Topics: Davao del Norte, Island Garden City of Samal, Davao Region Pages: 9 (3009 words) Published: July 12, 2013

An Undergraduate Research
Presented to
Prof. Zeny Egut
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

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 Greater spear nosed bat, are omnivorous, feeding on vertebrates, insects and fruit. The Monfort Bat Sanctuary is home to 1.8 million Geoffroy’s Rousette fruit bats (Rousettus amplexicaudatus) – the largest known colony of the species in the world. The bats all live in a single cave – guests aren’t allowed to enter, but they can peer over bamboo railings into any of five openings where the seething masses of sleeping fruit bats can be seen coating the cave walls. Fruit bats such as the Geoffrey's Rousette Fruit Bat (Rousetteus amplexicaudatus) which are the inhabitants of the Monfort bat-cave in Samal Islands is one of the example of a beneficial bats present in our ecosystem. And yet little do we know that these creatures are deteriorating in numbers and are endangering because of human disturbances. Hunting and poaching poses a great danger to this bats, not only that, human disturbances such as expansion of subdivisions which may destroy natural caves which bats inhabits proposes a destruction of the species which may lead to endangering of their kind. Thanks to the kind hear of Mrs. Monfort, her strive for conservation of the wonderful habitat had conserved millions of fruit bats. Until now, her great efforts in conserving and improving the bat sanctuary she vowed to preserve are extraordinary and exemplary. The people of her likes are one of the inspirations of modern conservation groups due to her efforts in maintaining the habitat of the fruit bats (Bonaccorso 1998). Since the opening of the bat sanctuary started on January 2006 for public viewing of the habitat, there is increase of number of people that goes to the cave each and every month. Tourism now started at the Monfort bat-cave. In the past, Ms. Monfort didn’t charge admission for visitors. This changed when a Filipino TV station featured the cave on one of their shows. The resulting publicity was both good and bad for the bats: “The Department of Tourism asked me if I would allow the film crew...

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
Locke, R. (2006, ). Security alert:. Retrieved 2012, from
Battad, D. (2011, July 5). Come visit Davao: Monfort Bat Cave.Retrieved Oct 8, 2012, from
Aquino, M. (2010, ). Monfort Bat sanctuary, Bat cave on Samal Island near Davao City, Philippines. Retrieved Oct 8, 2012, from
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