Composición, abundancia y riqueza de especies de la comunidad de murciélagos en bosques de galería en la Serranía de la Macarena (Meta - Colombia)

In the northern part of the Serrania de La Macarena (Colombia) were collected 919 bats of 39 species from the gallery foresf. This number plus previous reports give a total of 44 species, equivalent to 25% of total number of species reported for the country and 15.25% for the neotropical region. This is the highest number of bat species given for any tropical ecosystem up to now. One of the 39 species found (Carollia perspicillata) represent the bulk of the relative abundance in all the samples with relative abundances between 44.4% and 69.4%; one species is common (Artibeus planirostris) with relative abundaces higher than 5%; five species are common in sorne samples but not in all of them (Artibeus fuliginosus, Carollia castanea, Desmodus rotundus, Uroderma bilobatum and Uroderma magnirostrum) and they are a great number(32) ofrare species, with very low relative abundance values. In the pattern of temporal assemblage in the community are changes in the species present and its numbers.