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The amazing amphibians and reptiles of the Philippine island Luzon

Date:
February 7, 2013
Source:
Pensoft Publishers
Summary:
Renewed interest in exploring the unique fauna of the northern Philippines has produced a series of notable discoveries, drawing attention to the astonishingly high level of species diversity in this small island archipelago. A recent categorization of the amphibians and reptiles of the Luzon Island offers insight into the unexpected variety of fascinating species that occur there and no where else in the world.

This picture shows the bizarre soft-shell turtle Pelochelys cantorii from the vicinity of San Mariano.
Credit: Rafe M. Brown

A recent study of the amphibians and reptiles of Sierra Madre Mountain Range, northeastern Luzon, reveals a preliminary enumeration of more than 100 species that contribute to the unique biodiversity of the region. At present, the Luzon region's herpetological range stands at more than 150 species. Out of these, a total of 49 amphibian species have been documented, 44 of which are native and a remarkable 32 endemic. In the world of reptiles, Luzon can boast with 106 native species, 76 of which are unique to this region.

The catalogue published in the open access journal Zookeys features a fascinating range of reptiles and amphibians, such as the beautifully coloured colubrid snake Hologerrhum philippinum, which is one of the four endemic snake genera from the region and can be recognized by the vibrant-yellow skin decoration. Another species that provokes amazement is the bizarre soft-shell turtle Pelochelys cantorii. The variety described in this study includes fascinating frogs, crocodiles, snakes, lizards and many more, offering a menagerie of shapes and colours all documented in stunning photography.

With such a great array of biodiversity, the northern Philippines has been the focus of of large numbers of new species discoveries and re-discoveries of new species in recent decades, establishing it as a major regional biodiversity hotspot. The herpetological diversity of the island may grow to as many as 90-100 (70-80% endemic) amphibian species and as many as 150-160 reptiles with the contributions of ongoing biodiversity studies in the near future. It will be a major challenge to monitor these communities through time in order to assess their responses to land use changes, climate change, resource extraction, introduced species, emerging infectious disease, and habitat degradation.

With the initial baseline information provided in the survey, tremendous opportunities exist for future studies in taxonomy, biogeography, ecology and conservation of northern Luzon's amphibians and reptiles. Conservation of Luzon's vertebrate biodiversity remains an on-going effort, challenged by rapid development,logging, mining and conversion of natural habitats into agricultural lands to provide food for a burgeoning human population.


Story Source:

The above story is based on materials provided by Pensoft Publishers. Note: Materials may be edited for content and length.


Journal Reference:

  1. Rafe Brown, Cameron Siler, Carl Oliveros, Luke Welton, Ashley Rock, John Swab, Merlijn Van Weerd, Jonah van Beijnen, Dominic Rodriguez, Edmund Jose, Arvin Diesmos. The amphibians and reptiles of Luzon Island, Philippines, VIII: the herpetofauna of Cagayan and Isabela Provinces, northern Sierra Madre Mountain Range. ZooKeys, 2013; 266 (0): 1 DOI: 10.3897/zookeys.266.3982

Cite This Page:

Pensoft Publishers. "The amazing amphibians and reptiles of the Philippine island Luzon." ScienceDaily. ScienceDaily, 7 February 2013. <www.sciencedaily.com/releases/2013/02/130207141657.htm>.
Pensoft Publishers. (2013, February 7). The amazing amphibians and reptiles of the Philippine island Luzon. ScienceDaily. Retrieved April 18, 2014 from www.sciencedaily.com/releases/2013/02/130207141657.htm
Pensoft Publishers. "The amazing amphibians and reptiles of the Philippine island Luzon." ScienceDaily. www.sciencedaily.com/releases/2013/02/130207141657.htm (accessed April 18, 2014).

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