Arid
DOI10.1016/j.jaridenv.2009.06.017
Habitat selection by two sympatric rodent species in the Monte desert, Argentina. First data for Eligmodontia moreni and Octomys mimax
Traba, J.1; Acebes, P.1; Campos, V. E.2; Giannoni, S. M.3
通讯作者Traba, J.
来源期刊JOURNAL OF ARID ENVIRONMENTS
ISSN0140-1963
出版年2010
卷号74期号:2页码:179-185
英文摘要

Habitat selection in deserts is mainly modulated by the availability of resources. The basic hypotheses regarding coexistence of species in arid environments offer two possibilities: 1) coexisting species partition available resources (each species acting as a specialist) and 2) generalists coexist with specialists because the former use habitats which are underused or not selected by the latter. This study presents the first data on macro- and microhabitat selection by Eligmodontia moreni (Cricetidae) and Octomys mimax (Octodontidae), two rodent species which coexist in the most and part of the Monte desert of Argentina. In order to evaluate both hypotheses, animals were trapped during two seasons (humid and dry) in six macrohabitats of the and Monte (creosote bush scrub, mesquite woodlands, columnar cactus slopes, barrens, chical and saltbush). A multivariate analysis of variance was used to evaluate differences in PCA components of microhabitat (floristic composition and vegetation structure) among capture and control points. The resulting models suggest E moreni to be described as a fine-grained generalist species, which would be segregated from the specialist O. mimax in shared macrohabitats by resource partitioning, basically related to substrate type and vegetation cover. Our findings accord with theories of community assembly involving generalist and specialist species. (C) 2009 Elsevier Ltd. All rights reserved.


英文关键词Eligmodontia moreni Niche breadth Niche overlap Octomys mimax Plant composition Vegetation structure
类型Article
语种英语
国家Spain ; Argentina
收录类别SCI-E
WOS记录号WOS:000273250000003
WOS关键词SMALL MAMMALS ; INTERSPECIFIC COMPETITION ; MICROHABITAT SELECTION ; TYMPANOCTOMYS-BARRERAE ; SPATIAL SCALES ; COEXISTENCE ; ORGANIZATION ; PATTERNS ; BIOME
WOS类目Ecology ; Environmental Sciences
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/2XILL650/164865
作者单位1.Univ Autonoma Madrid, Grp Ecol & Conservac Sistemas Terr TEC, Dept Ecol, E-28049 Madrid, Spain;
2.Consejo Nacl Invest Cient & Tecn, Grp Invest Biodiversidad, IADIZA, CRICYT, Mendoza, Argentina;
3.Univ Nacl San Juan, Museo Ciencias Nat, San Juan, Argentina
推荐引用方式
GB/T 7714
Traba, J.,Acebes, P.,Campos, V. E.,et al. Habitat selection by two sympatric rodent species in the Monte desert, Argentina. First data for Eligmodontia moreni and Octomys mimax[J],2010,74(2):179-185.
APA Traba, J.,Acebes, P.,Campos, V. E.,&Giannoni, S. M..(2010).Habitat selection by two sympatric rodent species in the Monte desert, Argentina. First data for Eligmodontia moreni and Octomys mimax.JOURNAL OF ARID ENVIRONMENTS,74(2),179-185.
MLA Traba, J.,et al."Habitat selection by two sympatric rodent species in the Monte desert, Argentina. First data for Eligmodontia moreni and Octomys mimax".JOURNAL OF ARID ENVIRONMENTS 74.2(2010):179-185.
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