棉兰老岛东北溪蛙Sanguirana albotuberculata(Inger 1954)的分类重新评估、Rana mearnsi的验证、Stejneger 1905和菲律宾中部一新种的描述

IF 1.1 2区 生物学 Q3 ZOOLOGY
Rafe M. Brown, Allyson Prue, C. Onn, M. Gaulke, Marites B. Sanguila, Cameron D. Siler
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引用次数: 7

摘要

摘要:  以已发表的多点系统发育分析为指导,我们使用来自外部表型和进化谱系的遗传定义分布的新数据来解决与棉兰老西南流蛙Sanguirana everetti(Boulenger 1882)、其初级同义词Rana mearnsi、Stejneger 1905和棉兰老东北流蛙相关的物种边界,桑圭拉纳(Sanguirana albotuberculata)(Inger 1954)。对亲缘关系、分布、型位、表型数据和型标本的考虑清楚地表明,R.mearnsi和S.albotuberculata是指同一谱系,我们认识到该物种最古老的可用名称(Sanguirana mearnsi)。我们还将菲律宾中部谱系(来自内格罗斯岛、马斯巴特岛和帕奈岛)定义为一个独特的新物种。长期以来,这个新的分类单元与S.everetti混淆,很容易被诊断出来,并且在生物地理学上仅限于西维萨扬动物区。新的系统发育多点估计和我们对形态变异的多变量分析表明,该新物种与菲律宾北部的Sanguirana luzonensis亲缘关系密切,表型最相似,但不包括之前与之混淆的南部物种S.everetti。区分新物种的形态特征包括体型、没有泄殖腔下结节、有光滑的背侧皮肤而没有背外侧褶皱或真皮凸起、其性别大小的二型性程度、独特的分层侧翼颜色、明亮的白色关节下结节、大胆的胸肌斑块、四肢上的深色横杠以及各种身体比例。对这一新物种的认识进一步强调了菲律宾岛岸结构特有性的可预测性,并表明该国的脊椎动物多样性仍然被低估。这种新物种相对罕见,分布零散,而且菲律宾中部的天然森林所剩无几,这是一个紧迫的保护问题。要解决这个问题,需要持续、实地收集有关新物种、分布、当地丰度、种群趋势、自然史、生殖生物学和幼虫生态学的数据,其中大部分目前尚不清楚。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Taxonomic Reappraisal of the Northeast Mindanao Stream Frog, Sanguirana albotuberculata (Inger 1954), Validation of Rana mearnsi, Stejneger 1905, and Description of a New Species from the Central Philippines
Abstract:  With a published multilocus phylogenetic analysis as our guide, we use new data from the external phenotype and genetically defined distributions of evolutionary lineages to resolve species boundaries associated with the southwest Mindanao Stream Frogs, Sanguirana everetti (Boulenger 1882), its junior synonym, Rana mearnsi, Stejneger 1905, and the northeast Mindanao Stream Frogs, Sanguirana albotuberculata (Inger 1954). Consideration of relationships, distributions, type localities, phenotypic data, and type specimens clearly indicates that the names R. mearnsi and S. albotuberculata refer to the same lineage, and we recognize the oldest available name (Sanguirana mearnsi) for this species. We also define the central Philippine lineage (from Negros, Masbate, and Panay islands) as a distinct new species. Long confused with S. everetti, the new taxon is readily diagnosed and biogeographically restricted to the West Visayan faunal region. The new multilocus estimate of phylogeny and our multivariate analysis of morphological variation demonstrate that the new species is closely related and phenotypically most similar to northern Philippine Sanguirana luzonensis, to the exclusion of S. everetti, the southern species with which it previously was confused. Morphological characters distinguishing the new species include body size, the absence of infracloacal tubercles, the presence of smooth dorsal skin without dorsolateral folds or dermal asperities, its degree of sexual size dimorphism, uniquely stratified flank coloration, bright white subarticular tubercles, bold pectoral patches, dark transverse bars on the limbs, and various body proportions. Recognition of this new species further emphasizes the predictable nature of island bank-structured endemism in the Philippines and demonstrates that the country's vertebrate diversity remains underestimated. The new species is relatively rare, patchily distributed and, with so little natural forest remaining in the central Philippines, it constitutes an immediate conservation concern. Management of this problem will require continued, field-based collection of data on the new species, distribution, local abundance, population trends, natural history, reproductive biology, and larval ecology—most of which currently is unknown.
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来源期刊
Herpetological Monographs
Herpetological Monographs 生物-动物学
CiteScore
5.40
自引率
0.00%
发文量
2
审稿时长
>12 weeks
期刊介绍: Since 1982, Herpetological Monographs has been dedicated to original research about the biology, diversity, systematics and evolution of amphibians and reptiles. Herpetological Monographs is published annually as a supplement to Herpetologica and contains long research papers, manuscripts and special symposia that synthesize the latest scientific discoveries.
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