 37123008 PMCID: PMC10143590 DOI: 10.7717/peerj.15189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/15/2023] [Indexed: 05/02/2023] Open
Abstract
Invasive plant species' success may be a result of allelopathy, or the release of secondary metabolites that are harmful for surrounding plant species. Allelopathy can be mediated through the abiotic environment by chemical sorption or transformation, so the substrate on which interactions occur can lead to differential outcomes in allelopathic potential. One aggressive invader, Pyrus calleryana, has become dominant in many ecosystems throughout Eastern US, and has reduced the abundance of native species where it invades. Thus, our goal was to identify if P. calleryana had allelopathic potential by testing the impact of leaf and flower leachate on gemination of six common grassland species (three grasses and three forbs) in either sterilized sand or field collected soils. Germination of five out of six tested species was reduced by P. calleryana leaf litter, with weaker impacts from flower leachate. This suggests that allelopathy is one mechanism driving the success of P. calleryana and that allelopathic effects may change with plant phenology. For instance, P. calleryana has late leaf senescence in the fall and copious blooming in the spring that may elongate the timeframe that allelopathic inhibition can occur. Further, germination was higher in sand than in soil, suggesting that the context of the abiotic environment can mediate this relationship. In our study, two grass species that could be overabundant in restored grasslands had higher germination rates in soil than sand and one was not altered by P. calleryana suggesting that this relationship could further promote the overabundance of grass species. Taken together, P. calleryana likely inhibits the germination of native species where it invades, but there is context dependency of this relationship with both soil chemistry and seasonality.
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Affiliation(s)
- Michaela J. Woods
- Biology Department, University of Dayton, Dayton, OH, United States of America
| | - Jonathan T. Bauer
- Department of Biology and the Institute for the Environment and Sustainability, Miami University of Ohio, Oxford, OH, United States of America
| | - Dena Schaeffer
- Biology Department, University of Dayton, Dayton, OH, United States of America
| | - Ryan W. McEwan
- Biology Department, University of Dayton, Dayton, OH, United States of America
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Yang B, Cui M, Dai Z, Li J, Yu H, Fan X, Rutherford S, Du D. Non-Additive Effects of Environmental Factors on Growth and Physiology of Invasive Solidago canadensis and a Co-Occurring Native Species ( Artemisia argyi). PLANTS (BASEL, SWITZERLAND) 2022; 12:128. [PMID: 36616257 PMCID: PMC9823473 DOI: 10.3390/plants12010128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/04/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Changes in environmental factors, such as temperature and UV, have significant impacts on the growth and development of both native and invasive plant species. However, few studies examine the combined effects of warming and enhanced UV on plant growth and performance in invasive species. Here, we investigated single and combined effects of warming and UV radiation on growth, leaf functional and photosynthesis traits, and nutrient content (i.e., total organic carbon, nitrogen and phosphorous) of invasive Solidago canadensis and its co-occurring native species, Artemisia argyi, when grown in culture racks in the greenhouse. The species were grown in monoculture and together in a mixed community, with and without warming, and with and without increased UV in a full factorial design. We found that growth in S. canadensis and A. argyi were inhibited and more affected by warming than UV-B radiation. Additionally, there were both antagonistic and synergistic interactions between warming and UV-B on growth and performance in both species. Overall, our results suggested that S. canadensis was more tolerant to elevated temperatures and high UV radiation compared to the native species. Therefore, substantial increases in temperature and UV-B may favour invasive S. canadensis over native A. argyi. Research focusing on the effects of a wider range of temperatures and UV levels is required to improve our understanding of the responses of these two species to greater environmental variability and the impacts of climate change.
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20
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Avoid, tolerate, or escape? Native vegetation responses to invasion vary between functional groups. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02983-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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21
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Chiquillo KL, Barber PH, Vasquez MI, Cruz‐Rivera E, Willette DA, Winters G, Fong P. An invasive seagrass drives its own success in two invaded seas by both negatively affecting native seagrasses and benefiting from those costs. OIKOS 2022. [DOI: 10.1111/oik.09403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Kelcie L. Chiquillo
- Dept of Ecology and Evolutionary Biology, Univ. of California, Los Angeles Los Angeles CA USA
| | - Paul H. Barber
- Dept of Ecology and Evolutionary Biology, Univ. of California, Los Angeles Los Angeles CA USA
| | - Marlen I. Vasquez
- Dept of Chemical Engineering, Cyprus Univ. of Technology Limassol Cyprus
| | - Edwin Cruz‐Rivera
- Dept of Biology and Bioenvironmental Science Program, Morgan State Univ. Baltimore MD USA
| | | | - Gidon Winters
- Dead Sea and Arava Science Center, Masada National Park Masada Israel
- Eilat Campus, Ben‐Gurion Univ. of the Negev Eilat Israel
| | - Peggy Fong
- Dept of Ecology and Evolutionary Biology, Univ. of California, Los Angeles Los Angeles CA USA
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22
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Yang B, Cui M, Du Y, Ren G, Li J, Wang C, Li G, Dai Z, Rutherford S, Wan JSH, Du D. Influence of multiple global change drivers on plant invasion: Additive effects are uncommon. FRONTIERS IN PLANT SCIENCE 2022; 13:1020621. [PMID: 36452088 PMCID: PMC9702074 DOI: 10.3389/fpls.2022.1020621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/26/2022] [Indexed: 06/17/2023]
Abstract
Invasive plants threaten biodiversity and cause huge economic losses. It is thought that global change factors (GCFs) associated with climate change (including shifts in temperature, precipitation, nitrogen, and atmospheric CO2) will amplify their impacts. However, only few studies assessed mixed factors on plant invasion. We collated the literature on plant responses to GCFs to explore independent, combined, and interactive effects on performance and competitiveness of native and invasive plants. From 176 plant species, our results showed that: (1) when native and invasive plants are affected by both independent and multiple GCFs, there is an overall positive effect on plant performance, but a negative effect on plant competitiveness; (2) under increased precipitation or in combination with temperature, most invasive plants gain advantages over natives; and (3) interactions between GCFs on plant performance and competitiveness were mostly synergistic or antagonistic. Our results indicate that native and invasive plants may be affected by independent or combined GCFs, and invasive plants likely gain advantages over native plants. The interactive effects of factors on plants were non-additive, but the advantages of invasive plants may not increase indefinitely. Our findings show that inferring the impacts of climate change on plant invasion from factors individually could be misleading. More mixed factor studies are needed to predict plant invasions under global change.
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Affiliation(s)
- Bin Yang
- Institute of Environment and Ecology, Academy of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - MiaoMiao Cui
- Institute of Environment and Ecology, Academy of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - YiZhou Du
- School of Computer Science, Faculty of Engineering, University of Sydney, Darlington, NSW, Australia
| | - GuangQian Ren
- Institute of Environment and Ecology, Academy of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Jian Li
- Institute of Environment and Ecology, Academy of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - CongYan Wang
- Institute of Environment and Ecology, Academy of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - GuanLin Li
- Institute of Environment and Ecology, Academy of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - ZhiCong Dai
- Institute of Environment and Ecology, Academy of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Susan Rutherford
- Institute of Environment and Ecology, Academy of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Justin S. H. Wan
- Institute of Environment and Ecology, Academy of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - DaoLin Du
- Institute of Environment and Ecology, Academy of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
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23
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Fernández‐Palacios JM, Schrader J, de Nascimento L, Irl SDH, Sánchez‐Pinto L, Otto R. Are plant communities on the Canary Islands resistant to plant invasion? DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- José María Fernández‐Palacios
- Island Ecology and Biogeography Group, Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC) Universidad de La Laguna (ULL) La Laguna Spain
| | - Julian Schrader
- School of Natural Sciences Macquarie University Sydney New South Wales Australia
- Department of Biodiversity, Macroecology and Biogeography University of Goettingen Goettingen Germany
| | - Lea de Nascimento
- Island Ecology and Biogeography Group, Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC) Universidad de La Laguna (ULL) La Laguna Spain
| | - Severin D. H. Irl
- Biogeography and Biodiversity Lab, Institute of Physical Geography Goethe‐ University Frankfurt Frankfurt am Main Germany
| | | | - Rüdiger Otto
- Department of Botany, Ecology and Plant Physiology Universidad de La Laguna (ULL) La Laguna Spain
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24
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Li W, Wang Z, He S. Effects of species richness and nutrient availability on the invasibility of experimental microalgal microcosms. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2022.e02304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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25
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Selective and clear-cut logging have varied imprints on tree community structure in a moist semi-deciduous forest in Ghana. Heliyon 2022; 8:e11393. [PMID: 36387494 PMCID: PMC9649955 DOI: 10.1016/j.heliyon.2022.e11393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 06/08/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
Logging-induced disturbance can be an important agent of change in tropical forests. Understanding the relative impacts of specific logging regimes on tree community structure is essential for forest management and biodiversity conservation. In this study, we assessed the response of tree community structure to selective and clear-cut logging in a moist semi-deciduous forest in Ghana. We quantified the diversity, composition, density and basal area of trees (diameter at breast height ≥5 cm) in 30 20 × 20 m plots in each of three forest management systems (selectively logged, clear-cut logged, old-growth). Our results showed that the two logged forests harboured significantly lower tree species diversity than the old-growth forest. Nevertheless, the selectively logged forest supported significantly higher tree species diversity than the clear-cut logged forest. Similarly, both logging regimes caused shifts in tree species composition, but the shift was higher in the clear-cut forest than the selectively logged forest, indicating a better recovery in the selective logging stands. Selective and clear-cut logged forests supported similar stem density of trees, but they were lower than that of the old-growth forest. Finally, the old-growth forest exhibited significantly higher basal area than the selectively logged forest, which in turn, had significantly higher basal area than the clear-cut logged forest. Overall, selective logging imprints on tree community structure were lower than clear-cut logging due to faster recovery by the former. Our findings suggest that logged tropical forests may require a long period to fully recover.
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26
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Yin D, Meiners SJ, Ni M, Ye Q, He F, Cadotte MW. Positive interactions of native species melt invasional meltdown over
long‐term
plant succession. Ecol Lett 2022; 25:2584-2596. [DOI: 10.1111/ele.14127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/24/2022] [Accepted: 08/30/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Deyi Yin
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden Chinese Academy of Sciences Guangzhou China
- South China National Botanical Garden Guangzhou China
| | - Scott J. Meiners
- Department of Biological Sciences Eastern Illinois University Charleston Illinois USA
| | - Ming Ni
- Département de Biologie Université de Sherbrooke Sherbrooke Quebec Canada
| | - Qing Ye
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden Chinese Academy of Sciences Guangzhou China
- South China National Botanical Garden Guangzhou China
| | - Fangliang He
- Department of Renewable Resources University of Alberta Edmonton Alberta Canada
- ECNU‐Alberta Joint Lab for Biodiversity Study, Tiantong Forest Ecosystem National Observation and Research Station, School of Ecology and Environmental Sciences East China Normal University Shanghai China
| | - Marc W. Cadotte
- Department of Biological Sciences University of Toronto‐Scarborough Toronto Ontario Canada
- Ecology and Evolutionary Biology University of Toronto Toronto Ontario Canada
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27
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Bowler CH, Shoemaker LG, Weiss‐Lehman C, Towers IR, Mayfield MM. Positive effects of exotic species dampened by neighborhood heterogeneity. Ecology 2022; 103:e3779. [PMID: 35657139 PMCID: PMC9787102 DOI: 10.1002/ecy.3779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 02/01/2022] [Accepted: 04/19/2022] [Indexed: 12/30/2022]
Abstract
It is well known that species interactions between exotic and native species are important for determining the success of biological invasions and how influential exotic species become in invaded communities. The strength and type of interactions between species can substantially vary, however, from negative and detrimental to minimal or even positive. Increasing evidence from the literature shows that exotic species have positive interactions with native species more often than originally thought. Gaps in our theory for how population growth is limited when interactions are positive, however, restrict our understanding of the mechanisms by which exotic "facilitators" contribute to diversity maintenance in invaded systems. Here, we quantified interactions between seven native and four exotic (established nonnative) common annual plant species in the highly diverse, York Gum woodlands of Western Australia. We used a Bayesian demographic modeling approach that allowed for interaction coefficients to be positive or negative, and explored key sources of variation in species responses to native and exotic neighbors at per capita (individual) and neighborhood levels. We observed positive per capita effects from exotic neighbors on exotic focal species as well as on several native focal species. However, all focal species were, on average, inhibited by their interaction neighborhood, when the variance in identity and abundance of observed neighbors was considered. At the neighborhood scale, exotic species were found to suppress all focal species, particularly those with high intrinsic fecundity. Our study demonstrates that within-neighborhood heterogeneity can regulate per capita positive effects of invaders, limiting runaway population growth of both natives and exotic invaders.
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Affiliation(s)
- Catherine H. Bowler
- School of Biological SciencesUniversity of QueenslandBrisbaneQueenslandAustralia
| | | | | | - Isaac R. Towers
- School of Biological, Earth and Environmental SciencesUniversity of New South WalesSydneyNew South WalesAustralia
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28
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Walczyk AM, Hersch-Green EI. Do water and soil nutrient scarcities differentially impact the performance of diploid and tetraploid Solidago gigantea (Giant Goldenrod, Asteraceae)? PLANT BIOLOGY (STUTTGART, GERMANY) 2022; 24:1031-1042. [PMID: 35727918 DOI: 10.1111/plb.13448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Plants require water and nutrients for survival, although the effects of their availabilities on plant fitness differ amongst species. Genome size variation, within and across species, is suspected to influence plant water and nutrient requirements, but little is known about how variations in these resources concurrently affect plant fitness based on genome size. We examined how genome size variation between autopolyploid cytotypes influences plant morphological and physiological traits, and whether cytotype-specific trait responses differ based on water and/or nutrient availability. Diploid and autotetraploid Solidago gigantea (Giant Goldenrod) were grown in a greenhouse under four soil water:N+P treatments (L:L, L:H, H:L, H:H), and stomata characteristics (size, density), growth (above- and belowground biomass, R/S), and physiological (Anet , E, WUE) responses were measured. Resource availabilities and cytotype identity influenced some plant responses but their effects were independent of each other. Plants grown in high-water and nutrient treatments were larger, plants grown in low-water or high-nutrient treatments had higher WUE but lower E, and Anet and E rates decreased as plants aged. Autotetraploids also had larger and fewer stomata, higher biomass and larger Anet than diploids. Nutrient and water availability could influence intra- and interspecific competitive outcomes. Although S. gigantea cytotypes were not differentially affected by resource treatments, genome size may influence cytogeographic range patterning and population establishment likelihood. For instance, the larger size of autotetraploid S. gigantea might render them more competitive for resources and niche space than diploids.
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Affiliation(s)
- A M Walczyk
- Department of Biological Sciences, Michigan Technological University, Houghton, MI, USA
| | - E I Hersch-Green
- Department of Biological Sciences, Michigan Technological University, Houghton, MI, USA
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29
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Zettlemoyer MA, Ellis SL, Hale CW, Horne EC, Thoen RD, DeMarche ML. Limited evidence for phenological differences between non-native and native species. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.983172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Although many species shift their phenology with climate change, species vary significantly in the direction and magnitude of these responses (i.e., phenological sensitivity). Studies increasingly detect early phenology or high phenological sensitivity to climate in non-native species, which may favor non-native species over natives in warming climates. Yet relatively few studies explicitly compare phenological responses to climate between native vs. non-native species or between non-native populations in the native vs. introduced range, limiting our ability to quantify the role of phenology in invasion success. Here, we review the empirical evidence for and against differences in phenology and phenological sensitivity to climate in both native vs. non-native species and native and introduced populations of non-native species. Contrary to common assumptions, native and non-native plant species did not consistently differ in mean phenology or phenological sensitivity. However, non-native plant species were often either just as or more sensitive, but rarely less sensitive, to climate as natives. Introduced populations of non-native plant species often show earlier reproduction than native populations of the same species, but there was mixed evidence for differences in phenological sensitivity between introduced and native plant populations. We found very few studies comparing native vs. invasive animal phenology. Future work should characterize phenological sensitivity to climate in native vs. non-native plant and animal species, in native vs. introduced populations of non-native species, and across different stages of invasion, and should carefully consider how differences in phenology might promote invasion success or disadvantage native species under climate change.
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30
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Najberek K, Solarz W, Gąsienica-Staszeczek M, Olejniczak P. Role of enemy release and hybridization in the invasiveness of Impatiens balfourii and I. glandulifera. JOURNAL OF PLANT RESEARCH 2022; 135:637-646. [PMID: 35668243 DOI: 10.1007/s10265-022-01398-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
Comparative studies with taxonomically and geographically paired alien species that exhibit different degrees of success in their invasions may help to identify the factors that determine invasiveness. Examples of such species in Europe include the noninvasive Impatiens balfourii and invasive I. glandulifera. We tested whether the low invasiveness of I. balfourii in Europe may be explained by strong pressure from local enemies. Earlier studies of these two species provided support for their hybridization. We tested this phenomenon as the potential occurrence of I. glandulifera × I. balfourii hybrids might promote the evolution of the invasiveness of I. balfourii. Both species were germinated from seeds collected in 2015 on the Swiss-Italian border in Insubria and utilized in three experiments: (1) a common garden enemy release test (leaf damage or pest pressure), (2) a test of the pressure exerted by a generalist enemy and (3) hybridization test. In the first test, the effect of enemies was assessed by the level of leaf damage and the number of pests. In the second test, a food choice experiment with a generalist herbivore (Cepaea snails) was performed. In the hybridization test, the plants were placed in a climatic chamber for self-pollination and hand cross-pollination. Analyses of enemy release and Cepaea snail preference revealed that I. balfourii experienced higher enemy pressure than I. glandulifera; however, this was not reflected in the performance of the plants. Although I. glandulifera was larger, I. balfourii had greater fecundity. Thus, the invasion success of I. glandulifera could not be unambiguously attributed to its greater degree of release from enemies compared with the noninvasive I. balfourii. Additionally, we did not obtain any evidence of hybridization between the two species. Thus, we obtained no support for the hypothesis that the evolution of the invasiveness of I. balfourii could be enhanced through hybridization with I. glandulifera.
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Affiliation(s)
- Kamil Najberek
- Institute of Nature Conservation, Polish Academy of Sciences, Al. Adama Mickiewicza 33, 31-120, Kraków, Poland.
| | - Wojciech Solarz
- Institute of Nature Conservation, Polish Academy of Sciences, Al. Adama Mickiewicza 33, 31-120, Kraków, Poland
| | | | - Paweł Olejniczak
- Institute of Nature Conservation, Polish Academy of Sciences, Al. Adama Mickiewicza 33, 31-120, Kraków, Poland
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31
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Ali HE, Bucher SF. Effect of drought and nutrient availability on invaded plant communities in a semi-arid ecosystem. Ecol Evol 2022; 12:e9296. [PMID: 36177142 PMCID: PMC9463043 DOI: 10.1002/ece3.9296] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/26/2022] [Accepted: 08/25/2022] [Indexed: 11/10/2022] Open
Abstract
Ecosystem functions are heavily dependent on the functional composition of the plant community, i.e., the functional traits of plants forming the community. This, on the one hand, depends on plant occurrence, but on the other hand, depends on the intraspecific variability of functional traits of the species, which are influenced by climate and nutrient availability and affected by plant–plant interactions. To illustrate that, we studied the effects of drought and nitrogen addition (+ N), two important abiotic variables which are changing with ongoing global change, as well as their combined effect on the functional responses of grassland communities in semi‐arid environments of Northern Africa comprising of natural and invasive species. We conducted an experiment where we planted three native species and one invasive plant species in artificial communities of five individuals per species per plot. We exposed these communities to four different treatments: a drought treatment, an N‐addition treatment, the combination between drought and N‐addition, as well as a control. To assess the performance of plants within treatments, we measured selected plant functional traits (plant height, specific leaf area [SLA], leaf dry matter content [LDMC], N content of the leaves [Nmass], specific root length [SRL], and root diameter) for all individuals occurring in our plots, and additionally assessed the above and belowground biomass for each plant individual. We found that the invasive species showed a higher performance (higher biomass accumulation, taller plants, higher SLA, Nmass, SRL, and root diameter as well as lower LDMC) than the native species under drought conditions. The invasive species was especially successful with the combined impact of drought + N, which is a likely scenario in ongoing global change for our research area. Thus, plant functional traits might be a key factor for the invasion success of plant species which will be even more pronounced under ongoing global change.
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Affiliation(s)
- Hamada E Ali
- Botany and Microbiology Department, Faculty of Science Suez Canal University Ismailia Egypt.,Department of Biology, College of Science Sultan Qaboos University Muscat Oman
| | - Solveig Franziska Bucher
- Institute of Ecology and Evolution with Herbarium Haussknecht and Botanical Garden, Professorship of Plant Biodiversity Friedrich Schiller University Jena Jena Germany.,German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig Leipzig Germany
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32
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Comparing common fountain grass removal techniques: cost efficacy and response of native plant community. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02879-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
AbstractFountain grass (Pennisetum setaceum) is a globally pervasive invasive species and a prime example of an escaped horticultural ornamental. In areas where it is not naturally found, it displaces native plant communities and disrupts ecological systems and processes. Cost-effective removal efforts that protect the native plant community are needed for its control. We conducted an experiment from March 2018 to March 2021 in 5 m × 5 m plots to test the efficacy and record costs for common removal techniques (cut and herbicide, herbicide one or two times per year, manual removal) in the Sonoran Desert, Arizona, United States. Each treatment took 2.5 years to achieve control in the plots, and treatments did not negatively affect the native plant community. The response of native plants was mediated by year, such that native cover in treatment plots recovered to similar levels as uninvaded control plots with sufficient rainfall. Plots that received the manual removal treatment had almost five more native plant species than the invaded control treatment (22.7 ± 1.63 compared to 18.1 ± 1.61). Herbicide applied in spring and fall increased efficacy of removals in the first year but was not significantly different from the other treatments averaged over year. Herbicide once per year was most cost effective across different sized areas. Manual removal was also cost effective in small areas (< 0.06 hectares) but was more expensive than herbicide twice a year in larger areas. Our results provide a toolset that enables managers to select removal treatments based on a balance of convenience, resources, and scale of the infestation.
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33
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Yang Y, Bao L. Scale-dependent changes in species richness caused by invader competition. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.109996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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34
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Jędrzejczak E, Klichowska E, Nobis M. Effect of Rudbeckia laciniata invasion on soil seed banks of different types of meadow communities. Sci Rep 2022; 12:10965. [PMID: 35768488 PMCID: PMC9242978 DOI: 10.1038/s41598-022-14681-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 06/10/2022] [Indexed: 12/03/2022] Open
Abstract
In the last decades, biological invasions become the main driver of biodiversity loss. The changes can be noticed not only in the above-ground diversity but also in the underground, including seed banks of native vegetation. In this study, we focus on Rudbeckia laciniata, a species introduced to many European and Asian countries, to characterize its soil seed bank as well as to answer the question, how the species influenced soil seed banks of meadow plant communities in two types of habitats (fresh and wet), where traditional mowing was abandoned. Within the habitats, we conducted our study on a three-step scale of invasion, from full invasion, through the transition zone to the control zone, where no invasion of the species has been observed so far. The majority of the R. laciniata seeds were located in the surface layer of soil. We detected, that 47% (in fresh meadow) and 56% (wet meadow) of recorded species occurred only in a soil seed bank, and were absent in aboveground vegetation. Emergence of native plants from the soil seed bank is low due to rapid shading of the soil surface by R. laciniata seedlings. However, a short-term seed bank of the species gives hope that returning to regular mowing brings the desired results in its the elimination from vegetation, in a fairly short time.
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Affiliation(s)
- Elżbieta Jędrzejczak
- Institute of Botany, Faculty of Biology, Jagiellonian University, Gronostajowa 3, 30-387, Kraków, Poland.
| | - Ewelina Klichowska
- Institute of Botany, Faculty of Biology, Jagiellonian University, Gronostajowa 3, 30-387, Kraków, Poland
| | - Marcin Nobis
- Institute of Botany, Faculty of Biology, Jagiellonian University, Gronostajowa 3, 30-387, Kraków, Poland.
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ALIEN AND NATIVE DOMINANTS HAVE A SIMILAR EFFECT ON THE SPECIES RICHNESS OF SYNANTHROPIC PLANT COMMUNITIES OF THE WESTERN CAUCASUS. RUSSIAN JOURNAL OF BIOLOGICAL INVASIONS 2022. [DOI: 10.35885/1996-1499-15-2-2-17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
It remains unclear whether alien dominants, on average, have a stronger effect on the species richness of plant communities than native ones. We examined this issue on the example of 20 areas of synanthropic plant communities dominated by species of different biogeographic origin (the study area is the Western Caucasus, the Belaya River valley, 190-680 m above the sea level). Within each of them, samples of aboveground biomass were taken from 25-30 plots of 0.25 m with different coverings of dominants, which were then sorted by species and weighed. Analysis of the data has shown: 1) the average species richness of samples with a similar degree of dominance of alien and native species differs mainly insignificantly; 2) the close relationship between the degree of dominance of alien species and species richness is, on average, about the same as between the degree of dominance of native species and species richness; 3) the relationship between these characteristics in most cases can be satisfactorily explained on the basis of "energy-diversity" hypothesis; 4) the share of synanthropic plant species in communities with high participation of both alien and aboriginal dominants is not higher than in communities with low participation of these dominants. On the whole, our results indicate a similar and predominantly nonselective nature of the impact of alien and native dominants on accompanying species of communities.
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36
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Paz H, Ortiz-Alcaraz A, del-Val E. The effects of the aggressive species Pteridium caudatum on the vegetation of Socorro Island: Restoration challenges and opportunities. J Nat Conserv 2022. [DOI: 10.1016/j.jnc.2022.126160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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37
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Moravcová L, Carta A, Pyšek P, Skálová H, Gioria M. Long-term seed burial reveals differences in the seed-banking strategies of naturalized and invasive alien herbs. Sci Rep 2022; 12:8859. [PMID: 35614334 PMCID: PMC9132925 DOI: 10.1038/s41598-022-12884-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/16/2022] [Indexed: 11/09/2022] Open
Abstract
Soil seed viability and germinability dynamics can have a major influence on the establishment and spread of plants introduced beyond their native distribution range. Yet, we lack information on how temporal variability in these traits could affect the invasion process. To address this issue, we conducted an 8-year seed burial experiment examining seed viability and germinability dynamics for 21 invasive and 38 naturalized herbs in the Czech Republic. Seeds of most naturalized and invasive species persisted in the soil for several years. However, naturalized herbs exhibited greater seed longevity, on average, than invasive ones. Phylogenetic logistic models showed that seed viability (but not germinability) dynamics were significantly related to the invasion status of the study species. Seed viability declined earlier and more sharply in invasive species, and the probability of finding viable seeds of invasive species by the end of the experiment was low. Our findings suggest that invasive herbs might take advantage of high seed viability in the years immediately after dispersal, while naturalized species benefit from extended seed viability over time. These differences, however, are not sufficiently strong to explain the invasiveness of the species examined.
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Affiliation(s)
- Lenka Moravcová
- Department of Invasion Ecology, Institute of Botany of the Czech Academy of Sciences, Průhonice, Czech Republic
| | - Angelino Carta
- Botany Unit, Department of Biology, University of Pisa, Pisa, Italy
| | - Petr Pyšek
- Department of Invasion Ecology, Institute of Botany of the Czech Academy of Sciences, Průhonice, Czech Republic.,Department of Ecology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Hana Skálová
- Department of Invasion Ecology, Institute of Botany of the Czech Academy of Sciences, Průhonice, Czech Republic
| | - Margherita Gioria
- Department of Invasion Ecology, Institute of Botany of the Czech Academy of Sciences, Průhonice, Czech Republic.
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38
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Changes in Species and Functional Diversity of the Herb Layer of Riparian Forest despite Six Decades of Strict Protection. FORESTS 2022. [DOI: 10.3390/f13050747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The herb layer of temperate forests contributes to long-term forest ecosystem functioning and provisioning of ecosystem services. Therefore, a thorough understanding of its dynamics in the face of environmental changes is essential. This paper focuses on the species and functional diversity of the herb layer of riparian forests to verify how these two community components changed over time and under strict protection. The understory vegetation was surveyed on 42 semi-permanent plots in three time periods between 1960 and 2020. The overall pattern in vegetation changes that related to species richness and diversity, functional structure, and habitat conditions was analyzed using ordination and permutation techniques. We found significant changes in species composition and the functional structure of herbaceous vegetation over the last six decades. Forests were enriched with nutrient-demanding and alien species. A significant increase in functional diversity and the proportion of species with high SLA and canopy height was also observed, whereas changes in habitat conditions were insignificant. The observed trends indicate that the strict protection of forest communities within small and isolated reserves does not fully protect their species composition. Forest reserves should be surrounded by unmanaged forests and spatially connected to allow species mobility.
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Babajanyan SG, Koonin EV, Allahverdyan AE. Thermodynamic selection: mechanisms and scenarios. NEW JOURNAL OF PHYSICS 2022; 24:053006. [PMID: 36776225 PMCID: PMC9910508 DOI: 10.1088/1367-2630/ac6531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Thermodynamic selection is an indirect competition between agents feeding on the same energy resource and obeying the laws of thermodynamics. We examine scenarios of this selection, where the agent is modeled as a heat-engine coupled to two thermal baths and extracting work from the high-temperature bath. The agents can apply different work-extracting, game-theoretical strategies, e.g. the maximum power or the maximum efficiency. They can also have a fixed structure or be adaptive. Depending on whether the resource (i.e. the high-temperature bath) is infinite or finite, the fitness of the agent relates to the work-power or the total extracted work. These two selection scenarios lead to increasing or decreasing efficiencies of the work-extraction, respectively. The scenarios are illustrated via plant competition for sunlight, and the competition between different ATP production pathways. We also show that certain general concepts of game-theory and ecology-the prisoner's dilemma and the maximal power principle-emerge from the thermodynamics of competing agents. We emphasize the role of adaptation in developing efficient work-extraction mechanisms.
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Affiliation(s)
- S G Babajanyan
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
- Alikahanyan National Laboratory (Yerevan Physics Institute), 2 Alikhanyan Brothers Street, Yerevan 0036, Armenia
| | - E V Koonin
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | - A E Allahverdyan
- Alikahanyan National Laboratory (Yerevan Physics Institute), 2 Alikhanyan Brothers Street, Yerevan 0036, Armenia
- Yerevan State University, 1 A. Manoogian street, Yerevan 0025, Armenia
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Fontana S, Yeh L, Zhan SH, Liu S. A multifaceted ecological assessment reveals the invasion of the freshwater red macroalga Montagnia macrospora (Batrachospermales, Rhodophyta) in Taiwan. Ecol Evol 2022; 12:e8906. [PMID: 35571755 PMCID: PMC9077021 DOI: 10.1002/ece3.8906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 04/14/2022] [Accepted: 04/19/2022] [Indexed: 12/11/2022] Open
Abstract
Invasive freshwater macroalgae are rarely described. Montagnia macrospora is a freshwater red alga introduced from South America to East Asia via the global aquarium trade. The earliest occurrence record of this alga in Taiwan is dated 2005. To determine whether M. macrospora has become invasive in Taiwan and to understand the traits that facilitated its invasion, we took a multifaceted approach that combines examination of ecological background and population genetic analysis. Our island-wide survey showed that M. macrospora is widespread in the field across Taiwan, where the climate greatly differs from that of South America, and can self-sustain for nearly a decade. Our population genetic analysis revealed a lack of genetic diversity of M. macrospora in Taiwan, consistent with the hypothesis that the alga expanded through asexual reproduction. Moreover, during our long-term ecological assessments and field surveys, we observed that M. macrospora is an ecological generalist that can survive in a wide range of temperature, pH, illumination, and nutrient enrichment. Taken together, our data suggest that M. macrospora has successfully invaded the freshwater ecosystems of Taiwan, likely due to its ability to disperse asexually and to grow under broad environmental conditions. We hope that our study brings attention to invasive freshwater algae, which have been overlooked in conservation planning and management.
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Affiliation(s)
- Silvia Fontana
- Department of Life Science & Center for Ecology and EnvironmentTunghai UniversityTaichungTaiwan
| | - Lan‐Wei Yeh
- Department of Life Science & Center for Ecology and EnvironmentTunghai UniversityTaichungTaiwan
| | - Shing Hei Zhan
- Department of Zoology & Biodiversity Research CentreThe University of British ColumbiaVancouverBritish ColumbiaCanada
| | - Shao‐Lun Liu
- Department of Life Science & Center for Ecology and EnvironmentTunghai UniversityTaichungTaiwan
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Morrison JA, Roche B, Veatch‐Blohm M. Woody plant secondary chemicals increase in response to abundant deer and arrival of invasive plants in suburban forests. Ecol Evol 2022; 12:e8814. [PMID: 35432930 PMCID: PMC9006230 DOI: 10.1002/ece3.8814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 03/11/2022] [Accepted: 03/20/2022] [Indexed: 12/03/2022] Open
Abstract
Plants in suburban forests of eastern North America face the dual stressors of high white‐tailed deer density and invasion by nonindigenous plants. Chronic deer herbivory combined with strong competition from invasive plants could alter a plant's stress‐ and defense‐related secondary chemistry, especially for long‐lived juvenile trees in the understory, but this has not been studied. We measured foliar total antioxidants, phenolics, and flavonoids in juveniles of two native trees, Fraxinus pennsylvanica (green ash) and Fagus grandifolia (American beech), growing in six forests in the suburban landscape of central New Jersey, USA. The trees grew in experimental plots subjected for 2.5 years to factorial treatments of deer access/exclosure × addition/no addition of the nonindigenous invasive grass Microstegium vimineum (Japanese stiltgrass). As other hypothesized drivers of plant secondary chemistry, we also measured nonstiltgrass herb layer cover, light levels, and water availability. Univariate mixed model analysis of the deer and stiltgrass effects and multivariate structural equation modeling (SEM) of all variables showed that both greater stiltgrass cover and greater deer pressure induced antioxidants, phenolics, and flavonoids, with some variation between species. Deer were generally the stronger factor, and stiltgrass effects were most apparent at high stiltgrass density. SEM also revealed that soil dryness directly increased the chemicals; deer had additional positive, but indirect, effects via influence on the soil; in beech photosynthetically active radiation (PAR) positively affected flavonoids; and herb layer cover had no effect. Juvenile trees’ chemical defense/stress responses to deer and invasive plants can be protective, but also could have a physiological cost, with negative consequences for recruitment to the canopy. Ecological implications for species and their communities will depend on costs and benefits of stress/defense chemistry in the specific environmental context, particularly with respect to invasive plant competitiveness, extent of invasion, local deer density, and deer browse preferences.
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Affiliation(s)
- Janet A. Morrison
- Department of Biology The College of New Jersey Ewing New Jersey USA
| | - Bernadette Roche
- Department of Biology Loyola University Maryland Baltimore Maryland USA
| | - Maren Veatch‐Blohm
- Department of Biology Loyola University Maryland Baltimore Maryland USA
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Veselkin DV, Dubrovin DI, Rafikova OS, Lipikhina YA, Zolotareva NV, Podgaevskaya EN, Pustovalova LA, Yakovleva AV. Shading and Light Interception in Thickets of Invasive Acer negundo and Sorbaria sorbifolia. RUSSIAN JOURNAL OF BIOLOGICAL INVASIONS 2022. [DOI: 10.1134/s2075111722010155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhu D, Hui D, Huang Z, Qiao X, Tong S, Wang M, Yang Q, Yu S. Comparative impact of light and neighbor effect on the growth of introduced species
Sonneratia apetala
and native mangrove species in China: implications for restoration. Restor Ecol 2022. [DOI: 10.1111/rec.13522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dehuang Zhu
- Department of Ecology School of Life Sciences/State Key Laboratory of Biocontrol, Sun Yat‐sen University Guangzhou Guangdong 510275 China
- Shenzhen Research Institute Sun Yat‐sen University Guangzhou Guangdong 518054 China
- College of Ecology and Resources Engineering Wuyi University Nanping Fujian 354300 China
| | - Dafeng Hui
- Department of Biological Sciences Tennessee State University Nashville TN 37209 U.S.A
| | - Zijian Huang
- Department of Ecology School of Life Sciences/State Key Laboratory of Biocontrol, Sun Yat‐sen University Guangzhou Guangdong 510275 China
- Shenzhen Research Institute Sun Yat‐sen University Guangzhou Guangdong 518054 China
| | - Xueting Qiao
- Department of Ecology School of Life Sciences/State Key Laboratory of Biocontrol, Sun Yat‐sen University Guangzhou Guangdong 510275 China
- Shenzhen Research Institute Sun Yat‐sen University Guangzhou Guangdong 518054 China
| | - Sen Tong
- Department of Ecology School of Life Sciences/State Key Laboratory of Biocontrol, Sun Yat‐sen University Guangzhou Guangdong 510275 China
- Shenzhen Research Institute Sun Yat‐sen University Guangzhou Guangdong 518054 China
| | - Mengqi Wang
- Guangdong Neilingding Futian National Nature Reserve Shenzhen Guangdong 518040 China
| | - Qiong Yang
- Guangdong Neilingding Futian National Nature Reserve Shenzhen Guangdong 518040 China
| | - Shixiao Yu
- Department of Ecology School of Life Sciences/State Key Laboratory of Biocontrol, Sun Yat‐sen University Guangzhou Guangdong 510275 China
- Shenzhen Research Institute Sun Yat‐sen University Guangzhou Guangdong 518054 China
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Barchiesi S, Alonso A, Pazmiño-Hernandez M, Serrano-Sandí JM, Muñoz-Carpena R, Angelini C. Wetland hydropattern and vegetation greenness predict avian populations in Palo Verde, Costa Rica. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2022; 32:e2493. [PMID: 34773674 DOI: 10.1002/eap.2493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 07/19/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
Many wetlands around the world that occur at the base of watersheds are under threat from land-use change, hydrological alteration, nutrient pollution, and invasive species. A relevant measure of whether the ecological character of these ecosystems has changed is the species diversity of wetland-dependent waterbirds, especially those of conservation value. Here, we evaluate the potential mechanisms controlling variability over time and space in avian species diversity of the wetlands in the Palo Verde National Park, a Ramsar Site of international importance in Costa Rica. To do so, we assessed the relative importance of several key wetland condition metrics (i.e., surface water depth, wetland extent, and vegetation greenness), and temporal fluctuations in these metrics, in predicting the abundance of five waterbirds of high conservation value as well as overall waterbird diversity over a 9-yr period. Generalized additive models revealed that mean NDVI, an indicator of vegetation greenness, combined with a metric used to evaluate temporal fluctuations in the wetland extent best predicted four of the five waterbird species of high conservation value as well as overall waterbird species richness and diversity. Black-bellied Whistling-ducks, which account for over one-half of all waterbird individuals, and all waterbird species together were better predicted by including surface water depth along with wetland extent and its fluctuations. Our calibrated species distribution model confidently quantified monthly averages of the predicted total waterbird abundances in seven of the 10 sub-wetlands making up the Ramsar Site and confirmed that the biophysical diversity of this entire wetland system is important to supporting waterbird populations both as a seasonal refuge and more permanently. This work further suggests that optimizing the timing and location of ongoing efforts to reduce invasive vegetation cover may be key to avian conservation by increasing waterbird habitat.
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Affiliation(s)
- Stefano Barchiesi
- School of Natural Resources and Environment, University of Florida, Black Hall, Gainesville, Florida, 32611, USA
| | - Alice Alonso
- Earth and Life Institute, Environmental Sciences, Université catholique de Louvain, Croix du Sud 2, Louvain-la-Neuve, Walloon Brabant, 1348, Belgium
| | - Marco Pazmiño-Hernandez
- Agricultural and Biological Engineering Department, University of Florida, Frazier-Rogers Hall, Gainesville, Florida, 32611, USA
| | - Juan M Serrano-Sandí
- Palo Verde Biological Research Station, Organization for Tropical Studies, Parque Nacional Palo Verde, Bagaces, Guanacaste, 50401, Costa Rica
| | - Rafael Muñoz-Carpena
- Agricultural and Biological Engineering Department, University of Florida, Frazier-Rogers Hall, Gainesville, Florida, 32611, USA
| | - Christine Angelini
- Department of Environmental Engineering Sciences, Engineering School of Sustainable Infrastructure and Environment, University of Florida, Weil Hall, Gainesville, Florida, 32611, USA
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Lee M, Powell JR, Oberle B, Unda F, Mansfield SD, Dalrymple R, Rigg J, Cornwell WK, Zanne AE. Initial wood trait variation overwhelms endophyte community effects for explaining decay trajectories. Funct Ecol 2022. [DOI: 10.1111/1365-2435.14025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marissa Lee
- Department of Biological Sciences The George Washington University Washington DC United States
| | - Jeff R. Powell
- Hawkesbury Institute for the Environment University of Western Sydney Hawkesbury Australia
| | - Brad Oberle
- Division of Natural Sciences New College of Florida Sarasota FL United States
| | - Faride Unda
- Department of Wood Science University of British Columbia Vancouver Canada
| | - Shawn D. Mansfield
- Department of Wood Science University of British Columbia Vancouver Canada
| | - Rhiannon Dalrymple
- Evolution & Ecology Research Centre School of Biological Earth and Environmental Sciences University of New South Wales Sydney Australia
| | - Jessica Rigg
- Elizabeth Macarthur Agricultural Institute Department of Primary Industries NSW Meanagle Australia
| | - William K. Cornwell
- Evolution & Ecology Research Centre School of Biological Earth and Environmental Sciences University of New South Wales Sydney Australia
| | - Amy E. Zanne
- Department of Biological Sciences The George Washington University Washington DC United States
- Department of Biology University of Miami Miami FL United States
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Hullé M, Till M, Plantegenest M. Global Warming Could Magnify Insect-Driven Apparent Competition Between Native and Introduced Host Plants in Sub-Antarctic Islands. ENVIRONMENTAL ENTOMOLOGY 2022; 51:204-209. [PMID: 34792115 DOI: 10.1093/ee/nvab122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Indexed: 06/13/2023]
Abstract
Pristine sub-Antarctic islands terrestrial ecosystems, including many endemic species, are highly threatened by human-induced cosmopolitan plant invasion. We propose that native plant suppression could be further facilitated by the subsequent invasion by generalist pest species that could exacerbate their competitive exclusion through the process of apparent competition. By comparing the biological parameters of an invasive aphid species, Myzus ascalonicus, on one native (Acaena magellanica) and one invasive (Senecio vulgaris) plant species, we showed that survival and fecundity were higher and development time lower on the native plant species than on the invasive one. Moreover, comparing the effect of a temperature increase on the population dynamics of M. ascalonicus on the two plants, we showed that the relative profitability of the native species is further amplified by warming. Hence, while pest population doubling time is 28% higher on the invasive plant under current temperature, it would become 40% higher with an increase in temperature of 3°C. Consequently, our findings demonstrate that global warming could exacerbate competitive exclusion of native plants by invasive plants in sub-Antarctic islands by its indirect effect on the apparent competition mediated by generalist phytophagous pests.
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Affiliation(s)
| | - Milena Till
- Ecole d'Ingénieurs de Purpan, Toulouse, France
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Xu X, Zhou C, He Q, Qiu S, Zhang Y, Yang J, Li B, Nie M. Phenotypic plasticity of light use favors a plant invader in nitrogen-enriched ecosystems. Ecology 2022; 103:e3665. [PMID: 35165885 DOI: 10.1002/ecy.3665] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 11/03/2021] [Accepted: 12/09/2021] [Indexed: 11/11/2022]
Abstract
Eutrophication is believed to promote plant invasion, resulting in high growth performances of invasive plants and, hence, great potential for growth-induced intraspecific competition for light. Current hypotheses predict how eutrophication promotes plant invasion but fail to explain how great invasiveness is maintained under eutrophic conditions. In diverse native communities, cooccurring plants of varying sizes can avoid light competition by exploiting light complementarily; however, whether this mechanism applies to intraspecific competition in invasive plant populations remains unknown. Using a two-year field nitrogen (N)-enrichment experiment on one of the global invasive plants, Spartina alterniflora, we found that the plasticity of light use reduced intraspecific competition and increased biomass production in S. alterniflora. Such a plasticity effect was enhanced when S. alterniflora had no nutrient limitations. In the N-enrichment treatments, the height difference among S. alterniflora ramets increased as light intensity decreased under the canopy. Compared with ambient N, under N enrichment, shorter individuals increased their light-use efficiency and specific leaf area in response to the reduced light intensity under the canopy. However, such ecophysiological plasticity was not found for taller individuals. Our findings reveal that the light use plasticity of short individuals can be envisaged as a novel mechanism by which an invasive plant alleviates intraspecific competition and increases its invasiveness, challenging the prevailing perspective that the invasiveness of exotic plants is constrained by intraspecific competition.
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Affiliation(s)
- Xiao Xu
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, Shanghai, China
| | - Chenhao Zhou
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, Shanghai, China
| | - Qiang He
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, Shanghai, China
| | - Shiyun Qiu
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, Shanghai, China
| | - Yan Zhang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, Shanghai, China
| | - Ji Yang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, Shanghai, China
| | - Bo Li
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, Shanghai, China.,Centre for Invasion Biology, Institute of Biodiversity, Yunnan University, Kunming, Yunnan, China
| | - Ming Nie
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, Shanghai, China
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Biochar Rescues Native Trees in the Biodiversity Hotspot of Mauritius. FORESTS 2022. [DOI: 10.3390/f13020277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Many tropical invasive species have allelopathic effects that contribute to their success in native plant communities. Pyrolyzed biomass (“biochar”) can sorb toxic compounds, including allelochemicals produced by invasive plants, potentially reducing their inhibitory effects on native species. Strawberry guava (Psidium cattleianum) is among the most important allelopathic invasive species on tropical islands and recognized as the most serious threat among invasive species in the global biodiversity hotspot of Mauritius. We investigated the effects of additions of locally produced biochar on native tree species in a field experiment conducted in areas invaded by strawberry guava within Mauritius’ largest national park. Growth and survivorship of native tree species were monitored over 2.5 years in plots subjected to four treatments: non-weeded, weeded, weeded + 25 t/ha biochar, and weeded + 50 t/ha biochar. Native tree growth and survivorship were strongly suppressed by strawberry guava. Biochar treatments dramatically increased native tree performance, with more than a doubling in growth, and substantially increased native tree survivorship and species diversity, while suppressing strawberry guava regeneration, consistent with growth-promoting properties and sorption of allelochemicals. We conclude that biochars, including “sustainable biochars” produced from locally accessible biomass using low-tech pyrolysis systems, have considerable potential to counteract effects of allelopathic invaders and increase the capacity for native species regeneration in tropical island ecosystems.
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Resistance of plant communities to invasion by tall fescue: An experimental study combining species diversity, functional traits and nutrient levels. Basic Appl Ecol 2022. [DOI: 10.1016/j.baae.2021.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Khalofah A, Ghramh HA, Al-Qthanin RN, L’taief B. The impact of NPK fertilizer on growth and nutrient accumulation in juniper (Juniperus procera) trees grown on fire-damaged and intact soils. PLoS One 2022; 17:e0262685. [PMID: 35085316 PMCID: PMC8794100 DOI: 10.1371/journal.pone.0262685] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 12/30/2021] [Indexed: 11/19/2022] Open
Abstract
Wildfires significantly alter soil properties and result in vegetation shifts; therefore, rapid reforestation activities are needed in the forests affected by wildfires. The decreased nutrient in the soil is the obvious effect of wildfires; however, little is known about the reforestation of Juniper (Juniperus procera) forests with application of NPK fertilizers. Juniper forests are common in Asir and Taif regions of Saudi Arabia and vulnerable to wildfires; thus, reforestation is needed after the onset of fires. This study assessed the impact of different doses of organic NPK fertilizer (0, 5 and 10 g/L) on growth and nutrient accumulation of Juniper trees grown on fire-damaged and intact soils. Data relating to tree height, number of leaves per plant, fresh and dry biomass accumulation in shoot and root, chlorophyll contents and uptake of N, P, K, and Na were recorded. Individual and interactive effects of soil types and fertilizer doses significantly altered all measured traits with minor exceptions. Overall, higher values of the measured traits were recorded for intact soil and 10 g/L fertilize dose. The increasing fertilizer doses improved the growth and nutrient acquisition and application of 10 g/L fertilizer on intact soil recorded the highest values of growth traits. Juniper trees grown on fire-damaged soil accumulated higher amount of nitrogen than intact soil. Similarly, the trees grown on intact soil accumulated lower amount of Na and maintained comparable K/Na ratio to intact soil. It is concluded that supplying 10 g/L fertilizer could improve the establishment of Juniper trees on fire-damaged soil. Therefore, organic fertilizer can be used to improve the reforestation of wildfire-affected Juniper forests in the Asir province.
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Affiliation(s)
- Ahlam Khalofah
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
| | - Hamed A. Ghramh
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
- Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Rahmah N. Al-Qthanin
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Prince Sultan Bin-Abdul-Aziz Center for Environment and Tourism Studies and Researches, King Khalid University, Abha, Saudi Arabia
| | - Boullbaba L’taief
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Laboratory of Agronomic Science and Technology (LR16INRAT03), National Institute of Agronomic Research of Tunisia (INRAT), University of Carthage, Tunis, Tunisia
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