BIOL 4141 Chapter : Chiroptera Mammology 2014
Document Summary
Bulle. n of the american museum of natural history. Order: chiroptera: second- largest mammalian order. 202 genera and 1,120 species: flight, echoloca. on in most species, exploit wide array of foods, temperate to tropical. Greatest diversity in tropical regions. Only terrestrial mammals on isolated oceanic islands: phylogeny becoming clearer. Adapted from simmons, n. b. , et al. , nature. 451 (2008):181- 821 and teeling, e. c. , et al. , science. Figure 15- 3a: the big fruit- ea. ng bat (ar#beus lituratus, phyllostomidae) Adapted from slaughter, b. h. , and walton: w. about bats. Figure 15- 3b: the western mas. bat (eumops pero#s, Adapted from wimsa], w. a. Flight: bats have rela. vely low wing loading. Ra. o of body weight to wing area: many bats have low aspect ra. o wings. Ra. o of wing span to wing depth: downstroke is power stroke, wing . ps twisted and provide addi. onal thrust. Flight: a few bats, such as nectar- feeding bats, can hover. Downstroke oriented forward and upstroke directed backwards.
