Patterns and drivers of genetic diversity among Felidae species

Azizan, Amira; Paradis, Emmanuel

doi:10.1007/s10531-020-02103-5

Cited by 5 publications

(8 citation statements)

References 69 publications

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“…As shown previously (Azizan & Paradis, 2021), species with short generation length had lower GD than species with long generation length, which is inconsistent with our prediction. Our findings suggested that when all species experience population decrease, those with short generation lengths are more sensitive to genetic erosion and inbreeding because their populations respond to ecological changes faster than those with long generation lengths (Daskalova et al, 2020).…”

Section: F I G U R Econtrasting

confidence: 99%

“…These additional studies provided data for Geoffroy's cat (Leopardus geoffroyi) (Bou et al, 2021), puma (Gallo et al, 2020;Zanin et al, 2021), European lynx (Herrero et al, 2021), jaguars (Kantek et al, 2021;Zanin et al, 2021), snow leopard (Korablev et al, 2021;, bobcat (Cancellare et al, 2021;Miller-Butterworth et al, 2021) and leopard . Detailed methods for assembling this data set can be found elsewhere (Azizan & Paradis, 2021).…”

Section: Gd Datamentioning

confidence: 99%

“…These two data sets, hereby referred to as cluster and country data sets, respectively, were analysed separately using linear mixed‐effects (LME) models to estimate a common slope for the PD effect on GD and to fit species as a random intercept. Because generation length (days), the mean number of individuals sampled for GD estimates (sample size) and body mass (kg) are critical variables in determining GD (Azizan & Paradis, 2021) and PD (Anile & Devillard, 2018, 2020), we examined whether these covariates affect the GD and PD relationship and could increase the predictive ability of our models.…”

Section: Introductionmentioning

confidence: 99%

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Population density and genetic diversity are positively correlated in wild felids globally

Azizan

Anile

Nielsen

et al. 2023

Global Ecol Biogeogr

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AimInsights into the biological and evolutionary traits of species, and their ability to cope with global changes, can be gained by studying genetic diversity within species. A cornerstone hypothesis in evolutionary and conservation biology suggests that genetic diversity decreases with decreasing population size, however, population size is difficult to estimate in threatened species with large distribution ranges, and evidence for this is limited to few species. To address this gap, we tested this hypothesis across multiple closely related species at a global scale using population density which is a more accessible measure.LocationGlobal.Time PeriodContemporary.Major Taxa StudiedWild felids in their natural habitats.MethodsWe obtained data from published estimates of population density assessed via camera trap and within‐population genetic diversity generated from microsatellite markers on 18 felid species across 41 countries from 354 studies. We propose a novel method to standardize population density estimates and to spatially join data using K‐means clustering. Linear mixed‐effect modelling was applied to account for confounding factors such as body mass, generation length and sample size used for the genetic estimates.ResultsWe found a significant positive correlation between population density and genetic diversity, particularly observed heterozygosity and allelic richness. While the confounding factors did not affect the main results, long generation length and large sample size were significantly associated with high genetic diversity. Body mass had no effect on genetic diversity, likely because large‐bodied species were over‐represented in our data sets.Main ConclusionsOur study emphasizes how recent demographic processes shape neutral genetic diversity in threatened and small populations where extinction vortex is a risk. Although caution is needed when interpreting the small population density effect in our findings, our methodological framework shows promising potential to identify which populations require actions to conserve maximal genetic variation.

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Section: F I G U R Econtrasting

confidence: 99%

Section: Gd Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Population density and genetic diversity are positively correlated in wild felids globally

Azizan

Anile

Nielsen

et al. 2023

Global Ecol Biogeogr

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“…Taking advantage of the large number of population genetics datasets available, ‘macrogenetics’ recently emerged with the objective to identify general and repeated features in the genetic patterns in many species and across large spatial scales (Blanchet et al, 2017). In this way, life‐history traits (e.g., longevity; Azizan & Paradis, 2021) and biogeographic factors (e.g., core versus periphery of species distribution ranges) were identified as important drivers underlying macroscale genetic patterns in terrestrial plants and animals (De Kort et al, 2021). The impact of latitude was shown to vary among taxa (Lawrence & Fraser, 2020; Millette et al, 2020; Miraldo et al, 2016), contrasting with the prevalence of the latitudinal gradient in terrestrial species richness (Gaston, 2000).…”

Section: Introductionmentioning

confidence: 99%

Global patterns and drivers of genetic diversity among marine habitat‐forming species

Figuerola‐Ferrando

Felpeto

Montero‐Serra

et al. 2023

Global Ecol Biogeogr

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Aim: Intraspecific genetic diversity is one of the pillars of biodiversity, supporting the resilience and evolutionary potential of populations. Yet, our knowledge regarding the patterns of genetic diversity at macroecological scales, so-called macrogenetic patterns, remains scarce, particularly in marine species. Marine habitat-forming (MHF) species are key species in some of the most diverse but also most impacted marine ecosystems, such as coral reefs and marine forests. We characterize the patterns and drivers of genetic diversity in MHF species and provide a macrogenetic baseline, which can be used for conservation planning and for future genetic monitoring programmes. Location: Global.Time period: Contemporary.

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“…We believe that taxon‐specific features can explain this outcome. Body sizes show a negative relationship to GD in many mammals, birds and fish species (Eo et al, 2011; Kort et al, 2021; Mitton & Lewis Jr, 1989; Wooten & Smith, 1985); alternatively, some studies also do not support this affirmation (Azizan & Paradis, 2021; Doyle et al, 2015; James & Eyre‐Walker, 2020; Kort et al, 2021). This might indicate a possible taxon‐specific lack of body size‐GD correlation.…”

Section: Discussionmentioning

confidence: 99%

Demographic changes and life‐history strategies predict the genetic diversity in crabs

Peres

Mantelatto

2022

J of Evolutionary Biology

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Uncovering what predicts genetic diversity (GD) within species can help us access the status of populations and their evolutionary potential. Traits related to effective population size show a proportional association to GD, but evidence supports life‐history strategies and habitat as the drivers of GD variation. Instead of investigating highly divergent taxa, focusing on one group could help to elucidate the factors influencing the GD. Additionally, most empirical data is based on vertebrate taxa; therefore, we might be missing novel patterns of GD found in neglected invertebrate groups. Here, we investigated the predictors of the GD in crabs (Brachyura) by compiling the most comprehensive cytochrome c oxidase subunit I (COI) available. Eight predictor variables were analysed across 150 species (16 992 sequences) using linear models (multiple linear regression) and comparative methods (PGLS). Our results indicate that population size fluctuation represents the most critical trait predicting GD, with species that have undergone bottlenecks followed by population expansion showing lower GD. Egg size, pelagic larval duration and habitat might play a role probably because of their association with how species respond to disturbances. Ultimately, K‐strategists that have undergone bottlenecks are the species showing lower GD. Some variables do not show an association with GD as expected, most likely due to the taxon‐specific role of some predictors, which should be considered in further investigations and generalizations. This work highlights the complexity underlying the predictors of GD and adds results from a marine invertebrate group to the current understanding of this topic.

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Patterns and drivers of genetic diversity among Felidae species

Cited by 5 publications

References 69 publications

Population density and genetic diversity are positively correlated in wild felids globally

Population density and genetic diversity are positively correlated in wild felids globally

Global patterns and drivers of genetic diversity among marine habitat‐forming species

Demographic changes and life‐history strategies predict the genetic diversity in crabs

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