Cloud forest bird responses to unusually severe storm damage

In 1998, storms related to Hurricane Isis caused extensive gaps in the cloud forest of El Triunfo Biosphere Reserve in Chiapas, Mexico, where severe storms are infrequent. We examined how this disturbance affected bird species composition. Species richness and composition were similar both between pre- and post-disturbance forest and between newly created gaps and plots that remained forested after the hurricane. However, differences in response guilds were greater between pre- and post-disturbance plots than between forest plots with gaps after disturbance. Granivorous, omnivorous, and terrestrial species were more abundant before the hurricane, whereas insectivorous, midstory, and generalist foragers were more abundant after the hurricane. In addition, species with high sensitivity to disturbance were more abundant in the pre-disturbance forest, while low sensitivity species were more abundant after disturbance.

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Bibliographic Details
Main Authors: Tejeda Cruz, César Doctor autor/a 14266, Sutherland, Williams J. autor/a
Format: Texto biblioteca
Language:eng
Subjects:Desastres naturales, Bosque de niebla, Huracán Isis, 1998, Aves, Artfrosur,
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spelling KOHA-OAI-ECOSUR:403292024-07-10T11:26:31ZCloud forest bird responses to unusually severe storm damage Tejeda Cruz, César Doctor autor/a 14266 Sutherland, Williams J. autor/a textengIn 1998, storms related to Hurricane Isis caused extensive gaps in the cloud forest of El Triunfo Biosphere Reserve in Chiapas, Mexico, where severe storms are infrequent. We examined how this disturbance affected bird species composition. Species richness and composition were similar both between pre- and post-disturbance forest and between newly created gaps and plots that remained forested after the hurricane. However, differences in response guilds were greater between pre- and post-disturbance plots than between forest plots with gaps after disturbance. Granivorous, omnivorous, and terrestrial species were more abundant before the hurricane, whereas insectivorous, midstory, and generalist foragers were more abundant after the hurricane. In addition, species with high sensitivity to disturbance were more abundant in the pre-disturbance forest, while low sensitivity species were more abundant after disturbance.In the post-disturbance forest, insectivorous species were most abundant in gaps and terrestrial-canopy foragers were most abundant in forest plots. Permanently open areas had significantly lower species richness, but had lowland generalist and second-growth species not present in the cloud forest. Results suggest that changes in species composition were not limited to the newly created gaps, but also affected the whole forest. The decline of high sensitivity species after disturbance supports the hypothesis that disturbance negatively affects specialists and benefits generalist species. Although there is evidence that natural communities tend to return to pre-disturbance conditions, changes in community structure could be aggravated if recurrent hurricanes occur before succession takes place.In 1998, storms related to Hurricane Isis caused extensive gaps in the cloud forest of El Triunfo Biosphere Reserve in Chiapas, Mexico, where severe storms are infrequent. We examined how this disturbance affected bird species composition. Species richness and composition were similar both between pre- and post-disturbance forest and between newly created gaps and plots that remained forested after the hurricane. However, differences in response guilds were greater between pre- and post-disturbance plots than between forest plots with gaps after disturbance. Granivorous, omnivorous, and terrestrial species were more abundant before the hurricane, whereas insectivorous, midstory, and generalist foragers were more abundant after the hurricane. In addition, species with high sensitivity to disturbance were more abundant in the pre-disturbance forest, while low sensitivity species were more abundant after disturbance.In the post-disturbance forest, insectivorous species were most abundant in gaps and terrestrial-canopy foragers were most abundant in forest plots. Permanently open areas had significantly lower species richness, but had lowland generalist and second-growth species not present in the cloud forest. Results suggest that changes in species composition were not limited to the newly created gaps, but also affected the whole forest. The decline of high sensitivity species after disturbance supports the hypothesis that disturbance negatively affects specialists and benefits generalist species. Although there is evidence that natural communities tend to return to pre-disturbance conditions, changes in community structure could be aggravated if recurrent hurricanes occur before succession takes place.Desastres naturalesBosque de nieblaHuracán Isis, 1998AvesArtfrosurBiotropica
institution ECOSUR
collection Koha
country México
countrycode MX
component Bibliográfico
access En linea
databasecode cat-ecosur
tag biblioteca
region America del Norte
libraryname Sistema de Información Bibliotecario de ECOSUR (SIBE)
language eng
topic Desastres naturales
Bosque de niebla
Huracán Isis, 1998
Aves
Artfrosur
Desastres naturales
Bosque de niebla
Huracán Isis, 1998
Aves
Artfrosur
spellingShingle Desastres naturales
Bosque de niebla
Huracán Isis, 1998
Aves
Artfrosur
Desastres naturales
Bosque de niebla
Huracán Isis, 1998
Aves
Artfrosur
Tejeda Cruz, César Doctor autor/a 14266
Sutherland, Williams J. autor/a
Cloud forest bird responses to unusually severe storm damage
description In 1998, storms related to Hurricane Isis caused extensive gaps in the cloud forest of El Triunfo Biosphere Reserve in Chiapas, Mexico, where severe storms are infrequent. We examined how this disturbance affected bird species composition. Species richness and composition were similar both between pre- and post-disturbance forest and between newly created gaps and plots that remained forested after the hurricane. However, differences in response guilds were greater between pre- and post-disturbance plots than between forest plots with gaps after disturbance. Granivorous, omnivorous, and terrestrial species were more abundant before the hurricane, whereas insectivorous, midstory, and generalist foragers were more abundant after the hurricane. In addition, species with high sensitivity to disturbance were more abundant in the pre-disturbance forest, while low sensitivity species were more abundant after disturbance.
format Texto
topic_facet Desastres naturales
Bosque de niebla
Huracán Isis, 1998
Aves
Artfrosur
author Tejeda Cruz, César Doctor autor/a 14266
Sutherland, Williams J. autor/a
author_facet Tejeda Cruz, César Doctor autor/a 14266
Sutherland, Williams J. autor/a
author_sort Tejeda Cruz, César Doctor autor/a 14266
title Cloud forest bird responses to unusually severe storm damage
title_short Cloud forest bird responses to unusually severe storm damage
title_full Cloud forest bird responses to unusually severe storm damage
title_fullStr Cloud forest bird responses to unusually severe storm damage
title_full_unstemmed Cloud forest bird responses to unusually severe storm damage
title_sort cloud forest bird responses to unusually severe storm damage
work_keys_str_mv AT tejedacruzcesardoctorautora14266 cloudforestbirdresponsestounusuallyseverestormdamage
AT sutherlandwilliamsjautora cloudforestbirdresponsestounusuallyseverestormdamage
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