An Undergraduate Research
Presented to
Prof. Zeny Egut
And
Davao Doctors College
(Biology Dept.)
In Partial Fulfilment
Of the requirements in Biology101
Jan Lynuel C. Sedayao
Regie V. Petin
Czar Vincent L. Rojoca
James Mar S. Moises
Kaissar B. Latayada
September 2012
Chapter 1
INTRODUCTION
Background of the Study
Bats are one of the most misunderstood creatures in the world. They are often ridiculed and have acquired an impression as a blood sucking creature related to Count Dracula and are only a pestilence of the humanity and needed to be eradicated. There is even a movie that portrays bats (not batman) as the beings who sucks blood and kills human beings and swarms in every place craving for blood and chaos. But as learned earlier, they are misunderstood due to humanities impression to these creatures; in fact, they play a great role in our ecosystem as predator of harmful insects such as mosquitoes and pollinators of flowers and fruits.
Nearly one quarter of mammalian species are bats (Mammals:2 1984). Apart from birds, they are the only other vertebrates capable of sustained flight. They use echolocation in flying and hunting. They are under the order Chiroptera with eighteen living families, 174 genera, and about 900 living species (Britannica 1943). They occupy most niches in all habitats except polar or the highest alpine regions and the oceans. Most are insectivorous, but there are wide ranges of diets: insects, caught in flight at rest; other anthropods, including scorpions, woodlice and shrimps; vertebrates, including mice, other bats, lizards, amphibians and fish, and blood of mammals or birds, as well as fruits, flowers, pollen, nectar and some foliage. While most bats specialize on a relatively narrow diet range, with none more limited than the Common vampire which feeds throughout its life on blood of mostly one breed of cattle, some, like the
References: Payne, J. & Francis, C.M. (1985). A field guide to the mammals of Borneo. Sabah Society: Malaysia. p. 171. Bonaccorso, F.J. (1998). Bats of Papua New Guinea. Washington, D.C.: Conservation International. pp. 151-155. Aquino, M. (2010, ). Monfort Bat Sanctuary, Bat Cave on Samal Island Near Davao City, Philippines. Retrieved 2012, from http://goseasia.about.com/od/philippinestopattractions/a/Monfort-Bat-Sanctuary-Samal-Island-Philippines.htm Locke, R. (2006, ). Security alert:. Retrieved 2012, from http://goseasia.about.com/gi/o.htm?zi=1%2FXJ&zTi=1&sdn=goseasia&cdn=travel&tm=54&f=10&su=p284.13.342.ip_p531.60.342.ip_&tt=2&bt=1&bts=1&zu=http%3A%2F%2Fwww.batcon.org%2Findex.php%2Fmedia-and-info%2Fbats-archives.html%3Ftask%3DviewArticle%26magArticleID%3D173 Battad, D. (2011, July 5). Come visit Davao: Monfort Bat Cave.Retrieved Oct 8, 2012, from http://davaocitybybattad.blogspot.com/2011/07/monfort-bat-cave.html Aquino, M. (2010, ). Monfort Bat sanctuary, Bat cave on Samal Island near Davao City, Philippines. Retrieved Oct 8, 2012, from http://goseasia.about.com/od/philippinestopattractions/a/Monfort-Bat-Sanctuary-Samal-Island-Philippines.htm