Temporal changes in the potential geographic distribution of Histiotus velatus (Chiroptera, Vespertilionidae), the “decade effect”
Carregando...
Data
2021
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
We investigated how the potential distribution of Histiotus velatus is affected by the
addition of new records over decades (decade effect). Assuming that (1: hypothesis of
the effect of the decade) the addition of new occurrence records over time increases
the potential size of the species distribution; and (2: Wallacean distance hypothesis)
over the years, the new points added are increasingly distant from the research centers.
Considering the geographic knowledge gap of this species, our objective is to
report a new record of this species and estimate its potential distribution in South
America through environment niche models (ENMs). For this, we compiled records
of occurrence of species, selected from 1900 to 2015. We used 19 bioclimatic variables
available in the WorldClim database to estimate the potential distribution of the
species, and we used three modeling algorithms: Maximum Entropy (MXT), Random
Forest (RDF), and Support Vector Machine. To test the Wallacean distance hypothesis,
we calculated the Euclidian distance from occurrences to bat research centers in
Brazil, located using a national researchers’ information dataset (“Plataforma Lattes”).
To test the hypothesis of the decade effect, we used the beta regression analysis,
taking conservative and non-conservative
approaches. The results showed that the
predicted area expanded and retracted with the addition of new occurrences over
the decades, with an improvement in the accuracy of models. Most records are located
in the southeastern region of Brazil, but algorithms predicted areas in regions where there are no records. Only the conservative approach has had a positive relationship
over the decades. The distance from new points does not increase over the
years of research centers.
Descrição
Palavras-chave
Conservation, Wallacean deficit, Ecological niche modeling, Species occurrence, Research center, Species distribution models
Citação
SILVA, Liriann Chrisley da et al. Temporal changes in the potential geographic distribution of Histiotus velatus (Chiroptera, Vespertilionidae), the “decade effect”. Ecology and Evolution, London, v. 11, n. 23, p. 16972-16980, 2021.