Unexpected Discovery of Another New Species of Philippine False Gecko (Gekkonidae; Pseudogekko) from the Bicol Peninsula of Luzon Island
Unexpected Discovery of Another New Species of Philippine False Gecko (Gekkonidae; Pseudogekko) from the Bicol Peninsula of Luzon Island
复制标题
吕宋岛比科尔半岛意外发现菲律宾假壁虎（壁虎科；Pseudogekko）的另一种新种
作者：
Rafe M. Brown;Camila G. Meneses;P. L. Wood;Jason B. Fernandez;M. Cuesta;Michael A. Clores;C. Tracy;Matthew D Buehler;Cameron D. Siler
摘要菲律宾假壁虎（属Pseudogekko）是秘密的，微妙的，细长的身体，专性森林专家分支，是大大超过以前假设的物种多样性的树栖成员。在过去的世纪，很少有物种被添加到这个菲律宾特有属。然而，在过去的十年里，修订研究已经识别出六个新物种。其中一些似乎是罕见的，有限制的地理范围，或表现出斑片状，分散的地区发生。在这项研究中，我们报告的第二个吕宋岛物种的发现在P. brevipes复杂，一个分支，其中成员通常有小型机构。虽然新物种很容易从所有同源物中诊断出来，但我们用DNA序列数据的系统发育分析估计了它的系统亲和力，并确认它嵌套在短足裸腹蛛分支内。新物种构成了一个例外的一般外观的其他成员的P. brevipes复杂，因为它有一个相对沉重的身体，强大的身材，分离它的表型从所有成员的组。我们的新物种构成了这组雨林物种中的第二个吕宋血统（以前被认为仅限于群岛中部和南部陆块的Negros-Panay和棉兰老岛更新世聚合岛屿复合体[PAIC]）。由于缺乏关于比科尔半岛主要剩余森林的现有生物多样性信息，这些信息必须来自有针对性的动物群调查，因此尚无法评估新物种的养护状况。鉴于吕宋岛南部森林栖息地的高度分散性，我们怀疑新物种可能会因栖息地丧失而濒临灭绝。
Abstract Philippine False Geckos (genus Pseudogekko) are secretive, delicate, slender-bodied, arboreal members of an obligate forest specialist clade that is substantially more species diverse than previously assumed. Over the last century, few species were added to this Philippine endemic genus. During the last decade, however, revisionary studies have resulted in the recognition of six new species. Several of these appear to be rare, have restricted geographic ranges, or exhibit patchy, fragmented areas of occurrence. In this study we report on the discovery of a second Luzon Island species in the P. brevipes complex, a clade in which members typically have diminutive bodies. Although the new species is readily diagnosed from all congeners, we estimated its systematic affinities with a phylogenetic analysis of DNA sequence data and confirm that it is nested within the P. brevipes clade. The new species constitutes an exception to the general appearance of other members of the P. brevipes complex, in that it has a relatively heavy-bodied, robust stature, separating it phenotypically from all members of the group. Our new species constitutes the second Luzon lineage in this group of rainforest species (considered previously to be restricted to the Negros-Panay and Mindanao Pleistocene aggregate island complexes [PAICs] in the central and southern landmasses of the archipelago). Given the lack of available biodiversity information for the major remaining forests of the Bicol Peninsula, which necessarily come from targeted faunal surveys, the new species' conservation status cannot yet be assessed. In light of the highly fragmented nature of forested habitats of southern Luzon, we suspect the new species might be vulnerable to extinction as a result of habitat loss.