Erosion of tropical bird diversity over a century is influenced by abundance, diet and subtle climatic tolerances

Abstract Human alteration of landscapes leads to attrition of biodiversity. Recommendations for maximizing retention of species richness typically focus on protection and preservation of large habitat patches. Despite a century of protection from human disturbance, 27% of the 228 bird species initia...

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Autores principales:	Jenna R. Curtis, W. Douglas Robinson, Ghislain Rompré, Randall P. Moore, Bruce McCune
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2cd8e674bd8d41ac951dfb2bb69d6b98
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spelling	oai:doaj.org-article:2cd8e674bd8d41ac951dfb2bb69d6b982021-12-02T16:58:20ZErosion of tropical bird diversity over a century is influenced by abundance, diet and subtle climatic tolerances10.1038/s41598-021-89496-72045-2322https://doaj.org/article/2cd8e674bd8d41ac951dfb2bb69d6b982021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89496-7https://doaj.org/toc/2045-2322Abstract Human alteration of landscapes leads to attrition of biodiversity. Recommendations for maximizing retention of species richness typically focus on protection and preservation of large habitat patches. Despite a century of protection from human disturbance, 27% of the 228 bird species initially detected on Barro Colorado Island (BCI), Panama, a large hilltop forest fragment isolated by waters of Gatun Lake, are now absent. Lost species were more likely to be initially uncommon and terrestrial insectivores. Analyses of the regional avifauna, exhaustively inventoried and mapped across 24 subregions, identified strong geographical discontinuities in species distributions associated with a steep transisthmian rainfall gradient. Having lost mostly species preferring humid forests, the BCI species assemblage continues to shift from one originally typical of wetter forests toward one now resembling bird communities in drier forests. Even when habitat remnants are large and protected for 100 years, altered habitat characteristics resulting from isolation produce non-random loss of species linked with their commonness, dietary preferences and subtle climatic sensitivities.Jenna R. CurtisW. Douglas RobinsonGhislain RompréRandall P. MooreBruce McCuneNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jenna R. Curtis W. Douglas Robinson Ghislain Rompré Randall P. Moore Bruce McCune Erosion of tropical bird diversity over a century is influenced by abundance, diet and subtle climatic tolerances
description	Abstract Human alteration of landscapes leads to attrition of biodiversity. Recommendations for maximizing retention of species richness typically focus on protection and preservation of large habitat patches. Despite a century of protection from human disturbance, 27% of the 228 bird species initially detected on Barro Colorado Island (BCI), Panama, a large hilltop forest fragment isolated by waters of Gatun Lake, are now absent. Lost species were more likely to be initially uncommon and terrestrial insectivores. Analyses of the regional avifauna, exhaustively inventoried and mapped across 24 subregions, identified strong geographical discontinuities in species distributions associated with a steep transisthmian rainfall gradient. Having lost mostly species preferring humid forests, the BCI species assemblage continues to shift from one originally typical of wetter forests toward one now resembling bird communities in drier forests. Even when habitat remnants are large and protected for 100 years, altered habitat characteristics resulting from isolation produce non-random loss of species linked with their commonness, dietary preferences and subtle climatic sensitivities.
format	article
author	Jenna R. Curtis W. Douglas Robinson Ghislain Rompré Randall P. Moore Bruce McCune
author_facet	Jenna R. Curtis W. Douglas Robinson Ghislain Rompré Randall P. Moore Bruce McCune
author_sort	Jenna R. Curtis
title	Erosion of tropical bird diversity over a century is influenced by abundance, diet and subtle climatic tolerances
title_short	Erosion of tropical bird diversity over a century is influenced by abundance, diet and subtle climatic tolerances
title_full	Erosion of tropical bird diversity over a century is influenced by abundance, diet and subtle climatic tolerances
title_fullStr	Erosion of tropical bird diversity over a century is influenced by abundance, diet and subtle climatic tolerances
title_full_unstemmed	Erosion of tropical bird diversity over a century is influenced by abundance, diet and subtle climatic tolerances
title_sort	erosion of tropical bird diversity over a century is influenced by abundance, diet and subtle climatic tolerances
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2cd8e674bd8d41ac951dfb2bb69d6b98
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Erosion of tropical bird diversity over a century is influenced by abundance, diet and subtle climatic tolerances

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