1
|
Medo A, Ohte N, Doi H, Kamdee K, Koba K, Arai N, Mitsunaga Y, Kume M, Kojima D, Nose T, Yokoyama A, Viputhanumas T, Mitamura H. Trophic niche partitioning and intraspecific variation in food resource use in the genus Pangasianodon in a reservoir revealed by stable isotope analysis of multiple tissues. JOURNAL OF FISH BIOLOGY 2024. [PMID: 38880940 DOI: 10.1111/jfb.15842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/20/2024] [Accepted: 05/28/2024] [Indexed: 06/18/2024]
Abstract
Understanding the mechanism by which non-native fish species integrate into native communities is crucial for evaluating the possibility of their establishment success. The genus Pangasianodon, comprising Pangasianodon gigas and Pangasianodon hypophthalmus, has been introduced into reservoirs, which are non-native habitats, for fishery stock enhancement. P. gigas and P. hypophthalmus often successfully establish and co-occur in several Thai reservoirs, but there is little information on differences in food resource use between the two species. To investigate the trophic niche width of P. gigas and P. hypophthalmus in a Thai reservoir, we conducted stable carbon and nitrogen ratio (δ13C and δ15N) analyses. We examined the degree of individual specialization in both species using the δ13C and δ15N values of muscle and liver tissues, which provides long- and short-term diet information. The isotopic niches did not overlap between P. gigas and P. hypophthalmus. The δ15N value of P. gigas was significantly higher than that of P. hypophthalmus, whereas the δ13C value did not significantly differ between the two species. The isotopic niche sizes were larger in P. hypophthalmus than in P. gigas. Individual specialization was observed in P. hypophthalmus but not in P. gigas, indicating that intraspecific variation in food resource use was larger in P. hypophthalmus compared to P. gigas. These findings suggest that trophic niche partitioning was one of the factors facilitating the establishment success of P. gigas and P. hypophthalmus in a reservoir, but the establishment process may differ between the two species.
Collapse
Affiliation(s)
- Ayano Medo
- Graduate School of Informatics, Kyoto University, Kyoto, Japan
- Center for Ecological Research, Kyoto University, Otsu, Japan
| | - Nobuhito Ohte
- Graduate School of Informatics, Kyoto University, Kyoto, Japan
| | - Hideyuki Doi
- Graduate School of Informatics, Kyoto University, Kyoto, Japan
| | | | - Keisuke Koba
- Center for Ecological Research, Kyoto University, Otsu, Japan
| | - Nobuaki Arai
- Field Science Education and Research Center, Kyoto University, Kyoto, Japan
| | | | - Manabu Kume
- Field Science Education and Research Center, Kyoto University, Kyoto, Japan
| | - Daichi Kojima
- Graduate School of Informatics, Kyoto University, Kyoto, Japan
| | - Takashi Nose
- Graduate School of Informatics, Kyoto University, Kyoto, Japan
| | - Ayako Yokoyama
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Thavee Viputhanumas
- Inland Aquaculture Research and Development Division, Department of Fisheries, Bangkok, Thailand
| | - Hiromichi Mitamura
- Field Science Education and Research Center, Kyoto University, Kyoto, Japan
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| |
Collapse
|
2
|
Thomson-Laing G, Schallenberg L, Kelly D, Howarth JD, Wood SA. An integrative approach to assess the impact of disturbance on native fish in lakes. Biol Rev Camb Philos Soc 2024; 99:85-109. [PMID: 37621123 DOI: 10.1111/brv.13013] [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: 03/16/2023] [Revised: 08/10/2023] [Accepted: 08/14/2023] [Indexed: 08/26/2023]
Abstract
Freshwater fish are in a perilous state with more than 30% of species considered critically endangered. Yet significant ecological and methodological complexities constrain our ability to determine how disturbances are impacting native fish communities. We review current methods used to assess the responses of fish communities, especially native fish, to disturbances, with a focus on lakes. These methods include contemporary population surveys, manipulative experimental approaches, paleolimnological approaches and Indigenous Knowledge and social histories. We identify knowledge gaps, such as a lack of baseline data for native fish, an inability to assess the impact of historical disturbances, stressor response dynamics in contemporary multi-stressor environments, and natural disturbance regimes. Our assessment of the current methods highlights challenges to filling these knowledge gaps using the reviewed methods. We advocate strongly for the implementation of an integrative approach that combines emerging technologies (i.e. molecular-based techniques in contemporary surveys and paleolimnology) and underutilised knowledge streams (i.e. Indigenous Knowledge and social histories) which should be used in concert with conventional methods. This integrative approach will allow researchers to determine the key drivers of decline and the degree of change, which will enable more informed and successful management actions.
Collapse
Affiliation(s)
- Georgia Thomson-Laing
- Cawthron Institute, 98 Halifax Street, The Wood, Nelson, 7010, New Zealand
- Victoria University of Wellington, PO Box 600, Wellington, 6140, New Zealand
| | | | - David Kelly
- Cawthron Institute, 98 Halifax Street, The Wood, Nelson, 7010, New Zealand
| | - Jamie D Howarth
- Victoria University of Wellington, PO Box 600, Wellington, 6140, New Zealand
| | - Susanna A Wood
- Cawthron Institute, 98 Halifax Street, The Wood, Nelson, 7010, New Zealand
| |
Collapse
|
3
|
Niedrist GH, Hilpold A, Kranebitter P. Unveiling the rise of non-native fishes in eastern alpine mountain rivers: Population trends and implications. JOURNAL OF FISH BIOLOGY 2023; 103:1085-1094. [PMID: 37495556 DOI: 10.1111/jfb.15508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/28/2023] [Accepted: 07/22/2023] [Indexed: 07/28/2023]
Abstract
Insufficient knowledge about the occurrence and spread of non-native fish in mountain regions has impeded effective management strategies worldwide. To address this gap, this study analysed over 1300 electrofishing surveys across 650 sites, encompassing a vast 7400 km2 area in the Eastern Alps. The primary objectives were to quantify the occurrence of non-native species and predict their spread in different river types. Furthermore, the study estimated population sizes and biomass trends for over 150 sites that were surveyed multiple times between 2000 and 2020. Out of the 42 fish species in the study region, 11 were identified as non-native. Notably, two invasive species of Union concern, Lepomis gibbosus and Pseudorasbora parva, increased their population sizes by 8% and 9% per year, over the past decades, supposedly supported by increasing water temperatures. Among the non-native species relevant for recreational fishing, Oncorhynchus mykiss populations showed a significant increase of approximately 7% per year, Salmo trutta populations remained stable, and Salvelinus fontinalis populations experienced a notable decline of approximately 7.4% per year. These varying population trends may be attributed to disparities in stocking intensities, with S. fontinalis receiving minimal stocking compared to the other species. This study revealed that non-native and invasive fish species are a relevant part of fish communities in mountain rivers. Non-salmonid non-natives thrive in warm rivers at lower elevations, whereas salmonid non-natives consolidate in steeper habitats. Because rising temperatures in mountain rivers will accelerate the spread and growth of these species, this first quantification of the current extent will improve fish management strategies in mountainous areas.
Collapse
Affiliation(s)
- G H Niedrist
- Museum of Nature South Tyrol, Bolzano, Italy
- River and Conservation Research, Department of Ecology, University of Innsbruck, Innsbruck, Austria
| | - A Hilpold
- Institute for Alpine Environment, Eurac Research, Bolzano, Italy
| | | |
Collapse
|
4
|
Britton JR. Contemporary perspectives on the ecological impacts of invasive freshwater fishes. JOURNAL OF FISH BIOLOGY 2023; 103:752-764. [PMID: 36207758 DOI: 10.1111/jfb.15240] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Introductions of non-native freshwater fish continue to increase globally, although only a small proportion of these introductions will result in an invasion. These invasive populations can cause ecological impacts in the receiving ecosystem through processes including increased competition and predation pressure, genetic introgression and the transmission of non-native pathogens. Definitions of ecological impact emphasize that shifts in the strength of these processes are insufficient for characterizing impact alone and, instead, must be associated with a quantifiable decline of biological and/or genetic diversity and lead to a measurable loss of diversity or change in ecosystem functioning. Assessments of ecological impact should thus consider the multiple processes and effects that potentially occur from invasive fish populations where, for example, impacts of invasive common carp Cyprinus carpio populations are through a combination of bottom-up and top-down processes that, in entirety, cause shifts in lake stable states and decreased species richness and/or abundances in the biotic communities. Such far-reaching ecological impacts also align to contemporary definitions of ecosystem collapse, given they involve substantial and persistent declines in biodiversity and ecosystem functions that cannot be recovered unaided. Thus, while not all introduced freshwater fishes will become invasive, those species that do develop invasive populations can cause substantial ecological impacts, where some of the impacts on biodiversity and ecosystem functioning might be sufficiently harmful to be considered as contributing to ecosystem collapse.
Collapse
Affiliation(s)
- John Robert Britton
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole, UK
| |
Collapse
|
5
|
Cicala D, Guerra MT, Bardelli R, Di Muri C, Ludovisi A, Vizzini S, Mancinelli G. Isotopic Overlap of Invasive and Native Consumers in the Food Web of Lake Trasimeno (Central Italy). BIOLOGY 2023; 12:1270. [PMID: 37759667 PMCID: PMC10525863 DOI: 10.3390/biology12091270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/11/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
An advanced characterization of the trophic niche of non-indigenous species (NIS) may provide useful information on their ecological impact on invaded communities. Here, we used carbon and nitrogen stable isotopes to estimate pairwise niche overlaps between non-indigenous and native consumers in the winter food web of Lake Trasimeno (central Italy). Overall, a relatively low pairwise overlap of isotopic niches was observed between NIS and native species. The only exception was the Louisiana crayfish Procambarus clarkii, which showed a relatively high and diffuse overlap with other native invertebrates. Our findings highlighted a high niche divergence between non-indigenous and native species in Lake Trasimeno, suggesting a potentially low degree of interspecific competition that may facilitate coexistence and, in turn, limit the strength of impacts. The divergent results obtained for the Louisiana crayfish indicate that additional control measures for this invasive species are needed to mitigate its impact on the Lake Trasimeno system.
Collapse
Affiliation(s)
- Davide Cicala
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy;
| | - Maria Teresa Guerra
- Department of Biological and Environmental Sciences and Technologies—DiSTeBA, University of Salento, SP Lecce-Monteroni, 73100 Lecce, Italy;
| | - Roberta Bardelli
- Department of Earth and Marine Sciences—DiSTeM, University of Palermo, Via Archirafi 22, 90133 Palermo, Italy; (R.B.); (S.V.)
| | - Cristina Di Muri
- Italian National Research Council, Institute of Research on Terrestrial Ecosystems—CNR-IRET, University of Salento, SP Lecce-Monteroni, 73100 Lecce, Italy;
| | - Alessandro Ludovisi
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy;
| | - Salvatrice Vizzini
- Department of Earth and Marine Sciences—DiSTeM, University of Palermo, Via Archirafi 22, 90133 Palermo, Italy; (R.B.); (S.V.)
- Consorzio Nazionale Interuniversitario per le Scienze del Mare—CoNISMa, Piazzale Flaminio 9, 00196 Rome, Italy
| | - Giorgio Mancinelli
- Department of Biological and Environmental Sciences and Technologies—DiSTeBA, University of Salento, SP Lecce-Monteroni, 73100 Lecce, Italy;
- Consorzio Nazionale Interuniversitario per le Scienze del Mare—CoNISMa, Piazzale Flaminio 9, 00196 Rome, Italy
- Italian National Research Council, Institute of Marine Biological Resources and Biotechnologies—CNR-IRBIM, Via Pola 4, 71010 Lesina, Italy
| |
Collapse
|
6
|
Parvez MT, Lucas MC, Hossain MI, Chaki N, Mohsin ABM, Sun J, Galib SM. Invasive vermiculated sailfin catfish (Pterygoplichthys disjunctivus) has an impact on highly valued native fish species. Biol Invasions 2023. [DOI: 10.1007/s10530-023-03012-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
|
7
|
Andolina C, Signa G, Cilluffo G, Iannucci S, Mazzola A, Vizzini S. Coexisting with the alien: Evidence for environmental control on trophic interactions between a native (Atherina boyeri) and a non-indigenous fish species (Gambusia holbrooki) in a Mediterranean coastal ecosystem. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.958467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Biological invasions are a widespread problem worldwide, as invasive non-indigenous species (NIS) may affect native populations through direct (e. g., predation) or indirect (e.g., competition) trophic interactions, leading to changes in the food web structure. The trophic relationships of the invasive eastern mosquitofish Gambusia holbrooki and the native big-scale sand smelt Atherina boyeri coexisting in three Mediterranean coastal ponds characterized by different trophic statuses (from oligotrophic to hypereutrophic) were assessed in spring through isotopic niche analysis and Bayesian mixing models. The two fish relied on the distinctive trophic pathways in the different ponds, with the evidence of minimal interspecific niche overlap indicating site-specific niche divergence mechanisms. In more detail, under hypereutrophic and mesotrophic conditions, the two species occupied different trophic positions but relying on a single trophic pathway, whereas, under oligotrophic conditions, both occupied a similar trophic position but belonging to distinct trophic pathways. Furthermore, the invaders showed the widest niche breadth while the native species showed a niche compression and displacement in the ponds at a higher trophic status compared to the oligotrophic pond. We argue that this may be the result of an asymmetric competition arising between the two species because of the higher competitive ability of G. holbrooki and may have been further shaped by the trophic status of the ponds, through a conjoint effect of prey availability and habitat complexity. While the high trophic plasticity and adaptability of both species to different environmental features and resource availability may have favored their coexistence through site-specific mechanisms of niche segregation, we provide also empirical evidence of the importance of environmental control in invaded food webs, calling for greater attention to this aspect in future studies.
Collapse
|
8
|
de Necker L, Brendonck L, Gerber R, Lemmens P, Soto DX, Ikenaka Y, Ishizuka M, Wepener V, Smit NJ. Drought altered trophic dynamics of an important natural saline lake: A stable isotope approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 834:155338. [PMID: 35452726 DOI: 10.1016/j.scitotenv.2022.155338] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/07/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Climate change and associated droughts threaten the ecology and resilience of natural saline lakes globally. There is a distinct lack of research regarding their ecological response to climatic events in the Global South. This region is predicted to experience climatic events such as El Niño-Southern Oscillation (ENSO) more often and with greater severity with the potential to alter the structure and functioning of aquatic ecosystems significantly. From 2015 to 2016 South Africa experienced one of the most severe country-wide droughts as a result of a strong ENSO event. Our study aimed to investigate the effect of this supra-seasonal drought on the trophic structure of fish communities in a naturally saline shallow lake of a Ramsar wetland using stable isotope techniques. Fishes and potential basal sources were collected from the lake, during predrought conditions in 2010 and after severe drought (recovery phase; 2017). The δ13C and δ15N values of food web elements were determined and analysed using Bayesian mixing models and Bayesian Laymen metrics to establish the proportional contribution of C3 and C4 basal sources to the fish (consumer) diets, and examine the fish community in terms of isotopic niche and trophic structure, respectively. Fish consumers relied predominantly on C3 basal sources in the predrought and shifted to greater reliance on C4 basal sources, decreased isotopic niche space use and a reduction in trophic length in the recovery phase. Drought altered the type and abundance of the basal sources available by limiting sources to those that are more drought-tolerant, reducing the trophic pathways of the food web with no significant alterations in the fish community. These results demonstrate the resilience and biological plasticity of Lake Nyamithi and its aquatic fauna, highlighting the importance of freshwater inflow to saline lakes with alterations thereof posing a significant threat to their continued functioning.
Collapse
Affiliation(s)
- Lizaan de Necker
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa; South African Institute for Aquatic Biodiversity (NRF-SAIAB), Makhanda 6139, South Africa.
| | - Luc Brendonck
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa; Animal Ecology, Global Change and Sustainable Development, Department of Biology, University of Leuven, 32 Charles Deberiotstraat, Leuven 3000, Belgium.
| | - Ruan Gerber
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
| | - Pieter Lemmens
- Laboratory of Aquatic Ecology, Evolution and Conservation, KU Leuven, Ch. Deberiotstraat 32, 3000 Leuven, Belgium; Leibniz Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany.
| | - David X Soto
- Department of Nuclear Sciences and Applications, Division of Physical and Chemical Sciences, Isotope Hydrology Section, International Atomic Energy Agency, Vienna, Austria.
| | - Yoshinori Ikenaka
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa; Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo 060-0818, Japan; Translational Research Unit, Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo 060-0818, Japan; One Health Research Center, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo 060-0818, Japan.
| | - Mayumi Ishizuka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo 060-0818, Japan.
| | - Victor Wepener
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa.
| | - Nico J Smit
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa.
| |
Collapse
|
9
|
Zhang H, Yohannes E, Rothhaupt KO. The Potential Impacts of Invasive Quagga and Zebra Mussels on Macroinvertebrate Communities: An Artificial Stone Substrate Based Field Experiment Using Stable Isotopes. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.887191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Over the past decades, the zebra mussel (Dreissena polymorpha) and quagga mussel (D. rostriformis bugensis) invaded multiple freshwater systems and posed major threats to the overall ecosystem. In Lake Constance where zebra mussels invaded in the 1960s, the quagga mussel invasion progressed at a very high rate since 2016, providing an opportunity to study the ecological impact of both species at an early stage. We conducted a field experiment in the littoral region of the lake and monitored differences in macroinvertebrate community colonization. We used standardized stone substrates, which were blank, glued with empty shells of mussels, with living adult quagga mussels, and with living adult zebra mussels. Empty shells and the shells of both living adult quagga and zebra mussels created more colonization areas for newly settled macroinvertebrates. The abundance of newly settled quagga mussels was higher than zebra mussels, indicating the outcompeting behavior of quagga mussels. We used stable isotopes (δ13C and δ15N) of both dreissenids and their potential competitors, which include two snail species (New Zealand mud snail Potamopyrgus antipodarum and faucet snail Bithynia tentaculate) and additional invasive gammarid species (killer shrimp Dikerogammarus villosus), in order to investigate their feeding ecology and to evaluate their potential impacts on macroinvertebrate community. The δ13C and δ15N of neither the newly settled quagga mussels nor the well-established zebra mussels differed significantly among various treatments. Newly settled quagga mussels had higher δ13C values than newly settled zebra mussels and showed similar differences in all four stone setups. During the experimental period (with quagga and zebra mussels still coexisting in some regions), these two dreissenids exhibited clear dietary (isotopic) niche segregation. The rapid expansion of invasive quagga mussels coupled with the higher mortality rate of zebra mussels might have caused a dominance shift from zebra to quagga mussels. The study offers the first overview of the progressive invasion of quagga mussel and the reaction of zebra mussels and other newly settled macroinvertebrates, and compliments the hypothesis of facilitative associations between invasive dreissenids. Results provide an experimental benchmark by which future changes in trophic ecology and invasion dynamics can be measured across the ecosystem.
Collapse
|
10
|
Trophic reorganization of native planktivorous fishes at different density extremes of bigheaded carps in the Illinois and Mississippi rivers, USA. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02822-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
11
|
Montgomery WI, Elwood RW, Dick JTA. Invader abundance and contraction of niche breadth during replacement of a native gammarid amphipod. Ecol Evol 2022; 12:e8500. [PMID: 35342587 PMCID: PMC8928895 DOI: 10.1002/ece3.8500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/23/2021] [Accepted: 12/10/2021] [Indexed: 11/25/2022] Open
Abstract
The introduction of non-native species to new locations is a growing global phenomenon with major negative effects on native species and biodiversity. Such introductions potentially bring competitors into contact leading to partial or total species replacements. This creates an opportunity to study novel species interactions as they occur, with the potential to address the strength of inter- and intraspecific interactions, most notably competition. Such potential has often not been realized, however, due to the difficulties inherent in detecting rapid and spatially expansive species interactions under natural field conditions. The invasive amphipod crustacean Gammarus pulex has replaced a native species, Gammarus duebeni celticus, in river and lake systems across Europe. This replacement process is at least partially driven by differential parasitism, cannibalism, and intraguild predation, but the role of interspecific competition has yet to be resolved. Here, we examine how abundance of an invasive species may affect spatial niche breadth of a native congeneric species. We base our analyses of niche breadth on ordination and factor analysis of biological community and physical parameters, respectively, constituting a summative, multidimensional approach to niche breadth along environmental gradients. Results derived from biological and environmental niche criteria were consistent, although interspecific effects were stronger using the biological niche approach. We show that the niche breadth of the native species is constrained as abundance of the invader increases, but the converse effect does not occur. We conclude that the interaction between invasive G. pulex and native G. d. celticus under natural conditions is consistent with strong interspecific competition whereby a native, weaker competitor is replaced by a superior invasive competitor. This study indicates a strong role of interspecific competition, alongside other known interactions such as differential intraguild predation, in rapid and expansive species replacements following biological invasions.
Collapse
Affiliation(s)
- W. Ian Montgomery
- School of Biological SciencesInstitute for Global Food SecurityQueen's University BelfastBelfastUK
| | - Robert W. Elwood
- School of Biological SciencesInstitute for Global Food SecurityQueen's University BelfastBelfastUK
| | - Jaimie T. A. Dick
- School of Biological SciencesInstitute for Global Food SecurityQueen's University BelfastBelfastUK
| |
Collapse
|
12
|
Top-Karakuş N, Karakuş U, Tarkan AS. Niche segregation of a newly introduced invasive and co-occurring native fish species in a productive shallow lake (Manyas, NW Anatolia). JOURNAL OF VERTEBRATE BIOLOGY 2021. [DOI: 10.25225/jvb.21043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Nildeniz Top-Karakuş
- Faculty of Fisheries, Muğla Sıtkı Koçman University, Menteşe, Muğla, Turkey; e-mail: ,
| | - Uğur Karakuş
- Faculty of Fisheries, Muğla Sıtkı Koçman University, Menteşe, Muğla, Turkey; e-mail: ,
| | - Ali Serhan Tarkan
- Faculty of Fisheries, Muğla Sıtkı Koçman University, Menteşe, Muğla, Turkey; e-mail: ,
| |
Collapse
|
13
|
Dominguez Almela V, South J, Britton JR. Predicting the competitive interactions and trophic niche consequences of a globally invasive fish with threatened native species. J Anim Ecol 2021; 90:2651-2662. [PMID: 34309851 DOI: 10.1111/1365-2656.13571] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 07/19/2021] [Indexed: 12/01/2022]
Abstract
Novel trophic interactions between invasive and native species potentially increase levels of interspecific competition in the receiving environment. However, theory on the trophic impacts of invasive fauna on native competitors is ambiguous, as while increased interspecific competition can result in the species having constricted and diverged trophic niches, the species might instead increase their niche sizes, especially in omnivorous species. The competitive interactions between an omnivorous invasive fish, common carp Cyprinus carpio, and a tropically analogous native and threatened fish, crucian carp Carassius carassius, were tested using comparative functional responses (CFRs). A natural pond experiment then presented the species in allopatry and sympatry, determining the changes in their trophic (isotopic) niche sizes and positions over 4 years. These predictive approaches were complemented by assessing their trophic relationships in wild populations. Comparative functional responses revealed that compared to crucian carp, carp had a significantly higher maximum consumption rate. Coupled with a previous cohabitation growth study, these results predicted that competition between the species is asymmetric, with carp the superior competitor. The pond experiment used stable isotope metrics to quantify shifts in the trophic (isotopic) niche sizes of the fishes. In allopatry, the isotopic niches of the two species were similar sized and diverged. Conversely, in sympatry, carp isotopic niches were always considerably larger than those of crucian carp and were strongly partitioned. Sympatric crucian carp had larger isotopic niches than allopatric conspecifics, a likely response to asymmetric competition from carp. However, carp isotopic niches were also larger in sympatry than allopatry. In the wild populations, the carp isotopic niches were always larger than crucian carp niches, and were highly divergent. The superior competitive abilities of carp predicted in aquaria experiments were considered to be a process involved in sympatric crucian carp having larger isotopic niches than in allopatry. However, as sympatric carp also had larger niches than in allopatry, this suggests other ecological processes were also likely to be involved, such as those relating to fish prey resources. These results highlight the inherent complexity in determining how omnivorous invasive species integrate into food webs and alter their structure.
Collapse
Affiliation(s)
- Victoria Dominguez Almela
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole, UK
| | - Josie South
- Centre for Invasion Biology, Department of Botany and Zoology, Stellenbosch University, Stellenbosch, South Africa
| | - J Robert Britton
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole, UK
| |
Collapse
|
14
|
Prati S, Henriksen EH, Smalås A, Knudsen R, Klemetsen A, Sánchez-Hernández J, Amundsen PA. The effect of inter‐ and intraspecific competition on individual and population niche widths: a four‐decade study on two interacting salmonids. OIKOS 2021. [DOI: 10.1111/oik.08375] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Sebastian Prati
- Dept of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic Univ. of Norway Tromsø Norway
| | - Eirik Haugstvedt Henriksen
- Dept of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic Univ. of Norway Tromsø Norway
| | - Aslak Smalås
- Dept of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic Univ. of Norway Tromsø Norway
| | - Rune Knudsen
- Dept of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic Univ. of Norway Tromsø Norway
| | - Anders Klemetsen
- Dept of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic Univ. of Norway Tromsø Norway
| | - Javier Sánchez-Hernández
- Depto de Biología, Geología, Física y Química Inorgánica, Univ. Rey Juan Carlos, Móstoles Madrid Spain
| | - Per-Arne Amundsen
- Dept of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic Univ. of Norway Tromsø Norway
| |
Collapse
|
15
|
Wang Y, Tan W, Li B, Wen L, Lei G. Habitat alteration facilitates the dominance of invasive species through disrupting niche partitioning in floodplain wetlands. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13376] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Yuyu Wang
- School of Ecology and Nature Conservation Beijing Forestry University Beijing China
- National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province Hanshou China
| | - Wenzhuo Tan
- School of Ecology and Nature Conservation Beijing Forestry University Beijing China
- National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province Hanshou China
| | - Bin Li
- School of Ecology and Nature Conservation Beijing Forestry University Beijing China
- National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province Hanshou China
| | - Li Wen
- School of Ecology and Nature Conservation Beijing Forestry University Beijing China
- Science Division NSW Department of Planning, Industry and Environment Sydney NSW Australia
| | - Guangchun Lei
- School of Ecology and Nature Conservation Beijing Forestry University Beijing China
- National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem in Hunan Province Hanshou China
| |
Collapse
|
16
|
Camargo NF, Reis GG, Camargo ACL, Nardoto GB, Kneitel JM, Vieira EM. Seasonal isotopic niche of a rodent: High between‐individual variation but no changes in individual niche width during the rich‐resource period. Biotropica 2021. [DOI: 10.1111/btp.12921] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Nícholas F. Camargo
- Departamento de Ecologia Instituto de Ciências Biológicas Universidade de Brasília Brasília DF Brazil
| | - Guilherme G. Reis
- Departamento de Ecologia Instituto de Ciências Biológicas Universidade de Brasília Brasília DF Brazil
| | - Anna Carla L. Camargo
- Departamento de Ecologia Instituto de Ciências Biológicas Universidade de Brasília Brasília DF Brazil
| | - Gabriela B. Nardoto
- Departamento de Ecologia Instituto de Ciências Biológicas Universidade de Brasília Brasília DF Brazil
| | - Jamie M. Kneitel
- Department of Biological Sciences California State University Sacramento CA USA
| | - Emerson M. Vieira
- Departamento de Ecologia Instituto de Ciências Biológicas Universidade de Brasília Brasília DF Brazil
| |
Collapse
|
17
|
Haubrock PJ, Balzani P, Britton JR, Haase P. Using stable isotopes to analyse extinction risks and reintroduction opportunities of native species in invaded ecosystems. Sci Rep 2020; 10:21576. [PMID: 33303830 PMCID: PMC7728764 DOI: 10.1038/s41598-020-78328-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/23/2020] [Indexed: 11/23/2022] Open
Abstract
Invasive non-native species have pervasive impacts on native biodiversity, including population extirpations and species extinctions. Identifying reasons why a population of a native species is extirpated following an invasion often relies on literature-based results of anecdotal observations. The well-established schemes of existing risk assessments for invasive species assume that a species' information (e.g. impacts or behavioural and biological traits) can be projected from one area to another to estimate the potential impact of a species in another environment. We used stable isotope data (δ13C, δ15N) from both invaded and uninvaded communities to predict such invasion impacts by reconstructing trophic relationships. This approach was tested on a community within a protected lake in Northern Spain where, following the introductions of non-native species, the last resident native species (the common tench Tinca tinca, the European eel Anguilla anguilla, and the whirligig beetle Gyrinus sp.) had been extirpated. Through the application of this novel approach, we found evidence that native species' declines were related to direct predation by and resource overlap with non-native species, which occurred in conjunction with habitat modification. Using this approach, we outlined the mechanisms involved in the extirpation of native species in the post-invasion period. To compensate for losses of native species induced by invasions of non-native species, native species reintroductions might be an appropriate tool. For this, we further suggested and discussed a novel approach that predicts the outcome of arising interactions by superimposing stable isotope data from alternative sources to better estimate the success of native species´ reintroductions.
Collapse
Affiliation(s)
- Phillip J Haubrock
- Department of River Ecology and Conservation, Senckenberg Research Institute and Natural History Museum Frankfurt, Clamecystrasse 12, 63571, Gelnhausen, Germany.
- Faculty of Fisheries and Protection of Waters, CENAKVA, University of South Bohemia in České Budějovice, Vodňany, Czechia.
| | - Paride Balzani
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019, Florence, Italy
| | - J Robert Britton
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole, Dorset, UK
| | - Peter Haase
- Department of River Ecology and Conservation, Senckenberg Research Institute and Natural History Museum Frankfurt, Clamecystrasse 12, 63571, Gelnhausen, Germany
- Faculty of Biology, University of Duisburg-Essen, 45141, Essen, Germany
| |
Collapse
|
18
|
Diet overlap of common and at-risk riverine benthic fishes before and after Round Goby (Neogobius melanostomus) invasion. Biol Invasions 2020. [DOI: 10.1007/s10530-020-02366-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
19
|
Minder M, Arsenault ER, Erdenee B, Pyron M. Dietary specificity and overlap in endorheic river fishes: How do native and nonnative species compare? JOURNAL OF FISH BIOLOGY 2020; 97:453-464. [PMID: 32418215 DOI: 10.1111/jfb.14396] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/14/2020] [Accepted: 05/14/2020] [Indexed: 06/11/2023]
Abstract
The introduction of nonnative species is one of the most critical problems facing freshwater systems today. The rivers of the Great Basin (USA) have been particularly imperilled by nonnative species introductions and represent a valuable location to study the dietary trends of native and nonnative fishes in isolated, endorheic systems. We collected fish from 23 sites, spanning three Great Basin watersheds (Carson, Humboldt and Bear Rivers) and two elevation categories (upland and lowland). Only a single species (speckled dace Rhinichthys osculus) occurred in both elevation zones. Diet item analyses of over 500 fish stomachs indicated significant dietary overlaps between native and nonnative fishes and detailed dietary selectivity for all species. This finding, along with the low species diversity observed in the region, suggests low dietary niche diversity, which could have the potential to amplify the competitive impacts of nonnatives on native species. In upland sites, nonnative trouts were the dominant invaders, while in lowland sites warm-water nonnatives were prevalent. The management implications we recommend based on our results urge for continued monitoring of water temperature and species occurrences to predict if dietary overlaps observed in this study are likely to change in the future. SIGNIFICANCE STATEMENT: The Great Basin is an ideal endorheic region to study dietary trends in native and nonnative fishes. These trends are important in predicting competitive interactions among fishes. By looking at the diets of fishes within this region we were able to identify multiple significant overlaps among native and nonnative fishes. These results represent a baseline for future studies in the region as well as being comparable to other regions with similar invasive/native overlaps.
Collapse
Affiliation(s)
- Mario Minder
- Department of Biology, Ball State University, Muncie, Indiana, USA
| | - Emily R Arsenault
- Kansas Biological Survey and Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, Kansas, USA
| | - Bolortsetseg Erdenee
- Department of Biodiversity, Earth & Environmental Science, Drexel University, Philadelphia, Pennsylvania, USA
| | - Mark Pyron
- Department of Biology, Ball State University, Muncie, Indiana, USA
| |
Collapse
|
20
|
Rolla M, Consuegra S, Garcia de Leaniz C. Trophic Plasticity of the Highly Invasive Topmouth Gudgeon (Pseudorasbora parva) Inferred From Stable Isotope Analysis. Front Ecol Evol 2020. [DOI: 10.3389/fevo.2020.00212] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
21
|
Schopt Rehage J, Lopez LK, Sih A. A comparison of the establishment success, response to competition, and community impact of invasive and non-invasive Gambusia species. Biol Invasions 2019. [DOI: 10.1007/s10530-019-02113-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
22
|
de Carvalho DR, Flecker AS, Alves CBM, Sparks JP, Pompeu PS. Trophic responses to aquatic pollution of native and exotic livebearer fishes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 681:503-515. [PMID: 31128341 DOI: 10.1016/j.scitotenv.2019.05.092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 04/25/2019] [Accepted: 05/07/2019] [Indexed: 06/09/2023]
Abstract
The objective of this study was to evaluate if aquatic pollution promote diet shifts in two livebearer fishes (Poeciliidae): an exotic species, the guppy (Poecilia reticulata), and a native livebearer (Phalloceros uai). The study was carried out in a Brazilian basin highly impacted by anthropogenic activities, especially discharge of domestic and industrial sewage from a region with more than five million human inhabitants. To evaluate the trophic ecology of both native and exotic species it was analysed carbon (δ13C) and nitrogen (δ15N) stable isotopes of fish tissue, food resources and, sewage. Moreover, stable isotopes analyses were coupled with gut contents of the two species to provide additional information about fish diet. Exotic guppy abundance was high in the most polluted site, where P. reticulata assimilated carbon directly from sewage. The native species was absent in the most polluted site, but presented wider niches than the exotic species in almost all other sites. Gut content analyses indicated high consumption of aquatic insects by both species. However, while the native species consumed a diverse suite of insect taxa, the exotic species consumed mainly Chironomidae larvae. We conclude that aquatic pollution promotes diet shifts in both native and exotic species, with both species changing their trophic niches in a similar way according to the level of degradation of the environment. The ability to directly assimilate sewage, together with its capacity to survive in environments with poor water quality and its reproductive strategy, may favour the establishment of exotic guppies in strongly polluted sites.
Collapse
Affiliation(s)
- Débora Reis de Carvalho
- Laboratório de Ecologia de Peixes, Setor de Ecologia, Departamento de Biologia, 3, Campus Universitário, Caixa Postal 3037, 37200-000 Lavras, MG, Brazil.
| | - Alexander S Flecker
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA
| | - Carlos Bernardo Mascarenhas Alves
- Laboratório Nuvelhas, Projeto Manuelzão, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Jed P Sparks
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA
| | - Paulo Santos Pompeu
- Laboratório de Ecologia de Peixes, Setor de Ecologia, Departamento de Biologia, 3, Campus Universitário, Caixa Postal 3037, 37200-000 Lavras, MG, Brazil
| |
Collapse
|
23
|
Britton JR, Gutmann Roberts C, Amat Trigo F, Nolan ET, De Santis V. Predicting the ecological impacts of an alien invader: Experimental approaches reveal the trophic consequences of competition. J Anim Ecol 2019; 88:1066-1078. [DOI: 10.1111/1365-2656.12996] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 03/03/2019] [Indexed: 11/27/2022]
Affiliation(s)
- J. Robert Britton
- Department of Life and Environmental Sciences Bournemouth University Poole UK
| | | | - Fatima Amat Trigo
- Department of Life and Environmental Sciences Bournemouth University Poole UK
- Departmento de Zoología y Antropología Física Universidad de Murcia Murcia Spain
| | - Emma T. Nolan
- Department of Life and Environmental Sciences Bournemouth University Poole UK
| | - Vanessa De Santis
- Department of Life and Environmental Sciences Bournemouth University Poole UK
- Department of Theoretical and Applied Sciences University of Insubria Varese Italy
| |
Collapse
|
24
|
Trophic consequences of an invasive, small-bodied non-native fish, sunbleak Leucaspius delineatus, for native pond fishes. Biol Invasions 2018. [DOI: 10.1007/s10530-018-1824-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
25
|
Britton JR, Ruiz‐Navarro A, Verreycken H, Amat‐Trigo F, Trullas SC. Trophic consequences of introduced species: Comparative impacts of increased interspecific versus intraspecific competitive interactions. Funct Ecol 2018; 32:486-495. [PMID: 29576673 PMCID: PMC5856055 DOI: 10.1111/1365-2435.12978] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 08/18/2017] [Indexed: 12/12/2022]
Abstract
Invasive species can cause substantial ecological impacts on native biodiversity. While ecological theory attempts to explain the processes involved in the trophic integration of invaders into native food webs and their competitive impacts on resident species, results are equivocal. In addition, quantifying the relative strength of impacts from non-native species (interspecific competition) versus the release of native conspecifics (intraspecific competition) is important but rarely completed.Two model non-native fishes, the globally invasive Cyprinus carpio and Carassius auratus, and the model native fish Tinca tinca, were used in a pond experiment to test how increased intra- and interspecific competition influenced trophic niches and somatic growth rates. This was complemented by samples collected from three natural fish communities where the model fishes were present. The isotopic niche, calculated using stable isotope data, represented the trophic niche.The pond experiment used additive and substitutive treatments to quantify the trophic niche variation that resulted from intra- and interspecific competitive interactions. Although the trophic niche sizes of the model species were not significantly altered by any competitive treatment, they all resulted in patterns of interspecific niche divergence. Increased interspecific competition caused the trophic niche of T. tinca to shift to a significantly higher trophic position, whereas intraspecific competition caused its position to shift towards elevated δ13C. These patterns were independent of impacts on fish growth rates, which were only significantly altered when interspecific competition was elevated.In the natural fish communities, patterns of trophic niche partitioning between the model fishes was evident, with no niche sharing. Comparison of these results with those of the experiment revealed the most similar results between the two approaches were for the niche partitioning between sympatric T. tinca and C. carpio.These results indicate that trophic niche divergence facilitates the integration of introduced species into food webs, but there are differences in how this manifests between introductions that increase inter- and intraspecific competition. In entirety, these results suggest that the initial ecological response to an introduction appears to be a trophic re-organisation of the food web that minimises the trophic interactions between competing species. A plain language summary is available for this article.
Collapse
Affiliation(s)
| | | | - Hugo Verreycken
- Research Institute for Nature and Forest (INBO)BrusselsBelgium
| | - Fatima Amat‐Trigo
- Faculty of Science and TechnologyBournemouth UniversityPooleUK
- Departmento de Zoología y Antropología FísicaUniversidad de MurciaMurciaSpain
| | | |
Collapse
|
26
|
Doherty-Bone TM, Dunn AM, Liddell C, Brown LE. Transformation of detritus by a European native and two invasive alien freshwater decapods. Biol Invasions 2018; 20:1799-1808. [PMID: 31007567 PMCID: PMC6445490 DOI: 10.1007/s10530-018-1661-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 01/04/2018] [Indexed: 12/05/2022]
Abstract
Invasive alien species have the potential to alter biodiversity and ecosystem processes. In freshwaters, detritus decomposition is a major ecosystem service but it remains uncertain whether invasive alien decapods process detritus differently to natives. This study examined leaf litter processing, and cascading effects on biofilms, by the European native white clawed crayfish (Austropotamobius pallipes) compared to two invasive alien decapod species: the American signal crayfish (Pacifastacus leniusculus) and the Chinese mitten crab (Eriocheir sinensis). Invasive alien decapods were responsible for higher leaf litter decomposition than the native. In comparison with native crayfish, invasive alien crab and crayfish showed higher rates of litter consumption, increased production of smaller leaf fragments, fine particulate organic matter (FPOM) and dissolved organic carbon. Nutrients (ammonia and soluble reactive phosphorous) derived from excretion (measured separately in the absence of biofilms) varied among decapod species, being lower for P. leniusculus. However, nutrient concentrations did not vary among species in the detritivory experiments with biofilm, implying nutrients were utilised for biofilm production and respiration as no differences in biomass were evident among decapod treatments. These results show invasive alien decapods have the potential to increase the magnitude of detrital processing to FPOM in rivers, but indirect impacts on primary producers due to nutrient release are uncertain based on this experimental context.
Collapse
Affiliation(s)
- Thomas M Doherty-Bone
- 1School of Biology, University of Leeds, Leeds, West Yorkshire UK.,2School of Geography, University of Leeds, Leeds, West Yorkshire UK.,3water@leeds, University of Leeds, Leeds, West Yorkshire UK
| | - Alison M Dunn
- 1School of Biology, University of Leeds, Leeds, West Yorkshire UK.,3water@leeds, University of Leeds, Leeds, West Yorkshire UK
| | - Caroline Liddell
- 1School of Biology, University of Leeds, Leeds, West Yorkshire UK
| | - Lee E Brown
- 2School of Geography, University of Leeds, Leeds, West Yorkshire UK.,3water@leeds, University of Leeds, Leeds, West Yorkshire UK
| |
Collapse
|
27
|
Neill C, Cotner S, Wisenden B. Solar‐powered flow‐through system for aquatic field studies. Methods Ecol Evol 2017. [DOI: 10.1111/2041-210x.12818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Connor Neill
- Itasca Biological Field Station and LaboratoriesCollege of Biological SciencesUniversity of Minnesota Lake Itasca MN USA
| | - Sehoya Cotner
- Itasca Biological Field Station and LaboratoriesCollege of Biological SciencesUniversity of Minnesota Lake Itasca MN USA
| | - Brian Wisenden
- Itasca Biological Field Station and LaboratoriesCollege of Biological SciencesUniversity of Minnesota Lake Itasca MN USA
| |
Collapse
|
28
|
Jänes H, Herkül K, Kotta J. Environmental niche separation between native and non-native benthic invertebrate species: Case study of the northern Baltic Sea. MARINE ENVIRONMENTAL RESEARCH 2017; 131:123-133. [PMID: 28965671 DOI: 10.1016/j.marenvres.2017.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 08/08/2017] [Accepted: 08/08/2017] [Indexed: 06/07/2023]
Abstract
Knowledge and understanding of geographic distributions of species is crucial for many aspects in ecology, conservation, policy making and management. In order to reach such an understanding, it is important to know abiotic variables that impact and drive distributions of native and non-native species. We used an existing long-term macrobenthos database for species presence-absence information and biomass estimates at different environmental gradients in the northern Baltic Sea. Region specific abiotic variables (e.g. salinity, depth) were derived from previously constructed bathymetric and hydrodynamic models. Multidimensional ordination techniques were then applied to investigate potential niche space separation between all native and non-native invertebrates in the northern Baltic Sea. Such an approach allowed to obtain data rich and robust estimates of the current native and non-native species distributions and outline important abiotic parameters influencing the observed pattern. The results showed clear niche space separation between native and non-native species. Non-native species were situated in an environmental space characterized by reduced salinity, high temperatures, high proportion of soft seabed and decreased depth and wave exposure whereas native species displayed an opposite pattern. Different placement of native and non-native species along the studied environmental niche space is likely to be explained by the differences in their evolutionary history, human mediated activities and geological youth of the Baltic Sea. The results of this study can provide early warnings and effectively outline coastal areas in the northern Baltic Sea that are prone to further range expansion of non-native species as climate change is expected to significantly reduce salinity and increase temperature in wide coastal areas, both supporting the disappearance of native and appearance of non-native species.
Collapse
Affiliation(s)
- Holger Jänes
- School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Victoria 3125, Australia.
| | - Kristjan Herkül
- Estonian Marine Institute, University of Tartu, Mäealuse 14, 12618 Tallinn, Estonia
| | - Jonne Kotta
- Estonian Marine Institute, University of Tartu, Mäealuse 14, 12618 Tallinn, Estonia
| |
Collapse
|
29
|
Charlery de la Masselière M, Ravigné V, Facon B, Lefeuvre P, Massol F, Quilici S, Duyck PF. Changes in phytophagous insect host ranges following the invasion of their community: Long-term data for fruit flies. Ecol Evol 2017; 7:5181-5190. [PMID: 28770058 PMCID: PMC5528217 DOI: 10.1002/ece3.2968] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 03/03/2017] [Accepted: 03/16/2017] [Indexed: 01/16/2023] Open
Abstract
The invasion of an established community by new species can trigger changes in community structure. Invasions often occur in phytophagous insect communities, the dynamics of which are driven by the structure of the host assemblage and the presence of competitors. In this study, we investigated how a community established through successive invasions changed over time, taking the last invasion as the reference. The community included four generalist and four specialist species of Tephritidae fruit flies. We analyzed a long‐term database recording observed numbers of flies per fruit for each species on 36 host plants, over 18 years, from 1991 to 2009. Community structure before the last invasion by Bactrocera zonata in 2000 was described in relation to host plant phylogeny and resource availability. Changes in the host range of each species after the arrival of B. zonata were then documented by calculating diversity indices. The flies in the community occupied three types of niches defined on the basis of plant phylogeny (generalists, Solanaceae specialist, and Cucurbitaceae specialists). After the arrival of B. zonata, no change in the host range of specialist species was observed. However, the host ranges of two generalist species, Ceratitis quilicii and Ceratitis capitata, tended to shrink, as shown by the decreases in species richness and host plant α‐diversity. Our study shows increased host specialization by generalist phytophagous insects in the field following the arrival of an invasive species sharing part of their resources. These findings could be used to improve predictions of new interactions between invaders and recipient communities.
Collapse
Affiliation(s)
| | | | - Benoît Facon
- UMR CBGP INRA Montferrier-sur-Lez France.,UMR PVBMT INRA Saint-Pierre Réunion France
| | | | - François Massol
- CNRS UMR 8198 - Evo-Eco-Paleo Univ. Lille SPICI group Lille France
| | | | | |
Collapse
|
30
|
Consistent patterns of trophic niche specialization in host populations infected with a non-native copepod parasite. Parasitology 2017; 144:945-953. [DOI: 10.1017/s0031182017000075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SUMMARYPopulations of generalist species often comprise of smaller sub-sets of relatively specialized individuals whose niches comprise small sub-sets of the overall population niche. Here, the role of parasite infections in trophic niche specialization was tested using five wild fish populations infected with the non-native parasite Ergasilus briani, a copepod parasite with a direct lifecycle that infects the gill tissues of fish hosts. Infected and uninfected fishes were sampled from the same habitats during sampling events. Prevalence in the host populations ranged between 16 and 67%, with parasite abundances of up to 66 parasites per fish. Although pathological impacts included hyperplasia and localized haemorrhaging of gill tissues, there were no significant differences in the length, weight and condition of infected and uninfected fishes. Stable isotope analyses (δ13C, δ15N) revealed that the trophic niche of infected fishes, measured as standard ellipse area (i.e. the isotopic niche), was consistently and significantly smaller compared with uninfected conspecifics. These niches of infected fishes always sat within that of uninfected fish, suggesting trophic specialization in hosts. These results suggested trophic specialization is a potentially important non-lethal consequence of parasite infection that results from impaired functional traits of the host.
Collapse
|
31
|
|
32
|
Jackson M, Wasserman R, Grey J, Ricciardi A, Dick J, Alexander M. Novel and Disrupted Trophic Links Following Invasion in Freshwater Ecosystems. ADV ECOL RES 2017. [DOI: 10.1016/bs.aecr.2016.10.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
|
33
|
|
34
|
Bašić T, Britton JR. Characterizing the trophic niches of stocked and resident cyprinid fishes: consistency in partitioning over time, space and body sizes. Ecol Evol 2016; 6:5093-104. [PMID: 27547336 PMCID: PMC4979730 DOI: 10.1002/ece3.2272] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 05/27/2016] [Accepted: 05/31/2016] [Indexed: 11/30/2022] Open
Abstract
Hatchery‐reared fish are commonly stocked into freshwaters to enhance recreational angling. As these fishes are often of high trophic position and attain relatively large sizes, they potentially interact with functionally similar resident fishes and modify food‐web structure. Hatchery‐reared barbel Barbus barbus are frequently stocked to enhance riverine cyprinid fish communities in Europe; these fish can survive for over 20 years and exceed 8 kg. Here, their trophic consequences for resident fish communities were tested using cohabitation studies, mainly involving chub Squalius cephalus, a similarly large‐bodied, omnivorous and long‐lived species. These studies were completed over three spatial scales: pond mesocosms, two streams and three lowland rivers, and used stable isotope analysis. Experiments in mesocosms over 100 days revealed rapid formation of dietary specializations and discrete trophic niches in juvenile B. barbus and S. cephalus. This niche partitioning between the species was also apparent in the streams over 2 years. In the lowland rivers, where fish were mature individuals within established populations, this pattern was also generally apparent in fishes of much larger body sizes. Thus, the stocking of these hatchery‐reared fish only incurred minor consequences for the trophic ecology of resident fish, with strong patterns of trophic niche partitioning and diet specialization. Application of these results to decision‐making frameworks should enable managers to make objective decisions on whether cyprinid fish should be stocked into lowland rivers according to ecological risk.
Collapse
Affiliation(s)
- Tea Bašić
- Centre for Conservation Ecology and Environmental Sciences Faculty of Science and Technology Bournemouth University Poole Dorset BH12 5BB U.K
| | - J Robert Britton
- Centre for Conservation Ecology and Environmental Sciences Faculty of Science and Technology Bournemouth University Poole Dorset BH12 5BB U.K
| |
Collapse
|
35
|
Britton JR, Andreou D. Parasitism as a Driver of Trophic Niche Specialisation. Trends Parasitol 2016; 32:437-445. [DOI: 10.1016/j.pt.2016.02.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 02/08/2016] [Accepted: 02/12/2016] [Indexed: 10/22/2022]
|
36
|
Busst GMA, Britton JR. High variability in stable isotope diet-tissue discrimination factors of two omnivorous freshwater fishes in controlled ex situ conditions. ACTA ACUST UNITED AC 2016; 219:1060-8. [PMID: 26896544 DOI: 10.1242/jeb.137380] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 01/27/2016] [Indexed: 11/20/2022]
Abstract
Diet-tissue discrimination factors (Δ(13)C and Δ(15)N) are influenced by variables including the tissues being analysed and the taxon of the consumer and its prey. Whilst differences in Δ(13)C and Δ(15)N are apparent between herbivorous and piscivorous fishes, there is less known for omnivorous fishes that consume plant and animal material. Here, the omnivorous cyprinid fishes Barbus barbus and Squalius cephalus were held in tank aquaria and exposed to three diets that varied in their constituents (plant based to fishmeal based) and protein content (13% to 45%). After 100 days and isotopic replacement in fish tissues to 98%, samples of the food items, and dorsal muscle, fin tissue and scales were analysed for δ(13)C and δ(15)N. For both species and all diets, muscle was always enriched in δ(15)N and depleted in δ(13)C compared with fin tissue and scales. Across the different diets, Δ(13)C ranged between 2.0‰ and 5.6‰ and Δ(15)N ranged between 2.0‰ and 6.9‰. The diet based on plant material (20% protein) always resulted in the highest discrimination factors for each tissue, whilst the diet based on fishmeal (45% protein) consistently resulted in the lowest. The discrimination factors produced by non-fish diets were comparatively high compared with values in the literature, but were consistent with general patterns for some herbivorous fishes. These outputs suggest that the diet-tissue discrimination factors of omnivorous fishes will vary considerably between animal and plant prey, and these specific differences need consideration in predictions of their diet composition and trophic position.
Collapse
Affiliation(s)
- Georgina M A Busst
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole BH12 5BB, UK
| | - J Robert Britton
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole BH12 5BB, UK
| |
Collapse
|
37
|
The distribution of an invasive fish species is highly affected by the presence of native fish species: evidence based on species distribution modelling. Biol Invasions 2015. [DOI: 10.1007/s10530-015-1016-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
38
|
Tran TNQ, Jackson MC, Sheath D, Verreycken H, Britton JR. Patterns of trophic niche divergence between invasive and native fishes in wild communities are predictable from mesocosm studies. J Anim Ecol 2015; 84:1071-80. [PMID: 25732893 PMCID: PMC5098174 DOI: 10.1111/1365-2656.12360] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 02/07/2015] [Indexed: 11/29/2022]
Abstract
Ecological theory attempts to predict how impacts for native species arise from biological invasions. A fundamental question centres on the feeding interactions of invasive and native species: whether invasion will result in increased interspecific competition, which would result in negative consequences for the competing species, or trophic niche divergence, which would facilitate the invader's integration into the community and their coexistence with native species. Here, the feeding interactions of a highly invasive fish, topmouth gudgeon Pseudorasbora parva, with three native and functionally similar fishes were studied to determine whether patterns of either niche overlap or divergence detected in mesocosm experiments were apparent between the species at larger spatial scales. Using stable isotope analysis, their feeding relationships were assessed initially in the mesocosms (1000 L) and then in small ponds (<400 m2) and large ponds (>600 m2). In the mesocosms, a consistent pattern of trophic niche divergence was evident between the sympatric fishes, with niches shifting further apart in isotopic space than suggested in allopatry, revealing that sharing of food resources was limited. Sympatric P. parva also had a smaller niche than their allopatric populations. In eight small ponds where P. parva had coexisted for several years with at least one of the fish species used in the mesocosms, strong patterns of niche differentiation were also apparent, with P. parva always at a lower trophic position than the other fishes, as also occurred in the mesocosms. Where these fishes were sympatric within more complex fish communities in the large ponds, similar patterns were also apparent, with strong evidence of trophic niche differentiation. Aspects of the ecological impacts of P. parva invasion for native communities in larger ponds were consistent with those in the mesocosm experiments. Their invasion resulted in divergence in trophic niches, partly due to their reduced niche widths when in sympatry with other species, facilitating their coexistence in invaded ecosystems. Our study highlights the utility of controlled mesocosm studies for predicting the trophic relationships that can develop from introductions of non‐native species into more complex ecosystems and at larger spatial scales.
Collapse
Affiliation(s)
- Thi Nhat Quyen Tran
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole, BH12 5BB, UK
| | - Michelle C Jackson
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole, BH12 5BB, UK.,Department of Zoology and Entomology, Centre for Invasion Biology, University of Pretoria, Gauteng, South Africa
| | - Danny Sheath
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole, BH12 5BB, UK
| | - Hugo Verreycken
- Research Institute for Nature and Forest (INBO), Kliniekstraat 25, Brussels, B-1070, Belgium
| | - J Robert Britton
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole, BH12 5BB, UK
| |
Collapse
|