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Wesselmann M, Hendriks IE, Johnson M, Jordà G, Mineur F, Marbà N. Increasing spread rates of tropical non-native macrophytes in the Mediterranean Sea. GLOBAL CHANGE BIOLOGY 2024; 30:e17249. [PMID: 38572713 DOI: 10.1111/gcb.17249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 02/09/2024] [Accepted: 02/25/2024] [Indexed: 04/05/2024]
Abstract
Warming as well as species introductions have increased over the past centuries, however a link between cause and effect of these two phenomena is still unclear. Here we use distribution records (1813-2023) to reconstruct the invasion histories of marine non-native macrophytes, macroalgae and seagrasses, in the Mediterranean Sea. We defined expansion as the maximum linear rate of spread (km year-1) and the accumulation of occupied grid cells (50 km2) over time and analyzed the relation between expansion rates and the species' thermal conditions at its native distribution range. Our database revealed a marked increase in the introductions and spread rates of non-native macrophytes in the Mediterranean Sea since the 1960s, notably intensifying after the 1990s. During the beginning of this century species velocity of invasion has increased to 26 ± 9 km2 year-1, with an acceleration in the velocity of invasion of tropical/subtropical species, exceeding those of temperate and cosmopolitan macrophytes. The highest spread rates since then were observed in macrophytes coming from native regions with minimum SSTs two to three degrees warmer than in the Mediterranean Sea. In addition, most non-native macrophytes in the Mediterranean (>80%) do not exceed the maximum temperature of their range of origin, whereas approximately half of the species are exposed to lower minimum SST in the Mediterranean than in their native range. This indicates that tropical/subtropical macrophytes might be able to expand as they are not limited by the colder Mediterranean SST due to the plasticity of their lower thermal limit. These results suggest that future warming will increase the thermal habitat available for thermophilic species in the Mediterranean Sea and continue to favor their expansion.
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Affiliation(s)
- Marlene Wesselmann
- Global Change Research Group, IMEDEA (CSIC-UIB), Institut Mediterrani d'Estudis Avançats, Esporles, Spain
| | - Iris E Hendriks
- Global Change Research Group, IMEDEA (CSIC-UIB), Institut Mediterrani d'Estudis Avançats, Esporles, Spain
| | - Mark Johnson
- School of Natural Sciences and Ryan Institute, University of Galway, Ireland
| | - Gabriel Jordà
- Instituto Espanol de Oceanografía, Centre Oceanografic de Balears, Palma, Spain
| | - Frederic Mineur
- School of Natural Sciences and Ryan Institute, University of Galway, Ireland
| | - Núria Marbà
- Global Change Research Group, IMEDEA (CSIC-UIB), Institut Mediterrani d'Estudis Avançats, Esporles, Spain
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2
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Parvizi E, Vaughan AL, Dhami MK, McGaughran A. Genomic signals of local adaptation across climatically heterogenous habitats in an invasive tropical fruit fly (Bactrocera tryoni). Heredity (Edinb) 2024; 132:18-29. [PMID: 37903919 PMCID: PMC10798995 DOI: 10.1038/s41437-023-00657-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: 02/14/2023] [Revised: 09/21/2023] [Accepted: 10/17/2023] [Indexed: 11/01/2023] Open
Abstract
Local adaptation plays a key role in the successful establishment of pest populations in new environments by enabling them to tolerate novel biotic and abiotic conditions experienced outside their native range. However, the genomic underpinnings of such adaptive responses remain unclear, especially for agriculturally important pests. We investigated population genomic signatures in the tropical/subtropical Queensland fruit fly, Bactrocera tryoni, which has an expanded range encompassing temperate and arid zones in Australia, and tropical zones in the Pacific Islands. Using reduced representation sequencing data from 28 populations, we detected allele frequency shifts associated with the native/invasive status of populations and identified environmental factors that have likely driven population differentiation. We also determined that precipitation, temperature, and geographic variables explain allelic shifts across the distribution range of B. tryoni. We found spatial heterogeneity in signatures of local adaptation across various climatic conditions in invaded areas. Specifically, disjunct invasive populations in the tropical Pacific Islands and arid zones of Australia were characterised by multiple significantly differentiated single nucleotide polymorphisms (SNPs), some of which were associated with genes with well-understood function in environmental stress (e.g., heat and desiccation) response. However, invasive populations in southeast Australian temperate zones showed higher gene flow with the native range and lacked a strong local adaptive signal. These results suggest that population connectivity with the native range has differentially affected local adaptive patterns in different invasive populations. Overall, our findings provide insights into the evolutionary underpinnings of invasion success of an important horticultural pest in climatically distinct environments.
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Affiliation(s)
- Elahe Parvizi
- Te Aka Mātuatua/School of Science, University of Waikato, Hamilton, New Zealand
| | - Amy L Vaughan
- Biocontrol and Molecular Ecology, Manaaki Whenua Landcare Research, Lincoln, New Zealand
| | - Manpreet K Dhami
- Biocontrol and Molecular Ecology, Manaaki Whenua Landcare Research, Lincoln, New Zealand
| | - Angela McGaughran
- Te Aka Mātuatua/School of Science, University of Waikato, Hamilton, New Zealand.
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3
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Krueger-Hadfield SA, Oetterer AP, Lees LE, Hoffman JM, Sotka EE, Murren CJ. Phenology and thallus size in a non-native population of Gracilaria vermiculophylla. JOURNAL OF PHYCOLOGY 2023; 59:926-938. [PMID: 37729054 DOI: 10.1111/jpy.13371] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 06/13/2023] [Accepted: 07/03/2023] [Indexed: 09/22/2023]
Abstract
Phenology, or seasonal variation in life cycle events, is poorly described for many macroalgal species. We describe the phenology of a non-native population of Gracilaria vermiculophylla whose thalli are free-living or anchored by decorating polychaetes to tube caps. At a site in South Carolina, USA, we sampled 100 thalli approximately every month from January 2014 to January 2015. We assessed the reproductive state and measured thallus size based on wet weight, thallus length, and thallus surface area from herbarium mounts. Because life cycle stage cannot be assigned using morphology, we implemented a PCR assay to determine the life cycle stage-tetrasporophyte, female gametophyte, or male gametophyte-of each thallus. Tetrasporophytes dominated throughout the year, making up 81%-100% of thalli sampled per month. Reproductive tetrasporophytes varied between 0% and 65% of monthly samples and were most common in warm summer months (July through September) when thalli also tended to be larger. The vast majority of the reproductive thalli were worm-anchored and not fixed to hard substratum via a holdfast. Thus, free-living thalli can be reproductive and potentially seed new non-native populations. Given G. vermiculophylla reproduction seems tied closely to temperature, our work suggests phenology may change with climate-related changes in seawater temperatures. We also highlight the importance of understanding the natural history of macroalgae to better understand the consequence of range expansions on population dynamics.
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Affiliation(s)
| | - Alexis P Oetterer
- Department of Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Lauren E Lees
- Department of Biology, College of Charleston, Charleston, South Carolina, USA
| | - Jessica M Hoffman
- Department of Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Erik E Sotka
- Department of Biology, College of Charleston, Charleston, South Carolina, USA
| | - Courtney J Murren
- Department of Biology, College of Charleston, Charleston, South Carolina, USA
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4
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Xiang JX, Saha M, Zhong KL, Zhang QS, Zhang D, Jueterbock A, Krueger-Hadfield SA, Wang GG, Weinberger F, Hu ZM. Genome-scale signatures of adaptive gene expression changes in an invasive seaweed Gracilaria vermiculophylla. Mol Ecol 2023; 32:613-627. [PMID: 36355347 DOI: 10.1111/mec.16776] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/02/2022] [Accepted: 11/08/2022] [Indexed: 11/12/2022]
Abstract
Invasive species can successfully and rapidly colonize new niches and expand ranges via founder effects and enhanced tolerance towards environmental stresses. However, the underpinning molecular mechanisms (i.e., gene expression changes) facilitating rapid adaptation to harsh environments are still poorly understood. The red seaweed Gracilaria vermiculophylla, which is native to the northwest Pacific but invaded North American and European coastal habitats over the last 100 years, provides an excellent model to examine whether enhanced tolerance at the level of gene expression contributed to its invasion success. We collected G. vermiculophylla from its native range in Japan and from two non-native regions along the Delmarva Peninsula (Eastern United States) and in Germany. Thalli were reared in a common garden for 4 months at which time we performed comparative transcriptome (mRNA) and microRNA (miRNA) sequencing. MRNA-expression profiling identified 59 genes that were differently expressed between native and non-native thalli. Of these genes, most were involved in metabolic pathways, including photosynthesis, abiotic stress, and biosynthesis of products and hormones in all four non-native sites. MiRNA-based target-gene correlation analysis in native/non-native pairs revealed that some target genes are positively or negatively regulated via epigenetic mechanisms. Importantly, these genes are mostly associated with metabolism and defence capability (e.g., metal transporter Nramp5, senescence-associated protein, cell wall-associated hydrolase, ycf68 protein and cytochrome P450-like TBP). Thus, our gene expression results indicate that resource reallocation to metabolic processes is most likely a predominant mechanism contributing to the range-wide persistence and adaptation of G. vermiculophylla in the invaded range. This study, therefore, provides molecular insight into the speed and nature of invasion-mediated rapid adaption.
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Affiliation(s)
| | - Mahasweta Saha
- Marine Ecology Division, GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Kiel, Germany
- Marine Ecology and Biodiversity, Plymouth Marine Laboratory, Plymouth, UK
| | - Kai-Le Zhong
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | | | - Di Zhang
- Ocean School, YanTai University, Yantai, China
| | - Alexander Jueterbock
- Algal and Microbial Biotechnology Division, Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | | | - Gao-Ge Wang
- Institute of Evolution and Marine Biodiversity, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Florian Weinberger
- Marine Ecology Division, GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Kiel, Germany
| | - Zi-Min Hu
- Ocean School, YanTai University, Yantai, China
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Xian X, Zhao H, Wang R, Zhang H, Chen B, Liu W, Wan F. Evidence of the niche expansion of crofton weed following invasion in China. Ecol Evol 2023; 13:e9708. [PMID: 36620415 PMCID: PMC9817199 DOI: 10.1002/ece3.9708] [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: 05/26/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 01/09/2023] Open
Abstract
Niche dynamics of invasive alien plants (IAPs) play pivotal roles in biological invasion. Ageratina adenophora-one of the most aggressive IAPs in China and some parts of the world-poses severe ecological and socioeconomic threats. However, the spatiotemporal niche dynamics of A. adenophora in China remain unknown, which we aimed to elucidate in the present study. China, Mexico; using a unifying framework, we reconstructed the climate niche dynamics of A. adenophora and applied the optimal MaxEnt model to predict its potential geographical distribution in China. Furthermore, we compared the heterogeneity of A. adenophora niche between Mexico (native) and China (invasive). We observed a low niche overlap between Mexico (native) and China (invasive). Specifically, the niche of A. adenophora in China has distinctly expanded compared to that in Mexico, enhancing the invasion risk of this IAP in the former country. In fact, the climatic niche of A. adenophora in Mexico is a subset of that in China. The potential geographical distribution of A. adenophora is concentrated in the tropical and subtropical zones of Southwest China, and its geographical distribution pattern in China is shaped by the combination of precipitation and temperature variables. The niche dynamics of A. adenophora follow the hypothesis of niche shift and conservatism. The present work provides a unifying framework for studies on the niche dynamics of other IAPs worldwide.
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Affiliation(s)
- Xiaoqing Xian
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural ScienceBeijingChina
| | - Haoxiang Zhao
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural ScienceBeijingChina
| | - Rui Wang
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural ScienceBeijingChina
| | - Hongbin Zhang
- Rural Energy and Environment AgencyMinistry of Agriculture and Rural AffairsBeijingChina
| | - Baoxiong Chen
- Rural Energy and Environment AgencyMinistry of Agriculture and Rural AffairsBeijingChina
| | - Wanxue Liu
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural ScienceBeijingChina
| | - Fanghao Wan
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant Protection, Chinese Academy of Agricultural ScienceBeijingChina
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6
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Bonthond G, Neu A, Bayer T, Krueger‐Hadfield SA, Künzel S, Weinberger F. Non-native hosts of an invasive seaweed holobiont have more stable microbial communities compared to native hosts in response to thermal stress. Ecol Evol 2023; 13:e9753. [PMID: 36713485 PMCID: PMC9873590 DOI: 10.1002/ece3.9753] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/22/2022] [Accepted: 01/04/2023] [Indexed: 01/26/2023] Open
Abstract
Seaweeds are colonized by a microbial community, which can be directly linked to their performance. This community is shaped by an interplay of stochastic and deterministic processes, including mechanisms which the holobiont host deploys to manipulate its associated microbiota. The Anna Karenina principle predicts that when a holobiont is exposed to suboptimal or stressful conditions, these host mechanisms may be compromised. This leads to a relative increase of stochastic processes that may potentially result in the succession of a microbial community harmful to the host. Based on this principle, we used the variability in microbial communities (i.e., beta diversity) as a proxy for stability within the invasive holobiont Gracilaria vermiculophylla during a simulated invasion in a common garden experiment. Independent of host range, host performance declined at elevated temperature (22°C) and disease incidence and beta diversity increased. Under thermally stressful conditions, beta diversity increased more in epibiota from native populations, suggesting that epibiota from non-native holobionts are thermally more stable. This pattern reflects an increase in deterministic processes acting on epibiota associated with non-native hosts, which in the setting of a common garden can be assumed to originate from the host itself. Therefore, these experimental data suggest that the invasion process may have selected for hosts better able to maintain stable microbiota during stress. Future studies are needed to identify the underlying host mechanisms.
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Affiliation(s)
- Guido Bonthond
- Institute for Chemistry and Biology of the Marine environment (ICBM)Carl‐von‐Ossietzky University OldenburgWilhelmshavenGermany
- GEOMAR Helmholtz Centre for Ocean Research KielKielGermany
| | | | - Till Bayer
- GEOMAR Helmholtz Centre for Ocean Research KielKielGermany
| | | | - Sven Künzel
- Max Planck Institute for Evolutionary BiologyPlönGermany
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7
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Boardman L, Lockwood JL, Angilletta MJ, Krause JS, Lau JA, Loik ME, Simberloff D, Thawley CJ, Meyerson LA. The Future of Invasion Science Needs Physiology. Bioscience 2022. [DOI: 10.1093/biosci/biac080] [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
Abstract
Incorporating physiology into models of population dynamics will improve our understanding of how and why invasions succeed and cause ecological impacts, whereas others fail or remain innocuous. Targeting both organismal physiologists and invasion scientists, we detail how physiological processes affect every invasion stage, for both plants and animals, and how physiological data can be better used for studying the spatial dynamics and ecological effects of invasive species. We suggest six steps to quantify the physiological functions related to demography of nonnative species: justifying physiological traits of interest, determining ecologically appropriate time frames, identifying relevant abiotic variables, designing experimental treatments that capture covariation between abiotic variables, measuring physiological responses to these abiotic variables, and fitting statistical models to the data. We also provide brief guidance on approaches to modeling invasions. Finally, we emphasize the benefits of integrating research between communities of physiologists and invasion scientists.
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Affiliation(s)
- Leigh Boardman
- Department of Biological Sciences and with the Center for Biodiversity Research, University of Memphis , Memphis, Tennessee, United States
| | - Julie L Lockwood
- Department of Ecology, Evolution, and Natural Resources at Rutgers University , New Brunswick, New Jersey, United States
| | - Michael J Angilletta
- School of Life Sciences and with the Center for Learning Innovation in Science, Arizona State University , Tempe, Arizona, United States
| | - Jesse S Krause
- Department of Biology, University of Nevada , Reno, Nevada, United States
| | - Jennifer A Lau
- Department of Biology, Indiana University , Bloomington, Indian, United States
| | - Michael E Loik
- Environmental Studies Department, University of California , Santa Cruz, Santa Cruz, California, United States
| | - Daniel Simberloff
- Department of Ecology and Evolutionary Biology, University of Tennessee , Knoxville, Tennessee, United States
| | - Christopher J Thawley
- Department of Biological Sciences, University of Rhode Island , Kingston, Rhode Island, United States
| | - Laura A Meyerson
- Department of Natural Resources Science, University of Rhode Island , Kingston, Rhode Island, United States
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8
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Mott AW, Krueger-Hadfield SA, Blakeslee AMH, Fowler AE. Native tube-building polychaete prefers to anchor non-native alga over other macrophytes. Oecologia 2022; 198:967-980. [PMID: 35438318 DOI: 10.1007/s00442-022-05164-1] [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: 08/31/2020] [Accepted: 04/03/2022] [Indexed: 11/29/2022]
Abstract
Novel facultative mutualisms that develop between native and non-native ecosystem engineers can lead to the retention of the non-native partner. In some cases, behavior plays an additional, but less understood, role in the development and persistence of mutualisms. In soft-sediment marine habitats along the western Atlantic, the native decorator worm Diopatra cuprea anchors the non-native red alga Gracilaria vermiculophylla to its tube cap in a mutualism. To understand whether the worm's usage of G. vermiculophylla could represent a preference, we first surveyed the species composition of macrophytes affixed to worm tube caps at three sites in coastal Virginia, USA using transect and quadrat sampling. These unmanipulated field surveys supported previous work revealing variable, but often high frequencies (31-98%) of D. cuprea decoration with G. vermiculophylla. We next used field manipulations and controlled laboratory experiments to test the consistency of individual D. cuprea decoration with G. vermiculophylla versus three common macrophytes (Ulva sp., Agardhiella sp., and Spartina alterniflora) found in our field surveys. Twenty-four hours after removing the worm's tube cap in the field, D. cuprea decoration was dominated by both G. vermiculophylla (39.6%) and S. alterniflora (25.9%). When provided a choice of macrophytes in the laboratory, individual D. cuprea consistently decorated with G. vermiculophylla (58.7%) over the other macrophytes, showing a preference for the non-native macrophyte. Our study suggests that preference can drive strong and steadfast interactions between native and non-native organisms, facilitating the latter's persistence and spread, change available habitat, and alter community interactions.
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Affiliation(s)
- Alexander W Mott
- Department of Environmental Science and Policy, George Mason University, Fairfax, VA, USA.
| | | | | | - Amy E Fowler
- Department of Environmental Science and Policy, George Mason University, Fairfax, VA, USA
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9
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Individuals from non-native populations are stronger and bigger than individuals from native populations of a widespread seaweed. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02766-x] [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]
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10
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Wang G, Ren Y, Wang S, Hou M, Weinberger F. Shifting chemical defence or novel weapons? A review of defence traits in Agarophyton vermiculophyllum and other invasive seaweeds. MARINE LIFE SCIENCE & TECHNOLOGY 2022; 4:138-149. [PMID: 37073358 PMCID: PMC10077278 DOI: 10.1007/s42995-021-00109-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 04/27/2021] [Indexed: 05/03/2023]
Abstract
Seaweed bioinvasions increasingly affect coastal environments around the world, which increases the need for predictive models and mitigation strategies. The biotic interactions between seaweed invaders and invaded communities are often considered a key determinant of invasion success and failure and we here revise the current evidence that the capacity of seaweed invaders to deter enemies in newly reached environments correlates with their invasion success. Particularly efficient chemical defences have been described for several of the more problematic seaweed invaders during the last decades. However, confirmed cases in which seaweed invaders confronted un-adapted enemies in newly gained environments with deterrents that were absent from these environments prior to the invasion (so-called "novel weapons") are scarce, although an increasing number of invasive and non-invasive seaweeds are screened for defence compounds. More evidence exists that seaweeds may adapt defence intensities to changing pressure by biological enemies in newly invaded habitats. However, most of this evidence of shifting defence was gathered with only one particular model seaweed, the Asia-endemic red alga Agarophyton vermiculophyllum, which is particularly accessible for direct comparisons of native and non-native populations in common garden experiments. A. vermiculophyllum interacts with consumers, epibionts and bacterial pathogens and in most of these interactions, non-native populations have rather gained than lost defensive capacity relative to native conspecifics. The increases in the few examined cases were due to an increased production of broad-spectrum deterrents and the relative scarcity of specialized deterrents perhaps reflects the circumstance that seaweed consumers and epibionts are overwhelmingly generalists.
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Affiliation(s)
- Gaoge Wang
- Institute of Evolution and Marine Biodiversity, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Yifei Ren
- Institute of Evolution and Marine Biodiversity, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Shasha Wang
- Marine Ecology Division, GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Düsternbrooker Weg 20, 24105 Kiel, Germany
| | - Minglei Hou
- Institute of Evolution and Marine Biodiversity, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Florian Weinberger
- Marine Ecology Division, GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Düsternbrooker Weg 20, 24105 Kiel, Germany
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11
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Pack KE, Mieszkowska N, Rius M. Rapid niche shifts as drivers for the spread of a non‐indigenous species under novel environmental conditions. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Kathryn E. Pack
- School of Ocean and Earth Science National Oceanography Centre Southampton University of Southampton Southampton UK
- Marine Biological Association Plymouth UK
| | - Nova Mieszkowska
- Marine Biological Association Plymouth UK
- School of Environmental Sciences University of Liverpool Liverpool UK
| | - Marc Rius
- Centre for Ecological Genomics and Wildlife Conservation Department of Zoology University of Johannesburg Auckland Park South Africa
- Centre for Advanced Studies of Blanes (CEAB, CSIC) Accés a la Cala Sant FrancescBlanes Spain
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12
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Montagnani C, Casazza G, Gentili R, Caronni S, Citterio S. Kudzu in Europe: niche conservatism for a highly invasive plant. Biol Invasions 2022. [DOI: 10.1007/s10530-021-02706-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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13
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Abstract
Predictions of future biological invasions often rely on the assumption that introduced species establish only under climatic conditions similar to those in their native range. To date, 135 studies have tested this assumption of 'niche conservatism', yielding contradictory results. Here we revisit this literature, consider the evidence for niche shifts, critically assess the methods used, and discuss the authors' interpretations of niche shifts. We find that the true frequency of niche shifts remains unknown because of diverging interpretations of similar metrics, conceptual issues biasing conclusions towards niche conservatism, and the use of climatic data that may not be biologically meaningful. We argue that these issues could be largely addressed by focussing on trends or relative degrees of niche change instead of dichotomous classifications (shift versus no shift), consistently and transparently including non-analogous climates, and conducting experimental studies on mismatches between macroclimates and microclimates experienced by the study organism. Furthermore, an observed niche shift may result either from species filling a greater part of their fundamental niche during the invasion (a 'realised niche shift') or from rapid evolution of traits adapting species to novel climates in the introduced range (a 'fundamental niche shift'). Currently, there is no conclusive evidence distinguishing between these potential mechanisms of niche shifts. We outline how these questions may be addressed by combining computational analyses and experimental evidence.
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Affiliation(s)
- Olivia K Bates
- Department of Ecology and Evolution, Biophore, UNIL-Sorge, University of Lausanne, Lausanne 1015, Switzerland.
| | - Cleo Bertelsmeier
- Department of Ecology and Evolution, Biophore, UNIL-Sorge, University of Lausanne, Lausanne 1015, Switzerland.
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14
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Krueger-Hadfield SA, Byers JE, Bonthond G, Terada R, Weinberger F, Sotka EE. Intraspecific diversity and genetic structure in the widespread macroalga Agarophyton vermiculophyllum. JOURNAL OF PHYCOLOGY 2021; 57:1403-1410. [PMID: 34218439 DOI: 10.1111/jpy.13195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 06/15/2021] [Accepted: 06/27/2021] [Indexed: 06/13/2023]
Abstract
Single-gene markers, such as the mitochondrial cox1, microsatellites, and single-nucleotide polymorphisms are powerful methods to describe diversity within and among taxonomic groups and characterize phylogeographic patterns. Large repositories of publicly-available, molecular data can be combined to generate and evaluate evolutionary hypotheses for many species, including algae. In the case of biological invasions, the combination of different molecular markers has enabled the description of the geographic distribution of invasive lineages. Here, we review the phylogeography of the widespread invasive red macroalga Agarophyton vermiculophyllum (synonym Gracilaria vermiculophylla). The cox1 barcoding provided the first description of the invasion history and hinted at a strong genetic bottleneck during the invasion. Yet, more recent microsatellite and SNP genotyping has not found evidence for bottlenecks and instead suggested that genetically diverse inocula arose from a highly diverse source population, multiple invasions, or some mix of these processes. The bottleneck evident from cox1 barcoding likely reflects the dominance of one mitochondrial lineage, and one haplotype in particular, in the northern source populations in Japan. Recent cox1 sequencing of A. vermiculophyllum has illuminated the complexity of phylogeographic structure in its native range of the northwest Pacific Ocean. For example, the western coast of Honshu in the Sea of Japan displays spatial patterns of haplotypic diversity with multiple lineages found together at the same geographic site. By consolidating the genetic data of this species, we clarify the phylogenetic relationships of a well-studied macroalga introduced to virtually every temperate estuary of the Northern Hemisphere.
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Affiliation(s)
- Stacy A Krueger-Hadfield
- Department of Biology, University of Alabama at Birmingham, 1300 University Blvd, Birmingham, Alabama, 35294, USA
| | - James E Byers
- Odum School of Ecology, University of Georgia, 140 E. Green St., Athens, Georgia, 30602, USA
| | - Guido Bonthond
- GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Düsternbrooker Weg 20, Kiel, 24105, Germany
- Institute for Chemistry and Biology of the Marine environment (ICBM), Carl-von-Ossietzky University, Oldenburg, Schleusenstrasse 1, Wilhelmshaven, 26382, Germany
| | - Ryuta Terada
- United Graduate School of Agricultural Sciences, Kagoshima University, Korimoto 1-21-24, Kagoshima City, 890-0065, Japan
| | - Florian Weinberger
- GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Düsternbrooker Weg 20, Kiel, 24105, Germany
| | - Erik E Sotka
- Department of Biology and Grice Marine Lab, College of Charleston, 205 Fort Johnson Road, Charleston, South Carolina, 29412, USA
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15
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Neinavaie F, Ibrahim-Hashim A, Kramer AM, Brown JS, Richards CL. The Genomic Processes of Biological Invasions: From Invasive Species to Cancer Metastases and Back Again. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.681100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The concept of invasion is useful across a broad range of contexts, spanning from the fine scale landscape of cancer tumors up to the broader landscape of ecosystems. Invasion biology provides extraordinary opportunities for studying the mechanistic basis of contemporary evolution at the molecular level. Although the field of invasion genetics was established in ecology and evolution more than 50 years ago, there is still a limited understanding of how genomic level processes translate into invasive phenotypes across different taxa in response to complex environmental conditions. This is largely because the study of most invasive species is limited by information about complex genome level processes. We lack good reference genomes for most species. Rigorous studies to examine genomic processes are generally too costly. On the contrary, cancer studies are fortified with extensive resources for studying genome level dynamics and the interactions among genetic and non-genetic mechanisms. Extensive analysis of primary tumors and metastatic samples have revealed the importance of several genomic mechanisms including higher mutation rates, specific types of mutations, aneuploidy or whole genome doubling and non-genetic effects. Metastatic sites can be directly compared to primary tumor cell counterparts. At the same time, clonal dynamics shape the genomics and evolution of metastatic cancers. Clonal diversity varies by cancer type, and the tumors’ donor and recipient tissues. Still, the cancer research community has been unable to identify any common events that provide a universal predictor of “metastatic potential” which parallels findings in evolutionary ecology. Instead, invasion in cancer studies depends strongly on context, including order of events and clonal composition. The detailed studies of the behavior of a variety of human cancers promises to inform our understanding of genome level dynamics in the diversity of invasive species and provide novel insights for management.
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16
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Genomics-informed models reveal extensive stretches of coastline under threat by an ecologically dominant invasive species. Proc Natl Acad Sci U S A 2021; 118:2022169118. [PMID: 34083434 DOI: 10.1073/pnas.2022169118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Explaining why some species are widespread, while others are not, is fundamental to biogeography, ecology, and evolutionary biology. A unique way to study evolutionary and ecological mechanisms that either limit species' spread or facilitate range expansions is to conduct research on species that have restricted distributions. Nonindigenous species, particularly those that are highly invasive but have not yet spread beyond the introduced site, represent ideal systems to study range size changes. Here, we used species distribution modeling and genomic data to study the restricted range of a highly invasive Australian marine species, the ascidian Pyura praeputialis This species is an aggressive space occupier in its introduced range (Chile), where it has fundamentally altered the coastal community. We found high genomic diversity in Chile, indicating high adaptive potential. In addition, genomic data clearly showed that a single region from Australia was the only donor of genotypes to the introduced range. We identified over 3,500 km of suitable habitat adjacent to its current introduced range that has so far not been occupied, and importantly species distribution models were only accurate when genomic data were considered. Our results suggest that a slight change in currents, or a change in shipping routes, may lead to an expansion of the species' introduced range that will encompass a vast portion of the South American coast. Our study shows how the use of population genomics and species distribution modeling in combination can unravel mechanisms shaping range sizes and forecast future range shifts of invasive species.
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17
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Flanagan BA, Krueger-Hadfield SA, Murren CJ, Nice CC, Strand AE, Sotka EE. Founder effects shape linkage disequilibrium and genomic diversity of a partially clonal invader. Mol Ecol 2021; 30:1962-1978. [PMID: 33604965 DOI: 10.1111/mec.15854] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/18/2021] [Accepted: 02/01/2021] [Indexed: 12/20/2022]
Abstract
The genomic variation of an invasive species may be affected by complex demographic histories and evolutionary changes during the invasion. Here, we describe the relative influence of bottlenecks, clonality, and population expansion in determining genomic variability of the widespread red macroalga Agarophyton vermiculophyllum. Its introduction from mainland Japan to the estuaries of North America and Europe coincided with shifts from predominantly sexual to partially clonal reproduction and rapid adaptive evolution. A survey of 62,285 SNPs for 351 individuals from 35 populations, aligned to 24 chromosome-length scaffolds indicate that linkage disequilibrium (LD), observed heterozygosity (Ho ), Tajima's D, and nucleotide diversity (Pi) were greater among non-native than native populations. Evolutionary simulations indicate LD and Tajima's D were consistent with a severe population bottleneck. Also, the increased rate of clonal reproduction in the non-native range could not have produced the observed patterns by itself but may have magnified the bottleneck effect on LD. Elevated marker diversity in the genetic source populations could have contributed to the increased Ho and Pi observed in the non-native range. We refined the previous invasion source region to a ~50 km section of northeastern Honshu Island. Outlier detection methods failed to reveal any consistently differentiated loci shared among invaded regions, probably because of the complex A. vermiculophyllum demographic history. Our results reinforce the importance of demographic history, specifically founder effects, in driving genomic variation of invasive populations, even when localized adaptive evolution and reproductive system shifts are observed.
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Affiliation(s)
- Ben A Flanagan
- Department of Biology, College of Charleston, Charleston, SC, USA.,Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA
| | - Stacy A Krueger-Hadfield
- Department of Biology, College of Charleston, Charleston, SC, USA.,Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - Chris C Nice
- Department of Biology, Population and Conservation Biology Program, Texas State University, San Marcos, TX, USA
| | - Allan E Strand
- Department of Biology, College of Charleston, Charleston, SC, USA
| | - Erik E Sotka
- Department of Biology, College of Charleston, Charleston, SC, USA
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18
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Krueger-Hadfield SA, Flanagan BA, Godfroy O, Hill-Spanik KM, Nice CC, Murren CJ, Strand AE, Sotka EE. Using RAD-seq to develop sex-linked markers in a haplodiplontic alga. JOURNAL OF PHYCOLOGY 2021; 57:279-294. [PMID: 33098662 DOI: 10.1111/jpy.13088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 10/05/2020] [Indexed: 06/11/2023]
Abstract
For many taxa, including isomorphic haplodiplontic macroalgae, determining sex and ploidy is challenging, thereby limiting the scope of some population demographic and genetic studies. Here, we used double-digest restriction site-associated DNA sequencing (ddRAD-seq) to identify sex-linked molecular markers in the widespread red alga Agarophyton vermiculophyllum. In the ddRAD-seq library, we included 10 female gametophytes, 10 male gametophytes, and 16 tetrasporophytes from one native and one non-native site (N = 40 gametophytes and N = 32 tetrasporophytes total). We identified seven putatively female-linked and 19 putatively male-linked sequences. Four female- and eight male-linked markers amplified in all three life cycle stages. Using one female- and one male-linked marker that were sex-specific, we developed a duplex PCR and tested the efficacy of this assay on a subset of thalli sampled at two sites in the non-native range. We confirmed ploidy based on the visual observation of reproductive structures and previous microsatellite genotyping at 10 polymorphic loci. For 32 vegetative thalli, we were able to assign sex and confirm ploidy in these previously genotyped thalli. These markers will be integral to ongoing studies of A. vermiculophyllum invasion. We discuss the utility of RAD-seq over other approaches previously used, such as RAPDs (random amplified polymorphic DNA), for future work designing sex-linked markers in other haplodiplontic macroalgae for which genomes are lacking.
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Affiliation(s)
- Stacy A Krueger-Hadfield
- Department of Biology, University of Alabama at Birmingham, 1300 University Blvd, Birmingham, Alabama, 35294, USA
| | - Ben A Flanagan
- Department of Biological Sciences, University of Southern California, Los Angeles, California, 90089, USA
| | - Olivier Godfroy
- Sorbonne Université, CNRS, Integrative Biology of Marine Models (LBI2M), Station Biologique de Roscoff (SBR), 29680, Roscoff, France
| | - Kristina M Hill-Spanik
- Department of Biology and Grice Marine Lab, College of Charleston, 205 Fort Johnson Road, Charleston, South Carolina, 29412, USA
| | - Chris C Nice
- Department of Biology, Population and Conservation Biology Program, Texas State University, San Marcos, Texas, 78666, USA
| | - Courtney J Murren
- Department of Biology, College of Charleston, 66 George Street, Charleston, South Carolina, 29424, USA
| | - Allan E Strand
- Department of Biology and Grice Marine Lab, College of Charleston, 205 Fort Johnson Road, Charleston, South Carolina, 29412, USA
| | - Erik E Sotka
- Department of Biology and Grice Marine Lab, College of Charleston, 205 Fort Johnson Road, Charleston, South Carolina, 29412, USA
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19
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Bujan J, Charavel E, Bates OK, Gippet JMW, Darras H, Lebas C, Bertelsmeier C. Increased acclimation ability accompanies a thermal niche shift of a recent invasion. J Anim Ecol 2020; 90:483-491. [PMID: 33131068 DOI: 10.1111/1365-2656.13381] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 10/21/2020] [Indexed: 11/30/2022]
Abstract
Globalization is removing dispersal barriers for the establishment of invasive species and enabling their spread to novel climates. New thermal environments in the invaded range will be particularly challenging for ectotherms, as their metabolism directly depends on environmental temperature. However, we know little about the role climatic niche shifts play in the invasion process, and the underlining physiological mechanisms. We tested if a thermal niche shift accompanies an invasion, and if native and introduced populations differ in their ability to acclimate thermal limits. We used an alien ant species-Tapinoma magnum-which recently started to spread across Europe. Using occurrence data and accompanying climatic variables, we measured the amount of overlap between thermal niches in the native and invaded range. We then experimentally tested the acclimation ability in native and introduced populations by incubating T. magnum at 18, 25 and 30°C. We measured upper and lower critical thermal limits after 7 and 21 days. We found that T. magnum occupies a distinct thermal niche in its introduced range, which is on average 3.5°C colder than its native range. Critical thermal minimum did not differ between populations from the two ranges when colonies were maintained at 25 or 30°C, but did differ after colony acclimation at a lower temperature. We found twofold greater acclimation ability of introduced populations to lower temperatures, after prolonged incubation at 18°C. Increased acclimation ability of lower thermal limits could explain the expansion of the realized thermal niche in the invaded range, and likely contributed to the spread of this species to cooler climates. Such thermal plasticity could be an important, yet so far understudied, factor underlying the expansion of invasive insects into novel climates.
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Affiliation(s)
- Jelena Bujan
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
| | - Ellouène Charavel
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
| | - Olivia K Bates
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
| | - Jérôme M W Gippet
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
| | - Hugo Darras
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
| | - Claude Lebas
- Antarea (www.antarea.fr), Association pour l'étude et la cartographie des fourmis de France métropolitaine, Canohès, France
| | - Cleo Bertelsmeier
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
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20
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Sillero N, Huey RB, Gilchrist G, Rissler L, Pascual M. Distribution modelling of an introduced species: do adaptive genetic markers affect potential range? Proc Biol Sci 2020; 287:20201791. [PMID: 32933443 DOI: 10.1098/rspb.2020.1791] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Biological invasions have increased in the last few decades mostly due to anthropogenic causes such as globalization of trade. Because invaders sometimes cause large economic losses and ecological disturbances, estimating their origin and potential geographical ranges is useful. Drosophila subobscura is native to the Old World but was introduced in the New World in the late 1970s and spread widely. We incorporate information on adaptive genetic markers into ecological niche modelling and then estimate the most probable geographical source of colonizers; evaluate whether the genetic bottleneck experienced by founders affects their potential distribution; and finally test whether this species has spread to all its potential suitable habitats worldwide. We find the environmental space occupied by this species in its native and introduced distributions are notably the same, although the introduced niche has shifted slightly towards higher temperature and lower precipitation. The genetic bottleneck of founding individuals was a key factor limiting the spread of this introduced species. We also find that regions in the Mediterranean and north-central Portugal show the highest probability of being the origin of the colonizers. Using genetically informed environmental niche modelling can enhance our understanding of the initial colonization and spread of invasive species, and also elucidate potential areas of future expansions worldwide.
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Affiliation(s)
- Neftalí Sillero
- CICGE Centro de Investigação em Ciências Geo-Espaciais, Faculdade de Ciências da Universidade do Porto (FCUP), Observatório Astronómico Prof. Manuel de Barros, Alameda do Monte da Virgem, 4430-146 Vila Nova de Gaia, Portugal
| | - Raymond B Huey
- Department of Biology, University of Washington, Seattle, WA, USA
| | - George Gilchrist
- Division of Environmental Biology, National Science Foundation, Alexandria, VA, USA.,Department of Biology, The College of William and Mary, Williamsburg, VA, USA
| | - Leslie Rissler
- Division of Environmental Biology, National Science Foundation, Alexandria, VA, USA
| | - Marta Pascual
- Departament de Genètica, Microbiologia i Estadística and IRBio, Universitat de Barcelona, Diagonal 643, 08028 Barcelona, Spain
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21
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Krueger-Hadfield SA, Ryan WH. Influence of nutrients on ploidy-specific performance in an invasive, haplodiplontic red macroalga. JOURNAL OF PHYCOLOGY 2020; 56:1114-1120. [PMID: 32348550 DOI: 10.1111/jpy.13011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 04/21/2020] [Indexed: 06/11/2023]
Abstract
Worldwide, macroalgae have invaded near-shore marine ecosystems. However, their haplodiplontic life cycles have complicated efforts to predict patterns of growth and spread, particularly since most theoretical predictions are derived from diplontic taxa (i.e., animals). To complete one revolution of the life cycle, two separate ploidy stages, often including separate haploid sexes, must pass through development and reproduction. In the case of the invasive, red macroalga Agarophyton vermiculophyllum, during the invasion of soft-sediment estuaries throughout the Northern Hemisphere, diploid tetrasporophytes came to dominate all free-floating populations and haploid gametophytes were consistently lost. The ecological hypothesis of nutrient limitation might contribute to an explanation of this pattern of tetrasporophytic dominance in free-floating populations. Under this hypothesis, gametophytes should outperform tetrasporophytes under nutrient limited conditions, but tetrasporophytes should be better able to exploit optimal or even abundant nutrient conditions, such as in eutrophic estuaries. We sampled tetrasporophytes, male gametophytes, and female gametophytes from two sites each located on either side of the Delmarva Peninsula that separates the Chesapeake Bay from the Atlantic Ocean. We subjected apices excised from multiple thalli from each life cycle stage to a nutrient-enriched and a nutrient-poor seawater treatment and assessed growth and survival. While nutrient addition increased growth rates, there was no significant difference among ploidies or sexes. Gametophytes did, however, suffer higher mortality than tetrasporophytes. We discuss how nutrient-dependent differences in growth and survival may contribute to observed patterns of tetrasporophytic dominance in soft-sediment A. vermiculophyllum populations.
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Affiliation(s)
- Stacy A Krueger-Hadfield
- Department of Biology, The University of Alabama at Birmingham, 1300 University Blvd, Birmingham, Alabama, 35924, USA
| | - Will H Ryan
- Department of Biology, The University of Alabama at Birmingham, 1300 University Blvd, Birmingham, Alabama, 35924, USA
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22
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Bonthond G, Bayer T, Krueger-Hadfield SA, Barboza FR, Nakaoka M, Valero M, Wang G, Künzel S, Weinberger F. How do microbiota associated with an invasive seaweed vary across scales? Mol Ecol 2020; 29:2094-2108. [PMID: 32408381 DOI: 10.1111/mec.15470] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 04/18/2020] [Accepted: 05/05/2020] [Indexed: 01/13/2023]
Abstract
Communities are shaped by scale dependent processes. To study the diversity and variation of microbial communities across scales, the invasive and widespread seaweed Agarophyton vermiculophyllum presents a unique opportunity. We characterized pro- and eukaryotic communities associated with this holobiont across its known distribution range, which stretches over the northern hemisphere. Our data reveal that community composition and diversity in the holobiont vary at local but also larger geographic scales. While processes acting at the local scale (i.e., within population) are the main structuring drivers of associated microbial communities, changes in community composition also depend on processes acting at larger geographic scales. Interestingly, the largest analysed scale (i.e., native and non-native ranges) explained variation in the prevalence of predicted functional groups, which could suggest a functional shift in microbiota occurred over the course of the invasion process. While high variability in microbiota at the local scale supports A. vermiculophyllum to be a generalist host, we also identified a number of core taxa. These geographically independent holobiont members imply that cointroduction of specific microbiota may have additionally promoted the invasion process.
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Affiliation(s)
- Guido Bonthond
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - Till Bayer
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | | | | | - Masahiro Nakaoka
- Akkeshi Marine Station, Field Science Center for Northern Biosphere, Hokkaido University, Akkeshi, Japan
| | - Myriam Valero
- UMI EBEA 3614, CNRS, UCCh, UACH, Station Biologique de Roscoff, Sorbonne Université, Roscoff, France
| | - Gaoge Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, China.,Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
| | - Sven Künzel
- Max Planck Institute for Evolutionary Biology, Plön, Germany
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23
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Bermejo R, MacMonagail M, Heesch S, Mendes A, Edwards M, Fenton O, Knöller K, Daly E, Morrison L. The arrival of a red invasive seaweed to a nutrient over-enriched estuary increases the spatial extent of macroalgal blooms. MARINE ENVIRONMENTAL RESEARCH 2020; 158:104944. [PMID: 32250838 DOI: 10.1016/j.marenvres.2020.104944] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 02/25/2020] [Accepted: 03/07/2020] [Indexed: 06/11/2023]
Abstract
The red seaweed Agarophyton vermiculophyllum is an invasive species native to the north-west Pacific, which has proliferated in temperate estuaries of Europe, North America and Africa. Combining molecular identification tools, historical satellite imagery and one-year seasonal monitoring of biomass and environmental conditions, the presence of A. vermiculophyllum was confirmed, and the invasion was assessed and reconstructed. The analysis of satellite imagery identified the first bloom in 2014 and revealed that A. vermiculophyllum is capable of thriving in areas, where native bloom-forming species cannot, increasing the size of blooms (ca. 10%). The high biomass found during the peak bloom (>2 kg m-2) and the observation of anoxic events indicated deleterious effects. The monitoring of environmental conditions and biomass variability suggests an essential role of light, temperature and phosphorous in bloom development. The introduction of this species could be considered a threat for local biodiversity and ecosystem functioning in a global change context.
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Affiliation(s)
- Ricardo Bermejo
- Earth and Ocean Sciences, School of Natural Sciences and Ryan Institute, National University of Ireland, Galway, H91 TK33, Ireland.
| | - Michéal MacMonagail
- Earth and Ocean Sciences, School of Natural Sciences and Ryan Institute, National University of Ireland, Galway, H91 TK33, Ireland
| | - Svenja Heesch
- UMR 8227- Integrative Biology of Marine Models, CNRS, Station Biologique de Roscoff, Roscoff, France; Institute for Biological Sciences, University of Rostock, Albert-Einstein-Straße 3, D-18059, Rostock, Germany
| | - Ana Mendes
- Earth and Ocean Sciences, School of Natural Sciences and Ryan Institute, National University of Ireland, Galway, H91 TK33, Ireland
| | - Maeve Edwards
- Zoology Department, School of Natural Sciences and Ryan Institute, National University of Ireland, Galway, H91 TK33, Ireland
| | - Owen Fenton
- Teagasc, Johnstown Castle, Co, Wexford, Ireland
| | - Kay Knöller
- Department of Catchment Hydrology, Helmholtz-Centre for Environmental Research - UFZ Theodor-Lieser-Straße 4, D-06120 Halle, Germany
| | - Eve Daly
- Earth and Ocean Sciences, School of Natural Sciences and Ryan Institute, National University of Ireland, Galway, H91 TK33, Ireland
| | - Liam Morrison
- Earth and Ocean Sciences, School of Natural Sciences and Ryan Institute, National University of Ireland, Galway, H91 TK33, Ireland.
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24
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Nezamabadi V, Akhgar MR, Tahamipour B, Rajaei P. Biosynthesis and Antibacterial Activity of ZnO Nanoparticles by Artemisia aucheri Extract. IRANIAN JOURNAL OF BIOTECHNOLOGY 2020; 18:e2426. [PMID: 33542941 PMCID: PMC7856401 DOI: 10.30498/ijb.2020.151379.2426] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Background Green approach to nanoparticles, including metal oxides Because of an inevitable disadvantage of physical or chemical synthesis routes is attractive nowadays. ZnO nanoparticles play a key role in the medicals and drugs area. Objectives In this study, biosynthesis of ZnO nanoparticles with new approach to enhanced the Antimicrobial properties against gram-negative and gram-positive was performed by use of a new type of plant extract, Artemisia aucheri, in an environmentally friendly, cost-effective, simple procedure way. Materials and Methods By adding Zn(NO3)2 to A. aucheri methanol extract followed by stirring The resulted solution and final heat treatment in 200 °C the ZnO nanoparticles were synthesized. Disc diffusion method was applied to evaluation the Antimicrobial properties of the extract and nanoparticles towards resistance into Escherichia coli (gram-negative) and Staphylococcus aureus (gram-positive). Results X-ray diffraction pattern (XRD) result showed all of the peaks proportion to ZnO and no other peaks were detected, also demonstrated nanostructure nature with crystallite size about 9 nm. In the Fourier transform infrared spectroscopy (FTIR), there is a band in the 550 cm-1 which is corresponded to ZnO. Also 76 nm average particle size obtained by DLS experiments. Energy-dispersive X-ray spectroscopy (EDS) analysis showed strong peaks for Zn and O, support supposition of ZnO nanoparticles. Field emission scanning electron microscopy (FESEM) images indicated spherical rounded particles with the size of average 30 nm. Antibacterial tests showed effective diameter about 11 and 10 mm for plant extract and also 7 and 5 mm for ZnO nanoparticles against E. coli (gram-negative) and S. aureus (gram-positive) in agar disc diffusion method, respectively. Conclusions Biosynthesized ZnO nanoparticles could be a good candidate for antibacterial activity, both against E. coli (gram-negative) and S. aureus (gram-positive) especially for versus E. coli.
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Affiliation(s)
- Vida Nezamabadi
- Department of Chemistry, Faculty of Science, Kerman Branch, Islamic Azad University, Kerman, Iran
| | - Mohammad Reza Akhgar
- Department of Chemistry, Faculty of Science, Kerman Branch, Islamic Azad University, Kerman, Iran
| | - Batool Tahamipour
- Young Researchers and Elite Club, Sirjan Branch, Islamic Azad University, Sirjan, Iran
| | - Peyman Rajaei
- Department of Microbiology, Faculty of Science, Kerman Branch, Islamic Azad University, Kerman, Iran
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25
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Müller-Schärer H, Bouchemousse S, Litto M, McEvoy PB, Roderick GK, Sun Y. How to better predict long-term benefits and risks in weed biocontrol: an evolutionary perspective. CURRENT OPINION IN INSECT SCIENCE 2020; 38:84-91. [PMID: 32240967 DOI: 10.1016/j.cois.2020.02.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 02/17/2020] [Accepted: 02/17/2020] [Indexed: 06/11/2023]
Abstract
Classical biological control (also called importation biological control) of weeds has a remarkable track record for efficiency and safety, but further improvement is still needed, particularly to account for potential evolutionary changes after release. Here, we discuss the increasing yet limited evidence of post-introduction evolution and describe approaches to predict evolutionary change. Recent advances include using experimental evolution studies over several generations that combine -omics tools with behavioral bioassays. This novel approach in weed biocontrol is well suited to explore the potential for rapid evolutionary change in real-time and thus can be used to estimate more accurately potential benefits and risks of agents before their importation. We outline this approach with a chrysomelid beetle used to control invasive common ragweed.
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Affiliation(s)
| | | | - Maria Litto
- Dep. Biology, University of Fribourg, Fribourg, Switzerland
| | - Peter B McEvoy
- Oregon State University, Corvallis, Oregon, United States
| | | | - Yan Sun
- Dep. Biology, University of Fribourg, Fribourg, Switzerland
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26
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Wesselmann M, Anton A, Duarte CM, Hendriks IE, Agustí S, Savva I, Apostolaki ET, Marbà N. Tropical seagrass Halophila stipulacea shifts thermal tolerance during Mediterranean invasion. Proc Biol Sci 2020; 287:20193001. [PMID: 32156215 PMCID: PMC7126082 DOI: 10.1098/rspb.2019.3001] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 02/14/2020] [Indexed: 12/19/2022] Open
Abstract
Exotic species often face new environmental conditions that are different from those that they are adapted to. The tropical seagrass Halophila stipulacea is a Lessepsian migrant that colonized the Mediterranean Sea around 100 years ago, where at present the minimum seawater temperature is cooler than in its native range in the Red Sea. Here, we tested if the temperature range in which H. stipulacea can exist is conserved within the species or if the exotic populations have shifted their thermal breadth and optimum due to the cooler conditions in the Mediterranean. We did so by comparing the thermal niche (e.g. optimal temperatures, and upper and lower thermal limits) of native (Saudi Arabia in the Red Sea) and exotic (Greece and Cyprus in the Mediterranean Sea) populations of H. stipulacea. We exposed plants to 12 temperature treatments ranging from 8 to 40°C for 7 days. At the end of the incubation period, we measured survival, rhizome elongation, shoot recruitment, net population growth and metabolic rates. Upper and lower lethal thermal thresholds (indicated by 50% plant mortality) were conserved across populations, but minimum and optimal temperatures for growth and oxygen production were lower for Mediterranean populations than for the Red Sea one. The displacement of the thermal niche of exotic populations towards the colder Mediterranean Sea regime could have occurred within 175 clonal generations.
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Affiliation(s)
- Marlene Wesselmann
- Global Change Research Group, IMEDEA (CSIC-UIB), Institut Mediterrani d'Estudis Avançats, Miquel Marquès 21, 07190, Esporles, Illes Balears, Spain
| | - Andrea Anton
- Red Sea Research Centre (RSRC) and Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Carlos M. Duarte
- Red Sea Research Centre (RSRC) and Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Iris E. Hendriks
- Global Change Research Group, IMEDEA (CSIC-UIB), Institut Mediterrani d'Estudis Avançats, Miquel Marquès 21, 07190, Esporles, Illes Balears, Spain
| | - Susana Agustí
- Red Sea Research Centre (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Ioannis Savva
- Marine and Environmental Research (MER) Lab, Limassol 4533, Cyprus
| | - Eugenia T. Apostolaki
- Institute of Oceanography, Hellenic Centre for Marine Research, PO Box 2214, 71003 Heraklion, Crete, Greece
| | - Núria Marbà
- Global Change Research Group, IMEDEA (CSIC-UIB), Institut Mediterrani d'Estudis Avançats, Miquel Marquès 21, 07190, Esporles, Illes Balears, Spain
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Krueger‐Hadfield SA. What's ploidy got to do with it? Understanding the evolutionary ecology of macroalgal invasions necessitates incorporating life cycle complexity. Evol Appl 2020; 13:486-499. [PMID: 32431731 PMCID: PMC7045718 DOI: 10.1111/eva.12843] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 06/09/2019] [Accepted: 07/06/2019] [Indexed: 01/04/2023] Open
Abstract
Biological invasions represent grave threats to terrestrial, aquatic, and marine ecosystems, but our understanding of the role of evolution during invasions remains rudimentary. In marine environments, macroalgae account for a large percentage of invaders, but their complicated life cycles render it difficult to move methodologies and predictions wholesale from species with a single, free-living ploidy stage, such as plants or animals. In haplodiplontic macroalgae, meiosis and fertilization are spatiotemporally separated by long-lived, multicellular haploid and diploid stages, and gametes are produced by mitosis, not meiosis. As a consequence, there are unique eco-evolutionary constraints that are not typically considered in invasions. First, selfing can occur in both monoicious (i.e., hermaphroditic) and dioicious (i.e., separate sexes) haplodiplontic macroalgae. In the former, fertilization between gametes produced by the same haploid thallus results in instantaneous, genome-wide homozygosity. In the latter, cross-fertilization between separate male and female haploids that share the same diploid parent is analogous to selfing in plants or animals. Separate sexes, therefore, cannot be used as a proxy for outcrossing. Second, selfing likely facilitates invasions (i.e., Baker's law) and the long-lived haploid stage may enable purging of deleterious mutations, further contributing to invasion success. Third, asexual reproduction will result in the dominance of one ploidy and/or sex and the loss of the other(s). Whether or not sexual reproduction can be recovered depends on which stage is maintained. Finally, fourth, haplodiplontic life cycles are predicted to be maintained through niche differentiation in the haploid and diploid stages. Empirical tests are rare, but fundamental to our understanding of macroalgal invasion dynamics. By highlighting these four phenomena, we can build a framework with which to empirically and theoretically address important gaps in the literature on marine evolutionary ecology, of which biological invasions can serve as unnatural laboratories.
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28
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Krueger-Hadfield SA, Blakeslee AMH, Fowler AE. Incorporating Ploidy Diversity into Ecological and Community Genetics. JOURNAL OF PHYCOLOGY 2019; 55:1198-1207. [PMID: 31349373 DOI: 10.1111/jpy.12906] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 07/11/2019] [Indexed: 06/10/2023]
Abstract
Studies in ecological and community genetics have advanced our understanding of the role of intraspecific diversity in structuring communities and ecosystems. However, in near-shore marine communities, these studies have mostly been restricted to seagrasses, marsh plants, and oysters. Yet, macroalgae are critically important ecosystem engineers in these communities. Greater intraspecific diversity in a macroalgal ecosystem engineer should result in higher primary and secondary production and community resilience. The paucity of studies investigating the consequences of macroalgal intraspecific genetic variation might be due, in part, to the complexity of macroalgal life cycles. The majority of macroalgae have seemingly subtle, but in actuality, profoundly different life cycles than the more typical animal and angiosperm models. Here, we develop a novel genetic diversity metric, PHD , that incorporates the ratio of gametophytic to sporophytic thalli in natural populations. This metric scales from 0 to 1 like many common genetic diversity metrics, such as genotypic richness, enabling comparisons among metrics. We discuss PHD and examples from the literature, with specific reference to the widespread, red seaweed Agarophyton vermiculophyllum. We also discuss a sex diversity metric, PFM , which also scales from 0 to 1, but fewer studies have identified males and females in natural populations. Nevertheless, by incorporating these novel metrics into the repertoire of diversity metrics, we can explore the role of genetic diversity in community and ecosystem dynamics with an emphasis on the unique biology of many macroalgae, as well as other haplodiplontic taxa such as ferns, foraminiferans, and some fungi.
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Affiliation(s)
- Stacy A Krueger-Hadfield
- Department of Biology, University of Alabama at Birmingham, 1300 University Blvd CH464, Birmingham, Alabama, 35294, USA
| | - April M H Blakeslee
- Department of Biology, East Carolina University, E 10th Street, Greenville, North Carolina, 27858, USA
| | - Amy E Fowler
- Department of Environmental Science and Policy, George Mason University, 4400 University Dr, Fairfax, Virginia, 22030, USA
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29
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Herrando-Moraira S, Nualart N, Herrando-Moraira A, Chung MY, Chung MG, López-Pujol J. Climatic niche characteristics of native and invasive Lilium lancifolium. Sci Rep 2019; 9:14334. [PMID: 31586099 PMCID: PMC6778149 DOI: 10.1038/s41598-019-50762-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 09/16/2019] [Indexed: 11/21/2022] Open
Abstract
One of the topics currently under discussion in biological invasions is whether the species' climatic niche has been conserved or, alternatively, has diverged during invasions. Here, we explore niche dynamic processes using the complex invasion history model of Lilium lancifolium, which is the first tested case of a native species (Korea) with two hypothesized spatial (regional and intercontinental) and temporal arrivals: (1) as an archaeophyte in East Asia (before AD 1500); and (2) as a neophyte in Europe, North America, Australia, and New Zealand (after AD 1500). Following a niche examination through both environmental and geographical spaces, the species in the archaeophyte range has apparently filled the ancestral native niche and, rather, would have increased it considerably. The species as a neophyte shows a closer climatic match with the archaeophyte range than with the native one. This pattern of niche similarity suggests that the neophyte range was probably colonized by a subset of archaeophyte propagules adapted to local climate that promoted the species' establishment. Overall, niche conservatism is proposed at each colonization step, from native to archaeophyte, and from archaeophyte to neophyte ranges. We detected signals of an advanced invasion stage within the archaeophyte range and traces of an early introduction stage in neophyte ranges.
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Affiliation(s)
| | - Neus Nualart
- Botanic Institute of Barcelona (IBB, CSIC-ICUB), Barcelona, 08038, Catalonia, Spain
| | | | - Mi Yoon Chung
- Research Institute of Natural Science (RINS), Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Myong Gi Chung
- Division of Life Science and RINS, Gyeongsang National University, Jinju, 52828, Republic of Korea.
| | - Jordi López-Pujol
- Botanic Institute of Barcelona (IBB, CSIC-ICUB), Barcelona, 08038, Catalonia, Spain.
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30
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Robitzch V, Arakaki N, Mauger S, Zapata Rojas JC, Guillemin ML. Stranded alone: The first reported Peruvian population of Agarophyton chilensis is a single-male's clone. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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31
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Hopper JV, McCue KF, Pratt PD, Duchesne P, Grosholz ED, Hufbauer RA. Into the weeds: Matching importation history to genetic consequences and pathways in two widely used biological control agents. Evol Appl 2019; 12:773-790. [PMID: 30976309 PMCID: PMC6439500 DOI: 10.1111/eva.12755] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/03/2018] [Accepted: 12/10/2018] [Indexed: 01/14/2023] Open
Abstract
The intentional introduction of exotic species through classical biological control programs provides unique opportunities to examine the consequences of population movement and ecological processes for the genetic diversity and population structure of introduced species. The weevils Neochetina bruchi and N. eichhorniae (Coleoptera: Curculionidae) have been introduced globally to control the invasive floating aquatic weed, Eichhornia crassipes, with variable outcomes. Here, we use the importation history and data from polymorphic microsatellite markers to examine the effects of introduction processes on population genetic diversity and structure. We report the first confirmation of hybridization between these species, which could have important consequences for the biological control program. For both species, there were more rare alleles in weevils from the native range than in weevils from the introduced range. N. eichhorniae also had higher allelic richness in the native range than in the introduced range. Neither the number of individuals initially introduced nor the number of introduction steps appeared to consistently affect genetic diversity. We found evidence of genetic drift, inbreeding, and admixture in several populations as well as significant population structure. Analyses estimated two populations and 11 sub-clusters for N. bruchi and four populations and 23 sub-clusters for N. eichhorniae, indicating divergence of populations during and after introduction. Genetic differentiation and allocation of introduced populations to source populations generally supported the documented importation history and clarified pathways in cases where multiple introductions occurred. In populations with multiple introductions, genetic admixture may have buffered against the negative effects of serial bottlenecks on genetic diversity. The genetic data combined with the introduction history from this biological control study system provide insight on the accuracy of predicting introduction pathways from genetic data and the consequences of these pathways for the genetic variation and structure of introduced species.
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Affiliation(s)
- Julie V. Hopper
- Department of Biological SciencesUniversity of Southern CaliforniaLos AngelesCalifornia
| | - Kent F. McCue
- Crop Improvement and Genetics Research UnitUSDA/ARSAlbanyCalifornia
| | - Paul D. Pratt
- Invasive Species and Pollinator Health Research UnitUSDA/ARSAlbanyCalifornia
| | - Pierre Duchesne
- Département de BiologieUniversité LavalQuébec CityQuébecCanada
| | - Edwin D. Grosholz
- Department of Environmental Science and PolicyUniversity of California, DavisDavisCalifornia
| | - Ruth A. Hufbauer
- Department of Biological SciencesUniversity of Southern CaliforniaLos AngelesCalifornia
- Department of Bioagricultural Science and Pest ManagementColorado State UniversityFort CollinsColorado
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32
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DNA barcodes of Antipode marine invertebrates in Bay of Biscay and Gulf of Lion ports suggest new biofouling challenges. Sci Rep 2018; 8:16214. [PMID: 30385812 PMCID: PMC6212436 DOI: 10.1038/s41598-018-34447-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 10/17/2018] [Indexed: 11/08/2022] Open
Abstract
Marine biological invasions threaten global biodiversity nowadays. In this article, we have studied fouling communities from 10 port areas of south Bay of Biscay (Atlantic Ocean) and Gulf of Lion (Mediterranean Sea). A total of 834 individuals were genetically barcoded and corresponded to 95 different species. A total of 76 native species 8 genera and 1 family were identified, 58 from the Bay of Biscay and 23 from the Gulf of Lion. Furthermore, 19 species were identified as non-indigenous or cryptogenic (18 from the Bay of Biscay and 4 from the Gulf of Lion). We found a high proportion of Antipode non-indigenous species (NIS) that represented the 19.3% of all sampled individuals and the 54.21% of NIS specimens of this study. A framework for inference of donor regions based on a phylogenetic screening of genetic sequences was proposed as a proof of concept and tested, as well as models for the relationship between NIS introductions, maritime imports and distance to NIS native range and inferred donor areas. Consistent generalized linear models (GLM) with positive association between NIS genetic diversity and distance, not with maritime growth weight imports, strongly suggest that distant NIS could pose higher invasion risk than closer species. Selection for wider tolerance ranges during the long travel -direct or stepwise, as well as environmental similarity between donor and receiving regions, may explain these results.
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Haram LE, Kinney KA, Sotka EE, Byers JE. Mixed effects of an introduced ecosystem engineer on the foraging behavior and habitat selection of predators. Ecology 2018; 99:2751-2762. [DOI: 10.1002/ecy.2495] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 05/15/2018] [Accepted: 05/24/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Linsey E. Haram
- Odum School of Ecology University of Georgia 140 E Green Street Athens Georgia 30602 USA
- Smithsonian Environmental Research Center 647 Contees Wharf Road Edgewater Maryland 21037 USA
| | - Kaitlin A. Kinney
- Odum School of Ecology University of Georgia 140 E Green Street Athens Georgia 30602 USA
- School of Environment and Natural Resources The Ohio State University 2021 Coffey Road Columbus Ohio 43210 USA
| | - Erik E. Sotka
- Grice Marine Laboratory College of Charleston 205 Fort Johnson Road Charleston South Carolina 29412 USA
| | - James E. Byers
- Odum School of Ecology University of Georgia 140 E Green Street Athens Georgia 30602 USA
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Guzinski J, Ballenghien M, Daguin‐Thiébaut C, Lévêque L, Viard F. Population genomics of the introduced and cultivated Pacific kelp Undaria pinnatifida: Marinas-not farms-drive regional connectivity and establishment in natural rocky reefs. Evol Appl 2018; 11:1582-1597. [PMID: 30344629 PMCID: PMC6183462 DOI: 10.1111/eva.12647] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/02/2018] [Accepted: 05/09/2018] [Indexed: 01/03/2023] Open
Abstract
Ports and farms are well-known primary introduction hot spots for marine non-indigenous species (NIS). The extent to which these anthropogenic habitats are sustainable sources of propagules and influence the evolution of NIS in natural habitats was examined in the edible seaweed Undaria pinnatifida, native to Asia and introduced to Europe in the 1970s. Following its deliberate introduction 40 years ago along the French coast of the English Channel, this kelp is now found in three contrasting habitat types: farms, marinas and natural rocky reefs. In the light of the continuous spread of this NIS, it is imperative to better understand the processes behind its sustainable establishment in the wild. In addition, developing effective management plans to curtail the spread of U. pinnatifida requires determining how the three types of populations interact with one another. In addition to an analysis using microsatellite markers, we developed, for the first time in a kelp, a ddRAD-sequencing technique to genotype 738 individuals sampled in 11 rocky reefs, 12 marinas, and two farms located along ca. 1,000 km of coastline. As expected, the RAD-seq panel showed more power than the microsatellite panel for identifying fine-grained patterns. However, both panels demonstrated habitat-specific properties of the study populations. In particular, farms displayed very low genetic diversity and no inbreeding conversely to populations in marinas and natural rocky reefs. In addition, strong, but chaotic regional genetic structure, was revealed, consistent with human-mediated dispersal (e.g., leisure boating). We also uncovered a tight relationship between populations in rocky reefs and those in nearby marinas, but not with nearby farms, suggesting spillover from marinas into the wild. At last, a temporal survey spanning 20 generations showed that wild populations are now self-sustaining, albeit there was no evidence for local adaptation to any of the three habitats. These findings highlight that limiting the spread of U. pinnatifida requires efficient management policies that also target marinas.
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Affiliation(s)
- Jaromir Guzinski
- Laboratory Adaptation and Diversity in Marine Environments (UMR 7144 CNRS SU)CNRSSorbonne UniversitéRoscoffFrance
- Laboratory Evolutionary Biology and Ecology of Algae (UMI 3614 CNRS SU)CNRSSorbonne UniversitéRoscoffFrance
| | - Marion Ballenghien
- Laboratory Adaptation and Diversity in Marine Environments (UMR 7144 CNRS SU)CNRSSorbonne UniversitéRoscoffFrance
| | - Claire Daguin‐Thiébaut
- Laboratory Adaptation and Diversity in Marine Environments (UMR 7144 CNRS SU)CNRSSorbonne UniversitéRoscoffFrance
| | - Laurent Lévêque
- Fédération de Recherche (FR 2424 CNRS SU)CNRSSorbonne UniversitéRoscoffFrance
| | - Frédérique Viard
- Laboratory Adaptation and Diversity in Marine Environments (UMR 7144 CNRS SU)CNRSSorbonne UniversitéRoscoffFrance
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