Journal ArticleDOI
Ecological Impacts of Nonnative Freshwater Fishes
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TLDR
The present study provides an illustrative conspectus of the most recent literature reporting ecological impacts of non-native freshwater fishes from a wide range of species and geographic locations and concludes with a prospectus of needed areas of scientific inquiry.Abstract:
There is a long history of introduction of non-native fishes in fresh waters and the introduction rate has accelerated greatly over time. Although not all introduced fishes have appreciable effects on their new ecosystems, many exert significant ecological, evolutionary, and economic impacts. For researchers, managers, and policy makers interested in conserving freshwater diversity, understanding the magnitude and array of potential impacts of non-native fish species is of utmost importance. The present study provides an illustrative conspectus of the most recent literature reporting ecological impacts of non-native freshwater fishes from a wide range of species and geographic locations and concludes with a prospectus of needed areas of scientific inquiry. Both directly and indirectly, invasive fishes affect a wide range of native organisms from zooplankton to mammals across multiple levels of biological organizations ranging from the genome to the ecosystem. Although a great deal of knowledge ha...read more
Citations
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First insights into the molecular population structure and origins of the invasive Chinese sleeper, Perccottus glenii, in Europe
Joanna Grabowska,Yuriy Kvach,Tomasz Rewicz,Mihails Pupins,Iuliia Kutsokon,Ihor Dykyy,László Antal,Grzegorz Zięba,Vytautas Rakauskas,Teodora Trichkova,Andris Čeirāns,Michał Grabowski +11 more
TL;DR: The study revealed that the invasive Chinese sleeper in Europe consists of at least three distinct haplogroups that may represent independent introduction events from different parts of its native area; i.e. three founding populations.
Journal ArticleDOI
Stewardship and management of freshwater ecosystems: From Leopold's land ethic to a freshwater ethic
Steven J. Cooke,Abigail J. Lynch,John Piccolo,Julian D. Olden,Julian D. Olden,Andrea J. Reid,Steve J. Ormerod +6 more
TL;DR: In this article, the authors identify key "Aldo-inspired" recommendations for protecting and restoring freshwater ecosystems in the Anthropocene that emanate directly from Leopold's writings (e.g., adopt an ecosystem approach, identify win-win-win scenarios, recognize the irreplaceability of wild waters, and strive for freshwater optimism).
Journal ArticleDOI
Urban development explains reduced genetic diversity in a narrow range endemic freshwater fish
TL;DR: Investigation of how different aspects of habitat degradation affects genetic diversity of an Australian native freshwater fish, Rhadinocentrus ornatus, and what impacts this may have on this species’ conservation status identifies three distinct genetic lineages that were allopatric at the stream level.
Journal ArticleDOI
Spatial variability in the somatic growth of pikeperch Sander lucioperca, an invasive piscivorous fish.
Emma T. Nolan,J. Robert Britton +1 more
TL;DR: These spatial patterns suggest that whilst introduced S. lucioperca can colonise new waters across a wide area, the expression of their life history traits will vary spatially, with potential implications for how invasive populations establish and integrate into native fish communities.
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Invasive brook trout disrupt the diel activity and aggregation patterns of native brown trout
Nicolas Larranaga,Magnus Lovén Wallerius,Haoyu Guo,Haoyu Guo,Julien Cucherousset,Jörgen I. Johnsson +5 more
TL;DR: In European streams, native brown trout (Salmo trutta) feed primarily on aquatic prey but consume a higher proportion of terrestrial prey in sympatry with non-native brook Trout (Salvelinus fontina...
References
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Journal ArticleDOI
Freshwater biodiversity: importance, threats, status and conservation challenges
David Dudgeon,Angela Arthington,Mark O. Gessner,Zen'ichiro Kawabata,Duncan Knowler,Christian Lévêque,Robert J. Naiman,Anne-Hélène Prieur-Richard,Doris Soto,Melanie L. J. Stiassny,Caroline A Sullivan +10 more
TL;DR: This article explores the special features of freshwater habitats and the biodiversity they support that makes them especially vulnerable to human activities and advocates continuing attempts to check species loss but urges adoption of a compromise position of management for biodiversity conservation, ecosystem functioning and resilience, and human livelihoods.
Journal ArticleDOI
Extinction by hybridization and introgression
TL;DR: Nonindigenous species can bring about a form of extinction of native flora and fauna by hybridization and introgression either through purposeful introduction by humans or through habitat modification, bringing previously isolated species into contact.
Journal ArticleDOI
Impact: Toward a Framework for Understanding the Ecological Effects of Invaders
Ingrid M. Parker,Daniel Simberloff,Karen Goodell,Marjorie J. Wonham,B. Von Holle,L. Goldwasser +5 more
TL;DR: This paper argues that the total impact of an invader includes three fundamental dimensions: range, abundance, and the per-capita or per-biomass effect of the invader, and recommends previous approaches to measuring impact at different organizational levels, and suggests some new approaches.
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The evolutionary impact of invasive species.
Harold A. Mooney,Elsa E. Cleland +1 more
TL;DR: This work explores the nature of these recent biotic exchanges and their consequences on evolutionary processes, and shows how flexibility in behavior, and mutualistic interactions, can aid in the success of invaders in their new environment.
Journal ArticleDOI
The problems with hybrids: setting conservation guidelines
TL;DR: This work provides a categorization of hybridization to help guide management decisions and recognizes that nearly every situation involving hybridization is different enough that general rules are not likely to be effective.