10.5061/DRYAD.56P0F
Oswald, Jessica A.
University of Florida
Louisiana State University
Burleigh, J. Gordon
University of Florida
Steadman, David W.
University of Florida
Robinson, Scott K.
University of Florida
Kratter, Andrew W.
University of Florida
Data from: Historical climatic variability and geographical barriers as
drivers of community composition in a biodiversity hotspot
Dryad
dataset
2016
Neotropical dry forest
Quaternary
phylogenetic beta diversity
endemism
Holocene
2016-07-24T00:00:00Z
2016-07-24T00:00:00Z
en
https://doi.org/10.1111/jbi.12605
514175 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Aim: To evaluate the roles of Quaternary (< 2.6 Ma) climatic
stability and geologic barriers (i.e. the Andes Mountains) in shaping the
modern community composition and patterns of endemism in Neotropical dry
forest bird communities. Location: Marañón Valley and Tumbes,
north-western Peru. Methods: We recorded presence and abundance of species
in six dry forest bird communities on either side of the Andes Mountains.
We used the data to calculate the beta diversity and phylogenetic beta
diversity across regional and local scales. We compared the observed
results to randomly permuted communities to determine if the communities
were significantly more or less similar than we would expect by chance.
Mantel tests evaluated whether beta diversity and phylogenetic beta
diversity measures were correlated and whether there was a correlation
between spatial distance and community diversity. Results: Bird community
composition, including abundance, is highly heterogeneous in north-western
Peru, even at relatively local scales. Communities on either side of the
Andes are significantly different based on beta diversity and phylogenetic
beta diversity. Communities subjected to more historical climatic
fluctuations share a more similar species composition than communities
that are relatively buffered from climatic change. Main conclusions: The
Andes structure dry forest bird communities in north-western Peru. Greater
community similarity in climatically unstable areas may be the product of
formerly more continuous forest and/or movement of species among
communities. In climatically stable regions, species turnover is not
different from random expectations, which may reflect habitat loss and
increased homogenization from anthropogenic landscape changes. Both the
Andes and the historical (Quaternary) climatic regimes of north-western
Peru are likely responsible for the high endemism and distributions of its
dry forest bird communities.
Oswald et al 2015 NW Peru dry forest bird census dataDry forest bird
census data from northwest Peru. Locality name, date, latitude, longitude,
elevation, species, number of individuals, and habitat (some missing data)
are included in the spreadsheet.Oswald_et_al_2015_dryad.56p0f.xlsx
Northwestern Peru
Marañón Valley
Tumbes