KOWALEWSKI Miguel Martin
capítulos de libros
Evidence of alternative dietary syndromes and nutritional goals in the genus Alouatta
GARBER, PAUL A; RIGHINI, NICOLETTA; KOWALEWSKI, M MARTIN
Howler Monkeys: Examining the Biology, Adaptive Radiation, and
Año: 2012; p. 1 - 44
Howler monkeys exploit difficult-to-digest and potentially toxic food items such as mature leaves and unripe fruits; persist across an extreme range of habitat types, including highly disturbed forests; and have the most widespread geographical distribution of any genus of New World primate. Given evidence of dietary variability in the amount of monthly fruit, leaf, and flower consumption, howler monkeys provide an instructive model for examining relationships among foraging strategies, activity budgets, and patterns of habitat utilization. In this chapter we examined evidence for interspecific differences in dietary patterns and nutritional ecology within the genus Alouatta, and identified three dietary syndromes that are generally consistent with howler monkey phylogeny and biogeography. Specifically, we show that Mesoamerican howler monkeys and A. seniculus are characterized by a balanced leaf and fruit diet, Amazonian species by a fruit enriched diet, and Atlantic Forest and southern howler monkeys by a leaf-enriched diet. Finally, to be able to identify species-specific dietary strategies and syndromes across the primate Order, we recommend an approach that includes collecting data on feeding rates and the nutritional composition of the diet.