Publication: Evaluating temporal turnover in avian species richness in a Mediterranean semiarid region: different responses to elevation and forest cover
Authors
Jiménez Franco, María V. ; Kéry, Mark ; León Ortega, Mario ; Martinez Rodenas, Jacinto ; Robledano Aymerich, Francisco ; Esteve Selma, Miguel A. ; Calvo Sendin, José F.
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DOI
https://doi.org/10.1111/ddi.13791
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info:eu-repo/semantics/article
Description
©2024. This manuscript version is made available under the CC-BY NC-ND 4.0 license http://creativecommons.org/licenses/by nc-nd /4.0/
This document is the Published, version of a Published Work that appeared in final form in Diversity and Distributions. To access the final edited and published work see https://doi.org/10.1111/ddi.13791
Abstract
Aim: When studying the effects of global change on biodiversity, it is far more common for the effects of climate change and land-use changes to be assessed separately
rather than jointly. However, the effects of land-use changes in recent decades on
species richness in areas affected by climate change have been less studied. We assess the temporal turnover in species richness of an avian community between a historical period and a modern one as a consequence of global change.
Location: Semiarid Mediterranean ecosystem (southeastern Spain).
Method: We fitted a hierarchical multispecies occupancy model for each period
(1991–1992, and 2012–2017), obtaining avian species-specific estimates of occupancy
probability in relation to environmental covariates (elevation and forest cover). We
analyse the relationships between changes in the bird community and environmental
variables, analysing the temporal turnover of the species richness and the richnessbased species-exchange ratio.
Results: The estimated species richness accounting for detectability was higher than
observed species richness, and decreased in the more recent period. Following our
hypotheses, we observed a dual pattern of species richness increase associated with
different elevations, showing different species turnover rates due to the joint effects
of climate change and land-use change. There is a trend towards greater species richness with higher elevations that is associated with climate change, where the species
turnover rate is low. Also, species richness increased towards lower elevations, but
with a high turnover rate. The latter can be due to species expansions throughout new
habitat configurations in bordering forest systems associated with anthropic land-use
changes.
Conclusions: Our study is of great interest to understand the temporal turnover of
avian species richness associated with areas experiencing both climate and land-use
change
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Diversity and Distributions
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