Artibeus lituratus (Olfers, 1818) Artibeus lituratus (Olfers, 1818) and Platyrrhinus lineatus (Geoffroy, 1810) are phyllostomid bats that often coexist in the same local and consume the same feed. Therefore, the aim of this study was to obtain data about feeding habits of the two species, relating to their capture times, in the land where is the Universidade Estadual de Londrina, northern Paraná. The samples were attained among September 2010 and May 2011, with 12 960 m2 h of sampling effort. The results analysis contemplated the Shannon Index, Pielou Index and Schoener Index. 250 A. lituratus e 46 P. lineatus were captured, and while the first one consumed fruits from ten vegetable species, the second fed just three species, both preferring the Cecropia spp. and Ficus spp. genus. A. lituratus showed the higher capture peak 30 minutes after the sunset and was collected throughout the period. P. lineatus had its higher peak 01h 45min after nightfall and was captured in short periods. With these outcomes, is possible to imply that P. lineatus has a foraging peak, in the study place, 75 minutes after A. lituratus, avoiding straight competition. A. lituratus showed larger food diversity, indicating higher adaptative potential for this specie than for the other.
The objective of this study was to evaluate the relationship between availability and consumption of food for two species of Neotropical fruit bats Carollia perspicillata and Sturnira lilium. The study was conducted in the Parque Estadual Mata dos Godoy, an Atlantic forest fragment with 680 ha in size. Monthly bat surveys were conducted at four sampling points (four nights with four mist nets per night during 6 h after sunset). The available fruit biomass of nine Piper species and seven Solanum species was measured, as well as the biomass consumed by C. perspicillata and S. lilium. We found a significant positive correlation between fruit biomass consumption and availability for both bat species. The proportion of available/eaten biomass only showed a significant difference for S. lilium, with a higher value in Solanum. The amount of biomass eaten was different only for P. umbellatum and P. glabratum between bat species. Carollia perspicillata mainly consumed fruits of two Piper species, whereas S. lilium consumed fruits of two different Piper species as well as a greater variety of Solanum fruits.
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