Services on Demand
Iheringia. Série Zoologia
Print version ISSN 0073-4721
On-line version ISSN 1678-4766
ALMEIDA-GOMES, Mauricio; HATANO, Fábio H.; VAN SLUYS, Monique and ROCHA, Carlos F. D.. Diet and microhabitat use by two Hylodinae species (Anura, Cycloramphidae) living in sympatry and syntopy in a Brazilian Atlantic Rainforest area. Iheringia, Sér. Zool. [online]. 2007, vol.97, n.1, pp.27-30. ISSN 0073-4721. http://dx.doi.org/10.1590/S0073-47212007000100005.
We analyzed the diet and microhabitat use for two Hylodinae anurans (Cycloramphidae), Hylodes phyllodes Heyer & Cocroft, 1986 and Crossodactylus gaudichaudii Duméril & Bibron, 1841, living in sympatry at an Atlantic Rainforest area of Ilha Grande, in southeastern Brazil. The two species live syntopically at some rocky streams. The two species differed strongly in microhabitat use. Hylodes phyllodes occurred mainly on rocks, whereas C. gaudichaudii was observed mostly on the water. Regarding diet, coleopterans, hymenopterans (ants), and larvae were the most important prey item consumed by both species. Data suggest that microhabitat use appears to be an important parameter differentiating these frogs with respect to general resource utilization.
Keywords : Anuran; sympatry; syntopy; Atlantic Rainforest; Ilha Grande.