Arid
DOI10.1111/j.1442-9993.2012.02438.x
Hoarding patterns of sigmodontine rodent species in the Central Monte Desert (Argentina)
Giannoni, Stella M.1,2; Campos, Valeria E.1,2; Andino, Natalia1,2; Ramos-Castilla, Maria3; Orofino, Alejandro3; Borghi, Carlos E.1,2; De Los Rios, Claudia1; Campos, Claudia M.1,4
通讯作者Giannoni, Stella M.
来源期刊AUSTRAL ECOLOGY
ISSN1442-9985
EISSN1442-9993
出版年2013
卷号38期号:5页码:485-492
英文摘要

Hoarding food is an important strategy of rodents in desert environments characterized by unpredictable and poor food resource availability. In the Monte Desert, Prosopis produces abundant food, unevenly in time and space, in the form of pods and seeds. Sigmodontine rodents (Graomys griseoflavus, Akodon molinae, Eligmodontia typus and Calomys musculinus) use Prosopis propagules extensively, and they could be predators or dispersers depending on how they handle and where they leave the propagules. The objectives of this study were: (1) to know what rodent species transported propagules; (2) to evaluate what hoarding pattern was used by species that transport propagules (larder and scatterhoarding); and (3) to analyse in which condition were propagules left by the rodent species, both at the food source and in caches. Our results showed that all four species transported propagules, with G.griseoflavus and E.typus being the species that carried more seeds. Our study supported the evidence that food caching is common among species and that many species both larderhoard and scatterhoard food. Graomys griseoflavus and A.molinae, the largest species, larderhoarded more than did the smaller E.typus. These results uphold the hypothesis that larger species will show greater propensity to larderhoard than smaller species. Considering the interaction between seed-hoarding patterns and plants, E.typus was the species that could most improve germination because it scatterhoarded propagules and left seeds out of pods. In contrast, G.griseoflavus could have a negative impact on plant populations because this was the species that predated more seeds and larderhoarded a high percentage of them. The smallest C.musculinus was the species that transported propagules least, and left them as seeds inside pods or pod segments mainly at the food source, which makes seeds more vulnerable to predation.


英文关键词disperser larderhoarding predator Prosopis flexuosa scatterhoarding
类型Article
语种英语
国家Argentina
收录类别SCI-E
WOS记录号WOS:000321628500005
WOS关键词MERRIAMS KANGAROO RATS ; ORYZOPSIS-HYMENOIDES ; HETEROMYID RODENTS ; PROSOPIS-FLEXUOSA ; HABITAT STRUCTURE ; SEED DISPERSAL ; SMALL MAMMALS ; GERMINATION ; SURVIVAL ; COMMUNITIES
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/2XILL650/176061
作者单位1.Univ Nacl San Juan, IMCN, Interacc Biol Desierto INTERBIODES, Dept Biol, RA-5400 Rivadavia, San Juan, Argentina;
2.Consejo Nacl Invest Cient & Tecn, Mendoza, Argentina;
3.Univ Aconcagua, Inst San Pedro Nolasco, Mendoza, Argentina;
4.Consejo Nacl Invest Cient & Tecn, Inst Argentino Zonas Aridas IADIZA, GIB, Mendoza, Argentina
推荐引用方式
GB/T 7714
Giannoni, Stella M.,Campos, Valeria E.,Andino, Natalia,et al. Hoarding patterns of sigmodontine rodent species in the Central Monte Desert (Argentina)[J],2013,38(5):485-492.
APA Giannoni, Stella M..,Campos, Valeria E..,Andino, Natalia.,Ramos-Castilla, Maria.,Orofino, Alejandro.,...&Campos, Claudia M..(2013).Hoarding patterns of sigmodontine rodent species in the Central Monte Desert (Argentina).AUSTRAL ECOLOGY,38(5),485-492.
MLA Giannoni, Stella M.,et al."Hoarding patterns of sigmodontine rodent species in the Central Monte Desert (Argentina)".AUSTRAL ECOLOGY 38.5(2013):485-492.
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