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Indo-Pacific crocodiles
also need conservation
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ENVIRONMENTAL
BYANGEL C. ALCALA
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Last week this column made a strong plea to conserve the endemic
Philippine Crocodile. Today, I am also recommending not only the
commercial use of the Indo-Pacific Crocodile but also its conservation
whenever and wherever it is feasible to do so. The reason for this
suggestion is the significant direct impact of this species on aquatic
communities that could lead to improvement of human life. I refer
to its role as keystone species in Philippine river systems and
marshes. Like the Philippine Crocodile, this crocodile could improve
crop and fishery production, a researchable topic for ecologically-minded
students.
There are a number of natural aquatic areas where the Fittkau
hypothesis based on observations on caimans in South America, described
in the preceding column in this newspaper, can be tested.
The Agusan and Ligawasan Marshes on Mindanao, Naujan Lake on Mindoro
Island, and the islands of Bugsuk and Balabac off southern Palawan
Island are among the natural habitats that can possibly be utilized
for controlled experiments. In addition, our friends in the private
sector already involved in crocodile captive breeding may be able
to create similar situations conducive to experimental manipulation
to verify the hypothesis. A couple of Graduate School students have
signified their intention to conduct the suggested research under
our guidance at Silliman University.
It is important that competent and experienced ecologists/natural
scientists with track records in scholarly publications should be
available to guide these students to ensure credible and reliable
research observations complete with adequate controls. Unfortunately,
not many senior researchers are found in the Philippines, and research
outputs often suffer from lapses in methodology and/or data analysis.
This situation must not be allowed to continue. What are needed
are well-trained research academics, which are still in short supply
in this country---a challenge to academic institutions. Conservation
areas for both species of crocodiles in the Philippines are therefore
needed. These areas must be protected, and the only viable strategy
for crocodile conservation, based on my wide and long experience
in the conservation of herpetofauna is that which involves scientists,
the private sector, local communities and local government units
with the Department of Environment serving as program facilitator
and overseer of national policy.
I am referring to our Filipino people, not to foreigners. The
Philippines has produced some competent conservationists and educators
who must lead the way for crocodile conservation but are open to
assistance from outsiders.
The Crocodile Forum could well start the identification of discrete
populations and habitats (islands, lakes, marshes, swamps) and the
outlines of specific projects (research, conservation) for both
species to be carried out this year.*
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