Transactions of the National Academy of Science and Technology
As a response to the destruction of coral reef ecosystems, parts of the islands of Sumilon and Ap... more As a response to the destruction of coral reef ecosystems, parts of the islands of Sumilon and Apo in Central Visayas were set up as No-Take Marine Reserves (NTMR) as a strategy of conservation for coral reef and associated marine systems by the Biology Department of Silliman University in 1974. Sumilon NTMR was managed by the University for 10 years (1974–1984) and Apo NTMR for 12 years (1982–1994). Beginning from 1983 to the present, Professor Garry R. Russ of James Cook University became Silliman’s collaborator. The two coral reef systems were monitored following the methodology in the Australia-ASEAN Project manual and the genetic parentage analysis. In our work on these two reserves, we obtained the cooperation local communities in the process of setting them up. The results of the nearly annual monitoring of these two NTMRs showed that over the years the fish biomass in the NTMRs increased and fish yields of fishers likewise increased over the years. There was also evidence th...
To elucidate effects of fragmentation and degradation of tropical rainforest on Negros Island (Ph... more To elucidate effects of fragmentation and degradation of tropical rainforest on Negros Island (Philippines) on tropical herpetofauna, nine tropical rainforest fragments (eight limestone and one non-limestone), ranging in area from five to 122 ha (total area = 352 ha) in south-western Negros were surveyed using cruising and quadrat sampling methods, between December 2001 and October 2002. A 14-ha limestone plantation forest served as a reference site. Ten to fifteen of the total 61 species (16.4–24.6%) expected in the nine forest fragments (taken as a whole) had been lost in the previous 50 years. These species are known to occur in the tropical rainforest on Cuernos de Negros and environs in south-eastern Negros Island at altitudes <500 m above sea level. The factors responsible for the loss of these species appear to be (1) removal of large trees, which decreases canopy cover causing physical changes; and (2) forest fragmentation, which increases the edge areas. However, it is n...
The presentation of material in this document and the geographical designations employed do not i... more The presentation of material in this document and the geographical designations employed do not imply the expression of any opinion whatsoever on the part of any of the agencies involved, concerning the legal status of any country, territory, or area, or concerning the delimitation of its frontiers of boundaries.
Ten species of Draco are recognized in the Philippines including one described as new. For each s... more Ten species of Draco are recognized in the Philippines including one described as new. For each species, a diagnosis, description of squamation and color pattern, and summaries of distribution and natural history are provided. Keys to the Draco of the Philippines are also provided. The geographic distributions of Philippine Draco species are largely concordant with aggregate island complexes formed when sea levels were lower in the late Pleistocene. The biogeography of Palawan Island is considered in the context of Draco and found to be inconsistent with the standard model treating Palawan as an extension of the Greater Sunda Shelf.
... Philippine amphibians: An illustrated field guide. Post a Comment. CONTRIBUTORS: Author: Alca... more ... Philippine amphibians: An illustrated field guide. Post a Comment. CONTRIBUTORS: Author: Alcala, Angel C. Author: Brown, Walter C. (b. 1913, d. ----. PUBLISHER: Bookmark (Makati City, Philippines). SERIES TITLE: YEAR: 1998. PUB TYPE: Book (ISBN 9715693148 ). ...
... Studies of Neotropical LITERATURE CITED SMITH, HOBART M. AND EDWARD H. TAYLOR. 1945. ... A Ne... more ... Studies of Neotropical LITERATURE CITED SMITH, HOBART M. AND EDWARD H. TAYLOR. 1945. ... A New Frog of the Genus Cornufer (Ranidae) with Notes on Other Amphibians Known from Bohol Island, Philippines WALTER C. BROWN AND ANGEL C. ALCALA ...
Page 1. OCCASIONAL PAPERS OF THE CALIFORNIA ACADEMY OF SCIENCES No. 84, 8 pages, 1 figure, 2 tabl... more Page 1. OCCASIONAL PAPERS OF THE CALIFORNIA ACADEMY OF SCIENCES No. 84, 8 pages, 1 figure, 2 tables. September 17, 1970 A New Species of the Genus Platymantis (Ranidae) with a List of Amphibians Known from South Gigante Island, Philippines ...
Transactions of the National Academy of Science and Technology
As a response to the destruction of coral reef ecosystems, parts of the islands of Sumilon and Ap... more As a response to the destruction of coral reef ecosystems, parts of the islands of Sumilon and Apo in Central Visayas were set up as No-Take Marine Reserves (NTMR) as a strategy of conservation for coral reef and associated marine systems by the Biology Department of Silliman University in 1974. Sumilon NTMR was managed by the University for 10 years (1974–1984) and Apo NTMR for 12 years (1982–1994). Beginning from 1983 to the present, Professor Garry R. Russ of James Cook University became Silliman’s collaborator. The two coral reef systems were monitored following the methodology in the Australia-ASEAN Project manual and the genetic parentage analysis. In our work on these two reserves, we obtained the cooperation local communities in the process of setting them up. The results of the nearly annual monitoring of these two NTMRs showed that over the years the fish biomass in the NTMRs increased and fish yields of fishers likewise increased over the years. There was also evidence th...
To elucidate effects of fragmentation and degradation of tropical rainforest on Negros Island (Ph... more To elucidate effects of fragmentation and degradation of tropical rainforest on Negros Island (Philippines) on tropical herpetofauna, nine tropical rainforest fragments (eight limestone and one non-limestone), ranging in area from five to 122 ha (total area = 352 ha) in south-western Negros were surveyed using cruising and quadrat sampling methods, between December 2001 and October 2002. A 14-ha limestone plantation forest served as a reference site. Ten to fifteen of the total 61 species (16.4–24.6%) expected in the nine forest fragments (taken as a whole) had been lost in the previous 50 years. These species are known to occur in the tropical rainforest on Cuernos de Negros and environs in south-eastern Negros Island at altitudes <500 m above sea level. The factors responsible for the loss of these species appear to be (1) removal of large trees, which decreases canopy cover causing physical changes; and (2) forest fragmentation, which increases the edge areas. However, it is n...
The presentation of material in this document and the geographical designations employed do not i... more The presentation of material in this document and the geographical designations employed do not imply the expression of any opinion whatsoever on the part of any of the agencies involved, concerning the legal status of any country, territory, or area, or concerning the delimitation of its frontiers of boundaries.
Ten species of Draco are recognized in the Philippines including one described as new. For each s... more Ten species of Draco are recognized in the Philippines including one described as new. For each species, a diagnosis, description of squamation and color pattern, and summaries of distribution and natural history are provided. Keys to the Draco of the Philippines are also provided. The geographic distributions of Philippine Draco species are largely concordant with aggregate island complexes formed when sea levels were lower in the late Pleistocene. The biogeography of Palawan Island is considered in the context of Draco and found to be inconsistent with the standard model treating Palawan as an extension of the Greater Sunda Shelf.
... Philippine amphibians: An illustrated field guide. Post a Comment. CONTRIBUTORS: Author: Alca... more ... Philippine amphibians: An illustrated field guide. Post a Comment. CONTRIBUTORS: Author: Alcala, Angel C. Author: Brown, Walter C. (b. 1913, d. ----. PUBLISHER: Bookmark (Makati City, Philippines). SERIES TITLE: YEAR: 1998. PUB TYPE: Book (ISBN 9715693148 ). ...
... Studies of Neotropical LITERATURE CITED SMITH, HOBART M. AND EDWARD H. TAYLOR. 1945. ... A Ne... more ... Studies of Neotropical LITERATURE CITED SMITH, HOBART M. AND EDWARD H. TAYLOR. 1945. ... A New Frog of the Genus Cornufer (Ranidae) with Notes on Other Amphibians Known from Bohol Island, Philippines WALTER C. BROWN AND ANGEL C. ALCALA ...
Page 1. OCCASIONAL PAPERS OF THE CALIFORNIA ACADEMY OF SCIENCES No. 84, 8 pages, 1 figure, 2 tabl... more Page 1. OCCASIONAL PAPERS OF THE CALIFORNIA ACADEMY OF SCIENCES No. 84, 8 pages, 1 figure, 2 tables. September 17, 1970 A New Species of the Genus Platymantis (Ranidae) with a List of Amphibians Known from South Gigante Island, Philippines ...
Uploads
Papers by Angel Alcala