Arid
DOI10.1016/j.actao.2015.05.002
Amphibian assemblages in dry forests: Multi-scale variables explain variations in species richness
Lescano, Julian N.1,2; Bellis, Laura M.1; Hoyos, Laura E.3; Leynaud, Gerardo C.1,2
通讯作者Lescano, Julian N.
来源期刊ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY
ISSN1146-609X
EISSN1873-6238
出版年2015
卷号65-66页码:41-50
英文摘要

Pond-breeding amphibians depend on several habitats and scales throughout their complex life cycle. For pond-breeding amphibians inhabiting seasonal dry forests, landscape is composed of a set of scarce and ephemeral isolated ponds surrounded by a contrasting matrix. The Chaco ecoregion is one of the most extensive dry seasonal forests in South America. In the last four decades, agricultural expansion and transformation from subsistence livestock farming to commercial livestock production have triggered dramatic deforestation processes all across the region, changing landscape composition and configuration. We postulate that richness of pond-breeding amphibians in the Chaco dry forest is negatively associated with pond hydroperiod and isolation, and terrestrial matrix degradation. Pond attributes and landscape configuration and composition were used to fit a statistical model to predict amphibian species abundance and richness in Arid Chaco ponds. Our results show that amphibian abundance and species richness in Chaco ponds is related to local and landscape predictors. Isolated and ephemeral ponds located in degraded shrublands showed low species richness values in Chaco dry forests. These results suggest that present-day land-use changes in the Chaco will have important effects on amphibians assemblages from the region, because such changes imply not only the loss of native vegetation but also a reduction of rural people devoted to extensive livestock production, where the artificial ponds used for watering livestock are also used as breeding sites by Chaco amphibians. (C) 2015 Elsevier Masson SAS. All rights reserved.


英文关键词Amphibians Chaco Landscape Ponds Dry forest
类型Article
语种英语
国家Argentina
收录类别SCI-E
WOS记录号WOS:000356557600006
WOS关键词LANDSCAPE RESISTANCE ; CENTRAL ARGENTINA ; HABITAT LOSS ; FROG ; CHACO ; DYNAMICS ; PATTERNS ; METAPOPULATION ; FRAGMENTATION ; DEFORESTATION
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/185421
作者单位1.Inst Diversidad & Ecol Anim CONICET UNC, RA-5000 Cordoba, Argentina;
2.Univ Nacl Cordoba, Fac Ciencias Exactas Fis & Nat, Ctr Zool Aplicada, RA-5000 Cordoba, Argentina;
3.Inst Multidisciplinario Biol Vegetal CONICET UNC, RA-5000 Cordoba, Argentina
推荐引用方式
GB/T 7714
Lescano, Julian N.,Bellis, Laura M.,Hoyos, Laura E.,et al. Amphibian assemblages in dry forests: Multi-scale variables explain variations in species richness[J],2015,65-66:41-50.
APA Lescano, Julian N.,Bellis, Laura M.,Hoyos, Laura E.,&Leynaud, Gerardo C..(2015).Amphibian assemblages in dry forests: Multi-scale variables explain variations in species richness.ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY,65-66,41-50.
MLA Lescano, Julian N.,et al."Amphibian assemblages in dry forests: Multi-scale variables explain variations in species richness".ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY 65-66(2015):41-50.
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