1
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Mpopetsi PP, Kadye WT. Functional diversity does not explain the co-occurrence of non-native species within a flow-modified African river system. JOURNAL OF FISH BIOLOGY 2024; 104:1262-1275. [PMID: 37837275 DOI: 10.1111/jfb.15587] [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: 07/03/2023] [Revised: 08/31/2023] [Accepted: 10/10/2023] [Indexed: 10/15/2023]
Abstract
Globally, there is growing concern on the occurrence of multiple non-native species within invaded habitats. Proliferation of multiple non-native species together with anthropogenic-driven habitat modifications raise questions on the mechanisms facilitating the co-occurrence of these species and their potential impact within the recipient systems. Using the Great Fish River system (South Africa) which is anthropogenically-modified by inter-basin water transfer (IBWT), as a case study, this research employed trait-based approaches to explore patterns associated with the co-occurrence of multiple non-native fish species. This was achieved by investigating the role of functional diversity of non-native and native fishes in relation to their composition, distribution and environmental relationships. Nineteen functional traits that defined two broad ecological attributes (habitat use and feeding) were determined for 13 fish species that comprised eight native and five non-native fishes. We used these data to, firstly, evaluate functional diversity patterns and to compare functional traits of native and non-native fishes in the Great Fish River system. Secondly, we employed multivariate ordination analyses (factor analysis, RLQ and fourth-corner analyses) to investigate interspecific trait variations and potential species-trait-environmental relationships. From a functional diversity perspective, there were no significant differences in most functional diversity indices between native and non-native species. Despite interspecific variation in body morphology-related traits, we also found no clear separation between native and non-native species based on the ordination analysis of the functional traits. Furthermore, while RLQ ordination showed broad spatial patterns, the fourth-corner analyses revealed no significant relationships among species distribution, functional traits and environmental variables. The weak species-trait-environment relationship observed in this study suggests that environmental filtering was likely a poor determinant of functional trait structure within the Great Fish River. Modification of the natural flow regime may have weakened the relationship between species traits and the environment as has been shown in other systems.
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Affiliation(s)
- Pule P Mpopetsi
- Department of Ichthyology and Fisheries Science, Rhodes University, Makhanda, South Africa
| | - Wilbert T Kadye
- Department of Ichthyology and Fisheries Science, Rhodes University, Makhanda, South Africa
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
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2
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Stahlschmidt ZR, Joura H, Makarem JR, Sun JL. Hot and scared: how do heatwaves and predation risk impact resource acquisition and allocation? Biol Lett 2024; 20:20240009. [PMID: 38653332 PMCID: PMC11040502 DOI: 10.1098/rsbl.2024.0009] [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: 01/08/2024] [Revised: 02/12/2024] [Accepted: 03/05/2024] [Indexed: 04/25/2024] Open
Abstract
Heatwaves are increasingly prevalent and can constrain investment into important life-history traits. In addition to heatwaves, animals regularly encounter threats from other organisms in their environments, such as predators. The combination of these two environmental factors introduces a decision-making conflict-heat exposure requires more food intake to fuel investment into fitness-related traits, but foraging in the presence of predators increases the threat of mortality. Thus, we used female variable field crickets (Gryllus lineaticeps) to investigate the effects of heatwaves in conjunction with predation risk (exposed food and water sources, and exposure to scent from black widow spiders, Latrodectus hesperus) on resource acquisition (food intake) and allocation (investment into ovarian and somatic tissues). A simulated heatwave increased food intake and the allocation of resources to reproductive investment. Crickets exposed to high predation risk reduced food intake, but they were able to maintain reproductive investment at an expense to investment into somatic tissue. Thus, heatwaves and predation risk deprioritized investment into self-maintenance, which may impair key physiological processes. This study is an important step towards understanding the ecology of fear in a warming world.
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Affiliation(s)
| | - Harnoor Joura
- Department of Biological Sciences, University of the Pacific, Stockton, CA, USA
| | - Jenna R. Makarem
- Department of Biological Sciences, University of the Pacific, Stockton, CA, USA
| | - Jodie L. Sun
- Department of Biological Sciences, University of the Pacific, Stockton, CA, USA
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3
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Danet A, Giam X, Olden JD, Comte L. Past and recent anthropogenic pressures drive rapid changes in riverine fish communities. Nat Ecol Evol 2024; 8:442-453. [PMID: 38291153 DOI: 10.1038/s41559-023-02271-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/13/2023] [Indexed: 02/01/2024]
Abstract
Understanding how and why local communities change is a pressing task for conservation, especially in freshwater systems. It remains challenging because of the complexity of biodiversity changes, driven by the spatio-temporal heterogeneity of human pressures. Using a compilation of riverine fish community time series (93% between 1993 and 2019) across the Palaearctic, Nearctic and Australasia realms, we assessed how past and recent anthropogenic pressures drive community changes across both space and time. We found evidence of rapid changes in community composition of 30% per decade characterized by important changes in the dominant species, together with a 13% increase in total abundance per decade and a 7% increase in species richness per decade. The spatial heterogeneity in these trends could be traced back to the strength and timing of anthropogenic pressures and was mainly mediated by non-native species introductions. Specifically, we demonstrate that the negative effects of anthropogenic pressures on species richness and total abundance were compensated over time by the establishment of non-native species, a pattern consistent with previously reported biotic homogenization at the global scale. Overall, our study suggests that accounting for the complexity of community changes and its drivers is a crucial step to reach global conservation goals.
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Affiliation(s)
- Alain Danet
- School of Biological Sciences, Illinois State University, Normal, IL, USA.
- School of Biosciences, University of Sheffield, Sheffield, UK.
| | - Xingli Giam
- Department of Ecology and Evolutionary Biology, The University of Tennessee, Knoxville, TN, USA
| | - Julian D Olden
- School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA
| | - Lise Comte
- School of Biological Sciences, Illinois State University, Normal, IL, USA
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4
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Xu M, Li SP, Liu C, Tedesco PA, Dick JTA, Fang M, Wei H, Yu F, Shu L, Wang X, Gu D, Mu X. Global freshwater fish invasion linked to the presence of closely related species. Nat Commun 2024; 15:1411. [PMID: 38360829 PMCID: PMC10869807 DOI: 10.1038/s41467-024-45736-8] [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: 06/22/2023] [Accepted: 02/02/2024] [Indexed: 02/17/2024] Open
Abstract
In the Anthropocene, non-native freshwater fish introductions and translocations have occurred extensively worldwide. However, their global distribution patterns and the factors influencing their establishment remain poorly understood. We analyze a comprehensive database of 14953 freshwater fish species across 3119 river basins and identify global hotspots for exotic and translocated non-native fishes. We show that both types of non-native fishes are more likely to occur when closely related to native fishes. This finding is consistent across measures of phylogenetic relatedness, biogeographical realms, and highly invaded countries, even after accounting for the influence of native diversity. This contradicts Darwin's naturalization hypothesis, suggesting that the presence of close relatives more often signifies suitable habitats than intensified competition, predicting the establishment of non-native fish species. Our study provides a comprehensive assessment of global non-native freshwater fish patterns and their phylogenetic correlates, laying the groundwork for understanding and predicting future fish invasions in freshwater ecosystems.
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Affiliation(s)
- Meng Xu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangzhou, China.
- Key Laboratory of Alien Species and Ecological Security (CAFS), Chinese Academy of Fishery Sciences, Guangzhou, China.
| | - Shao-Peng Li
- Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China
| | - Chunlong Liu
- The Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
| | - Pablo A Tedesco
- UMR EDB, IRD 253, CNRS 5174, UPS, Université Toulouse 3 Paul Sabatier, Toulouse, France
| | - Jaimie T A Dick
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - Miao Fang
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Key Laboratory of Alien Species and Ecological Security (CAFS), Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Hui Wei
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Key Laboratory of Alien Species and Ecological Security (CAFS), Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Fandong Yu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Key Laboratory of Alien Species and Ecological Security (CAFS), Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Lu Shu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Key Laboratory of Alien Species and Ecological Security (CAFS), Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Xuejie Wang
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Key Laboratory of Alien Species and Ecological Security (CAFS), Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Dangen Gu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangzhou, China.
- Key Laboratory of Alien Species and Ecological Security (CAFS), Chinese Academy of Fishery Sciences, Guangzhou, China.
| | - Xidong Mu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangzhou, China.
- Key Laboratory of Alien Species and Ecological Security (CAFS), Chinese Academy of Fishery Sciences, Guangzhou, China.
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5
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Sharpe DMT, Valverde MP, De León LF, Hendry AP, Torchin ME. Biological invasions alter the structure of a tropical freshwater food web. Ecology 2023; 104:e4173. [PMID: 37768609 DOI: 10.1002/ecy.4173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023]
Abstract
Biological invasions are expected to alter food web structure, but there are limited empirical data directly comparing invaded versus uninvaded food webs, particularly in species-rich, tropical systems. We characterize for the first time the food web of Lake Gatun-a diverse and highly invaded tropical freshwater lake within the Panama Canal. We used stable isotope analysis to reconstruct the trophic structure of the fish community of Lake Gatun and to compare it to that of a minimally invaded reference lake, Lake Bayano. We found significant differences between the trophic structures of these two Neotropical lakes, notably that Lake Gatun's fish community was characterized by a longer food chain, greater isotopic diversity, a broader range of trophic positions and body sizes, and shifts in the isotopic positions of several native taxa relative to Lake Bayano. The degree of isotopic overlap between native and non-native trophic guilds in Lake Gatun was variable, with herbivores exhibiting the lowest (20%-29%) overlap and carnivores the greatest (81%-100%). Overall, our results provide some of the first empirical evidence for the ways in which multiple introduced and native species may partition isotopic space in a species-rich tropical freshwater food web.
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Affiliation(s)
- Diana M T Sharpe
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, USA
- Department of Biology, McGill University, Montréal, Québec, Canada
- Smithsonian Tropical Research Institute, Panama City, Panama
| | - Marisol P Valverde
- Department of Biology, McGill University, Montréal, Québec, Canada
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, USA
| | - Luis F De León
- Smithsonian Tropical Research Institute, Panama City, Panama
- Department of Biology, University of Massachusetts Boston, Boston, Massachusetts, USA
- Instituto de Investigaciones Cientificas y Servicios de Alta Tecnologia, Centro de Biodiversidad y Descubrimiento de Drogas, Panama City, Panama
| | - Andrew P Hendry
- Department of Biology, McGill University, Montréal, Québec, Canada
| | - Mark E Torchin
- Smithsonian Tropical Research Institute, Panama City, Panama
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6
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Cantera I, Jézéquel C, Dejean T, Murienne J, Vigouroux R, Valentini A, Brosse S. Deforestation strengthens environmental filtering and competitive exclusion in Neotropical streams and rivers. Proc Biol Sci 2023; 290:20231130. [PMID: 37700645 PMCID: PMC10498049 DOI: 10.1098/rspb.2023.1130] [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: 05/23/2023] [Accepted: 08/16/2023] [Indexed: 09/14/2023] Open
Abstract
Understanding how anthropization impacts the assembly of species onto communities is pivotal to go beyond the observation of biodiversity changes and reveal how disturbances affect the environmental and biotic processes shaping biodiversity. Here, we propose a simple framework to measure the assembly processes underpinning functional convergence/divergence patterns. We applied this framework to northern Amazonian fish communities inventoried using environmental DNA in 35 stream sites and 64 river sites. We found that the harsh and unstable environmental conditions characterizing streams conveyed communities towards functional convergence, by filtering traits related to food acquisition and, to a lower extent, dispersal. Such environmental filtering also strengthened competition by excluding species having less competitive food acquisition traits. Instead, random species assembly was more marked in river communities, which may be explained by the downstream position of rivers facilitating the dispersion of species. Although fish assembly rules differed between streams and river fish communities, anthropogenic disturbances reduced functional divergence in both ecosystems, with a reinforcement of both environmental filtering and weaker competitor exclusion. This may explain the substantial biodiversity alterations observed under slight deforestation levels in Neotropical freshwater ecosystems and underlines their vulnerability to anthropic disturbances that not only affect species persistence but also modify community assembly rules.
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Affiliation(s)
- Isabel Cantera
- Department of Environmental Science and Policy, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
- Laboratoire Evolution et Diversité Biologique, UMR5174, Université Paul Sabatier, CNRS, IRD, 118 route de Narbonne, 31062 Toulouse, France
| | - Céline Jézéquel
- Laboratoire Evolution et Diversité Biologique, UMR5174, Université Paul Sabatier, CNRS, IRD, 118 route de Narbonne, 31062 Toulouse, France
| | - Tony Dejean
- SPYGEN, 17 rue du Lac Saint-André Savoie Technolac, BP 274, 73375 Le Bourget-du-Lac, France
| | - Jérôme Murienne
- Laboratoire Evolution et Diversité Biologique, UMR5174, Université Paul Sabatier, CNRS, IRD, 118 route de Narbonne, 31062 Toulouse, France
| | - Régis Vigouroux
- HYDRECO, Laboratoire Environnement de Petit Saut, BP 823, 97388 Kourou Cedex, French Guiana
| | - Alice Valentini
- SPYGEN, 17 rue du Lac Saint-André Savoie Technolac, BP 274, 73375 Le Bourget-du-Lac, France
| | - Sébastien Brosse
- Laboratoire Evolution et Diversité Biologique, UMR5174, Université Paul Sabatier, CNRS, IRD, 118 route de Narbonne, 31062 Toulouse, France
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7
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Dai Q, Cao Y, Chu ML, Larson ER, Suski CD. Agricultural conservation may not help Midwestern US freshwater biodiversity in a changing climate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 872:162143. [PMID: 36773923 DOI: 10.1016/j.scitotenv.2023.162143] [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: 11/14/2022] [Revised: 01/31/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Global climate change and agricultural disturbance often drive freshwater biodiversity changes at the regional level, particularly in the Midwestern US. Agricultural conservation practices have been implemented to reduce sediment and nutrient loading (e.g., crop rotation, cover crops, reduced tillage, and modified fertilizer application) for long-term economic sustainability and environmental resilience. However, the effectiveness of these efforts on freshwater biodiversity is not conclusive. In this study, we used the Kaskaskia River Watershed, Illinois as an example to evaluate how agricultural conservation practices affects both taxonomic and functional diversity under climate changes. The measures of trait-based functional diversity provide mechanistic explanations of biological changes. In specific, we model and predict 1) species richness (SR), 2) functional dispersion (FDis), and 3) functional evenness (FEve). FDis and FEve were based on ecology (life history, habitat preference, and trophic level) and physiology (thermal preference, swimming preference, etc.). The best random-forest regression models showed that flow, temperature, nitrate, and the watershed area were among the top predictors of the three biodiversity measures. We then used the models to predict the changes of SR and FDis under RCP8.5 climate change scenarios. SR and FDis were predicted to decrease in most sites, up to 20 % and 4 % by 2099, respectively. When agricultural conservation practices were considered together with climate changes, the decreasing trends of SR and FDis remained, suggesting climate change outweighed potential agriculture conservation efforts. Thus, climate-change effects on temperature and flow regimes need to be incorporated into the design of agricultural practices for freshwater biodiversity conservation.
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Affiliation(s)
- Qihong Dai
- Program in Ecology, Evolution, and Conservation Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America.
| | - Yong Cao
- Illinois Natural History Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign, Champaign, IL 61820, United States of America
| | - Maria L Chu
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
| | - Eric R Larson
- Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
| | - Cory D Suski
- Program in Ecology, Evolution, and Conservation Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America; Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
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8
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Su G, Mertel A, Brosse S, Calabrese JM. Species invasiveness and community invasibility of North American freshwater fish fauna revealed via trait-based analysis. Nat Commun 2023; 14:2332. [PMID: 37087448 PMCID: PMC10122662 DOI: 10.1038/s41467-023-38107-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 04/14/2023] [Indexed: 04/24/2023] Open
Abstract
While biological invasions are recognized as a major threat to global biodiversity, determining non-native species' abilities to establish in new areas (species invasiveness) and the vulnerability of those areas to invasions (community invasibility) is challenging. Here, we use trait-based analysis to profile invasive species and quantify the community invasibility for >1,800 North American freshwater fish communities. We show that, in addition to effects attributed to propagule pressure caused by human intervention, species with higher fecundity, longer lifespan and larger size tend to be more invasive. Community invasibility peaks when the functional distance among native species was high, leaving unoccupied functional space for the establishment of potential invaders. Our findings illustrate how the functional traits of non-native species determining their invasiveness, and the functional characteristics of the invaded community determining its invasibility, may be identified. Considering those two determinants together will enable better predictions of invasions.
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Affiliation(s)
- Guohuan Su
- Center for Advanced Systems Understanding (CASUS), Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Görlitz, Germany.
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
| | - Adam Mertel
- Center for Advanced Systems Understanding (CASUS), Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Görlitz, Germany
| | - Sébastien Brosse
- Laboratoire Evolution et Diversité Biologique (EDB), Université de Toulouse, CNRS, IRD, UPS, Toulouse, France
| | - Justin M Calabrese
- Center for Advanced Systems Understanding (CASUS), Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Görlitz, Germany
- Department of Ecological Modelling, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
- Department of Biology, University of Maryland, College Park, MD, USA
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9
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Kiffney PM, Lisi PJ, Liermann M, Naman SM, Anderson JH, Bond MH, Pess GR, Koehler ME, Buhle ER, Buehrens TW, Klett RS, Cram JM, Quinn TP. Colonization of a temperate river by mobile fish following habitat reconnection. Ecosphere 2023. [DOI: 10.1002/ecs2.4336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Affiliation(s)
- P. M. Kiffney
- Fish Ecology, Northwest Fisheries Science Center National Marine Fisheries Service, NOAA Seattle Washington USA
- School of Aquatic and Fishery Sciences University of Washington Seattle Washington USA
| | - P. J. Lisi
- Washington Department of Fish and Wildlife Olympia Washington USA
| | - M. Liermann
- Fish Ecology, Northwest Fisheries Science Center National Marine Fisheries Service, NOAA Seattle Washington USA
| | - S. M. Naman
- Department of Zoology University of British Columbia Vancouver British Columbia Canada
- Fisheries and Oceans Canada Freshwaer Ecosystems Section Cultus Lake British Columbia Canada
| | - J. H. Anderson
- Washington Department of Fish and Wildlife Olympia Washington USA
| | - M. H. Bond
- Fish Ecology, Northwest Fisheries Science Center National Marine Fisheries Service, NOAA Seattle Washington USA
| | - G. R. Pess
- Fish Ecology, Northwest Fisheries Science Center National Marine Fisheries Service, NOAA Seattle Washington USA
- School of Aquatic and Fishery Sciences University of Washington Seattle Washington USA
| | | | - E. R. Buhle
- Affiliate, Northwest Fisheries Science Center National Marine Fisheries Service, NOAA Seattle Washington USA
- Mount Hood Environmental Sandy Oregon USA
| | - T. W. Buehrens
- Washington Department of Fish and Wildlife Ridgefield Washington USA
| | - R. S. Klett
- Colville Indian Tribes Nespelem Washington USA
| | - J. M. Cram
- Washington Department of Fish and Wildlife Wenatchee Washington USA
| | - T. P. Quinn
- School of Aquatic and Fishery Sciences University of Washington Seattle Washington USA
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10
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Angulo-Valencia MA, Peláez O, Alves DC, Gomes LC, Agostinho AA. Ecological traits and range size determine the occurrence of non-native fish species in a Neotropical floodplain. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02974-5] [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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11
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Healy BD, Budy P, Conner MM, Omana Smith EC. Life and death in a dynamic environment: Invasive trout, floods, and intraspecific drivers of translocated populations. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2022. [PMID: 35403769 DOI: 10.6084/m9.figshare.c.5805593.v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Understanding the relative strengths of intrinsic and extrinsic factors regulating populations is a long-standing focus of ecology and critical to advancing conservation programs for imperiled species. Conservation could benefit from an increased understanding of factors influencing vital rates (somatic growth, recruitment, survival) in small, translocated populations, which is lacking owing to difficulties in long-term monitoring of rare species. Translocations, here defined as the transfer of wild-captured individuals from source populations to new habitats, are widely used for species conservation, but outcomes are often minimally monitored, and translocations that are monitored often fail. To improve our understanding of how translocated populations respond to environmental variation, we developed and tested hypotheses related to intrinsic (density dependent) and extrinsic (introduced rainbow trout Oncorhynchus mykiss, stream flow and temperature regime) causes of vital rate variation in endangered humpback chub (Gila cypha) populations translocated to Colorado River tributaries in the Grand Canyon (GC), USA. Using biannual recapture data from translocated populations over 10 years, we tested hypotheses related to seasonal somatic growth, and recruitment and population growth rates with linear mixed-effects models and temporal symmetry mark-recapture models. We combined data from recaptures and resights of dispersed fish (both physical captures and continuously recorded antenna detections) from throughout GC to test survival hypotheses, while accounting for site fidelity, using joint live-recapture/live-resight models. While recruitment only occurred in one site, which also drove population growth (relative to survival), evidence supported hypotheses related to density dependence in growth, survival, and recruitment, and somatic growth and recruitment were further limited by introduced trout. Mixed-effects models explained between 67% and 86% of the variation in somatic growth, which showed increased growth rates with greater flood-pulse frequency during monsoon season. Monthly survival was 0.56-0.99 and 0.80-0.99 in the two populations, with lower survival during periods of higher intraspecific abundance and low flood frequency. Our results suggest translocations can contribute toward the recovery of large-river fishes, but continued suppression of invasive fishes to enhance recruitment may be required to ensure population resilience. Furthermore, we demonstrate the importance of flooding to population demographics in food-depauperate, dynamic, invaded systems.
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Affiliation(s)
- Brian D Healy
- Department of Watershed Sciences and the Ecology Center, Utah State University, Logan, Utah, USA
- Native Fish Ecology and Conservation Program, Division of Science and Resource Management, Grand Canyon National Park, National Park Service, Flagstaff, Arizona, USA
| | - Phaedra Budy
- Department of Watershed Sciences and the Ecology Center, Utah State University, Logan, Utah, USA
- United States Geological Survey, Utah Cooperative Fish and Wildlife Research Unit, Department of Watershed Sciences, Utah State University, Logan, Utah, USA
| | - Mary M Conner
- Department of Wildland Resources and the Ecology Center, Utah State University, Logan, Utah, USA
| | - Emily C Omana Smith
- Native Fish Ecology and Conservation Program, Division of Science and Resource Management, Grand Canyon National Park, National Park Service, Flagstaff, Arizona, USA
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12
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Healy BD, Budy P, Conner MM, Omana Smith EC. Life and death in a dynamic environment: Invasive trout, floods, and intraspecific drivers of translocated populations. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2022; 32:e2635. [PMID: 35403769 PMCID: PMC9541007 DOI: 10.1002/eap.2635] [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: 09/05/2021] [Revised: 01/25/2022] [Accepted: 02/24/2022] [Indexed: 05/14/2023]
Abstract
Understanding the relative strengths of intrinsic and extrinsic factors regulating populations is a long-standing focus of ecology and critical to advancing conservation programs for imperiled species. Conservation could benefit from an increased understanding of factors influencing vital rates (somatic growth, recruitment, survival) in small, translocated populations, which is lacking owing to difficulties in long-term monitoring of rare species. Translocations, here defined as the transfer of wild-captured individuals from source populations to new habitats, are widely used for species conservation, but outcomes are often minimally monitored, and translocations that are monitored often fail. To improve our understanding of how translocated populations respond to environmental variation, we developed and tested hypotheses related to intrinsic (density dependent) and extrinsic (introduced rainbow trout Oncorhynchus mykiss, stream flow and temperature regime) causes of vital rate variation in endangered humpback chub (Gila cypha) populations translocated to Colorado River tributaries in the Grand Canyon (GC), USA. Using biannual recapture data from translocated populations over 10 years, we tested hypotheses related to seasonal somatic growth, and recruitment and population growth rates with linear mixed-effects models and temporal symmetry mark-recapture models. We combined data from recaptures and resights of dispersed fish (both physical captures and continuously recorded antenna detections) from throughout GC to test survival hypotheses, while accounting for site fidelity, using joint live-recapture/live-resight models. While recruitment only occurred in one site, which also drove population growth (relative to survival), evidence supported hypotheses related to density dependence in growth, survival, and recruitment, and somatic growth and recruitment were further limited by introduced trout. Mixed-effects models explained between 67% and 86% of the variation in somatic growth, which showed increased growth rates with greater flood-pulse frequency during monsoon season. Monthly survival was 0.56-0.99 and 0.80-0.99 in the two populations, with lower survival during periods of higher intraspecific abundance and low flood frequency. Our results suggest translocations can contribute toward the recovery of large-river fishes, but continued suppression of invasive fishes to enhance recruitment may be required to ensure population resilience. Furthermore, we demonstrate the importance of flooding to population demographics in food-depauperate, dynamic, invaded systems.
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Affiliation(s)
- Brian D. Healy
- Department of Watershed Sciences and the Ecology CenterUtah State UniversityLoganUtahUSA
- Native Fish Ecology and Conservation Program, Division of Science and Resource ManagementGrand Canyon National Park, National Park ServiceFlagstaffArizonaUSA
| | - Phaedra Budy
- Department of Watershed Sciences and the Ecology CenterUtah State UniversityLoganUtahUSA
- United States Geological Survey, Utah Cooperative Fish and Wildlife Research Unit, Department of Watershed SciencesUtah State UniversityLoganUtahUSA
| | - Mary M. Conner
- Department of Wildland Resources and the Ecology CenterUtah State UniversityLoganUtahUSA
| | - Emily C. Omana Smith
- Native Fish Ecology and Conservation Program, Division of Science and Resource ManagementGrand Canyon National Park, National Park ServiceFlagstaffArizonaUSA
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13
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Gentilin-Avanci C, Pinha GD, Ratz Scoarize MM, Petsch DK, Benedito E. Warming water and leaf litter quality but not plant origin drive decomposition and fungal diversity in an experiment. Fungal Biol 2022; 126:631-639. [DOI: 10.1016/j.funbio.2022.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 07/12/2022] [Accepted: 08/08/2022] [Indexed: 11/26/2022]
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14
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Ilarri M, Souza AT, Dias E, Antunes C. Influence of climate change and extreme weather events on an estuarine fish community. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 827:154190. [PMID: 35235849 DOI: 10.1016/j.scitotenv.2022.154190] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/11/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Extreme weather events are becoming more frequent as a result of climate change, and the increasing frequency of these events may lead to significant changes in fish assemblages. In this sense, this work aimed to study the effects of climate change and extreme weather events on fish assemblages in the Rio Minho estuary (Portugal). Between 2010 and 2019, continuous weekly sampling with fyke nets was carried out to assess the dynamics of fish assemblages in the estuary. In addition, temperature and precipitation data were obtained from satellite information to assess the relationship between climatic variables and fish composition, structure, and diversity. Fish populations changed significantly over time, becoming less diverse and largely dominated by a few, mostly invasive species (e.g., carp, goldfish, pumpkinseed, and tench), while the abundance of most native species declined over the years (e.g., panjorca, stickleback, and shad). High temperatures and low precipitation negatively affected native species, while the invasive species benefited from increased temperatures and extreme weather events (droughts and floods).
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Affiliation(s)
- Martina Ilarri
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Allan T Souza
- Institute of Hydrobiology, Biology Centre of the Czech Academy of Sciences, Na Sádkách 7, 370 05 České Budějovice, Czech Republic.
| | - Ester Dias
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Carlos Antunes
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; Aquamuseu do Rio Minho, Parque do Castelinho, 4920-290 Vila Nova de Cerveira, Portugal
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15
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The Reproductive Characteristics of Garra tibetana, an Endemic Labeonine Fish in the Lower Yarlung Tsangpo River, Tibet, China. FISHES 2022. [DOI: 10.3390/fishes7030104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The reproductive characteristics of an endemic labeonine fish, Garra tibetana, were investigated by examining 778 individuals collected monthly, from December 2015 to November 2016, in the lower Yarlung Tsangpo River, Tibet, China. Results showed that females predominated in the overall population with a sex ratio of 1:0.73, while the sex ratio for the mature individuals was 1:1. Standard length at first maturity was estimated as 82.4 mm for females and 55.4 mm for males based on logistic regression. Analyses based on the monthly variation of the gonad-somatic index, monthly proportion of gonad development, and frequency distribution of oocyte diameter demonstrated the spawning period of G. tibetana to be from February to April, with a peak in March. Absolute fecundity ranged from 113 to 440 oocytes, with a mean of 201.8 ± 58.7 oocytes. The relative fecundity ranged from 6 to 18 oocytes per gram, with a mean of 11.7 ± 2.6 oocytes per gram. Absolute fecundity showed positive correlations with standard length, body weight, and gonad weight, revealing that larger females produced more offspring. In conclusion, G. tibetana matures early and spawns synchronously from February to April, with low fecundity and large oocytes. These reproductive characteristics could explain why this species is dominant in its habitat and also provide valuable information for developing applicable management and conservation strategies.
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16
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Hitt NP, Landsman AP, Raesly RL. Life history strategies of stream fishes linked to predictors of hydrologic stability. Ecol Evol 2022; 12:e8861. [PMID: 35509608 PMCID: PMC9055292 DOI: 10.1002/ece3.8861] [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: 12/13/2021] [Revised: 03/11/2022] [Accepted: 04/01/2022] [Indexed: 11/05/2022] Open
Abstract
Life history theory provides a framework to understand environmental change based on species strategies for survival and reproduction under stable, cyclical, or stochastic environmental conditions. We evaluated environmental predictors of fish life history strategies in 20 streams intersecting a national park within the Potomac River basin in eastern North America. We sampled stream sites during 2018–2019 and collected 3801 individuals representing 51 species within 10 taxonomic families. We quantified life history strategies for species from their coordinates in an ordination space defined by trade‐offs in spawning season duration, fecundity, and parental care characteristic of opportunistic, periodic, and equilibrium strategies. Our analysis revealed important environmental predictors: Abundance of opportunistic strategists increased with low‐permeability soils that produce flashy runoff dynamics and decreased with karst terrain (carbonate bedrock) where groundwater inputs stabilize stream flow and temperature. Conversely, abundance of equilibrium strategists increased in karst terrain indicating a response to more stable environmental conditions. Our study indicated that fish community responses to groundwater and runoff processes may be explained by species traits for survival and reproduction. Our findings also suggest the utility of life history theory for understanding ecological responses to destabilized environmental conditions under global climate change.
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Affiliation(s)
- Nathaniel P. Hitt
- U.S. Geological Survey U.S. Department of the Interior Eastern Ecological Science Center Kearneysville West Virginia USA
| | - Andrew P. Landsman
- National Park Service U.S. Department of the Interior Chesapeake and Ohio Canal National Historical Park Williamsport Maryland USA
| | - Richard L. Raesly
- Department of Biology Frostburg State University Frostburg Maryland USA
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17
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Pilger TJ, Gido KB, Propst DL, Whitney JE, Turner TF. Demography predicts genetic effective size in a desert stream fish community. Am Nat 2022; 200:275-291. [DOI: 10.1086/720208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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18
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Przybylski M, Grabowska J, Zięba G. Trends in research on invasive fishes. JOURNAL OF VERTEBRATE BIOLOGY 2022. [DOI: 10.25225/jvb.e2101] [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]
Affiliation(s)
- Mirosław Przybylski
- Department of Ecology and Vertebrate Zoology, Faculty of Biology and Environmental Conservation, University of Łódź, Poland; e-mail: , ,
| | - Joanna Grabowska
- Department of Ecology and Vertebrate Zoology, Faculty of Biology and Environmental Conservation, University of Łódź, Poland; e-mail: , ,
| | - Grzegorz Zięba
- Department of Ecology and Vertebrate Zoology, Faculty of Biology and Environmental Conservation, University of Łódź, Poland; e-mail: , ,
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19
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Perkin JS, Montaña CG, Nogueira EJ, Brandão BB, Mattox GMT, Conway KW. Estimated richness and environmental correlates of miniature fish assemblages in the rio Jacundá, Brazil. NEOTROPICAL ICHTHYOLOGY 2022. [DOI: 10.1590/1982-0224-2021-0051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract South America is home to more miniature fishes (<26 mm in standard length) than any other continent. Despite this diversity, the ecology of miniature fishes is poorly studied. To promote the study of miniature fish ecology, we investigated patterns in total richness, assemblage structure and environmental correlates for miniature fishes in the rio Jacundá drainage of the Lower Amazon River basin, Pará State. Based on multi-pass dip-netting of leaf litter at 20 locations distributed across two sites, we collected miniature species and used rarefaction to estimate 9 to 14 species might be present. The miniature fish assemblage at the upstream site was a nested subset of the downstream site, and water pH and canopy cover, two features known to be altered by deforestation, correlated most strongly with assemblage variation. Our work represents one of the first quantitative assessments of environmental correlates with miniature fish assemblages and highlights research topics that should be investigated further to promote conservation and preservation of the overlooked and understudied Amazonian diminutive freshwater fish fauna.
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20
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Lawson KM, Hill JE. Life history strategies differentiate established from failed non‐native freshwater fish in peninsular Florida. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Affiliation(s)
- Katelyn M. Lawson
- School of Forest, Fisheries, and Geomatics Sciences Program in Fisheries and Aquatic Sciences Tropical Aquaculture Laboratory University of Florida Ruskin Florida USA
| | - Jeffrey E. Hill
- School of Forest, Fisheries, and Geomatics Sciences Program in Fisheries and Aquatic Sciences Tropical Aquaculture Laboratory University of Florida Ruskin Florida USA
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21
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Moody EK, Sterup KL, Lozano-Vilano MDL. Morphological Evidence of Maladaptation to Introduced Predators in Gambusia senilis from its Extant Range in the Conchos Basin (Chihuahua, Mexico). WEST N AM NATURALIST 2021. [DOI: 10.3398/064.081.0306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Eric K. Moody
- Department of Biology, Middlebury College, Middlebury, VT 05753
| | | | - María de Lourdes Lozano-Vilano
- Private Consultant and Retired Professor of La Universidad Autónoma de Nuevo León, San Nicolas de los Garza, N.L., Mexico
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22
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Lawson KM, Hill JE. Predicting successful reproduction and establishment of non-native freshwater fish in peninsular Florida using life history traits. JOURNAL OF VERTEBRATE BIOLOGY 2021. [DOI: 10.25225/jvb.21041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Katelyn M. Lawson
- School of Forest, Fisheries and Geomatics Sciences, Program in Fisheries and Aquatic Sciences, Tropical Aquaculture Laboratory, University of Florida, Ruskin, Florida, USA; e-mail:
| | - Jeffrey E. Hill
- School of Forest, Fisheries and Geomatics Sciences, Program in Fisheries and Aquatic Sciences, Tropical Aquaculture Laboratory, University of Florida, Ruskin, Florida, USA; e-mail:
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23
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Shift towards Opportunistic Life-History of Sleeper in Response to Multi-Decadal Overfishing. WATER 2021. [DOI: 10.3390/w13182582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Understanding long-term changes in life-history traits is central to assessing and managing freshwater fisheries. In this study, we explored how life-history traits have shifted in association with long-term change in population status for a native fish species (freshwater sleeper, Odontobutis sinensis, a by-catch species of shrimp traps) in the middle Yangtze lakes, China. We assessed the life-history traits of the species from Honghu Lake in 2016, where abundance had been dramatically lower following about 60 years of high fishing pressure, and made comparisons to similar data from Liangzi Lake (1957), when fishing intensity was low and abundance was high, and Bao’an Lake (1993–1994), when about 10 years of intense exploitation had occurred and abundance had greatly declined. Modern Honghu Lake sleeper exhibit life-history traits that are substantially more opportunistic compared to both of the historical populations. Modern fish were larger at age-1 and had significantly faster growth rates, a higher prevalence of sexually mature individuals and increased fecundities. Fish from the historical samples were larger and had higher age class diversity and delayed sexual maturation. Combined, the data suggest that faster growth towards early sexual maturation and reduced body sizes are associated with destabilized populations and ecosystems. Similar life-history patterns are common in other declined fish populations under exploitation. Recovering historic fish life-history dynamics requires conservation management policies aimed at reducing harvest and improving floodplain habitats.
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24
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Fournier RJ, Bond NR, Magoulick DD. Modeling effects of disturbance across life history strategies of stream fishes. Oecologia 2021; 196:413-425. [PMID: 34018009 DOI: 10.1007/s00442-021-04941-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 05/09/2021] [Indexed: 11/25/2022]
Abstract
A central goal of population ecology is to establish linkages between life history strategy, disturbance, and population dynamics. Globally, disturbance events such as drought and invasive species have dramatically impacted stream fish populations and contributed to sharp declines in freshwater biodiversity. Here, we used RAMAS Metapop to construct stage-based demographic metapopulation models for stream fishes with periodic, opportunistic, and equilibrium life history strategies and assessed their responses to the effects of invasion (reduced carrying capacity), extended drought (reduced survival and fecundity), and the combined effects of both disturbances. Our models indicated that populations respond differentially to disturbance based on life history strategy. Equilibrium strategists were best able to deal with simulated invasion. Periodic strategists did well under lower levels of drought, whereas opportunistic strategists outperformed other life histories under extreme seasonal drought. When we modeled additive effects scenarios, these disturbances interacted synergistically, dramatically increasing terminal extinction risk for all three life history strategies. Modeling exercises that examine broad life history categories can help to answer fundamental ecological questions about the relationship between disturbance resilience and life history, as well as help managers to develop generalized conservation strategies when species-specific data are lacking. Our results indicate that life history strategy is a fundamental determinant of population trajectories, and that disturbances can interact synergistically to dramatically impact extinction outcomes.
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Affiliation(s)
- Robert J Fournier
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, Berkeley, CA, 94720, USA.
| | - Nick R Bond
- Centre for Freshwater Ecosystems, La Trobe University, Wodonga, VIC, Australia
| | - Daniel D Magoulick
- U.S. Geological Survey, Arkansas Cooperative Fish and Wildlife Research Unit, Department of Biological Sciences, University of Arkansas, Fayetteville, AR, 72701, USA
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25
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Brandt JE, Roberts JJ, Stricker CA, Rogers HA, Nease P, Schmidt TS. Temporal Influences on Selenium Partitioning, Trophic Transfer, and Exposure in a Major U.S. River. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:3645-3656. [PMID: 33617249 DOI: 10.1021/acs.est.0c06582] [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] [Indexed: 06/12/2023]
Abstract
Hydrologic and irrigation regimes mediate the timing of selenium (Se) mobilization to rivers, but the extent to which patterns in Se uptake and trophic transfer through recipient food webs reflect the temporal variation in Se delivery is unknown. We investigated Se mobilization, partitioning, and trophic transfer along approximately 60 river miles of the selenium-impaired segment of the Lower Gunnison River (Colorado, USA) during six sampling trips between June 2015 and October 2016. We found temporal patterns in Se partitioning and trophic transfer to be independent of those in dissolved Se concentrations and that the recipient food web sustained elevated Se concentrations from earlier periods of high Se mobilization. Using an ecosystem-scale Se accumulation model tailored to the Lower Gunnison River, we predicted that the endangered Razorback Sucker (Xyrauchen texanus) and Colorado Pikeminnow (Ptychocheilus lucius) achieve whole-body Se concentrations exceeding aquatic life protection criteria during periods of high runoff and irrigation activity (April-August) that coincide with susceptible phases of reproduction and early-life development. The results of this study challenge assumptions about Se trophodynamics in fast-flowing waters and introduce important considerations for the management of Se risks for biota in river ecosystems.
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Affiliation(s)
- Jessica E Brandt
- Department of Natural Resources and the Environment & Center for Environmental Sciences and Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
- Under Contract to the U.S. Geological Survey, Columbia Environmental Research Center, Columbia, Missouri 65201, United States
| | - James J Roberts
- U.S. Geological Survey, Great Lakes Science Center, Ann Arbor, Michigan 48105, United States
| | - Craig A Stricker
- U.S. Geological Survey, Fort Collins Science Center, Fort Collins, Colorado 80526, United States
| | - Holly A Rogers
- U.S. Geological Survey, Fort Collins Science Center, Fort Collins, Colorado 80526, United States
| | - Patricia Nease
- U.S. Geological Survey, Fort Collins Science Center, Fort Collins, Colorado 80526, United States
| | - Travis S Schmidt
- U.S. Geological Survey, Wyoming-Montana Water Science Center, Helena, Montana 59601, United States
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26
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Clutton EA, Alurralde G, Repolho T. Early developmental stages of native populations of Ciona intestinalis under increased temperature are affected by local habitat history. J Exp Biol 2021; 224:jeb233403. [PMID: 33472872 PMCID: PMC7938807 DOI: 10.1242/jeb.233403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 01/06/2021] [Indexed: 11/20/2022]
Abstract
Temperature modulates marine ectotherm physiology, influencing survival, abundance and species distribution. While native species could be susceptible to ocean warming, thermal tolerance might favour the spread of non-native species. Determining the success of invasive species in response to climate change is confounded by the cumulative, synergistic or antagonistic effects of environmental drivers, which vary at a geographical and temporal scale. Thus, an organism's acclimation or adaptive potential could play an important evolutionary role by enabling or conditioning species tolerance to stressful environmental conditions. We investigated developmental performance of early life stages of the ascidian Ciona intestinalis (derived from populations of anthropogenically impacted and control sites) to an extreme weather event (i.e. marine heatwave). Fertilization rate, embryo and larval development, settlement, metamorphosis success and juvenile heart rate were assessed as experimental endpoints. With the exception of fertilization and heart rates, temperature influenced all analysed endpoints. C. intestinalis derived from control sites were the most negatively affected by increased temperature conditions. By contrast, C. intestinalis from anthropogenically impacted sites showed a positive response to thermal stress, with a higher proportion of larvae development, settlement and metamorphosis success being observed under increased temperature conditions. No differences were observed for heart rates between sampled populations and experimental temperature conditions. Moreover, interaction between temperature and populations was statistically significant for embryo and larvae development, and metamorphosis. We hypothesize that selection resulting from anthropogenic forcing could shape stress resilience of species in their native range and subsequently confer advantageous traits underlying their invasive potential.
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Affiliation(s)
- Elizabeth A Clutton
- Institute of Marine Sciences, Faculty of Science and Health, University of Portsmouth, Eastney, Portsmouth PO4 9LY, UK
| | - Gaston Alurralde
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, Departamento Diversidad Biológica y Ecología, Ecología Marina, Av. Velez Sarsfield 299 (X5000JJC), Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Diversidad y Ecologıa Animal (IDEA), Av. Velez Sarsfield 299 (X5000JJC), Córdoba, Argentina
| | - Tiago Repolho
- MARE - Centro de Ciências do Mar e do Ambiente (MARE), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
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27
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Dibble KL, Yackulic CB, Kennedy TA, Bestgen KR, Schmidt JC. Water storage decisions will determine the distribution and persistence of imperiled river fishes. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2021; 31:e02279. [PMID: 33336387 DOI: 10.1002/eap.2279] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/18/2020] [Accepted: 11/24/2020] [Indexed: 05/14/2023]
Abstract
Managing the world's freshwater supply to meet societal and environmental needs in a changing climate is one of the biggest challenges for the 21st century. Dams provide water security; however, the allocation of dwindling water supply among reservoirs could exacerbate or ameliorate the effects of climate change on aquatic communities. Here, we show that the relative sensitivity of river thermal regimes to direct impacts of climate change and societal decisions concerning water storage vary substantially throughout a river basin. In the absence of interspecific interactions, future Colorado River temperatures would appear to benefit both endemic and nonnative fish species. However, endemic species are already declining or extirpated in locations where their ranges overlap with warmwater nonnatives and changes in water storage may lead to warming in some of the coolest portions of the river basin, facilitating further nonnative expansion. Integrating environmental considerations into ongoing water storage negotiations may lead to better resource outcomes than mitigating nonnative species impacts after the fact.
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Affiliation(s)
- Kimberly L Dibble
- Southwest Biological Science Center, Grand Canyon Monitoring and Research Center, U.S. Geological Survey, 2255 N. Gemini Drive, Flagstaff, Arizona, 86001, USA
| | - Charles B Yackulic
- Southwest Biological Science Center, Grand Canyon Monitoring and Research Center, U.S. Geological Survey, 2255 N. Gemini Drive, Flagstaff, Arizona, 86001, USA
| | - Theodore A Kennedy
- Southwest Biological Science Center, Grand Canyon Monitoring and Research Center, U.S. Geological Survey, 2255 N. Gemini Drive, Flagstaff, Arizona, 86001, USA
| | - Kevin R Bestgen
- Larval Fish Laboratory, Department of Fish, Wildlife, and Conservation Biology, Colorado State University, 1474 Campus Delivery, Fort Collins, Colorado, 80523, USA
| | - John C Schmidt
- Department of Watershed Sciences, Utah State University, Logan, Utah, 84322-5210, USA
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28
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Mao Z, Gu X, Cao Y, Luo J, Zeng Q, Chen H, Jeppesen E. How does fish functional diversity respond to environmental changes in two large shallow lakes? THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 753:142158. [PMID: 33207432 DOI: 10.1016/j.scitotenv.2020.142158] [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: 05/21/2020] [Revised: 08/29/2020] [Accepted: 08/31/2020] [Indexed: 06/11/2023]
Abstract
Increasing threats to freshwater biodiversity from environmental changes and human activities highlight the need to understand the linkages between biological communities and their environment. Species richness has dominated our view of biodiversity patterns for over a century, but it is increasingly recognized that a trait-based, causal view of biodiversity may be more meaningful than species richness or taxonomic composition. This rationale has led to the exploration of functional diversity (FD) indices to quantify variation in traits that mediate species' contributions to ecosystem processes. In the present study, we quantified FD of fish communities in two large shallow lakes in China with different disturbances level using long-term monitoring data sets. Random-Forests regression was applied to examine how changes in FD were related to natural and human-related environmental variables. Fish stocking, water quality, climate, and hydrological changes were identified as the most important predictors of FD long-term trends. However, the major drivers of FD differed between two lakes, i.e., human activities explaining a greater proportion of FD variance in Lake Taihu, whereas physicochemical environmental factors prominently explained FD variance in Lake Hulun. Moreover, FD indices appeared more sensitive than species richness to multiple disturbances, suggesting that functional traits can be used to detect ecosystem alterations. This study offers insight into how FD can improve our understanding of the associations between fish communities and environmental changes of relevance also for lake and fisheries management.
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Affiliation(s)
- Zhigang Mao
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Xiaohong Gu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Yong Cao
- Illinois Natural History Survey, Prairie Research Institute, University of Illinois, Champaign, IL 61820, USA
| | - Juhua Luo
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Qingfei Zeng
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Huihui Chen
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Erik Jeppesen
- Department of Bioscience, Aarhus University, Silkeborg 8600, Denmark; Sino-Danish Centre for Education and Research, Beijing 100049, China; Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara 06800, Turkey
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Introduced, invaded and forgotten: allopatric and sympatric native snow trout life-histories indicate brown trout invasion effects in the Himalayan hinterlands. Biol Invasions 2021. [DOI: 10.1007/s10530-020-02454-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ferraz JD, Casimiro ACR, Garcia DAZ, Pereira AD, Jarduli LR, Almeida FSD, Orsi ML. Taxonomic loss and functional reduction over time in the ichthyofauna of the Taquaruçu Reservoir, lower Paranapanema River, Southern Brazil. NEOTROPICAL ICHTHYOLOGY 2021. [DOI: 10.1590/1982-0224-2020-0143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract We evaluated the fish composition and ecological attributes of the ichthyofauna collected in a limnological zone of the Taquaruçu Reservoir, lower Paranapanema River. Information about the fish community was updated when compared to the previous study (2006). Non-metric multidimensional scaling (NMDS) showed differences in species composition between periods and community weighted means (CWMs) exhibited changes in functional composition over time. Four functional indices were used in the principal coordinate analysis (PcoA) to measure changes in the functional space of species, whereas functional β-diversity inspected differences in the traits composition between the periods. 1,203 individuals were sampled of 43 species, being 16 non-native and 14 new records. Compared to 2006, 27 species were absent, most of them native to Loricariidae and Anostomidae, while Curimatidae and Pimelodidae decreased in abundance. Functional indexes showed a reduction in functional diversity, whereas new species records exhibited functional redundancy. It might have occurred a simplification of the fish community over time, excluding the migratory and specialists species such as the herbivores and detritivores. Accordingly, we concluded that the ichthyofauna of the Taquaruçu Reservoir might have been undergoing a process towards biotic homogenization.
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Affiliation(s)
- João D. Ferraz
- Universidade Estadual de Londrina, Brazil; Universidade Estadual de Londrina, Brazil
| | | | | | | | - Lucas R. Jarduli
- Universidade Estadual de Londrina, Brazil; Centro Universitário das Faculdades Integradas de Ourinhos, Brazil
| | | | - Mário L. Orsi
- Universidade Estadual de Londrina, Brazil; Universidade Estadual de Londrina, Brazil
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Trophic Niches, Trophic Positions, and Niche Overlaps between Non-Native and Native Fish Species in a Subalpine Lake. WATER 2020. [DOI: 10.3390/w12123475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the last century, Italian freshwater ecosystems have been invaded by several non-native fish species. In the subalpine Lake Mergozzo (northern Italy), several recently introduced non-native species dramatically expanded their populations. We used carbon and nitrogen stable isotopes to describe the isotopic niches and trophic positions of native and non-native fish species in Lake Mergozzo. We evaluated their trophic niches, trophic diversity, trophic redundancy and trophic evenness utilizing isotopic niche metrics, and estimated asymmetrical niche overlaps. The trophic traits of non-native fish species and Perca fluviatilis clearly define them as trophic generalists, in terms of among-individual variability of their isotopic niches. The historical increase in abundance of fish non-native species in this lake, their dominance by numbers and biomass within the assemblage, and their broad asymmetrical niche overlaps suggest that their higher degree of trophic generalism might have been one of the key factors that have promoted the invasion of the recipient community.
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Pyšek P, Bacher S, Kühn I, Novoa A, Catford JA, Hulme PE, Pergl J, Richardson DM, Wilson JRU, Blackburn TM. MAcroecological Framework for Invasive Aliens (MAFIA): disentangling large-scale context dependence in biological invasions. NEOBIOTA 2020. [DOI: 10.3897/neobiota.62.52787] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Macroecology is the study of patterns, and the processes that determine those patterns, in the distribution and abundance of organisms at large scales, whether they be spatial (from hundreds of kilometres to global), temporal (from decades to centuries), and organismal (numbers of species or higher taxa). In the context of invasion ecology, macroecological studies include, for example, analyses of the richness, diversity, distribution, and abundance of alien species in regional floras and faunas, spatio-temporal dynamics of alien species across regions, and cross-taxonomic analyses of species traits among comparable native and alien species pools. However, macroecological studies aiming to explain and predict plant and animal naturalisations and invasions, and the resulting impacts, have, to date, rarely considered the joint effects of species traits, environment, and socioeconomic characteristics. To address this, we present the MAcroecological Framework for Invasive Aliens (MAFIA). The MAFIA explains the invasion phenomenon using three interacting classes of factors – alien species traits, location characteristics, and factors related to introduction events – and explicitly maps these interactions onto the invasion sequence from transport to naturalisation to invasion. The framework therefore helps both to identify how anthropogenic effects interact with species traits and environmental characteristics to determine observed patterns in alien distribution, abundance, and richness; and to clarify why neglecting anthropogenic effects can generate spurious conclusions. Event-related factors include propagule pressure, colonisation pressure, and residence time that are important for mediating the outcome of invasion processes. However, because of context dependence, they can bias analyses, for example those that seek to elucidate the role of alien species traits. In the same vein, failure to recognise and explicitly incorporate interactions among the main factors impedes our understanding of which macroecological invasion patterns are shaped by the environment, and of the importance of interactions between the species and their environment. The MAFIA is based largely on insights from studies of plants and birds, but we believe it can be applied to all taxa, and hope that it will stimulate comparative research on other groups and environments. By making the biases in macroecological analyses of biological invasions explicit, the MAFIA offers an opportunity to guide assessments of the context dependence of invasions at broad geographical scales.
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Gozlan RE, Záhorská E, Cherif E, Asaeda T, Britton JR, Chang C, Hong T, Miranda R, Musil J, Povz M, Tarkan AS, Tricarico E, Trichkova T, Verreycken H, Weiperth A, Witkowski A, Zamora L, Zweimueller I, Zhao Y, Esmaeili HR, Combe M. Native drivers of fish life history traits are lost during the invasion process. Ecol Evol 2020; 10:8623-8633. [PMID: 32884645 PMCID: PMC7452779 DOI: 10.1002/ece3.6521] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/06/2020] [Accepted: 03/09/2020] [Indexed: 01/31/2023] Open
Abstract
Rapid adaptation to global change can counter vulnerability of species to population declines and extinction. Theoretically, under such circumstances both genetic variation and phenotypic plasticity can maintain population fitness, but empirical support for this is currently limited. Here, we aim to characterize the role of environmental and genetic diversity, and their prior evolutionary history (via haplogroup profiles) in shaping patterns of life history traits during biological invasion. Data were derived from both genetic and life history traits including a morphological analysis of 29 native and invasive populations of topmouth gudgeon Pseudorasbora parva coupled with climatic variables from each location. General additive models were constructed to explain distribution of somatic growth rate (SGR) data across native and invasive ranges, with model selection performed using Akaike's information criteria. Genetic and environmental drivers that structured the life history of populations in their native range were less influential in their invasive populations. For some vertebrates at least, fitness-related trait shifts do not seem to be dependent on the level of genetic diversity or haplogroup makeup of the initial introduced propagule, nor of the availability of local environmental conditions being similar to those experienced in their native range. As long as local conditions are not beyond the species physiological threshold, its local establishment and invasive potential are likely to be determined by local drivers, such as density-dependent effects linked to resource availability or to local biotic resistance.
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Affiliation(s)
| | - Eva Záhorská
- Faculty of Natural SciencesDepartment of EcologyComenius UniversityBratislavaSlovakia
| | - Emira Cherif
- ISEM UMR226CNRSIRDEPHEUniversité de MontpellierMontpellierFrance
| | - Takashi Asaeda
- Department of Environmental ScienceSaitama UniversitySaitamaJapan
| | | | - Cha‐Ho Chang
- Department of Biological Science and TechnologyNational Chiao Tung UniversityHsinchuTaiwan ROC
| | - To Hong
- Department of Agriculture and AquacultureTra Vinh UniversityTra VinhVietnam
| | - Rafael Miranda
- Department of Environmental BiologySchool of SciencesUniversity of NavarraPamplonaSpain
| | - Jiří Musil
- Department of Aquatic EcologyT.G.Masaryk. Water Research InstitutePrague 6Czech Republic
| | | | | | | | - Teodora Trichkova
- Institute of Biodiversity and Ecosystem ResearchBulgarian Academy of SciencesSofiaBulgaria
| | - Hugo Verreycken
- Research Institute for Nature and Forest (INBO) DwersbosLinkebeekBelgium
| | - Andrej Weiperth
- MTA Centre for Ecological ResearchDanube Research InstituteBudapestHungary
| | | | - Lluis Zamora
- Faculty of SciencesInstitute of Aquatic EcologyUniversity of GironaGironaSpain
| | - Irene Zweimueller
- Faculty of Life SciencesDepartment of Freshwater EcologyUniversity of ViennaViennaAustria
| | - Yahui Zhao
- Institute of ZoologyChinese Academy of SciencesBeijingChina
| | | | - Marine Combe
- ISEM UMR226CNRSIRDEPHEUniversité de MontpellierMontpellierFrance
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Zhang C, Fujiwara M, Pawluk M, Liu H, Cao W, Gao X. Changes in taxonomic and functional diversity of fish communities after catastrophic habitat alteration caused by construction of Three Gorges Dam. Ecol Evol 2020; 10:5829-5839. [PMID: 32607193 PMCID: PMC7319164 DOI: 10.1002/ece3.6320] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 04/04/2020] [Accepted: 04/06/2020] [Indexed: 11/25/2022] Open
Abstract
Habitat alterations that result from anthropogenic disturbance impact both the abiotic and biotic conditions of ecosystems, causing changes in biodiversity in many parts of the world. Recently, the use of functional diversity has been suggested as an approach to better evaluate the effects of such disturbance on particular communities. Here, we investigated the temporal changes in species and functional diversities of fish communities in the downstream area of the Three Gorges Dam (TGD) before, during, and after impoundment. We found two regime shifts in the fish community in 2004 and 2013 following impoundment. Although taxonomic diversity declined sharply at the first regime shift, it increased at the second shift. On the other hand, functional diversity declined throughout the same period, indicating the loss of functional diversity despite increased species diversity. Our analysis also showed that the fish communities shifted from under-dispersion to over-dispersion due to both a decrease in the relative abundance of migratory fish and an increase in the number of fish adapted to the new hydrologic conditions. Our results indicated that the impacts of dams on downstream fish communities may change over time. Interactions between species may become more important when the environment is stable.
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Affiliation(s)
- Chen Zhang
- Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of SciencesInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
| | - Masami Fujiwara
- Department of Ecology and Conservation BiologyTexas A&M UniversityCollege StationTXUSA
| | - Michaela Pawluk
- Department of Wildlife and Fisheries SciencesTexas A&M UniversityCollege StationTXUSA
| | - Huanzhang Liu
- Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of SciencesInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Wenxuan Cao
- Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of SciencesInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Xin Gao
- Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of SciencesInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
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Mathers KL, White JC, Fornaroli R, Chadd R. Flow regimes control the establishment of invasive crayfish and alter their effects on lotic macroinvertebrate communities. J Appl Ecol 2020. [DOI: 10.1111/1365-2664.13584] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kate L. Mathers
- Department of Surface Waters Research and Management Eawag: Swiss Federal Institute of Aquatic Science and Technology Kastanienbaum Switzerland
| | - James C. White
- Department of Biosciences College of Science Swansea University Swansea UK
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36
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Tucker EK, Zurliene ME, Suski CD, Nowak RA. Gonad development and reproductive hormones of invasive silver carp (Hypophthalmichthys molitrix) in the Illinois River. Biol Reprod 2020; 102:647-659. [PMID: 31711164 DOI: 10.1093/biolre/ioz207] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 09/30/2019] [Accepted: 10/28/2019] [Indexed: 02/07/2023] Open
Abstract
Reproduction is a major component of an animal's life history strategy. Species with plasticity in their reproductive biology are likely to be successful as an invasive species, as they can adapt their reproductive effort during various phases of a biological invasion. Silver carp (Hypophthalmicthys molitrix), an invasive cyprinid in North America, display wide variation in reproductive strategies across both their native and introduced ranges, though the specifics of silver carp reproduction in the Illinois River have not been established. We assessed reproductive status using histological and endocrinological methods in silver carp between April and October 2018, with additional histological data from August to October 2017. Here, we show that female silver carp are batch spawners with asynchronous, indeterminate oocyte recruitment, while male silver carp utilize a determinate pattern of spermatogenesis which ceases in the early summer. High plasma testosterone levels in females could be responsible for regulating oocyte development. Our results suggest that silver carp have high spawning activity in the early summer (May-June), but outside of the peak spawning period, female silver carp can maintain spawning-capable status by adjusting rates of gametogenesis and atresia in response to environmental conditions, while males regress their gonads as early as July. The results of this study are compared to reports of silver carp reproduction in other North American rivers as well as in Asia.
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Affiliation(s)
- Emily K Tucker
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Department of Natural Resources and Environmental Science, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Megan E Zurliene
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Cory D Suski
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Romana A Nowak
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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Hitt NP, Rogers KM, Kelly ZA, Henesy J, Mullican JE. Fish life history trends indicate increasing flow stochasticity in an unregulated river. Ecosphere 2020. [DOI: 10.1002/ecs2.3026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Nathaniel P. Hitt
- U.S. Geological Survey Leetown Science Center 11649 Leetown Road Kearneysville West Virginia 25430 USA
| | - Karli M. Rogers
- U.S. Geological Survey Leetown Science Center 11649 Leetown Road Kearneysville West Virginia 25430 USA
| | - Zachary A. Kelly
- U.S. Geological Survey Leetown Science Center 11649 Leetown Road Kearneysville West Virginia 25430 USA
| | - Josh Henesy
- Freshwater Fisheries Program Maryland Department of Natural Resources 20901 Fish Hatchery Road Hagerstown Maryland 21740 USA
| | - John E. Mullican
- Freshwater Fisheries Program Maryland Department of Natural Resources 20901 Fish Hatchery Road Hagerstown Maryland 21740 USA
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Vieira TB, Tejerina-Garro FL. Relationships Between Environmental Conditions And Fish Assemblages In Tropical Savanna Headwater Streams. Sci Rep 2020; 10:2174. [PMID: 32034267 PMCID: PMC7005862 DOI: 10.1038/s41598-020-59207-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/27/2020] [Indexed: 11/30/2022] Open
Abstract
Riparian vegetation plays an important role in providing energy to small watercourses and maintaining ecological processes through organic matter input and together with hydrological and geomorphological watercourse characteristics influence on fish assemblages. The goal of this paper was partitioning and quantifying the influence of riparian zone (type of riverbank substrate, bank slope, type of riparian vegetation cover and percentage of riparian vegetation cover on the main channel), physical habitat (stream channel width and depth, type of substrate and aquatic habitat in channel, water velocity and organic matter), water quality (turbidity, temperature, conductivity, pH, dissolved oxygen and chlorophyll concentration) and spatial variables (linear distances between sampled points) on fish assemblages (richness and abundance per species) in headwater streams of the Upper Paraná River basin, Central Brazil. For this purpose, it was performed a variation partitioning analysis between riparian, physical habitat, water and spatial variables sets and a Redundancy Analysis to quantify the influence of variables on the fish assemblages. Only the physical habitat and water quality variables influenced the fish assemblages (richness and abundance per species).
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Affiliation(s)
- Thiago Bernardi Vieira
- Laboratório de Ictiologia de Altamira - LIA, Universidade Federal do Pará (UFPA), Campus Altamira. Rua Coronel José Porfírio 2515, São Sebastião, Altamira, PA, CEP 68372-040, Brazil.
- Programa de Pós-Graduação em Biodiversidade e Conservação - PPGBC, Universidade Federal do Pará (UFPA), Campus Altamira. Rua Coronel José Porfírio 2515, São Sebastião, Altamira, PA, CEP 68372-040, Brazil.
| | - Francisco Leonardo Tejerina-Garro
- Laboratório de Biodiversidade, Programa de Mestrado em Sociedade, Tecnologia e Meio Ambiente, UniEVANGÉLICA, Av. Universitária km. 3,5, Cidade Universitária, Anápolis, GO, CEP 75083-515, Brazil
- Centro de Biologia Aquática, Escola de Ciências Agrárias e Biológicas, Pontifícia Universidade Católica de Goiás - Campus II, Av. Engler s/n, Jardim Mariliza, Goiânia, GO, CEP 74605-010, Brazil
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Day NK, Schmidt TS, Roberts JJ, Osmundson BC, Willacker JJ, Eagles-Smith CA. Mercury and selenium concentrations in fishes of the Upper Colorado River Basin, southwestern United States: A retrospective assessment. PLoS One 2020; 15:e0226824. [PMID: 31929573 PMCID: PMC6957192 DOI: 10.1371/journal.pone.0226824] [Citation(s) in RCA: 4] [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: 07/26/2019] [Accepted: 12/04/2019] [Indexed: 11/18/2022] Open
Abstract
Mercury (Hg) and selenium (Se) are contaminants of concern for fish in the Upper Colorado River Basin (UCRB). We explored Hg and Se in fish tissues (2,324 individuals) collected over 50 years (1962-2011) from the UCRB. Samples include native and non-native fish collected from lotic waterbodies spanning 7 major tributaries to the Colorado River. There was little variation of total mercury (THg) in fish assemblages basin-wide and only 13% (272/1959) of individual fish samples exceeded the fish health benchmark (0.27 μg THg/g ww). Most THg exceedances were observed in the White-Yampa tributary whereas the San Juan had the lowest mean THg concentration. Risks associated with THg are species specific with exceedances dominated by Colorado Pikeminnow (mean = 0.38 and standard error ± 0.08 μg THg/g ww) and Roundtail Chub (0.24 ± 0.06 μg THg/g ww). For Se, 48% (827/1720) of all individuals exceeded the fish health benchmark (5.1 μg Se/g dw). The Gunnison river had the most individual exceedances of the Se benchmark (74%) whereas the Dirty Devil had the fewest. We identified that species of management concern accumulate THg and Se to levels above risk thresholds and that fishes of the White-Yampa (THg) and Gunnison (Se) rivers are at the greatest risk in the UCRB.
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Affiliation(s)
- Natalie K. Day
- U.S. Geological Survey, Southwest Biological Science Center, Moab, Utah, United States of America
| | - Travis S. Schmidt
- U.S. Geological Survey, Colorado Water Science Center, Fort Collins, Colorado, United States of America
| | - James J. Roberts
- U.S. Geological Survey, Colorado Water Science Center, Fort Collins, Colorado, United States of America
| | - Barbara C. Osmundson
- U.S. Fish and Wildlife Service, Grand Junction, Colorado, United States of America
| | - James J. Willacker
- U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, Corvallis, Oregon, United States of America
| | - Collin A. Eagles-Smith
- U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, Corvallis, Oregon, United States of America
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Mbaru EK, Graham NAJ, McClanahan TR, Cinner JE. Functional traits illuminate the selective impacts of different fishing gears on coral reefs. J Appl Ecol 2019. [DOI: 10.1111/1365-2664.13547] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Emmanuel K. Mbaru
- ARC Centre of Excellence for Coral Reef Studies James Cook University Townsville Qld Australia
- Kenya Marine and Fisheries Research Institute (KMFRI) Mombasa Kenya
| | | | | | - Joshua E. Cinner
- ARC Centre of Excellence for Coral Reef Studies James Cook University Townsville Qld Australia
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Garcia DAZ, Vidotto-Magnoni AP, Orsi ML. Características reprodutivas de peixes invasores no rio Paranapanema, bacia do alto rio Paraná, sul do Brasil. NEOTROPICAL BIOLOGY AND CONSERVATION 2019. [DOI: 10.3897/neotropical.14.e49079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Estudos sobre biologia reprodutiva podem fornecer explicações sobre o sucesso na colonização de novas áreas, dado que características biológicas associadas às espécies invasoras podem conferir vantagem na invasão. Objetivamos avaliar variações de características reprodutivas de peixes invasores em lagoas e rios livres de barragens. Foram estudadas populações deSerrasalmus marginatus,Loricariichthys platymetopon,Ossancora eigenmanni,Auchenipterus osteomystaxeTrachelyopterus galeatusem habitat lêntico (Lagoas 1 e 2) e lótico (rios Pirapozinho e Anhumas) durante as estações seca e chuvosa. Fêmeas predominaram na maioria das populações (χ2, α < 0,05). Fêmeas deL. platymetoponeT. galeatusapresentaram maior índice gonadossomático durante a estação chuvosa no rio Anhumas e na Lagoa 2, respectivamente (teste de Mann-Whitney, α < 0,05). Populações deS. marginatus,L. platymetopon,O. eigenmannieT. galeatusapresentaram atividade reprodutiva muito intensa na Lagoa 1.Trachelyopterus galeatusapresentou atividade reprodutiva muito intensa nas duas lagoas e no rio Pirapozinho. Enquanto algumas espécies exibem alto investimento reprodutivo, independentemente do tipo de habitat (T. galeatus), outras podem apresentar variações (S. marginatuseL. platymetopon). Fêmeas em maiores razões sexuais, alto investimento reprodutivo, cuidado parental, fertilização interna e desova parcelada podem ser características que favorecem o estabelecimento na área receptora.Serrasalmus marginatuseL. platymetoponapresentam estratégia de história de vida intermediária Equíbrio/Sazonal e Equilíbrio, respectivamente, enquantoA. osteomystaxeT. galeatusapresentam estratégia Sazonal. Por apresentarem indivíduos que se dispersam, sobrevivem e se reproduzem em diferentes tipos de habitat, essas espécies possuem extensa área de ocorrência e invadiram com sucesso a bacia do alto rio Paraná. Portanto, são necessárias ações que controlem as populações e minimizem seus impactos.
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Jia Y, Kennard MJ, Liu Y, Sui X, Chen Y, Li K, Wang G, Chen Y. Understanding invasion success of Pseudorasbora parva in the Qinghai-Tibetan Plateau: Insights from life-history and environmental filters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 694:133739. [PMID: 31756834 DOI: 10.1016/j.scitotenv.2019.133739] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/20/2019] [Accepted: 08/01/2019] [Indexed: 06/10/2023]
Abstract
Understanding mechanisms of fish invasion success is crucial to controlling existing invasions and preventing potential future spread. Despite considerable advances in explaining successful fish invasions, little is known about how non-native fish successfully invade alpine freshwater ecosystems. Here, we explore the role of fish life history and environmental factors in contributing to invasion success of Pseudorasbora parva on the Qinghai-Tibet Plateau. We compared life history trait differences between native populations in lowland China with introduced populations in lowland Europe and the high elevation Qinghai-Tibet Plateau. Linear mixed-effects models were used to analyse life-history trait variation across elevation gradients. A random forest model was developed to identify the key environmental filters influencing P. parva invasion success. Life history characteristics differed substantially between native and introduced populations. Compared with native Chinese populations, introduced populations in lowland Europe had smaller body size, higher fecundity, smaller oocytes and earlier maturation. Introduced populations in the Qinghai-Tibet Plateau had smaller body size, lower fecundity, smaller oocytes and later maturation compared with native populations. 1-Year-Length and fecundity in all age classes of females significantly increased with increasing elevation. 2-Year-Length and 3-Year-Length of male significantly increased while maximal longevity and length at first maturity were significantly decreased with the elevation gradient. Habitat type, annual mean temperature, elevation, annual precipitation and precipitation seasonality, were the 5 most important predictors for the occurrence of the P. parva. Our study indicates that invasive P. parva adopt different life history strategies on the plateau compared with invasive populations at low elevations, highlighting that more studies are required for a better understanding of biological invasion under extreme conditions. Considering the ongoing hydrologic alteration and climate change, our study also highlighted that P. parva may expand their distribution range in the future on the Qinghai-Tibet Plateau.
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Affiliation(s)
- Yintao Jia
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Mark J Kennard
- Australian Rivers Institute, Griffith University, Brisbane, Queensland, Australia
| | - Yuhan Liu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyun Sui
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Yiyu Chen
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Kemao Li
- Qinghai Provincial Fishery Environmental Monitoring Center, Xining, China
| | - Guojie Wang
- Qinghai Provincial Fishery Environmental Monitoring Center, Xining, China
| | - Yifeng Chen
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
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Pyron M, Mims MC, Minder MM, Shields RC, Chodkowski N, Artz CC. Long-term fish assemblages of the Ohio River: Altered trophic and life history strategies with hydrologic alterations and land use modifications. PLoS One 2019; 14:e0211848. [PMID: 31017895 PMCID: PMC6481763 DOI: 10.1371/journal.pone.0211848] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 03/22/2019] [Indexed: 11/19/2022] Open
Abstract
Long-term monitoring of species assemblages provides a unique opportunity to test hypotheses regarding environmentally induced directional trajectories of freshwater species assemblages. We used 57 years of lockchamber fish rotenone and boat electrofishing survey data (1957-2014) collected by the Ohio River Valley Water Sanitation Commission (ORSANCO) to test for directional trajectories in taxonomy, trophic classifications, and life history strategies of freshwater fish assemblages in the Ohio River Basin. We found significant changes in taxonomic and trophic composition of freshwater fishes in the Ohio River Basin. Annual species richness varied from 31 to 90 species and generally increased with year. Temporal trajectories were present for taxonomic and trophic assemblages. Assemblage structure based on taxonomy was correlated with land use change (decrease in agriculture and increase in forest). Taxonomic assemblage structure was also correlated with altered hydrology variables of increased minimum discharge, decreased fall rate, and increased rise rate. Trophic composition of fish catch correlated with land use change (decrease in agriculture and increase in forest) and altered hydrology. Altered hydrology of increased minimum discharge, increased fall discharge, decreased base flows, and increased number of high pulse events was correlated with increased counts of herbivore-detritivores and decreased counts of piscivores and planktivores. We did not find directional changes in life history composition. We hypothesized a shift occurred from benthic to phytoplankton production throughout the basin that may have decreased secondary production of benthic invertebrates. This may also be responsible for lower trophic position of invertivore and piscivore fishes observed in other studies.
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Affiliation(s)
- Mark Pyron
- Department of Biology, Ball State University, Muncie, Indiana, United States of America
- * E-mail:
| | - Meryl C. Mims
- Department of Biological Sciences, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Mario M. Minder
- Department of Biology, Ball State University, Muncie, Indiana, United States of America
| | - Robert C. Shields
- Department of Biology, Ball State University, Muncie, Indiana, United States of America
| | - Nicole Chodkowski
- Department of Biology, Ball State University, Muncie, Indiana, United States of America
| | - Caleb C. Artz
- Department of Biology, Ball State University, Muncie, Indiana, United States of America
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Increasing drought favors nonnative fishes in a dryland river: evidence from a multispecies demographic model. Ecosphere 2019. [DOI: 10.1002/ecs2.2681] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Regime shift in fish assemblage structure in the Yangtze River following construction of the Three Gorges Dam. Sci Rep 2019; 9:4212. [PMID: 30862788 PMCID: PMC6414653 DOI: 10.1038/s41598-019-38993-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 12/31/2018] [Indexed: 11/29/2022] Open
Abstract
Dams have well-documented ecological impacts on downstream river segments; however, long-term impacts of river impoundment have rarely been investigated in upstream reaches. Using data from long-term standardized surveys, we analyzed temporal changes in fish assemblages in the Yangtze River upstream of the Three Gorges Dam (TGD) before, during and after its construction. Our analysis indicated fish assemblage regime shifts in the two closer reaches in 2008, in accordance with the filling to 172.5 m in 2008; and in the other reach, farthest from the TGD, in 2011, indicating timing of the effects being related to distance. These shifts were evident in relative abundance of native fish species rather than non-native species and have altered community structures and functional groups. Relative abundance of the lotic guilds declined in the two closer reaches, but increased in the farthest. Invertivores declined, but piscivores and opportunistic life-history strategists increased in all reaches. We conclude that construction of TGD had led to significant changes in species distributions influenced by species functional traits. Our findings emphasize the need for long-term monitoring of fish assemblages before and after dam construction in order to understand ecological responses to hydrological changes for effective resource management in regulated rivers.
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Gunselman SR, Spruell P. Variation in Life History May Allow Colonization of Diverse Habitats in an Invasive Fish Species. COPEIA 2019. [DOI: 10.1643/ci-18-072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Samuel R. Gunselman
- Department of Biology, Eastern Washington University, 258 Science Building, Cheney, Washington 99004; (SRG) samgunselman@ gmail.com; and (PS) . Send reprint requests to SRG
| | - Paul Spruell
- Department of Biology, Eastern Washington University, 258 Science Building, Cheney, Washington 99004; (SRG) samgunselman@ gmail.com; and (PS) . Send reprint requests to SRG
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Behn KE, Baxter CV. The trophic ecology of a desert river fish assemblage: influence of season and hydrologic variability. Ecosphere 2019. [DOI: 10.1002/ecs2.2583] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Kathrine E. Behn
- Department of Biological Sciences Idaho State University Pocatello Idaho 83209 USA
| | - Colden V. Baxter
- Department of Biological Sciences Idaho State University Pocatello Idaho 83209 USA
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Trophic plasticity and the invasion of a renowned piscivore: a diet synthesis of northern pike (Esox lucius) from the native and introduced ranges in Alaska, U.S.A. Biol Invasions 2019. [DOI: 10.1007/s10530-018-1909-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Vincenzi S, Crivelli AJ, Jeseňsek D, Campbell E, Garza JC. Effects of species invasion on population dynamics, vital rates and life histories of the native species. POPUL ECOL 2018. [DOI: 10.1002/1438-390x.1004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Simone Vincenzi
- Institute of Marine Sciences; University of California, Santa Cruz; Santa Cruz California
- Fisheries Ecology Division, Southwest Fisheries Science Center; National Marine Fisheries Service; Santa Cruz California
| | | | | | - Ellen Campbell
- Institute of Marine Sciences; University of California, Santa Cruz; Santa Cruz California
- Fisheries Ecology Division, Southwest Fisheries Science Center; National Marine Fisheries Service; Santa Cruz California
| | - John C. Garza
- Institute of Marine Sciences; University of California, Santa Cruz; Santa Cruz California
- Fisheries Ecology Division, Southwest Fisheries Science Center; National Marine Fisheries Service; Santa Cruz California
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Zhao T, Villéger S, Cucherousset J. Accounting for intraspecific diversity when examining relationships between non-native species and functional diversity. Oecologia 2018; 189:171-183. [PMID: 30470889 DOI: 10.1007/s00442-018-4311-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 11/19/2018] [Indexed: 11/29/2022]
Abstract
Quantifying changes in functional diversity, the facet of biodiversity accounting for the biological features of organisms, has been advocated as one of the most integrative ways to unravel how communities are affected by human-induced perturbations. The present study assessed how functional diversity patterns varied among communities that differed in the degree to which non-native species dominated the community in temperate lake fish communities and whether accounting for intraspecific functional variability could provide a better understanding of the variation of functional diversity across communities. Four functional diversity indices were computed for 18 temperate lake fish communities along a gradient of non-native fish dominance using morphological functional traits assessed for each life-stage within each species. First, we showed that intraspecific variability in functional traits was high and comparable to interspecific variability. Second, we found that non-native fish were functionally distinct from native fish. Finally, we demonstrated that there was a significant relationship between functional diversity and the degree to which non-native fish currently dominated the community and that this association could be better detected when accounting for intraspecific functional variability. These findings highlighted the importance of incorporating intraspecific variability to better quantify the variation of functional diversity patterns in communities facing human-induced perturbations.
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Affiliation(s)
- T Zhao
- Laboratoire Evolution et Diversité Biologique (EDB UMR 5174), Université de Toulouse, CNRS, ENFA, UPS, 118 route de Narbonne, 31062, Toulouse, France.
| | - S Villéger
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - J Cucherousset
- Laboratoire Evolution et Diversité Biologique (EDB UMR 5174), Université de Toulouse, CNRS, ENFA, UPS, 118 route de Narbonne, 31062, Toulouse, France
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