A geographical history of mammals

Lydekker, Richard

doi:10.5962/bhl.title.31155

Cited by 76 publications

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“…Many boundary lines have been proposed between these two faunal regions (for a review see Simpson, 1977 andCox, 2001). When one considers the water mite fauna, Lydekker's Line (Lydekker, 1896) seems to match most closely the boundary of the Australasian fauna. Lydekker's Line corresponds with the edge of the continental shelf of New Guinea and Australia.…”

Section: Global Distribution Patternsmentioning

confidence: 99%

Global diversity of water mites (Acari, Hydrachnidia; Arachnida) in freshwater

Sabatino

Smit

Gerecke³

et al. 2007

Hydrobiologia

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Section: Global Distribution Patternsmentioning

confidence: 99%

Global diversity of water mites (Acari, Hydrachnidia; Arachnida) in freshwater

Sabatino

Smit

Gerecke³

et al. 2007

Hydrobiologia

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“…While several studies on the biogeography of the larger islands in the IAA exist (see review by Lohman et al ., ), surprisingly little is known about the timing, causes and directionality of biotic exchange on the smaller islands at the south‐eastern boundaries of Wallacea. Here, ‘Lydekker's Line’ marks a major faunal break (Figure in Rowe et al ., ), which has been crossed repeatedly by groups considered ‘good dispersers’, such as sycophagine wasps (Cruaud et al ., ), atyid crustaceans (Page et al ., ) and murine rodents (Rowe et al ., ), but appears to be almost impenetrable to ‘poor dispersers’, such as terrestrial mammals (Lydekker, ; van den Bergh et al ., ), pachychilid and rissooidean freshwater gastropods (Köhler & Dames, ; Zielske et al ., ) and freshwater fishes (Smith, ).…”

Section: Introductionmentioning

confidence: 99%

Plio‐Pleistocene out‐of‐Australia dispersal in a camaenid land snail

Köhler

Criscione

2013

Journal of Biogeography

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Aim Camaenidae are amongst the most diverse land snail groups in Southeast Asia and Australasia, but their phylogeny and biogeography are poorly understood. The monophyly and biogeographical origin of the Australian species has remained uncertain. Being reported from north‐western Australia as well as from the Lesser Sunda Islands, the genus Rhagada is crucial to our understanding of camaenid biogeography. By resolving the phylogeny of Rhagada, we aim to uncover spatial and temporal patterns of its diversification at the interface between Oriental and Australian biogeographical regions. Location North‐western Australia, Lesser Sunda Islands. Methods We implemented Bayesian and maximum likelihood methods to generate the most complete mitochondrial phylogeny of Rhagada land snails to date. Divergence times of clades were estimated by employing a relaxed molecular clock and two internal calibrations from fossil and tectonic data. Ancestral areas of clades were inferred using character history reconstruction based on parsimony, as implemented in Mesquite. Results Rhagada clustered into eight well‐supported clades that are restricted to certain geographical areas. Species from the Kimberley, Western Australia, formed the earliest branching clades. A single Lesser Sunda clade was sister to a radiation in the Western Australian Pilbara. Molecular age estimates placed the evolutionary origin of Rhagada between the late Miocene and early Pleistocene, and dispersal from Western Australia onto the Lesser Sunda Islands in a period between the mid‐Pliocene and early Pleistocene. Main conclusions The camaenid Rhagada originated in the Kimberley and subsequently expanded its range through the Pilbara and into the Shark Bay area, probably during the late Pliocene and mid‐Pleistocene. From the Kimberley, Rhagada snails colonized the Lesser Sunda Islands probably not before 1.9 Ma following emergence of the youngest islands, which may have acted as ‘stepping stones’. Over‐sea dispersal might have occurred during the mid‐Pleistocene when lowered sea levels facilitated faunal exchange across the region.

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“…Discontinuity between distinct Asian and Australian biotas has motivated a large body of research, resulting in designations of the western (Huxley's line or Wallace's line) and eastern (Lyddeker's line) limits of a region of biotic overlap between Asian and Australian faunas, a region generally referred to as Wallacea (Wallace 1860, Huxley 1868, Lydekker 1896, Weber 1902, Mayr 1944, Holloway and Jardine 1968, Simpson 1977. Efforts to identify the line of faunal balance within Wallacea, west of which greater than 50% of the biota is derived from Asia and east of which greater than 50% of the biota is Australian (Wallace 1876, Scrivenor et al 1943, Mayr 1944, Lincoln 1975, led to detailed analysis of the biogeography of the region, enabling an appreciation of the roles of geology, ecology, and evolution in shaping these biotas.…”

mentioning

confidence: 99%

Biogeographic Breaks in Vanuatu, A Nascent Oceanic Archipelago

2010

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The study of distinct biogeographic demarcations has played a pivotal role in our understanding processes responsible for patterns of species distributions and, importantly, the role of geologic processes in promoting biotic diversification. Biogeographic barriers such as Wallace's line have been shown to be the result of old geologic processes shaping ancient faunal or floral diversification events. Based on distributions of birds, bats, reptiles, plants, and invertebrates we identify a distinct biogeographic disjunction in Vanuatu, a geologically nascent oceanic archipelago. We discuss mechanisms contributing to this concordant pattern across these disparate taxonomic groups in light of geologic history, ocean currents, vegetation, soil, and bioclimatic data, and propose the name Cheesman's line to indicate the faunal and floral discontinuity between the northern and southern islands of Vanuatu.

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A geographical history of mammals

Cited by 76 publications

References 0 publications

Global diversity of water mites (Acari, Hydrachnidia; Arachnida) in freshwater

Global diversity of water mites (Acari, Hydrachnidia; Arachnida) in freshwater

Plio‐Pleistocene out‐of‐Australia dispersal in a camaenid land snail

Biogeographic Breaks in Vanuatu, A Nascent Oceanic Archipelago

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