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The relative importance of local versus regional habitat structure variation on the abundance of two generalist mutualists along a forest disturbance gradient
Indexado
WoS WOS:001306998900001
Scopus SCOPUS_ID:85202656242
DOI 10.1016/J.GECCO.2024.E03160
Año 2024
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Mutualistic interactions are key to biodiversity generation and maintenance, being pollination and seed dispersal interactions essential for plant reproduction. However, anthropogenic habitat disturbance can alter these interactions. We studied the regional and local effects of habitat disturbance on two generalist mutualist animals of southern Chile temperate rainforests: the hummingbird Sephanoides sephaniodes and the marsupial Dromiciops gliroides, , which perform key roles as pollinator and seed disperser, respectively. We sampled 12 sites corresponding to four disturbance conditions (mature native forest, secondary forest, native forest under selective logging, and exotic forest plantations) in which we estimated the number of S. sephaniodes and D. gliroides records (as a proxy of relative abundance) using camera traps. We measured seven habitat structure variables at each site, known to influence their occurrence. Specifically, we examined S. sephaniodes and D. gliroides abundance variation at (i) a regional scale (among disturbance conditions) and (ii) at a local scale (among sampling sites). Dromiciops gliroides abundance decreased as disturbance increased, but S. sephaniodes abundance was highly variable. At the local scale, S. sephaniodes and D. gliroides abundances were largely variable among sites, influenced by habitat structural features, such as bamboo and shrub cover and woody debris. Our results show that although habitat disturbance may influence mutualist abundances, they can tolerate disturbance if minimum structure and resource requirements are met, but respond idiosyncratically to local conditions. Examining local-scale variability may provide valuable information on ecological processes, which often goes unnoticed when local sites are considered as replicates in landscape-level studies.

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Disciplinas de Investigación



WOS
Biodiversity Conservation
Ecology
Scopus
Sin Disciplinas
SciELO
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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Ponce, Macarena - Pontificia Universidad Católica de Valparaíso - Chile
2 Gomez, Flor - Pontificia Universidad Católica de Valparaíso - Chile
3 Ojeda, Susan - Pontificia Universidad Católica de Valparaíso - Chile
4 Rodriguez-Gomez, Gloria B. Mujer Universidad de Chile - Chile
Universidad de Santiago de Chile - Chile
5 Orellana, Jose I. - Pontificia Universidad Católica de Valparaíso - Chile
Millennium Nucleus Patagonian Limit Life LiLi - Chile
Límite de la Vida Patagónica: Restricciones Ambientales en Genética y Ecofisiología - Chile
6 FONTURBEL-RADA, FRANCISCO ENRIQUE Hombre Pontificia Universidad Católica de Valparaíso - Chile
Millennium Nucleus Patagonian Limit Life LiLi - Chile
Límite de la Vida Patagónica: Restricciones Ambientales en Genética y Ecofisiología - Chile

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Financiamiento



Fuente
Agencia Nacional de Investigación y Desarrollo
ANID-Fondecyt

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Agradecimientos



Agradecimiento
This work was supported by ANID-FONDECYT projects 11160152 and 1210166 (awarded to FEF).
We are grateful to V. Riffo, V. G\u00F3mez, and J. Cuadra for their assistance in the field. We also are grateful to S. Cordero and four anonymous reviewers for their comments and suggestions. We are indebted to the Chilean Forestry Corporation (CONAF), the Huilo Huilo Foundation, The Nature Conservancy, Oncol Park, Katalapi Park, Peumay\u00E9n Park, Bernardo Eggers, David Carrasco, and Ra\u00FAl Las Casas for granting us access to the sampling sites and support our research. JIO and FEF acknowledge the support of ANID\u2013Millennium Science Initiative Program\u2013NCN2021_050.
We are grateful to V. Riffo, V. G\u00F3mez, and J. Cuadra for their assistance in the field. We also are grateful to S. Cordero and four anonymous reviewers for their comments and suggestions. We are indebted to the Chilean Forestry Corporation (CONAF), the Huilo Huilo Foundation, The Nature Conservancy, Oncol Park, Katalapi Park, Peumay\u00E9n Park, Bernardo Eggers, David Carrasco, and Ra\u00FAl Las Casas for granting us access to the sampling sites and support our research. JIO and FEF acknowledge the support of ANID\u2013Millennium Science Initiative Program\u2013NCN2021_050.

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