Disentangling the multiple drivers of tadpole metacommunity structure in different ecoregions and multiple spatial scales

Pelinson, Rodolfo Mei; Rossa-Feres, Denise C.; Garey, Michel Varajão

doi:10.1007/s10750-022-04967-w

Cited by 3 publications

(3 citation statements)

References 65 publications

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“…Our findings reinforce that spatial scale matters and it is pivotal in understanding metacommunity dynamics across scales (Gonçalves‐Souza et al, 2014; Melchior et al, 2017; Pelinson et al, 2022; Viana & Chase, 2019). Anurans' tadpoles responded strongly to spatial environmental gradients across scales, whereas niche‐based processes (such as habitat filtering and biotic interactions) were only relevant at small spatial scales.…”

Section: Discussionsupporting

confidence: 81%

“…Furthermore, although in several organisms the spatial influence on beta diversity increases with increasing spatial extent (Melchior et al, 2017; Soininen, 2016), it has been demonstrated that anurans are spatially structured even at small spatial scales (Dalmolin et al, 2019; Provete et al, 2014). Therefore, recent studies have advocated that research combining multiple processes affecting anurans is urgent to advance the comprehension about one of the most endangered taxa in the world (Melchior et al, 2017; Pelinson et al, 2022). Additionally, amphibians are ectothermic, possess permeable skin and have eggs without shells.…”

Section: Introductionmentioning

confidence: 99%

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Explaining the anuran beta diversity by pond‐living tadpoles: the role of dispersal limitation and environmental gradients through multiple scales

Garey,

Gonçalves‐Souza,

Nomura

et al. 2023

Diversity and Distributions

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AimDetermining drivers of beta diversity is a hugely complex task, as it involves processes acting synergistically across multiple scales. We employed a large‐scale standardized protocol to tease apart the environmental and spatial processes driving beta diversity patterns of pond‐living tadpoles across multiple scales.LocationPonds distributed across 5000,000 km2 in five Brazilian biomes (Amazon, Atlantic Forest, Caatinga, Cerrado and Pantanal).MethodsWe sampled tadpoles in three to eight locations in each biome and eight to 61 ponds per location. We used partial distance‐based redundancy analyses with variation partitioning to assess the relative influence of environmental and spatial variables on beta diversity, which was estimated using the Raup–Crick index. We applied the same statistical protocol to the analyses conducted at the three spatial scales (metacommunity, regional and subcontinental), consistently maintaining the same grain while increasing the geographic extent.ResultsSpatially structured environmental variation was the most important driver of anuran beta diversity. At the regional scale, the spatial component was as important as spatially structured environmental variation, and the environmental component was the most important at the metacommunity scale. Narrow‐ranged and widespread species responded equally to environmental variables, but spatially structured environmental variation was more important to widespread species and pure spatial component was more important to narrow‐ranged species.Main ConclusionsOur results demonstrate that spatial scale plays a role in understanding the dispersal‐ and niche‐based processes that generate beta diversity patterns. Increasing the geographical extent increases the impact of spatial processes and the influence of environmental factors on anuran beta diversity through spatially structured environmental variation. Even under different environmental conditions, narrow‐ranged and widespread species respond in a consistent manner to environmental and spatial dynamics, showing consistent responses to niche‐ and dispersal processes. This evidence can offer important guidelines for their conservation even for large‐scale management that includes multiple biomes.

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Section: Discussionsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Explaining the anuran beta diversity by pond‐living tadpoles: the role of dispersal limitation and environmental gradients through multiple scales

Garey,

Gonçalves‐Souza,

Nomura

et al. 2023

Diversity and Distributions

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“…Novel studies on herpetofauna communities in modified tropical landscapes are necessary to elucidate species' sensitivity to disturbed environments (Ganci et al 2022). Since community response to environmental modification might have regional-dependent characteristics (Pelinson et al 2022), these studies can provide data that increase conservation planning and action on a regional and local scale (Palmeirim et al 2017, Figueiredo et al 2019.…”

Section: Introductionmentioning

confidence: 99%

Amphibians and reptiles of the Refúgio Biológico Bela Vista – Itaipu Dam, state of Paraná, southern Brazil

Vicente-Ferreira,

do Nascimento,

Batista

et al. 2024

Biota Neotrop.

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Information regarding species occurrence is fundamental to understanding biodiversity distribution. However, the biodiversity from the west of the state of Paraná has been historically less studied, especially amphibians and reptiles. For this reason, we present the first reptile list of species from the west of the state of Paraná and extend the current list of anurans for the municipality of Foz do Iguaçu. The species list was based on a systematic field study conducted at Refúgio Biológico Bela Vista (RBV) a conservation area within the Hydroelectric Power Itaipu Binacional. We integrated the species list with previous species observations available in the literature for the same place where our sampling was conducted. A total of 41 species of amphibians and reptiles are presented. All amphibians species found were recorded in the field; however, from the 22 species of reptiles recorded, three were historical records obtained before this study. Species were all classified as Least Concern and/or had stable populational status according to the IUCN. Sampling sufficiency was achieved for anurans but not for reptiles, probably due to low abundance of several snake species. The most abundant species of anuran was Dendropsophus nanus, from the Hylidae family, whereas Leptodactylus plaumanni and Scinax squalirostris were represented by only one individual each. The lizard Salvator merianae was the most abundant reptile, and seven species were represented by only one individual each. The most successful sampling method for adult anurans was active search in water bodies whereas most of reptile species were observed by accidental encounters and not through a systematic sampling method. We found that herpetofauna composition from RBV was similar to other communities from Paraná state that also occur within the Semideciduous Seasonal Forest. Finally, as additional information to the species list, we offer species identification keys and discuss the importance of Refúgio Biológico Bela Vista to harbor the anuran and reptile diversity of the region.

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Odonata responses to dispersal and niche processes differ across Amazonian endemism regions

Brito,

Cottenie,

Cruz

et al. 2024

Insect Conserv Diversity

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Niche and dispersal‐based processes govern freshwater communities, such as aquatic insects, shaping their distribution and establishment in the environment. So, we aimed to address the relative influence of niche and dispersal‐based processes on Odonata diversity in Amazonian freshwater systems, and the influence of species dispersal functional traits on their longitudinal and latitudinal ranges. We used the Dispersal‐Niche Continuum Index (DNCI) to test (i) regions more distant would present a prevalence of dispersal‐based processes, and (ii) different patterns would come from the two Odonata suborders; and by applying generalised linear models, we tested (iii) dispersal‐related functional traits from the suborders would influence latitudinal and longitudinal midpoints of the species. We found that more distant regions had lower values of pairwise Dispersal–Niche Continuum, mainly for Zygoptera, corroborating our first hypothesis. Moreover, Zygoptera also presented the lowest absolute values of Dispersal–Niche Continuum and Anisoptera presented a joint influence of niche and dispersal‐based processes, agreeing with our second hypothesis. Only Zygoptera presented a significant association between dispersal functional traits and longitudinal midpoints, corroborating our third hypothesis. Our results indicated a prevalence of dispersal‐related processes for Zygoptera, which can be explained by massive geographical barriers, such as the rivers, and their narrow physiological and ecological tolerance. Moreover, dispersal‐related traits demonstrated significant influence on longitudinal midpoints of Zygoptera, a scenario that the presence of the rivers may explain. A better understanding of the prevalent predictors of the species and how their dispersal ability governs their distribution has conservational implications.

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Disentangling the multiple drivers of tadpole metacommunity structure in different ecoregions and multiple spatial scales

Cited by 3 publications

References 65 publications

Explaining the anuran beta diversity by pond‐living tadpoles: the role of dispersal limitation and environmental gradients through multiple scales

Explaining the anuran beta diversity by pond‐living tadpoles: the role of dispersal limitation and environmental gradients through multiple scales

Amphibians and reptiles of the Refúgio Biológico Bela Vista – Itaipu Dam, state of Paraná, southern Brazil

Odonata responses to dispersal and niche processes differ across Amazonian endemism regions

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