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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 418 (2002), S. 143-143 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] For animals who are unable to take bites out of their food, the size of the food item that can be consumed is constrained by the maximal size of the mouth opening (gape) — snakes are an example of gape-limited predators and they usually swallow their prey whole. Here we describe unique ...
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillian Magazines Ltd.
    Nature 424 (2003), S. 420-426 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The looming mass extinction of biodiversity in the humid tropics is a major concern for the future, yet most reports of extinctions in these regions are anecdotal or conjectural, with a scarcity of robust, broad-based empirical data. Here we report on local extinctions among a wide range of ...
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Hydrobiologia 377 (1998), S. 123-131 
    ISSN: 1573-5117
    Keywords: Parathelphusa ; freshwater crab ; Borneo
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Three new species of the genus Parathelphusa (Brachyura: Parathelphusidae) are described from Borneo: Parathelphusa tera from Bengalun Basin, East Kalimantan; P. torta from Barito Basin, South Kalimantan, and P. undulata from Kayan Basin, East Kalimantan. Descriptions, figures and comparisons with congeners in the region are provided.
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  • 4
    ISSN: 1573-5117
    Keywords: Crustacea ; Potamidae ; systematics ; new genus ; new species ; Thailand
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A new genus, Tomaculamon, is set up for two newspecies of potamid river crabs. Tomaculamonstenixys, new species, and T. pygmaeus, newspecies, are both from northwestern Thailand. The newgenus is closest to Potamon Savigny, 1816, butis immediately distinguished by distinct gonopodalcharacters.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Hydrobiologia 285 (1994), S. 59-74 
    ISSN: 1573-5117
    Keywords: Malaysian Channidae ; systematics ; ecology ; identification key
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Seven species of snakeheads (Channidae) are known from Peninsular Malaysia and Singapore, viz. Channa bankanensis, C. gachua, C. lucius, C. marulioides, C. melasoma, C. micropeltes and C. striata. Up-to-date distribution maps of each species are presented, including new records. Their systematics is reviewed and partially revised. The taxonomic status of C. marulioides and C. melanoptera is clarified. Specimens from Peninsular Malaysia identified as C. melanoptera sensu Weber & de Beaufort, 1922, proved to be the adult form of C. marulioides s.str. The real C. melanoptera appears to be restricted to Borneo and possibly Sumatra. The life history of a blackwater species C. bankanensis is also documented, with regards to the morphological and colour-pattern changes associated with growth. An updated key to the seven species based on morphometric measurements and meristic counts is presented.
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  • 6
    ISSN: 1573-5117
    Keywords: Hymenosomatidae ; Southeast Asia ; ecology ; distribution ; biology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The false spider crabs of the family Hymenosomatidae are one of the most poorly known group of brachyuran crabs in Southeast Asia. This is largely attributed to their small size and cryptic behaviour. Despite the many studies of decapods in Southeast Asia, only eleven species of hymenosomatids are known. Of these, two genera and six species were only described in the last two years. From Singapore the largest number of species (five) has been reported probably because it has been the best explored, while from Thailand three species and Peninsular Malaysia two species are known. There are no published records of hymenosomatids from Borneo or Java. The hymenosomatid fauna is perhaps best known in Australia and New Zealand. It is anticipated that when proper collections are made and studies implemented, the Southeast Asian hymenosomatid fauna will prove to be more diverse than what has been reported. The ecology of the Southeast Asian species is reviewed, especially in the view that two species are completely freshwater, one of which is a troglobite. Most species are littoral or sublittoral in habit and very sensitive to human activities (e.g. pollution).
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Hydrobiologia 285 (1994), S. 75-84 
    ISSN: 1573-5117
    Keywords: mangrove crabs ; Peninsular Malaysia ; Singapore ; checklist
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The mangrove brachyuran fauna of Singapore and Malaysia is generally regarded as well studied. This is not the case. Over a hundred brachyuran species are now known from mangroves in Peninsular and East Malaysia, a substantial part of the known fauna in these waters. In Singapore, for example, of the approximately 350 brachyurans known, 76 (i.e. ca 22%) are mangal species. The systematics of several groups remain very unsatisfactory. The taxonomy of the Sesarminae, the largest subfamily of the Grapsidae and the dominant group in most mangroves, is still very unstable, with the identities of many ecologically important genera and species still unclear. A revision is still unavailable. Until recently, representatives of the families Hymenosomatidae and Leucosiidae were unknown from mangroves. Detailed collections and studies have resulted in the discovery of new genera and species from areas as purportedly well explored as Singapore. The Sarawak mangrove brachyuran crab fauna is based almost entirely on one paper written 40 years ago whilst that of Sabah is almost unknown. Although the state of mangal brachyuran systematics in Malaysia and Singapore is still in an exploratory phase, the mangroves in these two countries are relatively well-known compared to those of the surrounding regions. The present annotated checklist of mangal brachyuran species is intended to guide future systematic work in these countries, as well as to assist ecologists and other mangrove biologists. This is especially in view of the important role of crabs in mangroves.
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  • 8
    ISSN: 1573-5117
    Keywords: Pomacentridae ; Malaysia ; Singapore ; taxonomy ; ecology ; conservation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Damselfishes (Pomacentridae) are among the most common of reef fishes in tropical seas, comprising 320 species in all, with 268 species alone in the Indo-West Pacific regions. 15 genera (Abudefduf, Amblyglyphidodon, Amphiprion, Chelioprion, Chromis, Chrysiptera, Dascyllus, Pristotis, Dischistodus, Hemiglyphidodon, Neoglyphidodon, Neopomacentrus, Plectroglyphidodon, Pomacentrus, Stegastes) and at least 39 species inhabit the waters of Peninsular Malaysia and Singapore. They are important ecologically because many species are extremely abundant in reefs, and also economically, as several are collected in large numbers for the lucrative aquarium trade. This demand has led to some fishermen using destructive methods in obtaining the fishes, to the point that original standing populations may not be recoverable. This threat poses a need for conservation of the reefs. The present study based primarily on fishes collected from the waters of Singapore and specimens from the Zoological Reference Collection at the National University of Singapore, will serve the dual purpose of establishing a current species list for Malaysia and Singapore, and to update and clarify the local taxonomy of the group. An annotated list (with localities) is provided of the known or reported species to aid studies on reefs.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1573-5117
    Keywords: blackwater fish ; Peninsular Malaysia ; stenotype ; rare taxa ; ecology ; conservation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract One of the most extreme freshwater habitats in Peninsular Malaysia is the peat swamp forest, with dark-coloured and highly acidic waters. Surprisingly, little is known about blackwater fishes in Peninsular Malaysia. Until 1968, only 26 fish species were known from blackwaters throughout Peninsular Malaysia, of which only one can be regarded as stenotopic. A recent intensive survey of part of the North Selangor peat swamp forest yielded 47 species, of which 14 are probably stenotopic taxa. These include four undescribed species and several new records for western Peninsular Malaysia. These discoveries are significant in that they include the family Chaudhuriidae which until 1985, was not reported from Sundaic Southeast Asia, and the rare genus Encheloclarias which had not been encountered for over 50 years. The rapid rate of destruction of the peat swamp forest owing to development, forestry and agricultural activities must be halted or slowed significantly to enable the proper zoological surveys and studies to be conducted. Conservation plans and environmental impact assessments based on inadequate sampling and knowledge of species present is acutely dangerous. There are no longer substantial undisturbed blackwater peat swamp forests left in most of Peninsular Malaysia. Conservation of the remaining blackwater biotopes is critically important if extinction of many species, here regarded as economically valuable renewable resources, is to be prevented.
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  • 10
    Publication Date: 2007-12-18
    Print ISSN: 0018-8158
    Electronic ISSN: 1573-5117
    Topics: Biology
    Published by Springer
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