Local drivers of the structure of a tropical bird ‑ seed dispersal network
One of the major challenges in ecology is to understand the relative importance of neutral- and niche-based processes structuring species interactions within communities. The concept of neutral-based processes posits that network structure is a result of interactions between species based on their a...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2019machadodesouza.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 245 | 1 | 0 | |a Local drivers of the structure of a tropical bird ‑ seed dispersal network |
| 520 | |a One of the major challenges in ecology is to understand the relative importance of neutral- and niche-based processes structuring species interactions within communities. The concept of neutral-based processes posits that network structure is a result of interactions between species based on their abundance. On the other hand, niche-based processes presume that network structure is shaped by constraints to interactions. Here, we evaluated the relative importance of neutral-based process, represented by species’ abundance (A) and fruit production (F) models, and niche-based process, represented by spatial overlap (S), temporal overlap (T) and morphological barrier (M) models, in shaping the structure of a bird-seed dispersal network from the Brazilian Atlantic Forest. We evaluated the ability of each model, singly or in combination, to predict the general structure [represented by connectance, nestedness (NODF), weight nestedness (WNODF), interaction evenness and complementary specialization] and microstructure of the network (i.e., the frequency of pairwise interactions). Only nestedness (both NODF and WNODF) was predicted by at least one model. NODF and WNODF were predicted by a neutral-based process (A), by a combination of niche-based processes (ST and STM) and by both neutral- and niche-based processes (AM). NODF was also predicted by F and FM model. Regarding microstructure, temporal overlap (T) was the most parsimonious model able to predict it. Our findings reveal that a combination of neutral- and niche-based processes is a good predictor of the general structure (NODF and WNODF) of the bird-seed dispersal network and a niche-based process is the best predictor of the network’s microstructure. | ||
| 650 | |2 Agrovoc |9 26 | ||
| 653 | |a ATLANTIC FOREST | ||
| 653 | |a FORBIDDEN LINKS | ||
| 653 | |a FRUGIVORY | ||
| 653 | |a MUTUALISTIC NETWORK | ||
| 653 | |a NEUTRALITY | ||
| 700 | 1 | |a Machado de Souza, Tiago |u Universidade Federal do Paraná. Departamento de Botânica. Laboratório de Interações e Biologia Reprodutiva. Centro Politécnico, Jardim das Américas. Curitiba, Brazil. |u Universidade Federal do Paraná. Programa de Pós‑Graduação em Ecologia e Conservação. Centro Politécnico, Jardim das Américas. Curitiba, Brazil. |u Mater Natura-Instituto de Estudos Ambientais. Curitiba, Brazil. |u Instituto de Estudos Ambientais do Paraná (IEAP). Curitiba, Brazil. |9 69202 | |
| 700 | 1 | |a Pamplona Campos, Ricardo |u Universidade Federal do Paraná. Departamento de Botânica. Laboratório de Interações e Biologia Reprodutiva. Centro Politécnico, Jardim das Américas. Curitiba, Brazil. |9 69203 | |
| 700 | 1 | |9 11883 |a Devoto, Mariano |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente.Cátedra de Botánica General. Buenos Aires, Argentina. |u CONICET - Universidad de Buenos Aires. Buenos Aires, Argentina. | |
| 700 | 1 | |a Galarda Varassin, Isabela |u Universidade Federal do Paraná. Departamento de Botânica. Laboratório de Interações e Biologia Reprodutiva. Centro Politécnico, Jardim das Américas. Curitiba, Brazil. |u Universidade Federal do Paraná. Programa de Pós‑Graduação em Ecologia e Conservação. Centro Politécnico, Jardim das Américas. Curitiba, Brazil. |9 69204 | |
| 773 | 0 | |t Oecologia |w (AR-BaUFA)SECS000133 |g vol.189, no.2 (2019), p.421-433, grafs. | |
| 856 | |f 2019machadodesouza |i En reservorio |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2019machadodesouza.pdf |x ARTI201908 | ||
| 856 | |u http://www.springer.com/ |z LINK AL EDITOR | ||
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