96 research outputs found

    Bats in the Ghats: Agricultural intensification reduces functional diversity and increases trait filtering in a biodiversity hotspot in India

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    The responses of bats to land-use change have been extensively studied in temperate zones and the neotropics, but little is known from the palaeotropics. Effective conservation in heavily-populated palaeotropical hotspots requires a better understanding of which bats can and cannot survive in human-modified landscapes. We used catching and acoustic transects to examine bat assemblages in the Western Ghats of India, and identify the species most sensitive to agricultural change. We quantified functional diversity and trait filtering of assemblages in forest fragments, tea and coffee plantations, and along rivers in tea plantations with and without forested corridors, compared to protected forests. Functional diversity in forest fragments and shade-grown coffee was similar to that in protected forests, but was far lower in tea plantations. Trait filtering was also strongest in tea plantations. Forested river corridors in tea plantations mitigated much of the loss of functional diversity and the trait filtering seen on rivers in tea plantations without forested corridors. The bats most vulnerable to intensive agriculture were frugivorous, large, had short broad wings, or made constant frequency echolocation calls. The last three features are characteristic of forest animal-eating species that typically take large prey, often by gleaning. Ongoing conservation work to restore forest fragments and retain native trees in coffee plantations should be highly beneficial for bats in this landscape. The maintenance of a mosaic landscape with sufficient patches of forest, shade-grown coffee and riparian corridors will help to maintain landscape wide functional diversity in an area dominated by tea plantations

    Report on a Survey of Mammals of the Sierra Madre Range, Luzon Island, Philippines

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    An inventory of mammals was undertaken at 11 localities along the Sierra Madre range in 2002 to 2005, in areas where few or no data were available previously.  The inventory included lowland and montane forest habitats, at elevations from 300 to 1500 m.  Thirty-eight species of mammals were recorded, including nine new records for the mountain range.  One species, Kerivoula cf. papillosa, had not been recorded previously from the Philippines, and one, Coelops hirsutus, was known previously only from Mindanao and Mindoro Islands.  Two species, in the genera Apomys and Chrotomys, may represent previously unknown species.  We captured Archboldomys musseri only on Mt. Cetaceo, supporting previous evidence that it is endemic only to that mountain.A modified mist-netting technique (V-net) for insectivorous bats was effectively used to capture these species. The new records clearly demonstrate that the mammalian fauna of the Sierra Madre is poorly known.  Surveys of many additional areas are needed in all known habitat types along the Sierra Madre, especially karst, ultrabasic, and mossy forest, to fully document its diversity

    Species boundaries in Philippine montane forest skinks (Genus Sphenomorphus): three new species from the mountains of Luzon and clarification of the status of the poorly known S. beyeri, S. knollmanae, and S. laterimaculatus

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    Recent collections of Sphenomorphus beyeri Taylor 1915 from the type locality (Mt. Banahao, Luzon Isl., Philippines) serve as the basis for a thorough analysis of topotypic variation in external morphology within the species, and allow for detailed comparisons to other taxa. We clarify the taxonomic status of S. beyeri with respect to other, phenotypically similar species and evaluate species boundaries between allopatric populations referred to this taxon. The high elevation (1400–1700 m) population of Sphenomorphus (Brown et al., 1995a) from the Zambales Mountains and Bataan Peninsula of Luzon Island (previously referred by us to S. beyeri) is a new species that we describe here. We also describe two additional new species from the isolated, high elevation (1650–1750 m) forests of the Northern Cordillera and the Sierra Madre of Luzon, specimens of both of which had been previously identified as S. beyeri. All three new species differ from each other and all other Sphenomorphus species by scalation, body size, and coloration and all have non-overlapping distributions, associated with separate, isolated, geological components of Luzon Island. In this paper we also formally redescribe S. beyeri on the basis of a large series of specimens from the type locality (Mt. Banahao, southern Luzon Island) that we have accumulated over the last 15 years. We place S. knollmanae Brown, Ruedas, and Ferner 1995 in synonymy with S. laterimaculatus (Brown and Alcala, 1980) and redescribe the latter species on the basis of the holotype and 20 additional newly collected specimens from six localities on the Bicol Peninsula of Luzon Island and Marinduque Island. These and other data suggest that species boundaries in Philippine Sphenomorphus are poorly understood and that taxonomic diversity is substantially underestimated and in need of comprehensive taxonomic review

    Two new species of shrew-rats (Rhynchomys: Muridae; Rodentia) from Luzon Island, Philippines

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    The murine genus Rhynchomys includes the large-bodied Philippine “shrew-rats,” highly specialized members of the vermivorous clade of Philippine murids. Four species are recognized, all of which are endemic to Luzon Island: R. soricoides from mountains within the Central Cordillera, R. isarogensis from Mt. Isarog on the Bicol Peninsula, R. banahao from Mt. Banahaw in south-central Luzon, and R. tapulao from Mt. Tapulao in the Zambales Mountains. Field surveys in 2006 and 2008 revealed two additional populations of Rhynchomys, one from Mt. Labo (1544 m), a dormant stratovolcano at the base of the Bicol Peninsula, the other from Mt. Mingan (1901 m), the highest peak in the central Sierra Madre of east-central Luzon. Assessment of external and craniodental features of available specimens from throughout Luzon support our description of the populations on Mt. Labo and Mt. Mingan as new species. All species of Rhynchomys are restricted to high-elevation, montane, and mossy forest habitats, separated by intervening lowlands. These discoveries highlight the importance of isolated highland areas in the historical diversification of Southeast Asian murines, and as current centers of endemism

    Two new species of shrew-rats (Rhynchomys: Muridae: Rodentia) from Luzon Island, Philippines

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    The murine genus Rhynchomys includes the large-bodied Philippine shrew-rats, highly specialized members of the vermivorous clade of Philippine murids. Four species are recognized, all of which are endemic to Luzon Island: R. soricoides from mountains within the Central Cordillera, R. isarogensis from Mt. Isarog on the Bicol Peninsula, R. banahao from Mt. Banahaw in south-central Luzon, and R. tapulao from Mt. Tapulao in the Zambales Mountains. Field surveys in 2006 and 2008 revealed two additional populations of Rhynchomys, one from Mt. Labo (1,544 m), a dormant stratovolcano at the base of the Bicol Peninsula, the other from Mt. Mingan (1,901 m), the highest peak in the central Sierra Madre of east-central Luzon. Assessment of external and craniodental features of available specimens from throughout Luzon support our description of the populations on Mt. Labo and Mt. Mingan as new species. All species of Rhynchomys are restricted to high-elevation, montane, and mossy forest habitats, separated by intervening lowlands. These discoveries highlight the importance of isolated highland areas in the historical diversification of Southeast Asian murines, and as current centers of endemism

    Contributions in honor of Guy G. Musser.

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    450 p. : ill. (some col.), maps ; 26 cm. "Issued December 15, 2009." Includes bibliographical references.Contents: They sort out like nuts and bolts : a scientific biography of Guy G. Musser / Michael D. Carleton -- Taxonomy, distribution, and natural history of the genus Heteromys ‪(‬Rodentia: Heteromyidae‪)‬ in central and eastern Venezuela, with the description of a new species from the Cordillera de la Costa / Robert P. Anderson and Eliécer E. Gutiérrez -- Review of the Oryzomys couesi complex ‪(‬Rodentia: Cricetidae: Sigmodontinae‪)‬ in western Mexico / Michael D. Carleton and Joaquin Arroyo-Cabrales -- The antiquity of Rhizomys and independent acquisition of fossorial traits in subterranean muroids / Lawrence J. Flynn -- A new species of Reithrodontomys, subgenus Aporodon ‪(‬Cricetidae: Neotominae‪)‬, from the highlands of Costa Rica, with comments on Costa Rican and Panamanian Reithrodontomys / Alfred L. Gardner and Michael D. Carleton -- Phylogenetic relationships of harpyionycterine megabats ‪(‬Chiroptera: Pteropodidae‪)‬ / Norberto P. Giannini, Francisca Cunha Almeida, and Nancy B. Simmons -- A new genus and species of small ‪"‬tree-mouse‪"‬ ‪(‬Rodentia, Muridae‪)‬ related to the Philippine giant cloud rats / Lawrence R. Heaney, Danilo S. Balete, Eric A. Rickart, M. Josefa Veluz, and Sharon A. Jansa -- Biodiversity and biogeography of the moss-mice of New Guinea : a taxonomic revision of Pseudohydromys ‪(‬Muridae: Murinae‪)‬ / Kristofer M. Helgen and Lauren E. Helgen -- Systematic revision of sub-Saharan African dormice ‪(‬Rodentia: Gliridae‪)‬. Part 2, Description of a new species of Graphiurus from the central Congo Basin, including morphological and ecological niche comparisons with G. crassicaudatus and G. lorraineus / Mary Ellen Holden and Rebecca S. Levine -- Descriptions of new species of Crocidura ‪(‬Soricomorpha: Soricidae‪)‬ from mainland Southeast Asia, with synopses of previously described species and remarks on biogeography / Paulina D. Jenkins, Darrin P. Lunde, and Clive B. Moncrieff -- The six opossums of Félix de Azara : identification, taxonomic history, neotype designations, and nomenclatural recommendations / Robert S. Voss, Philip Myers, François Catzeflis, Ana Paula Carmignotto, and Josefina Barreiro -- Skull and dentition of Willeumys korthi, nov. gen. et sp., a cricetid rodent from the Oligocene ‪(‬Orellan‪)‬ of Wyoming / John H. Wahlert

    The anti-epistemological impulses within O'Brien, Borges, and Gray's metafictional narratives

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    This thesis examines the various metafictional narrative devices in Flann O’Brien’s The Third Policeman, Jorge Luis Borges’ “Pierre Menard, Author of the Quixote” and “The Library of Babel,” and Alasdair Gray’s Lanark. Through a close examination of the texts’ self-conscious references towards their own fictionality—at the sentence level and also at a broader, metaleptic level—I argue that these fictions have the capacity to anti-epistemologically gesture towards the futility of comprehensively attaining and archiving knowledge in its totality, revealing the hubris potentially inherent within such endeavours. Rather than bemoan their inability to comprehensively articulate any body of knowledge or discourse, these metafictions revel in their acknowledgement of their limitations as textual constructs—even if man cannot fully comprehend the infinite, fiction can at least function as a frame through which one could glimpse at its horizons.Master of Art

    Non-Volant Mammals of Mt. hamiguitan, Eastern Mindanao, Philippines

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    Sampling of various forest habitats along an elevational gradient from 200 m to 1128 m on Mt. Hamiguitan resulted in the capture of six species of non-volant small mammals, consisting of one shrew (Soricidae), one gymnure (Erinaceidae) and four rodents (Muridae).  With the exception of an introduced, commensal rat, Rattus exulans, the rest of the species are native. Additionally, information gathered from local people and direct observation indicate the presence on the mountain of one species of tree-shrew (Tupaiidae), one flying lemur (Cynocephalidae), one primate (Cercopithecidae), three squirrels (Sciuridae), two civets (Viverridae), one wild pig (Suidae) and one deer (Cervidae).  Strong association of the endemic species with primary and slightly disturbed forest, and the exclusive association of the pest species with open and severely degraded habitats, were noted. At least two species from the montane forest, based on preliminary examination, are potentially new to science, highlighting the importance of Mt. Hamiguitan as a unique center of endemism in the Philippines.  Protection of representative montane forest habitats of the native species on Mt. Hamiguitan is recommended

    Fiction as art : self-conscious parodies of myth and science in John Banville's the infinities

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    The relationship between fiction and reality is a recurring concern in John Banville's The Infinities (2009). The novel contains both realist and postmodern elements—while The Infinities indulgently glorifies the beauty of the world with its ornate descriptions and stylizations, the novel is also self-conscious of its status as a work of literature. The various self-reflexive moments allow the novel to examine the relationship between language and the world, ultimately foregrounding Banville's aesthetic concern to articulate the complexities of world in his fictions. In a narrative ontology where classical gods and other elements of the fantastic are interwoven with the textures of the mortal world, The Infinities is concerned with reality, but simultaneously subverts pre-established systems of knowledge at the same time. Moreover, through skilfully invoking elements of the classical mode and Shakespearean comedy, Banville crafts a novel that acknowledges its intertextual inheritances, but uses these allusions to ultimately craft his novel as an aesthetic object, a self-contained story world. Even though The Infinities is not conventionally realist in its concerns, the novel articulates the resonances of the real world in a highly stylized fashion; in the process, the novel celebrates mortality and the human experience of living in the world.Bachelor of Art
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