TY - JOUR
T1 - Foraging behavioural traits of tropical insectivorous birds lead to dissimilar communities in contrasting forest habitats
AU - Castaño-Villa, Gabriel J.
AU - Santisteban-Arenas, Rafael
AU - Hoyos-Jaramillo, Alejandro
AU - Estévez-Varón, Jaime V.
AU - Fontúrbel, Francisco E.
N1 - Funding Information:
Acknowledgements – The authors are grateful to the Vicerrectoría de Investigaciones y Posgrados at the Universidad de Caldas, and to the Fundación HTM for funding the project entitled ‘Efectos de las plantaciones forestales en la conservación de la diversidad de la avifauna y flora, en los bosques de la CHEC (Caldas)’. We are grateful for the logistic support provided by the Central Hidroeléctrica de Caldas S.A E.S.P. and C. A. Franco for arranging the logistics at the study site. L. Salazar, A. D. Pineda, J. A. Morales and F. A. Ramos assisted in field. Comments of A. Viña and C. González improved an earlier version of the manuscript. Funding – Universidad de Caldas Grant no. 00414 to GJCV, FONDECYT project 11160152 to FEF. Permits – The Corporación Autónoma Regional de Caldas (CORPOCALDAS) granted the research permits. This research met the Research ethics and Animal ethics guidelines of Universidad de Caldas.
Funding Information:
– Universidad de Caldas Grant no. 00414 to GJCV, FONDECYT project 11160152 to FEF. Permits – The Corporación Autónoma Regional de Caldas (CORPOCALDAS) granted the research permits. This research met the Research ethics and Animal ethics guidelines of Universidad de Caldas.
Publisher Copyright:
© 2019 The Authors.
PY - 2019
Y1 - 2019
N2 - Many deforested areas worldwide have been planted with Alnus spp. to protect watersheds and soils. However, the effects of these plantations on biodiversity are little known yet. Contrasting forest types may impose strong environmental filters to some behavioural traits, leading to dissimilar communities. Insectivorous birds are known to be sensitive to changes in habitat structure due to their specialized foraging behaviour. We contrasted species richness, abundance and composition of insectivorous birds, according to functional behaviour groups (foraging strategy and stratum), between secondary forest stands and Andean alder Alnus acuminata plantations, to assess how contrasting forest types affect this bird group in the Colombian Andes. Insectivorous bird species richness and abundance were higher at the Alder plantation rather than at the secondary forest, resulting in dissimilar communities. In this regard, forest plantations act as a positive filter for foliage gleaners and flycatchers, whereas secondary forests act as a positive filter for bark foragers. Secondary forests and alder plantations impose different ecological scenarios to insectivorous birds, related to foraging strategies and foraging stratum, which ultimately leads to a dissimilar species composition.
AB - Many deforested areas worldwide have been planted with Alnus spp. to protect watersheds and soils. However, the effects of these plantations on biodiversity are little known yet. Contrasting forest types may impose strong environmental filters to some behavioural traits, leading to dissimilar communities. Insectivorous birds are known to be sensitive to changes in habitat structure due to their specialized foraging behaviour. We contrasted species richness, abundance and composition of insectivorous birds, according to functional behaviour groups (foraging strategy and stratum), between secondary forest stands and Andean alder Alnus acuminata plantations, to assess how contrasting forest types affect this bird group in the Colombian Andes. Insectivorous bird species richness and abundance were higher at the Alder plantation rather than at the secondary forest, resulting in dissimilar communities. In this regard, forest plantations act as a positive filter for foliage gleaners and flycatchers, whereas secondary forests act as a positive filter for bark foragers. Secondary forests and alder plantations impose different ecological scenarios to insectivorous birds, related to foraging strategies and foraging stratum, which ultimately leads to a dissimilar species composition.
KW - Alnus acuminate
KW - Colombian Andes
KW - community similarity
KW - foraging strategy
KW - foraging stratum
KW - understory height
UR - http://www.scopus.com/inward/record.url?scp=85091224984&partnerID=8YFLogxK
U2 - 10.2981/wlb.00483
DO - 10.2981/wlb.00483
M3 - Article
AN - SCOPUS:85091224984
VL - 2019
JO - Wildlife Biology
JF - Wildlife Biology
SN - 0909-6396
IS - 1
M1 - wlb.00483
ER -