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A review of evolutionary research on birds of the New Guinean savannas and closely associated habitats of riparian rainforests, mangroves and grasslands
Emu - Austral Ornithology ( IF 1.3 ) Pub Date : 2019-05-27 , DOI: 10.1080/01584197.2019.1615844
Leo Joseph 1 , K. D. Bishop 2 , Christopher A. Wilson 1 , Scott V. Edwards 3 , Bulisa Iova 4 , Catriona D. Campbell 1 , Ian Mason 1 , Alex Drew 1
Affiliation  

ABSTRACT Three isolated areas of non-rainforested open woodland habitats, often collectively termed ‘savanna’, occur in eastern New Guinea and are here termed the Trans-Fly, Central Province and Oro Province savannas. Their avifauna is mostly shared with eucalypt-dominated savannas widespread across tropical and subtropical Australia. Though the avifaunas of these New Guinean savanna regions are well-inventoried, their potential for evolutionary and ecological research has been relatively little explored. We outline the distribution and palaeoenvironmental history of these New Guinean savannas. We describe the often underappreciated floristic uniqueness and complexity of the largest bloc, which is the Trans-Fly. We discuss avian endemism and species diversity in the New Guinean savannas and we review divergence of the New Guinean populations of savanna birds from their closest relatives, usually in Australia. We review molecular phylogeographic patterns evident in New Guinea savanna birds. Several species are closest to populations or other species in north-western Australia not the geographically closer north-eastern Australia. We discuss palaeo-modelling of Pleistocene habitats that explains this. We review bird migration between Australia and the Trans-Fly. Throughout, we highlight areas for further research such as the origin of the Oro Province savannas and the origins of several distribution patterns that seem particularly puzzling.

中文翻译:

新几内亚稀树草原鸟类和河岸雨林、红树林和草原密切相关栖息地的进化研究综述

摘要 三个孤立的非雨林开阔林地栖息地,通常统称为“稀树草原”,出现在新几内亚东部,这里被称为跨飞、中央省和奥罗省稀树草原。他们的鸟类主要与分布在澳大利亚热带和亚热带地区的以桉树为主的稀树草原共享。尽管这些新几内亚热带稀树草原地区的鸟类资源丰富,但它们在进化和生态研究方面的潜力却鲜有探索。我们概述了这些新几内亚稀树草原的分布和古环境历史。我们描述了最大的群体(即 Trans-Fly)经常被低估的植物区系独特性和复杂性。我们讨论了新几内亚稀树草原鸟类的特有现象和物种多样性,并回顾了新几内亚稀树草原鸟类与其最近亲(通常在澳大利亚)之间的差异。我们回顾了新几内亚稀树草原鸟类中明显的分子系统地理学模式。有几个物种最接近澳大利亚西北部的种群或其他物种,而不是地理上更接近澳大利亚东北部的物种。我们讨论了解释这一点的更新世栖息地的古模型。我们回顾了澳大利亚和 Trans-Fly 之间的鸟类迁徙。在整个过程中,我们重点介绍了需要进一步研究的领域,例如奥罗省稀树草原的起源以及似乎特别令人费解的几种分布模式的起源。我们回顾了新几内亚稀树草原鸟类中明显的分子系统地理学模式。有几个物种最接近澳大利亚西北部的种群或其他物种,而不是地理上更接近澳大利亚东北部的物种。我们讨论了解释这一点的更新世栖息地的古模型。我们回顾了澳大利亚和 Trans-Fly 之间的鸟类迁徙。在整个过程中,我们重点介绍了需要进一步研究的领域,例如奥罗省稀树草原的起源以及似乎特别令人费解的几种分布模式的起源。我们回顾了新几内亚稀树草原鸟类中明显的分子系统地理学模式。有几个物种最接近澳大利亚西北部的种群或其他物种,而不是地理上更接近澳大利亚东北部的物种。我们讨论了解释这一点的更新世栖息地的古模型。我们回顾了澳大利亚和 Trans-Fly 之间的鸟类迁徙。在整个过程中,我们重点介绍了需要进一步研究的领域,例如奥罗省稀树草原的起源以及似乎特别令人费解的几种分布模式的起源。
更新日期:2019-05-27
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