Knowledge Resource Center for Ecological Environment in Arid Area
Diversity and composition of bird assemblages in a forest-shrub-savanna gradient of the Semiarid Chaco, Argentina | |
Dario Coria, Ruben1; Rene Coria, Oscar2; Roberto Kunst, Carlos1 | |
通讯作者 | Dario Coria, Ruben |
来源期刊 | ORNITOLOGIA NEOTROPICAL
![]() |
ISSN | 1075-4377 |
出版年 | 2016 |
卷号 | 27页码:1-15 |
英文摘要 | The primitive landscape predominant in the Chaco region of Argentina, Paraguay, Bolivia and Brazil, was a patchwork of forests alternating with grasslands and savannas. Regionally, over-grazing produced the replacement of herbaceous communities of grasslands and savannas for woody communities, leading to widespread shrublands. The aim of this study was to evaluate variation in diversity and composition of birds in a gradient of three types of habitats of Semi-arid Chaco: (i) Quebrachos Forest (Aspidosperma quebracho-blanco, Schinopsis lorentzii); (ii) Low shrubland, which constitutes a degraded version of the; (iii) Aibe Savanna (Elionurus muticus). The results suggest that the diversity of birds was determined by the vertical complexity of the vegetation and the degree of similarity of bird assemblages by the degree of similarity between habitat types. This led to: (i) gradual decreases in diversity of birds from the more complex (Forest) to the less complex habitat (Savanna); (ii) a unique composition of species in the Forest and the Savanna (more dissimilar habitats), where birds of closed habitats prevail in the first and open habitat species in the second and; (iii) Low shrubland, displaying greater similarity to the Forest than to the Savanna, representing a habitat unsuitable for open habitat birds. In forested areas the management should strive to maintain or improve the vegetal structure. In shrublands, grasslands and savannas prescribed fire could be used to favor open habitats birds. |
英文关键词 | Argentina Avian diversity Environmental gradient Forest Savanna Semiarid Chaco Species composition |
类型 | Article |
语种 | 西班牙语 |
国家 | Argentina |
收录类别 | SCI-E |
WOS记录号 | WOS:000385627300001 |
WOS关键词 | DRY CHACO ; LAND-COVER ; TRADE-OFFS ; BIODIVERSITY ; DISTURBANCE ; CONSERVATION ; INTENSITY ; REGION |
WOS类目 | Ornithology |
WOS研究方向 | Zoology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/195273 |
作者单位 | 1.Estn Expt Agr Santiago del Estero, Inst Nacl Tecnol Agr, Jujuy 850, RA-4200 Santiago Del Estero, Argentina; 2.Univ Nacl Santiago del Estero UNSE, Fac Ciencias Forestales, Av Belgrano S 1912, RA-4200 Santiago Del Estero, Argentina |
推荐引用方式 GB/T 7714 | Dario Coria, Ruben,Rene Coria, Oscar,Roberto Kunst, Carlos. Diversity and composition of bird assemblages in a forest-shrub-savanna gradient of the Semiarid Chaco, Argentina[J],2016,27:1-15. |
APA | Dario Coria, Ruben,Rene Coria, Oscar,&Roberto Kunst, Carlos.(2016).Diversity and composition of bird assemblages in a forest-shrub-savanna gradient of the Semiarid Chaco, Argentina.ORNITOLOGIA NEOTROPICAL,27,1-15. |
MLA | Dario Coria, Ruben,et al."Diversity and composition of bird assemblages in a forest-shrub-savanna gradient of the Semiarid Chaco, Argentina".ORNITOLOGIA NEOTROPICAL 27(2016):1-15. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。