https://www.socictopen.socict.org/index.php/items/show/20789
title: Food habits of two syntopic canids, the maned wolf (Chrysocyon brachyurus) and the crab-eating fox (Cerdocyon thous), in southeastern Brazil Hábitos alimentarios de dos cánidos sintópicos, el aguara guazú (Chrysocyon brachyurus) y el zorro del monte (Cerdocyon thous), en el sudeste de Brasil
subject: Brasil, Brazil, Cerdocyon thous, Chrysocyon brachyurus, diet, dieta, sintopia, yntopy
description: The maned wolf (Chrysocyon brachyurus) and the crab-eating fox (Cerdocyon thous) are two South American canids with large overlap in their geographic distribution. However, there are few data on the comparative ecology of these species. The aim of this research was to quantify the diet of these two canids living in syntopy at three levels: frequency of occurrence, minimum number of individuals preyed and estimated biomass ingested. Additionally, seasonality in the consumption of major groups of food items and aspects of prey size distribution were assessed. The study took place in the Experimental Station of Itapetininga, São Paulo State, Brazil. General results showed that both canids are omnivorous in accordance with other studies. By occurrences, the wolves consumed vegetal and animal food in similar proportions, whereas the foxes consumed more animals, mainly insects. In contrast, both canids ingested mainly animal food if biomass is considered. The maned wolf consumed more wolf's fruit (Solanum lycocarpum) and small mammals in the dry season, and miscellaneous fruits during the wet season. The crab-eating fox also ingested more miscellaneous fruits in the wet season, but the insects were mostly consumed during dry months. The crab-eating fox is more generalist than the maned wolf, but the wolf seems better able to handle distinct prey types. The distribution of prey sizes suggested separate food niches: while the maned wolf consumed a larger spectrum of prey sizes, especially small vertebrates between 10.1 and 100.0 g, the crab-eating fox consumed smaller prey, mainly insects between 0.01 and 0.1 gEl aguara guazú (Chrysocyon brachyurus) y el zorro del monte (Cerdocyon thous) son dos cánidos sudamericanos cuyas distribuciones geográficas se sobreponen extensamente. Sin embargo, hay pocos datos sobre la ecología comparativa de estas especies. El objetivo de esta investigación fue cuantificar la dieta de estos dos cánidos en sintopia en cuanto a tres niveles: frec…
creator: ADRIANA DE ARRUDA BUENO, JOSÉ CARLOS MOTTA-JUNIOR
source: Revista Chilena de Historia Natural
publisher: BMC
date: 2004
relation: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000100002
coverage: Botany, Zoology