Community structure of raptors in the páramo landscape of the Ecuadorian Andes
Fuente:
Redalyc
Enregistré dans:
| Auteur principal: | |
|---|---|
| Format: | Artículo científico |
| Langue: | en |
| Publié: |
Universidad de Costa Rica
2023
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1876459161464602624 |
|---|---|
| author | Santiago Barros |
| author_facet | Santiago Barros |
| contents | Community structure of raptors in the páramo landscape of the Ecuadorian Andes Santiago Barros Paul Porras Boris Landázuri David-C. Siddons Steven C. Latta Pedro-X. Astudillo Biología field methods raptor census protected areas community analysis Macizo del Cajas biosphere reserve Introduction: Habitat alterations result in biodiversity loss, particularly in regions with high levels of diversity and endemism. Raptors are an essential part of the functionality and stability of ecosystems and indicators of habitat quality. In the paramo grassland ecosystems in the high Andes of Northern South America, raptors contain a high concentration of threatened species. Objective: To describe the raptor community structure and determine the species associations. Methods: We made monthly raptor counts in eight transects from October 2021 to September 2022 and used a principal component analysis to determine species associations. Results: We identified 149 individuals (seven species, three families) in two communities: abundant (Carunculated Caracara, Variable Hawk, Andean Condor and Turkey Vulture; PCI = 47 %), and scarce (Cinereous Harrier, Peregrine Falcon and Aplomado Falco; PCII = 27 %). Conclusion: We provide a valid description and understanding of raptor community structure, identifying two communities and the dynamics between them. The first is characterized by an increased abundance of generalist and regionally common species, when the abundance of these species decreases, the second community is defined, characterized by an increase in the abundance of specialist and rare species at the local scale. 2023 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44975700043 https://www.redalyc.org/journal/449/44975700043/ https://www.redalyc.org/journal/449/44975700043/html/ https://www.redalyc.org/journal/449/44975700043/44975700043.epub https://www.redalyc.org/journal/449/44975700043/movil 10.15517/rev.biol.trop..v71i1.51382 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.1 Vol.71 |
| format | Artículo científico |
| id | redalyc_44975700043 |
| institution | Redalyc |
| language | en |
| publishDate | 2023 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Community structure of raptors in the páramo landscape of the Ecuadorian Andes Santiago Barros Biología field methods raptor census protected areas community analysis Macizo del Cajas biosphere reserve Community structure of raptors in the páramo landscape of the Ecuadorian Andes Santiago Barros Paul Porras Boris Landázuri David-C. Siddons Steven C. Latta Pedro-X. Astudillo Biología field methods raptor census protected areas community analysis Macizo del Cajas biosphere reserve Introduction: Habitat alterations result in biodiversity loss, particularly in regions with high levels of diversity and endemism. Raptors are an essential part of the functionality and stability of ecosystems and indicators of habitat quality. In the paramo grassland ecosystems in the high Andes of Northern South America, raptors contain a high concentration of threatened species. Objective: To describe the raptor community structure and determine the species associations. Methods: We made monthly raptor counts in eight transects from October 2021 to September 2022 and used a principal component analysis to determine species associations. Results: We identified 149 individuals (seven species, three families) in two communities: abundant (Carunculated Caracara, Variable Hawk, Andean Condor and Turkey Vulture; PCI = 47 %), and scarce (Cinereous Harrier, Peregrine Falcon and Aplomado Falco; PCII = 27 %). Conclusion: We provide a valid description and understanding of raptor community structure, identifying two communities and the dynamics between them. The first is characterized by an increased abundance of generalist and regionally common species, when the abundance of these species decreases, the second community is defined, characterized by an increase in the abundance of specialist and rare species at the local scale. 2023 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44975700043 https://www.redalyc.org/journal/449/44975700043/ https://www.redalyc.org/journal/449/44975700043/html/ https://www.redalyc.org/journal/449/44975700043/44975700043.epub https://www.redalyc.org/journal/449/44975700043/movil 10.15517/rev.biol.trop..v71i1.51382 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.1 Vol.71 |
| title | Community structure of raptors in the páramo landscape of the Ecuadorian Andes |
| topic | Biología field methods raptor census protected areas community analysis Macizo del Cajas biosphere reserve |
| url | https://www.redalyc.org/articulo.oa?id=44975700043 https://www.redalyc.org/journal/449/44975700043/ https://www.redalyc.org/journal/449/44975700043/html/ https://www.redalyc.org/journal/449/44975700043/44975700043.epub https://www.redalyc.org/journal/449/44975700043/movil |