How do bat, rodent, and marsupial communities respond to spatial and environmental gradients? Insights from a deconstruction of mammal beta diversity from the Atlantic Forest of South America

Varzinczak, Luiz H.; Moura, Maurício Osvaldo; Lima, Camila S.; Passos, Fernando C.

doi:10.1007/s00442-018-4288-y

Cited by 14 publications

(16 citation statements)

References 48 publications

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“…The average BD and its components, BD turn and BD nest , found among bat faunas in our regional scale was similar to that found in the overall Atlantic Forest, with the turnover component being lager than the nestedness component (Varzinczak et al 2018). These results indicate that at both scales, the Guarapuava highlands region and the Atlantic forest biome, the bat community assembly is a result of species replacement (i.e., species turnover) among communities instead of species loss.…”

Section: Discussionsupporting

confidence: 79%

Bat Fauna (Mammalia, Chiroptera) From Guarapuava Highlands, Southern Brazil

et al. 2019

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Here, we present an updated list of bats from Guarapuava highlands, center-southern of Paraná state, southern Brazil. This species list is based on four literature records (secondary data) and data from fieldwork (primary data) in three localities. All species recorded (primary and secondary data) were evaluated by the relative frequency and their conservation status were assessed. The species recorded from fieldwork were also evaluated by relative abundance. A beta diversity analysis was done to verify dissimilarities in the bat fauna among the seven localities. We recorded 28 species in the Guarapuava highlands (14 Vespertilionidae, 10 Phyllostomidae and 4 Molossidae), of which, eight are new records for the region. Sturnira lilium was the most abundant in three localities (primary data), and the most frequent species in all studies (primary and secondary data). Only four species were classified globally as "Near Threatened" or "Data Deficient", nevertheless they were frequent in this region. The mean regional beta diversity was 0.72, what could be mostly explained by turnover (0.64) rather than by nestedness (0.08). The greatest species richness of the family Vespertilionidae is a common pattern in subtropical and temperate regions as in highlands and mountains. As turnover was the main component of the beta diversity, the communities seemed to be structured mainly by replacement of species among the studied localities. The Guarapuava highlands present a diverse bat fauna, however, this region requires more sampling effort to become well known.

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Section: Discussionsupporting

confidence: 79%

Bat Fauna (Mammalia, Chiroptera) From Guarapuava Highlands, Southern Brazil

et al. 2019

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“…Considering the different interpretations of bat species distribution patterns (López-González et al, 2015;Stevens et al, 2007;Stevens, 2013;Varzinczak et al, 2018;Varzinczak et al, 2019) and the availability of a dataset on the occurrence of bat species within the Atlantic Forest (Muylaert et al, 2017), we evaluated the association between bat community composition and environmental and geographical variables. We did this hierarchically, first for the entire extent of the biome, and then by dividing it into three regions: north, centre and south.…”

Section: Introductionmentioning

confidence: 99%

“…For example, communities comprised of species with limited dispersal capabilities are more likely to be influenced by spatial distances (Dobrovolski et al, 2012;Varzinczak, Moura, Lima, & Passos, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…While some studies have shown that differences in communities are mainly due to differing environmental preferences (López-González, Presley, Lozano, Stevens, & Higgins, 2015;Stevens, 2013;Stevens, López-González, & Presley, 2007), a recent study has shown that spatial pattern was more effective in explaining bat diversity (Varzinczak et al, 2018), or that both factors (environmental and geographical) influenced similarity in community composition (Varzinczak et al, 2019). A possible explanation for this controversy could be the analysis scale.…”

Section: Introductionmentioning

confidence: 99%

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Beta diversity patterns of bats in the Atlantic Forest: How does the scale of analysis affect the importance of spatial and environmental factors?

Batista

Lima

2020

Journal of Biogeography

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AimEnvironmental and spatial factors are broadly recognized as important predictors of beta diversity patterns. However, the scale at which beta diversity patterns are evaluated will affect the outcoming results. For example, studies at larger scales will usually find spatial processes as the main predictor of beta diversity patterns. In this study, we evaluate how beta diversity patterns change when analyses are conducted at different scales by reducing the scale of analysis in a hierarchical manner.LocationAtlantic Forest biome.TaxonChiroptera.MethodsInformation on the occurrence of 59 bat species were obtained from the Atlantic Bats and Species Link database. We partitioned beta diversity into its two components (nestedness and turnover), and calculated these indexes hierarchically: the biome in its entirety (all ecoregions); between larger regions (north, central and south); and between ecoregions within each region. We performed a Generalized Dissimilarity Model (GDM) to identify and predict the turnover of bat species in the Atlantic Forest based on geo‐climatic predictors. We obtained 19 geo‐climatic data from AMBDATA, an environmental dataset based on different data sources commonly used in species distribution modelling.ResultsWe found that turnover was the main component influencing a latitudinal gradient when the biome was analysed in its entirety. However, when the scale of the analysis was reduced, we found that species loss (nestedness component) had a large effect in determining beta diversity dissimilarity. We also found that nestedness was the main pattern explaining beta diversity dissimilarity along a longitudinal gradient.Main conclusionsBeta diversity patterns changed with the scale of analysis, which indicates that bat species composition does not follow the same pattern throughout the Atlantic Forest. This corroborates the importance of analysing beta diversity patterns at different scales to understand how environmental dissimilarity across geographical space can influence species distribution patterns.

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“…One of the main goals of community ecology and biogeography is to describe patterns of species distribution and to unveil the role of environmental and spatial factors in these patterns (Cottenie 2005;Mittelbach 2012;Varzinczak et al 2019). Alpha and beta diversities are affected by a combination of (i) environmental filtering, where community structure is determined by species interactions and niche-based processes, and (ii) dispersal limitation, a regional assembly process that is associated with site isolation and the dispersal ability of the organisms (Spasojevic et al 2014;Heino et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Unravelling patterns of taxonomic and functional diversity of Amazon stream fish

et al. 2020

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Environmental filtering and dispersal limitation are essential processes affecting the variability of ecological communities. However, their relative contributions are highly debated and remain largely unknown in several systems, such as the hyperdiverse Amazon Basin. We determined the relative role of local, catchment, spatial, and biogeographical variables on the taxonomic and functional alpha and beta diversity of stream fish. We sampled 54 streams across six river basins in the Amazon. For each stream, we obtained 35 local habitat variables and 11 climate-catchment variables. Watercourse distances and basin identity were converted into spatial and biogeographical variables, respectively. We found that taxonomic alpha diversity responds both to spatial and local predictors, whereas its functional counterpart was mainly associated with local variables. Biogeography was the main factor structuring taxonomic and functional beta diversity, with a secondary contribution of catchment and local variables. Locally, substrate type and isolation determined the number and relative abundance of species and traits. The shared variation between biogeographical and environmental variables, especially altitude and slope, were strongly associated with beta diversity patterns, indicating a joint role of habitat filtering and dispersal limitation. Our results show the need to include both spatial and environmental variables in studies of stream communities at large spatial scales, as they are related to distinct processes that regulate community structure. We also encourage future studies to account for the responses of multiple facets of biodiversity to different drivers, as they provide essential and complementary information for community ecology and biogeography.

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How do bat, rodent, and marsupial communities respond to spatial and environmental gradients? Insights from a deconstruction of mammal beta diversity from the Atlantic Forest of South America

Cited by 14 publications

References 48 publications

Bat Fauna (Mammalia, Chiroptera) From Guarapuava Highlands, Southern Brazil

Bat Fauna (Mammalia, Chiroptera) From Guarapuava Highlands, Southern Brazil

Beta diversity patterns of bats in the Atlantic Forest: How does the scale of analysis affect the importance of spatial and environmental factors?

Unravelling patterns of taxonomic and functional diversity of Amazon stream fish

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