Shortfalls in our understanding of the causes and consequences of functional and phylogenetic variation of freshwater communities across continents

Biological Conservation, Journal Year: 2023, Volume and Issue: 282, P. 110082 - 110082

Published: April 23, 2023

Freshwater ecosystems harbour a disproportionately high biodiversity relative to their area, being also one of the most threatened ecosystem types worldwide. However, our capacity design evidence-based conservation plans for this realm is restricted by all shortfalls that have been recognized so far. In context, paucity comparable field data and information on traits phylogenies freshwater organisms should be emphasized. Here, we highlight how increased knowledge could gained where aim at in research functional phylogenetic features communities. First, attempts combine datasets from different sources pay careful attention harmonization. Second, more effort focused natural history observations species habitats life histories, providing backbone multi-trait databases. Third, fully resolved would required deciphering evolutionary relationships organisms. Provided these three hurdles can overcome, conducting studies local communities across continental spatial extents pave way mapping functionally important evolutionarily valuable areas habitats.

Language: Английский

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Species invasiveness and community invasibility of North American freshwater fish fauna revealed via trait-based analysis

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: April 22, 2023

Abstract While biological invasions are recognized as a major threat to global biodiversity, determining non-native species’ abilities establish in new areas (species invasiveness) and the vulnerability of those (community invasibility) is challenging. Here, we use trait-based analysis profile invasive species quantify community invasibility for >1,800 North American freshwater fish communities. We show that, addition effects attributed propagule pressure caused by human intervention, with higher fecundity, longer lifespan larger size tend be more invasive. Community peaks when functional distance among native was high, leaving unoccupied space establishment potential invaders. Our findings illustrate how traits their invasiveness, characteristics invaded its invasibility, may identified. Considering two determinants together will enable better predictions invasions.

Language: Английский

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A global analysis of the introduction pathways and characteristics associated with non-native fish species introduction, establishment, and impacts

Ecological Processes, Journal Year: 2024, Volume and Issue: 13(1)

Published: March 12, 2024

Abstract Background The invasion success of introduced freshwater fishes is influenced by many factors, including ecological, species, and socioeconomic characteristics. Most studies that document the importance these characteristics are conducted at local scales and/or focus on a single step process. In this study, we aim to determine species characteristics, ecological non-native fish invasions. Our assessment was done global scale considers all three steps (i.e., introduction, establishment, impact). For purpose, applied generalized linear models 20 variables collected for 307 modeled them as function environmental features), traits functional morphological), human use introduction pathways). We considered number countries in which each introduced, established, or had impacts proxy success. also explored specifics through aquaculture ornamental trade pathways. Results found with broad diets, high parental care, multiple pathways most widely established worldwide. reported best explained type pathway fisheries). Moreover, among aquaculture, those belonging Cypriniformes having diets were species. contrast, belonged various taxonomic orders but mainly native tropical regions. Conclusions Considering several types factors important when analyzing disentangling different steps. These findings have strong implications anticipating profile potential invade countries.

Language: Английский

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Boosting freshwater fish conservation with high‐resolution distribution mapping across a large territory

Conservation Biology, Journal Year: 2022, Volume and Issue: 37(3)

Published: Nov. 25, 2022

Abstract The lack of high‐resolution distribution maps for freshwater species across large extents fundamentally challenges biodiversity conservation worldwide. We devised a simple framework to delineate the distributions fishes in drainage map based on stacked models and expert information. applied this entire Chinese fish fauna (>1600 species) examine patterns reveal potential conflicts between anthropogenic disturbances. correlations spatial facets (species richness, endemicity, phylogenetic diversity) were all significant ( r = 0.43–0.98, p < 0.001). Areas with high values different overlapped Existing protected areas (PAs), covering 22% China's territory, 25–29% habitats, 16–23% species, 30–31% priority areas. Moreover, 6–21% completely unprotected. These results suggest need extending network PAs ensure goods services they provide. Specifically, middle low reaches rivers their associated lakes from northeast southwest China hosted most diverse assemblages thus should be target future expansions PAs. More generally, our framework, which can used draw combining occurrence data knowledge distribution, provides an efficient way design regardless ecosystem, taxonomic group, or region considered.

Language: Английский

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Accelerated body size evolution in upland environments is correlated with recent speciation in South American freshwater fishes

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Sept. 28, 2023

Speciation rates vary greatly among taxa and regions are shaped by both biotic abiotic factors. However, the relative importance interactions of these factors not well understood. Here we investigate potential drivers speciation in South American freshwater fishes, most diverse continental vertebrate fauna, examining roles multiple We integrate a dataset on species geographic distribution, phylogenetic, morphological, climatic, habitat data. find that Late Neogene-Quaternary events strongly associated with body-size evolution, particularly lineages small body sizes inhabit higher elevations near periphery. Conversely, effects temperature, area, diversity-dependence, often thought to facilitate speciation, negligible. By evaluating simultaneously, demonstrate characteristics elevation, as size correlate rapid fishes. Our study emphasizes integrative approaches consider interplay generating macroecological patterns diversity.

Language: Английский

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Exotic fishes that are phylogenetically close but functionally distant to native fishes are more likely to establish

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(19), P. 5683 - 5694

Published: July 29, 2022

Since Darwin's time, degree of ecological similarity between exotic and native species has been assumed to affect the establishment success or failure species. However, a direct test effect exotic-native on exotics is scarce because difficulty in recognizing failures establish field. Here, using database fish introduced into 673 freshwater lakes, we evaluate fishes by combining phylogenetic functional information. We illustrate that, relative other biotic abiotic factors, similarities were most important correlates establishment. While resident promoted successful establishment, led become established. Those phylogenetically close to, but functionally distant from, likely successfully. Our findings provide perspective reconcile naturalization conundrum suggest while relatedness allows pre-adapt better novel environments, they need possess distinct traits reduce competition with

Language: Английский

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Relative importance of exotic species traits in determining invasiveness across levels of establishment: Example of freshwater fish

Functional Ecology, Journal Year: 2023, Volume and Issue: 37(9), P. 2358 - 2370

Published: June 26, 2023

Abstract Understanding the factors responsible for success of exotic species is a prevalent issue in invasion biology. Although ecological traits are known to play major role, it still unknown which different dimensions invasiveness among vertebrates. Here, we assessed ecological, morphological and behavioural profile 222 freshwater fish along levels establishment, defined by number basins established location establishment. Using trait‐based multidimensional space complemented trait‐by‐trait analysis, attempted classified vertebrates given their intrinsic across establishment ranging from with low super‐established species. We found that were clustered trait space, showing similar characterized low‐temperature amplitude, no parental care zoobenthic diet. By contrast, had broader range functional strategies, high proportion having multiple diets level care. Overall, overlap other at higher Our findings highlight importance considering variability species' more accurately anticipate ability establish spread. Read free Plain Language Summary this article on Journal blog.

Language: Английский

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How do fish functional traits respond to dams at the global scale?

Hydrobiologia, Journal Year: 2023, Volume and Issue: unknown

Published: Feb. 9, 2023

Language: Английский

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A global dataset on species occurrences and functional traits of Schizothoracinae fish

Scientific Data, Journal Year: 2024, Volume and Issue: 11(1)

Published: March 6, 2024

Abstract The Schizothoracinae fish are a natural group of cyprinids widely distributed in rivers and lakes the Qinghai-Tibetan Plateau (QTP) adjacent regions. These parallelly evolved with QTP uplift thus important for uncovering geological history, paleoclimatic environment, mechanisms functional adaptation to environmental change. However, dataset including species occurrences traits, which essential resolving above issues guiding relevant conservation, remains unavailable. To fill this gap, we systematically compiled comprehensive on traits from our long-term field samplings various sources (e.g., publications online databases). includes 7,333 occurrence records 3,204 32 covering all genera (i.e., 12 125 or subspecies). Sampling spanned over 180 years. This will serve as valuable resource future research evolution, historical biogeography, responses change, conservation fish.

Language: Английский

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Functional dissimilarity correlates to the co-occurrence patterns of native and non-native species

Biological Invasions, Journal Year: 2024, Volume and Issue: 26(8), P. 2475 - 2487

Published: May 30, 2024

Language: Английский

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