A new species of insular treefrog in the Litoria thesaurensis species group from the Nakanai Mountains, New Britain, Papua New Guinea

IF 2.4 2区 生物学 Q1 ZOOLOGY Vertebrate Zoology Pub Date : 2022-11-22 DOI:10.3897/vz.72.e91422
S. Richards, P. Oliver
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Abstract

The Islands of East Melanesia have a unique and highly endemic frog fauna derived entirely from overseas colonisation events. Within East Melanesia New Britain is a notable centre of frog diversity and endemism, with at least 15 endemic species, mostly in the ceratobatrachid genus Cornufer. Here we describe the first endemic pelodryadid treefrog from New Britain. The new species is a member of the Litoria thesaurensis species group but can be distinguished from near relatives by aspects of body size, webbing extent, bone pigmentation and male advertisement call. The two known specimens of the new species were collected in Hill Forest on karst basement in the Nakanai Mountains in East New Britain. The new species provides new evidence of diversification of insular PelodrydidaePelodrydidae, and reinforces New Britain, and especially the predominantly karst Nakanai mountains, as a hotspot of frog diversity in East Melanesia. In light of high rates of forest loss and conversion New Britain is also a region of significant conservation concern.
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巴布亚新几内亚新不列颠Nakanai山区Litoria thesaurrensis种群岛树蛙一新种
东美拉尼西亚群岛有一种独特且高度特有的青蛙动物群,完全源于海外殖民事件。在东美拉尼西亚,新不列颠是青蛙多样性和特有性的显著中心,至少有15种特有物种,主要在角管蛙属。在这里,我们描述了来自新不列颠的第一种当地特有的pelodryadid树蛙。该新种是叙词表Litoria叙词表的一员,但可以从体型、织带范围、骨骼色素沉着和雄性广告叫声等方面与近亲属区分。这两个已知的新种标本是在新不列颠东部Nakanai山脉喀斯特基底的Hill Forest采集的。这一新物种为岛蛙科的多样化提供了新的证据,并加强了新不列颠,特别是以喀斯特为主的纳卡奈山脉,成为东美拉尼西亚青蛙多样性的热点。鉴于森林损失率和转化率很高,新不列颠也是一个备受保护的地区。
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来源期刊
CiteScore
4.00
自引率
19.00%
发文量
42
审稿时长
>12 weeks
期刊介绍: Research fields covered by VERTEBRATE ZOOLOGY are ta‍xo‍no‍my, mor‍pho‍logy, an‍at‍omy, phy‍lo‍ge‍ny (mo‍le‍cu‍lar and mor‍pho‍lo‍gy-based), hi‍sto‍ri‍cal bio‍geo‍gra‍phy, and pa‍lae‍on‍to‍lo‍gy of ver‍te‍bra‍tes.
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