Diet, seasonal abundance and microhabitats of Praomys (Mastomys) natalensis (Rodentia: Muridae) and other small rodents in a Kenyan sub‐humid grassland community
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- 1 September 1995
- journal article
- Published by Wiley in African Journal of Ecology
- Vol. 33 (3) , 211-223
Abstract
Summary: The diet, seasonal abundance and microhabitats of Praomys natalensis, Tatera robusta, Mus minutoides and M. triton, live‐trapped on a five ha grid over an eight‐month period, were studied in a dry sub‐humid grassland in Kahawa, Kenya.All the species were found to be omnivorous, feeding mainly on seeds and arthropods, with herbage forming a small but regular part of their diet. The diet of Praomys, though similar to that of M. minutoides, was significantly (PTatera and M. triton.Rodent populations were low with trapping success for all the species ranging from 0·4 to 4·7% with Praomys being 73% of total captures.Habitat association among the rodents was evident given that Praomys was strongly (PPanicum maximum, and Tatera with Hyparrhenia spp. and Themeda triandra, respectively (PPraomys and Tatera were not only negatively associated (PPraomys abundance in this habitat.Résumé: On a étudié le régime alimentaire, l'abondance saisonnière et le micro‐habitat de Praomys natalensis, Tatera robusta, Mus minutoides et M. triton, attrapés vivants sur un terrain de 5 ha, pendant une période de huit mois, dans une savane semihumide asséchée de Kahawa, au Kenya. On a trouvé que toutes les espèces étaient omnivores, se nourrissant principalement de graines et d'arthropodes, et l'herbe consituant une part restreinte mais régulière de leur régime alimentaire. Le régime alimentaire de Praomys, assez semblable à celui de M. minutoides, était significativement différent (pTatera et de M. triton. Les populations de rongeurs éttaient réduites, avec un taux de piégeage variant selon les espèces de 0,4 à 4,7%, Praomys constituant 73% du total des captures. L'association des rongeurs avec un habitat particulier était évidente, à savoir que Praomysétait fortement (pPanicum maximum, et Tatera avec Hyparrhenia spp. et Themeda triandra respectivement (pPraomys et Tatera n'étaient pas seulement négativement associés (pPraomys dans cet habitat.Keywords
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