Contrasting fundamental and realized niches: two fishes with similar thermal performance curves occupy different thermal habitats

Allen‐Ankins, Slade; Stoffels, Rick J.

doi:10.1086/693134

Cited by 19 publications

(20 citation statements)

References 112 publications

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“…Hydrology can be an important driver of interspecific differences in swimming performance along a stream-size gradient in other systems. Higher sustained swimming performance has been observed in headwater salmonids in Japanese streams (Morita et al ., 2016) and in Australian blackfishes (Allen-Ankins and Stoffels, 2017) when compared to a downstream species. Since both temperature and hydrology vary along gradients of stream size, this emphasizes the importance of considering the influence of both variables on species distributions due to the covarying nature of these habitat conditions along the river continuum.…”

Section: Discussionmentioning

confidence: 99%

“…Unless otherwise noted, fish were fed a daily ration of commercial flake food and dried bloodworms. Fish were fasted for 48 h prior to their use in experiments to ensure a post-absorptive state (Allen-Ankins and Stoffels, 2017).…”

Section: Methodsmentioning

confidence: 99%

“…We used two-way analysis of covariance (ANCOVA) to test for differences in CTM. We included acclimation temperature (treatment) and species as fixed factors and body size (mm TL) as a covariate (Angilletta, 2006; Allen-Ankins and Stoffels, 2017). Post hoc independent samples t -tests with a Bonferroni corrected significance threshold of α = 0.01 were conducted to compare the CTM of dace and stonerollers in each temperature treatment.…”

Section: Methodsmentioning

confidence: 99%

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Temperature effects on performance and physiology of two prairie stream minnows

Frenette

Bruckerhoff

Tobler

et al. 2019

Conservation Physiology

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Temperature effects on performance and physiology of two prairie stream minnows

Frenette

Bruckerhoff

Tobler

et al. 2019

Conservation Physiology

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“…Laterally, thermal regimes of habitats vary among the lotic (flowing channels) and lentic (e.g., oxbow lakes) habitats of the riverscape (Tonolla et al 2010); among lentic water bodies on a floodplain (Tonolla et al 2010;Stoffels et al 2017); and among habitats within the channel itself, even on a scale of metres (Wawrzyniak et al 2013;Dugdale et al 2015;Baldock et al 2016). Longitudinally, strong thermal gradients occur on a scale of kilometres within rivers (Caissie 2006;Fullerton et al 2015;Stoffels et al 2016;Allen-Ankins and Stoffels 2017). At yet larger spatial scales, variation in both geomorphology and orientation (hence solar radiation) and the influence of snowmelt and groundwater generates spatial heterogeneity in thermal regimes across rivers within catchments (Lisi et al 2015;Snyder et al 2015;Eschbach et al 2017).…”

Section: Temperaturementioning

confidence: 99%

Riverscape recruitment: a conceptual synthesis of drivers of fish recruitment in rivers

Humphries

King

McCasker

et al. 2020

Can. J. Fish. Aquat. Sci.

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Most fish recruitment models consider only one or a few drivers in isolation, rarely include species’ traits, and have limited relevance to riverine environments. Despite their diversity, riverine fishes share sufficient characteristics that prediction of recruitment should be possible. Here we synthesize the essential components of fish recruitment hypotheses and the key features of rivers to develop a model that predicts relative recruitment strength, for all fishes, in rivers under all flow conditions. The model proposes that interactions between flow and physical complexity will create locations in rivers, at mesoscales, where energy and nutrients are enriched. The resultant production of small prey will be concentrated and prey and fish larvae located (through dispersal or retention) so that the larvae can feed, grow, and recruit. Our synthesis explains how flow and physical complexity affect fish recruitment and provides a conceptual basis to better conserve and manage riverine fishes globally.

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“…Also, adding range-limiting processes to ENMs allows to differentiate analog and non-analog conditions (Glossary S1) between the native and invaded ranges, and to identify environmental conditions that are not currently available but could be in the future (Jackson & Overpeck, 2000). However, studies contrasting fundamental and realized niche models in shaping the geographic range limits and niche changes are scarce (but see Soberón & Arroyo-Peña, 2017 for a meta-analysis; Rodrigues, Coelho & Ribeiro, 2018 and Allen-Ankins & Stoffels, 2017 for analyses of thermal niches). Much less has been investigated regarding invasive species (Rödder et al, 2009; Tingley et al, 2014), likely as a result of limited information on physiological responses, thus attempts to estimate niche changes could render erroneous conclusions.…”

Section: Introductionmentioning

confidence: 99%

Fundamental niche unfilling and potential invasion risk of the slider turtle Trachemys scripta

Espindola

Parra

Vázquez‐Domínguez

2019

PeerJ

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Background How species colonize new environments is still a fundamental question in ecology and evolution, assessable by evaluating range characteristics of invasive species. Here we propose a model approach to evaluate environmental conditions and species features to predict niche changes in non-equilibrium contexts. It incorporates potentially range-limiting processes (fundamental niche), hence allowing for better predictions of range shifts, differentiation of analog and non-analog conditions between the native and non-native (invaded) ranges, and identification of environmental conditions not currently available but likely in the future. We apply our approach with the worldwide invasive slider-turtle Trachemys scripta. Methods We estimated the native and non-native realized niches of T. scripta and built its fundamental niche based on key features of the turtle’s temperature physiological tolerance limits and survival-associated factors. We next estimated response functions adjusted to the physiological predictor variables and estimated habitat suitability values, followed by a comprehensive set of analyses and simulations to compare the environmental conditions occupied by T. scripta (at its native and non-native ranges). Results Climatic space analysis showed that the T. scripta’s non-native realized niche is 28.6% greater than the native one. Response curves showed that it does not use its entire range of temperature tolerances (density curves for native: 5.3–23.7 °C and non-native: 1.7–28.4 °C ranges). Whether considering the mean temperature of the warmest or the coldest quarter, it occupies a wider range of temperatures along its non-native distribution. Results of the response curves for worldwide (global) and across Mexico (regional) comparisons showed it occupies analog and non-analog conditions between its native and invaded ranges, exhibiting also unoccupied suitable climatic conditions. Discussion We demonstrate that T. scripta occupies a wider subset of its fundamental niche along its non-native range (within its physiological tolerances), revealing that the species observed niche shift corresponds to a different subset of its fundamental niche (niche unfilling). We also identified suitable environmental conditions, globally and regionally, where the slider turtle could potentially invade. Our approach allows to accurately predict niche changes in novel or non-equilibrium contexts, which can improve our understanding about ecological aspects and geographic range boundaries in current and potential invasions.

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Contrasting fundamental and realized niches: two fishes with similar thermal performance curves occupy different thermal habitats

Cited by 19 publications

References 112 publications

Temperature effects on performance and physiology of two prairie stream minnows

Temperature effects on performance and physiology of two prairie stream minnows

Riverscape recruitment: a conceptual synthesis of drivers of fish recruitment in rivers

Fundamental niche unfilling and potential invasion risk of the slider turtle Trachemys scripta

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