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Three new monitor lizards from the Philippines identified

Date:
May 19, 2010
Source:
University of Bonn
Summary:
Scientists in Germany have described two new monitor lizard species (Varanus spp.) and one new subspecies from the Philippines. Their comprehensive study of the Philippine water monitors revealed that despite the recently discovered new and fruit-eating monitor species from the main island of Luzon by an American-Philippine research team, the real diversity of these giant lizards in the archipelago has not yet been understood.

One of the newly discovered monitor lizards (Varanus palawanensis).
Credit: Copyright Ingo Langlotz

German scientist André Koch from the Zoological Research Museum Alexander Koenig (ZFMK) in Bonn together with his supervisor Prof Dr Wolfgang Böhme and another colleague have described two new monitor lizard species (Varanus spp.) and one new subspecies from the Philippines in a recent article. Their comprehensive study of the Philippine water monitors revealed, that despite the recently discovered new and fruit-eating monitor species from the main island of Luzon by an American-Philippine research team, the real diversity of these giant lizards in the archipelago has not yet been understood.

The species descriptions were published in Zootaxa, the world's foremost journal for taxonomic zoology.

"After the spectacular discovery of several new monitor lizards from the Indonesian island of Sulawesi three years ago, our results now illustrate that the diversity of water monitor lizards in the Philippines has also been largely underestimated" says André Koch, who will soon complete his doctoral thesis at the University of Bonn. Southeast Asian monitor lizards are one main focus of his dissertation, which he writes at the Zoological Research Museum Alexander Koenig (ZFMK).

Prof Böhme, vice-director of the ZFMK and head of the herpetology section, has investigated monitor lizards since more than 20 years, and adds: "It's amazing that these largest living lizards of the world have been neglected for so long and that new species come up time and again. It shows that even with large vertebrates not all species of our planet are recognized and named. There are too few experts in the world, the education level at universities is declining and the essential knowledge about the global biodiversity stands to get lost!"

Co-author Dr Maren Gaulke (GeoBio-Center LMU, Munich), an expert for Philippine reptiles, particularly monitor lizards, has been studying the biology of these impressive giant reptiles for 25 years: "Monitor lizards are fantastic creatures. They are agile, powerful, and the most intelligent lizards of the world."

The three new Philippine monitors were identified based on examination of numerous preserved voucher specimens in various major European natural history museums, in combination with long-term studies in the field. This impressively demonstrates the immense importance of such museum collections as the archives of the global biodiversity. Unfortunately, in times of limited public funding, the necessary curatorial positions are often not reoccupied, when a scientist is retired. This disastrously affects not only the corresponding collections but also the related field of knowledge!

Thus, one of the new monitor species, which is known from only two specimens in the Zoological Museum of Copenhagen, was named after the late Jens B. Rasmussen, former herpetologist of the museum collections there, whose position was not reopened again. Thereby, the authors want also to call attention to the global taxonomy crisis.


Story Source:

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


Journal Reference:

  1. Koch, A., Gaulke, M. & Böhme W. Unravelling the underestimated diversity of Philippine water monitor lizards (Squamata: Varanus salvator complex), with the description of two new species and a new subspecies. Zootaxa, 2010; 2446: 1-54 [link]

Cite This Page:

University of Bonn. "Three new monitor lizards from the Philippines identified." ScienceDaily. ScienceDaily, 19 May 2010. <www.sciencedaily.com/releases/2010/05/100517070208.htm>.
University of Bonn. (2010, May 19). Three new monitor lizards from the Philippines identified. ScienceDaily. Retrieved September 1, 2014 from www.sciencedaily.com/releases/2010/05/100517070208.htm
University of Bonn. "Three new monitor lizards from the Philippines identified." ScienceDaily. www.sciencedaily.com/releases/2010/05/100517070208.htm (accessed September 1, 2014).

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