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2005 | 50 | 3 |
Tytuł artykułu

A comparison between vegetation and diet records from the wet and dry season in the cottontail rabbit Sylvilagus floridanus at Ixtacuixtla, Central Mexico

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Mexico has eight endemic lagomorph species, several of which are endangered. For conservation reasons it is necessary to know more about their diet. In a first step we applied the method of fecal pellet analysis to the cottontailSylvilagus floridanus (Allen, 1890). Since it is common in Mexico, information on its diet should provide a useful baseline with which to compare the diets of other Mexican lagomorphs. At Ixtacuixtla, we recorded vegetation and analyzed fecal pellet content once in August (wet season) and once in March (dry season) at 4 sampling sites representing different habitat types. The comparison of vegetation and diet records suggestedS. floridanus to occupy the same dietary niche in the different habitats. Measures of niche breadth showedS. floridanus to be neither a generalist nor a specialist. Nevertheless, it appeared to be quite selective in consuming particular herb and grass species even when they became scarce during the dry season. Since the vegetation record only poorly represented the rabbits’ diet, a more focused approach is suggested for future studies: first, to identify the relevant food species in the diet, second, to obtain data on the availability of these, and third, to concentrate on time points when changes in resource state could be a limiting factor.
Wydawca
-
Czasopismo
Rocznik
Tom
50
Numer
3
Opis fizyczny
p.377-389,ref.
Twórcy
autor
  • Universidad Nacional Autonoma de Mexico, Mexico, AP 70228, CP 04510, D.F., Mexico
autor
autor
autor
Bibliografia
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Typ dokumentu
Bibliografia
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