scholarly journals On the importance of habitat continuity for delimiting biogeographic regions and shaping richness gradients

2019 ◽  
Vol 22 (4) ◽  
pp. 664-673 ◽  
Author(s):  
Phillip B. Fenberg ◽  
Marcelo M. Rivadeneira
Keyword(s):  
Habitat Continuity ◽  
Biogeographic Regions

scholarly journals Systematic placement of an enigmatic Southeast Asian taxon Eupetes macrocerus and implications for the biogeography of a main songbird radiation, the Passerida

2007 ◽  
Vol 3 (3) ◽  
pp. 323-326 ◽  
Author(s):  
Knud A Jønsson ◽  
Jon Fjeldså ◽  
Per G.P Ericson ◽  
Martin Irestedt
Keyword(s):  
South African ◽  
Plate Tectonics ◽  
Molecular Data ◽  
Sister Taxon ◽  
Long Distance ◽  
Biogeographic History ◽  
Basal Group ◽  
History Of ◽  
Biogeographic Regions ◽  
Wallace’S Line

Biogeographic connections between Australia and other continents are still poorly understood although the plate tectonics of the Indo-Pacific region is now well described. Eupetes macrocerus is an enigmatic taxon distributed in a small area on the Malay Peninsula and on Sumatra and Borneo. It has generally been associated with Ptilorrhoa in New Guinea on the other side of Wallace's Line, but a relationship with the West African Picathartes has also been suggested. Using three nuclear markers, we demonstrate that Eupetes is the sister taxon of the South African genus Chaetops , and their sister taxon in turn being Picathartes , with a divergence in the Eocene. Thus, this clade is distributed in remote corners of Africa and Asia, which makes the biogeographic history of these birds very intriguing. The most parsimonious explanation would be that they represent a relictual basal group in the Passerida clade established after a long-distance dispersal from the Australo-Papuan region to Africa. Many earlier taxonomic arrangements may have been based on assumptions about relationships with similar-looking forms in the same, or adjacent, biogeographic regions, and revisions with molecular data may uncover such cases of neglect of ancient relictual patterns reflecting past connections between the continents.

scholarly journals A NEW BENT-TOED GECKO SPECIES OF THE GENUS Cyrtodactylus GRAY, 1827 (SQUAMATA : GEKKONIDAE) FROM THE WEST BALI NATIONAL PARK, BALI, INDONESIA

2020 ◽  
Vol 9 (1) ◽  
pp. 59-70
Author(s):  
A.A. Thasun Amarasinghe ◽  
◽  
Awal Riyanto ◽  
Mumpuni Mumpuni ◽  
Lee L. Grismer
Keyword(s):  
New Species ◽  
National Park ◽  
Detailed Examination ◽  
Type Material ◽  
Morphological Examination ◽  
The West ◽  
Biogeographic Regions

A new bent-toed gecko species of the genus Cyrtodactylus is described herein from West Bali National Park on the island of Bali, Indonesia. The Cyrtodactylus from Bali have been recognized as C. fumosus for nearly a century. However, recent detailed examination of the type material of C. fumosus has revealed that Balinese Cyrtodactylus represent at least one different species. A morphological examination of the new species and samples from different biogeographic regions revealed that the new species is similar to C. seribuatensis from Pulau Seribuat in West Malaysia. Morphologically, the new species can be distinguished from its congener by having 40–43 femoro-precloacal pores (vs 10–12 precloacal pores, 14–16 femoral pores), 40–48 ventral scales between ventrolateral folds (vs 28–39), 24–29 rows of dorsal tubercles (vs 27–35), and presence of tubercles on lateral skinfold (vs absent).

Distinguishing three distinct biogeographic regions with an in‐house developed 39‐AIM‐InDel panel and further admixture proportion estimation for Uyghurs

2019 ◽  
Vol 40 (11) ◽  
pp. 1525-1534 ◽  
Author(s):  
Qiong Lan ◽  
Chunmei Shen ◽  
Xiaoye Jin ◽  
Yuxin Guo ◽  
Tong Xie ◽  
...  
Keyword(s):  
Admixture Proportion ◽  
Proportion Estimation ◽  
Biogeographic Regions

Biodiversity conservation and vegetation clearing in Queensland: principles and thresholds

2002 ◽  
Vol 24 (1) ◽  
pp. 36 ◽  
Author(s):  
C. A. McAlpine ◽  
R. J. Fensham ◽  
D. E. Temple-Smith
Keyword(s):  
New England ◽  
Biodiversity Conservation ◽  
Wildlife Habitat ◽  
Native Vegetation ◽  
Detailed Knowledge ◽  
Resource Sustainability ◽  
The North ◽  
Remnant Vegetation ◽  
Biogeographic Regions ◽  
The Impact

Clearing of native vegetation is a major threat to biodiversity in Australia. In Queensland, clearing has resulted in extensive ecosystem transformation, especially in the more fertile parts of the landscape. In this paper, we examine Queensland, Australian and some overseas evidence of the impact of clearing and related fragmentation effects on terrestrial biota. The geographic focus is the semi-arid regions, although we recognise that coastal regions have been extensively cleared. The evidence reviewed here suggests that the reduction of remnant vegetation to 30% will result in the loss of 25–35% of vertebrate fauna, with the full impact not realised for another 50–100 years, or even longer. Less mobile, habitat specialists and rare species appear to be particularly at risk. We propose three broad principles for effective biodiversity conservation in Queensland: (i) regional native vegetation retention thresholds of 50%; (ii) regional ecosystem thresholds of 30%; and (iii) landscape design and planning principles that protect large remnants, preferably > 2000 ha, as core habitats. Under these retention thresholds, no further clearing would be permitted in the extensively cleared biogeographic regions such as Brigalow Belt and New England Tablelands. Some elements of the biota, however, will require more detailed knowledge and targeted retention and management to ensure their security. The application of resource sustainability and economic criteria outlined elsewhere in this volume should be applied to ensure that the biogeographic regions in the north and west of Queensland that are largely intact continue to provide extensive wildlife habitat.

scholarly journals HABITAT CONTINUITY AND THE GENETIC STRUCTURE OFDROSOPHILAPOPULATIONS

Evolution ◽  
1997 ◽  
Vol 51 (4) ◽  
pp. 1326-1332 ◽  
Author(s):  
D. DeWayne Shoemaker ◽  
John Jaenike
Keyword(s):  
Genetic Structure ◽  
Habitat Continuity

scholarly journals Habitat continuity and stepping-stone oceanographic distances explain population genetic connectivity of the brown alga Cystoseira amentacea

2017 ◽  
Vol 26 (3) ◽  
pp. 766-780 ◽  
Author(s):  
Roberto Buonomo ◽  
Jorge Assis ◽  
Francisco Fernandes ◽  
Aschwin H. Engelen ◽  
Laura Airoldi ◽  
...  
Keyword(s):  
Brown Alga ◽  
Population Genetic ◽  
Genetic Connectivity ◽  
Stepping Stone ◽  
Habitat Continuity
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