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DeAgamis2: 2nd INTERNATIONAL SYMPOSIUM ON AGAMID LIZARDS
In general, higher relationships in the genus Acanthocercus and its relationships to other Agami-nae genera are poorly understood, but especially the understanding of the different species and subspecies of the atricollis species group should be reviewed for the understanding of the zoogeographic history of eastern Africa. A dense sampling within the genus and to related genera is lacking but neces-
sary for testing monophyly, identifying sister taxa and distribution corridors. Herein a preliminary phy-logeny is presented to show radiations within the genus, taxonomic problems on species level and results on distribution pattern in comparison with other arid species groups in Africa.
Key words: Agamidae, Agaminae, Acantho-cercus, arid corridor, Africa.
ON THE THERMOBIOLOGY AND ACTIVITY PATTERN
OF THE LARGE HERBIVOROUS DESERT LIZARD UROMASTYXAEGYPTIA MICROLEPIS BLANFORD, 1875 AT MAHAZAT AS-SAYD PROTECTED AREA, SAUDI ARABIA
Thomas Wilms
Zoologischer Garten Frankfurt 1 Bemhard-Grzimek-Allee, D-60316 Frankfurt am Main, Germany E-mail: [email protected]
Field active body temperatures (Tb) and operative temperatures (Te) were assessed in a population of Uromastyx aegyptia microlepis at Mahazat as-Sayd Protected Area, Saudi Arabia to gain information on the extent and effectiveness of the thermoregulation in these animals. In summer Tb ranged between 23.2 and 47.2°C, in winter between 23.0 and 45.1°C and in spring between 25.5 and 45.9°C. There is a significant difference between respective Tb and Te distributions and all applied indices of thermoregulation suggest that U. a. microlepis is an active thermoregulator. Above ground activity, in-
ferred from Tb data, is very variable between seasons, with the highest activity level in spring. In winter the animals showed a unimodal activity profile, with the highest activity between 11:00 and 15:00. In spring and summer the lizards exhibit bimodal activity profiles with afternoon activity being generally lower than morning activity levels. At midday activity is generally significantly lowered.
Key words: Uromastyx aegyptia microlepis, thermobiology, activity profiles, field active body temperatures.
A REVIEW ON THE TAXONOMY OF THE GENERA UROMASTYX AND SAARA
Thomas Wilms 1, Philipp Wagner 2, and Wolfgang Böhme 2
1 Zoologischer Garten Frankfurt 1 Bemhard-Grzimek-Allee, D-60316 Frankfurt am Main, Germany E-mail: [email protected] 2 Zoologisches Forschungsmuseum A. Koenig 160 Adenauerallee, D-53113 Bonn, Germany E-mail: [email protected], [email protected]
The taxonomic relationships within the genus Uromastyx Merrem, 1820 were assessed using morphological and genetic methods, resulting in the resurrection of the genus Saara Gray, 1845 for Saara
hardwickii, S. asmussi and S. loricata. A synopsis of all taxa considered to be valid within Uromastyx and Saara is provided.
Key words: Uromastyx, Saara, taxonomy.
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DeAgamis2: ВТОРОЙ МЕЖДУНАРОДНЫЙ СИМПОЗИУМ ПО АГАМОВЫМ ЯЩЕРИЦАМ
BIOGEOGRAPHY AND SYSTEMATICS OF THE GENUS ACANTHOSAURA GRAY 1931 (SQUAMATA: AGAMIDAE) INFERRED FROM MITOCHONDRIAL
AND NUCLEAR GENES
Perry Lee Wood Jr., Todd R. Jackman, Aaron M. Bauer, L. Lee Grismer, Kumthorn Thirakhupt, Anchalee Aowphol, Jesse L. Grismer, Chan Kin Onn, Norhayati Ahmad
Department of Biology, Villanova University 800 Lancaster Ave, Villanova, PA, 19085, USA E-mail: [email protected]
The Southeast Asian lizard genus Acan-thosaura is distributed throughout Myanmar, Thailand, Cambodia, Laos, China, Malaysia, and its offshore islands, Pulau Aur, Pulau Tioman, Pulau Penang, Pulau Perhentian, and Pulau Langkawi. I investigated the phylogenetic relationships of all nine of the currently recognized species of Acan-thosaura using one mitochondrial gene (ND2 859bp) and three nuclear genes (KIF24 502bp; PRLR 583bp; MXRA5 860bp). Maximum parsimony, maximum likelihood, and Bayesian analyses of the mitochondrial DNA recover the wide-ranging Acanthosaura lepidogaster as a paraphyletic group. Acanthosaura lepidogaster from Vietnam, Laos, and China form a monophyletic group, but A. lepi-
dogaster from Myanmar are sister to A. crucigera from Thailand and southern Myanmar and an unde-scribed species from Cambodia.
Acanthosaura bintangensis and A. titiwang-saensis form a monophyletic group with A. armata. There are two distinct clades within in the A. armata clade, one from the Seribuat Archipelago and the rest from Peninsular Malaysia and its other adjacent islands. The nuclear gene trees resolve the shallow nodes except that A. crucigera comes out para-phyletic with the undescribed species from Cambodia and A. armata from Peninsular Malaysia. This could be due to incomplete lineage sorting.
Key words: Agamidae, Acanthosaura, bio-geography.
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СОВРЕМЕННАЯ ГЕРПЕТОЛОГИЯ 2010 Т. 10, вып. 3/4
