1997
DOI: 10.1515/mamm.1997.61.2.167
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Habitat selection and interspecific competition in rodents in pampean agroecosystems

Abstract: We analyzed the effect of density-dependent habitat selection and interspecific competition on the use of space by small rodent species in agroecosystems. We studied rodent abundance in cropfields and their borders, weedy margins less disturbed by agricultural activities. We could distinguish two kind of species : those habitat intolerants, Akodon azarae and Oil· goryzomys flavescens, which select the borders, and those habitat tolerants, Calomys laucha and Calomys musculinus. The two most abundant species in … Show more

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Cited by 34 publications
(31 citation statements)
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“…This phenomenon has been observed in other sigmodontine species in the pampean region (Hodara et al 2000, Kravetz and de VillafaZe 1981, Mills et al 1992, Zuleta et al 1988). Busch et al (1997) and Cittadino et al (1994Cittadino et al ( , 1998 argue that there is more evidence that annual declination is caused by an interaction of climatic factors and habitat quality. Climatic factors may act directly or through their effects on the habitat quality, with intra-and inter--specific density effects, influence survival, dispersion and habitat selection.…”
Section: Discussionmentioning
confidence: 99%
“…This phenomenon has been observed in other sigmodontine species in the pampean region (Hodara et al 2000, Kravetz and de VillafaZe 1981, Mills et al 1992, Zuleta et al 1988). Busch et al (1997) and Cittadino et al (1994Cittadino et al ( , 1998 argue that there is more evidence that annual declination is caused by an interaction of climatic factors and habitat quality. Climatic factors may act directly or through their effects on the habitat quality, with intra-and inter--specific density effects, influence survival, dispersion and habitat selection.…”
Section: Discussionmentioning
confidence: 99%
“…The most frequent crops include wheat, maize, soybean and sunflower. Seasonal changes in plant phenology and in the stage of development of crops cause seasonal qualitative and quantitative variations in resources-both in cropfields and borders (Busch et al 1997;Hodara and Busch 2006). Resources for rodents are both less abundant and less available in the winter than in the other seasons, with variations largely due to changes in plant cover, plant species composition and availability of invertebrate prey .…”
Section: Study Areamentioning
confidence: 99%
“…The rodent community in the Pampean region has been widely described (Busch & Kravetz, 1992a, 1992bBusch, Alvarez, Cittadino, & Kravetz, 1997;Dadon, & Hodara, 2000;Busch et al, 2001;Hodara, Busch, Kittlen, & Kravetz, 2001;Hodara & Busch, 2006;Busch & Hodara, 2010;Fraschina, León, & Busch, 2012;León, Fraschina, Guidobono, & Busch, 2013), but mainly in crop fields, their borders, and poultry farms. Other habitats that support species with more specific requirements, such as railway embankments, woodlots and riparian habitats, have been poorly sampled.…”
Section: Introductionmentioning
confidence: 99%