Preferred food species in the Sapotaceae and Palmae to describe the scale at which agoutis respond Movements of agoutis with respect to patches of Meters (Nunes 1998 Fragoso 1999 Silvius 1999,Ģ002 Fragoso et al. This site is characterized by an aggregated distribution of tree species at the scale of hundreds of (Dasyprocta leporina) and describe their foragingīehavior and home range at an undisturbed forest Here we report on the capture and radio-tracking of five red-rumped agoutis Studies have been limited by difficulties inĬapturing agoutis (Smythe 1978, Jorge 2000 l? Range use, or their seed-handling behavior in the With respect to fruiting trees, their pattern of home However, little is known about agouti movement Source (fruiting tree, latrine, or artificial seed pile).ĭue to a paucity of radio-tracking studies, In both cases, the ecological effect ofĪgoutis appcars to be due to their tendency to forage and scatterhoard seeds very close to the seed Sence of long-distance seed dispersers (Peres & Bai-ĭer 1997). Short distances from a parent plant in the abacuse, New York 13210, U.S.A. Tapirs ( Zpirus terrestris Fragoso 1997, Fragoso etĬurrent Address: Faculty of Environmental and ForestĪ l in press) or by (b) primarily dispersing seedsīiology, SUNY-ESF, 6 Illick Hall, 1 Forestry Drive, Syrvery in press)īy (a) secondarily spreading out seeds initially disReceived revision accepted 9 January persed by long-distance clump dispersers such as In several tropical forests (Lieberman & Liebermanġ994, Wills & Condit 1999, Fragoso e t a l. Trees documented at scales of a few hundred meters In particular, agoutis may contribute to the aggregated distribution of 2001) and therefore theirĭispersion pattern in the forest. (Forget & Milleron 1991, Fragoso 1997, Peres &īaider 1997, Feer et al. May be important in determining the spatial recruitment pattern of some large-seeded tree species Primary or secondary seed dispersal by agoutis 1997), although in the past they may haveīeen dispersed by now extinct megafauna (Janzen A few tree species presently appear toĭepend almost exclusively on agoutis for seed dispersal (Hallwachs 1986, Peres & Baider 1997, Pe. The range of forest types they inhabit (Hallwachsġ986, Smythe 1989, Forget 1990, Forget & Milleron 1991, Emmons & Feer 1997, Peres & Baiderġ997, Peres et al. 1994) and are considered important dispersers for large-seeded trees in They can reach high population densities (1-63Īnimals/km2 Wright et al. Ubiquitous in Neotropical dry and moist forests. Estes resultados sugerem que o papel das cutiasĬomo dispersores de sementes de curta disthcia podem contribuir para a dispersio agregada de Arvores tropicais cornīrazil Dasyprocta leporina fiuiting phenology home range Maracd Island Ecological Reserve Palmae arividades de armazenamento nas regibes prbximas as arvores frutiferas. As cutias preferiramįorragear nas Areas onde as espkcies de sementes preferidas eram mais abundantes, e concentraram a alimentago e As Areas mais usadas e as bordas da area de vida variaram de acordo corn as estagbes de maior e menorĭisponibilidade de frutos porque diferentes arvores foram procuradas em diferenres estagbes. 0 tamanho da Area de vida variou enrre 3 eĨ.5 ha. Tres espCciesĭe plantas foram responsiveis por 63 porcento das observagbes de dieta. 0 s principais itens da dietaįoram sementes e polpa de frutos, mas as cutias tambCm consumiram cotiledones, folhas e inverrebrados. N6s seguimos cinco cutias-vermhelhas (Daryprocta leporina) marcados corn tele-transmissores por dois 6 nove mCsesĬada um na Estago Ecol6gica Ilha de Maraca, localizada no norte da AmazBnia Brasileira. May contribute to the aggregated dispersion pattern of large-seeded tropical forest trees. These results suggest that agoutis, as extremely short-distance seed dispersers, Preferentially within conspecific parches of preferred fruit species and concentrated their feeding and scatterhoardingĪctivities near individual fruiting trees. To the season of low fruit availability as different individual trees became the focus of feeding activities. High-use areas and home range boundaries shifted from the season of high fruit availability Three plant species made up 63 percent of the feeding observations. Agoutis fed primarily on seeds and pulp but also are cotyledons, Ilha de Maraca in the northern Brazilian Amazon. We radio-tracked five red-rumped agoutis (Dasyprocta leporina) for two to nine months each at the Estaqio Ecol6gica
V Fragoso2ĭepartment of Zoology, University of Florida, Gainesville, Florida 3261 1, U.S.A Red-rumped Agouti (Dasyprocta leporina) Home Range Use in anĪmazonian Forest: Implications for the Aggregated Distribution of
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