Lacertilia

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Yudha, Donan Satria - One of the best experts on this subject based on the ideXlab platform.

  • Keanekaragaman dan Distribusi Ular (Subordo Serpentes)dan Kadal (Subordo Lacertilia) di Taman Sungai Mudal, Perbukitan Menoreh, Kulon Progo, Daerah Istimewa Yogyakarta
    2017
    Co-Authors: Prasintaningrum Arnita, Faliha Latifathul, Yudha, Donan Satria
    Abstract:

    Taman Sungai Mudal merupakan wilayah dataran tinggi perbukitan Menoreh yang memiliki vegetasi beranekaragam. Selain itu, pada beberapa bagian sungai terdapat kolam-kolam alami. Sejak tahun 2015, wilayah tersebut dialokasikan sebagai tempat wisata. Pembangunan sarana pendukung kawasan wisata yang signifikan dapat memungkinkan timbulnya perubahan populasi reptil dan amfibi di wilayah tersebut. Belum ada penelitian mengenai keanekaragaman ular dan kadal pada tahun-tahun sebelumnya di habitat alaminya sehingga perlu dilakukan inventarisasi data awal. Penelitian dilakukan dengan penggabungan metode transek sepanjang 300 meter serta metode Visual Encounter Survey (VES). Sampling diurnal berlangsung selama kurang lebih 3 jam dan sampling nokturnal 4 jam. Data ditulis dengan indeks diversitas Shannon-Wiener. Terdapat 9 spesies, diantaranya 2 spesies dari subordo Serpentes dan 7 spesies dari subordo Lacertilia. Persebaran keduanya menurut aksis X umumnya berada di kanan badan sungai, sedangkan menurut aksis Z umumnya berada di ketinggian 0-6 meter. Kata kunci: distribusi, keanekaragaman, Lacertilia, Serpentes, Taman Sungai Muda

  • KEANEKARAGAMAN DAN DISTRIBUSI ULAR (Subordo serpentes) DAN KADAL (Subordo Lacertilia) DI TAMAN SUNGAI MUDAL, PERBUKITAN MENOREH, KULON PROGO, DAERAH ISTIMEWA YOGYAKARTA
    2017
    Co-Authors: Prasintaningrum Arnita, Faliha Latifathul, Yudha, Donan Satria
    Abstract:

    Taman Sungai Mudal merupakan wilayah dataran tinggi perbukitan Menoreh yang memiliki vegetasi beranekaragam. Selain itu, pada beberapa bagian sungai terdapat kolam-kolam alami. Sejak tahun 2015, wilayah tersebut dialokasikan sebagai tempat wisata. Pembangunan sarana pendukung kawasan wisata yang signifikan dapat memungkinkan timbulnya perubahan populasi reptil dan amfibi di wilayah tersebut. Belum ada penelitian mengenai keanekaragaman ular dan kadal pada tahun-tahun sebelumnya di habitat alaminya sehingga perlu dilakukan inventarisasi data awal. Penelitian dilakukan dengan penggabungan metode transek sepanjang 300 meter serta metode Visual Encounter Survey (VES). Sampling diurnal berlangsung selama kurang lebih 3 jam dan sampling nokturnal 4 jam. Data ditulis dengan indeks diversitas Shannon-Wiener. Terdapat 9 spesies, diantaranya 2 spesies dari subordo Serpentes dan 7 spesies dari subordo Lacertilia. Persebaran keduanya menurut aksis X umumnya berada di kanan badan sungai, sedangkan menurut aksis Z umumnya berada di ketinggian 0-6 meter. Kata kunci: distribusi, keanekaragaman, Lacertilia, Serpentes, Taman Sungai Muda

  • Keanekaragaman Jenis Kadal dan Ular (Squamata: Reptilia) di Sepanjang Sungai Code, Daerah Istimewa Yogyakarta
    Fakultas Teknobiologi Universitas Atmajaya, 2016
    Co-Authors: Yudha, Donan Satria, Eprilurahman Rury, Jayanto Herdhanu, Wiryawan, Ikhsan Fauzi
    Abstract:

    Kadal dan ular adalah dua kelompok hewan anggota Ordo Squamata, Kelas Reptilia. Dua kelompok hewan reptil ini secara umum hidupnya dekat dengan air, mereka sering sekali ditemukan di dalam dan di sekitar sungai. Beberapa jenis ular dan kadal tersebut sering dimanfaatkan untuk dijadikan hewan peliharaan dan kadang dikonsumsi. Sungai Code merupakan salah satu sungai yang melewati Kota Yogyakarta. Hulu Sungai Code disebut Sungai Boyong dan hilir sungai Code menyatu dengan Sungai Opak di daerah Bantul. Permasalahan yang diangkat dalam penelitian ini adalah bagaimanakah keanekaragaman jenis anggota Ordo Squamata di sepanjang Sungai Boyong-Code wilayah Propinsi D.I. Yogyakarta? Berdasarkan permasalahan yang timbul, maka penelitian ini bertujuan untuk mengetahui keanekaragaman jenis reptil anggota Ordo Squamata penghuni tepian Sungai Code. Pengambilan sampel di sepanjang Sungai Boyong-Code dari hulu hingga hilir menggunakan gabungan beberapa metode, yaitu VES (Visual Encounter Survey), River bank cruising, dan transek. Sampling secara umum dibagi tiga bagian yaitu bagian hulu, tengah dan hilir. Hasil yang diperoleh adalah 8 spesies anggota Subordo Lacertilia (kadal) dan 10 spesies anggota Subordo Serpentes (ular). Berdasarkan hasil tersebut dapat diketahui bahwa Sungai Boyong-Code merupakan habitat yang cocok bagi anggota Ordo Squamata. Kata kunci: keanekaragaman, squamata, Sungai Boyong-Code, DI

  • Keanekaragaman Spesies Amfibi dan Reptil di Kawasan Suaka Margasatwa Sermo, Daerah Istimewa Yogyakarta
    Fakultas MIPA Universitas Negeri Malang, 2015
    Co-Authors: Yudha, Donan Satria, Eprilurahman Rury, Muhtianda, Iman Akbar, Ekarini, Diah Fitri, Ningsih, Oktafia Citra
    Abstract:

    Kawasan Suaka Margasatwa (SM) Sermo merupakan salah satu kawasan lindung yang terdapat di Daerah Istimewa Yogyakarta. Kawasan tersebut merupakan habitat bagi berbagai jenis tumbuhan dan hewan, salah satunya adalah herpetofauna (amfibi dan reptil). Hutan di kawasan SM Sermo terdiri dari hutan sekunder yang umum dimasuki manusia dengan kerapatan vegetasi kurang dari 90%, dengan ketinggian antara 90-250 mdpl dan luas sekitar 181 ha. Sampling dilakukan selama dua hari tanggal 13-14 Januari 2013. Sampling dilakukan pada pagi dan malam hari dengan metode sampling perpaduan antara VES (Visual Encounter Survey), Time Search, dan Road Cruising. Hasil identifikasi, diperoleh total 5 (lima) spesies amfibi dan 13 (tiga belas) spesies reptil. Spesies amfibi yang ditemukan di kawasan SM Sermo adalah Fejervarya limnocharis, Duttaphrynus melanostictus, Ingerophrynus biporcatus, Polypedates leucomystax, dan Kaloula baleata. Reptil yang ditemukan terdiri atas dua Subordo, yaitu Subordo Serpentes (ular), dan Subordo Lacertilia (kadal). Subordo Serpentes yang ditemukan terdiri dari 4 (empat) spesies, yaitu Ahaetulla prasina, Rhabdophis subminiatus, Pareas carinatus, dan Rhamphotyphlops braminus. Subordo Lacertilia yang ditemukan terdiri dari 9 (sembilan) spesies, yaitu Draco volans, Dasia olivacea, Eutropis multifasciata, Eutropis rugifera, Hemidactylus frenatus, Gekko gecko, Cyrtodactylus marmoratus, Lygosoma quadrupes, dan Hemiphyllodactylus typus. Seiring berjalannya waktu, penambahan atau pengurangan jumlah spesies yang terdapat di kawasan SM Sermo dapat terjadi. Dengan demikian, monitoring jenis herpetofauna perlu dilakukan secara rutin untuk memantau keanekaragamannya di kawasan ini. Kata kunci : keanekaragaman, herpetofauna, amfibi, reptil, SM Serm

José Roberto Pujol-luz - One of the best experts on this subject based on the ideXlab platform.

Mark N. Hutchinson - One of the best experts on this subject based on the ideXlab platform.

  • substantial genetic substructuring in southeastern and alpine australia revealed by molecular phylogeography of the egernia whitii Lacertilia scincidae species group
    Molecular Ecology, 2005
    Co-Authors: David G. Chapple, Scott J Keogh, Mark N. Hutchinson
    Abstract:

    Palaeoclimatic events and biogeographical processes since the mid-Tertiary are believed to have strongly influenced the evolution and distribution of the terrestrial vertebrate fauna of southeastern Australia. We examined the phylogeography of the temperate-adapted members of the Egernia whitii species group, a group of skinks that comprise both widespread low- to mid-elevation ( E. whitii ) and montane-restricted species ( Egernia guthega , Egernia montana ), in order to obtain important insights into the influence of past biogeographical processes on the herpetofauna of southeastern Australia. Sequence data were obtained from all six temperate-adapted species within the E. whitii species group, and specifically from across the distributional ranges of E. whitii , E. guthega and E. montana . We targeted a fragment of the ND4 mitochondrial gene (696 bp) and analysed the data using maximum likelihood and Bayesian methods. Our data reveal a deep phylogeographical break in the east Gippsland region of Victoria between ‘northern’ (Queensland, New South Wales, Australian Capital Territory) and ‘southern’ (Victoria, Tasmania, South Australia) populations of E. whitii . This divergence appears to have occurred during the late Miocene–Pliocene, with the Gippsland basin possibly forming a geographical barrier to dispersal. Substantial structuring within both the ‘northern’ and the ‘southern’ clades is consistent with the effects of Plio–Pleistocene glacial-interglacial cycles. Pleistocene glacial cycles also appear to have shaped the phylogeographical patterns observed in the alpine species, E. guthega and E. montana . We used our results to examine the biogeographical process that led to the origin and subsequent diversification of the lowland and alpine herpetofauna of southeastern Australia.

  • Molecular phylogeography and systematics of the arid-zone members of the Egernia whitii (Lacertilia: Scincidae) species group
    Molecular phylogenetics and evolution, 2004
    Co-Authors: David G. Chapple, J. Scott Keogh, Mark N. Hutchinson
    Abstract:

    We assembled a molecular phylogeny for the arid-zone members of the Egernia whitii species group to test Pianka's [Zoogeography and speciation of Australian desert lizards: an ecological perspective, Copeia (1972) 127-145] hypothesis that habitat specificity to the three major arid-zone vegetation communities is the primary cause of lizard speciation within the arid interior of Australia. This hypothesis predicts that species should exhibit phylogeographic structuring concordant with the major arid-zone vegetation types. Sequence data were obtained from four of the five arid-zone members of the E. whitii species group, and from across the ranges of the ecologically generalized E. inornata and E. multiscutata and the more specialized E. striata. We targeted a fragment (696 base pair (bp)) of the mitochondrial genome comprising the 3' half of the ND4 gene. We analysed the data using parsimony, maximum likelihood and Bayesian methods. Our phylogeny confirms the monophyly of the arid-zone members of the species group, although the phylogenetic relationships among species were not fully resolved. Although our topology does not support the recognition of the existing subspecies within E. multiscutata, there is a substantial phylogeographic break between South Australian/Victorian (Clade 1) and Western Australian (Clade 2) populations. We found considerable phylogeographic structure within E. inornata, with six major clades identified. However, these clades were not concordant with the distribution of habitat types in the arid-zone. Phylogeographic structure was also observed in the more specialized E. striata, although our analysis revealed close phylogenetic affinities between the sympatric species E. striata and E. kintorei. Shimodaira-Hasegawa topology tests were equivocal in regard to whether the phylogeographic structure within E. striata was in accordance with Pianka's predictions. Although our data failed to provide strong support for the suggestion that ecological and habitat factors are responsible for the diversification of arid-zone lizards, most E. inornata and E. striata populations had similar habitats, indicating that adaptation to particular habitats may have some role in the speciation of lizards in the Australian arid-zone.

David G. Chapple - One of the best experts on this subject based on the ideXlab platform.

  • substantial genetic substructuring in southeastern and alpine australia revealed by molecular phylogeography of the egernia whitii Lacertilia scincidae species group
    Molecular Ecology, 2005
    Co-Authors: David G. Chapple, Scott J Keogh, Mark N. Hutchinson
    Abstract:

    Palaeoclimatic events and biogeographical processes since the mid-Tertiary are believed to have strongly influenced the evolution and distribution of the terrestrial vertebrate fauna of southeastern Australia. We examined the phylogeography of the temperate-adapted members of the Egernia whitii species group, a group of skinks that comprise both widespread low- to mid-elevation ( E. whitii ) and montane-restricted species ( Egernia guthega , Egernia montana ), in order to obtain important insights into the influence of past biogeographical processes on the herpetofauna of southeastern Australia. Sequence data were obtained from all six temperate-adapted species within the E. whitii species group, and specifically from across the distributional ranges of E. whitii , E. guthega and E. montana . We targeted a fragment of the ND4 mitochondrial gene (696 bp) and analysed the data using maximum likelihood and Bayesian methods. Our data reveal a deep phylogeographical break in the east Gippsland region of Victoria between ‘northern’ (Queensland, New South Wales, Australian Capital Territory) and ‘southern’ (Victoria, Tasmania, South Australia) populations of E. whitii . This divergence appears to have occurred during the late Miocene–Pliocene, with the Gippsland basin possibly forming a geographical barrier to dispersal. Substantial structuring within both the ‘northern’ and the ‘southern’ clades is consistent with the effects of Plio–Pleistocene glacial-interglacial cycles. Pleistocene glacial cycles also appear to have shaped the phylogeographical patterns observed in the alpine species, E. guthega and E. montana . We used our results to examine the biogeographical process that led to the origin and subsequent diversification of the lowland and alpine herpetofauna of southeastern Australia.

  • parallel adaptive radiations in arid and temperate australia molecular phylogeography and systematics of the egernia whitii Lacertilia scincidae species group
    Biological Journal of The Linnean Society, 2004
    Co-Authors: David G. Chapple, Scott J Keogh
    Abstract:

    It has been an enduring belief that increasing aridity combined with Pliocene-Pleistocene glacial cycles resulted in the formation of distinct arid zone and temperate zone faunas within Australia. We assembled a molecular phylogeny for the Egernia whitii species group, an endemic group of skinks that comprises representatives from arid and temperate Australia, in order to test several biogeographical hypotheses regarding the origin of the Australian arid zone fauna. Sequence data were obtained from ten of the 11 species within the species group, plus three other Egernia species and an outgroup (Eulamprus heatwolei). We targeted portions of the ND4 (696 base pairs) and 16S rRNA (500 bp) mitochondrial genes and the b-Fibrinogen 7th Intron nuclear gene (648 bp). The edited alignment comprised 1844 characters, of which 551 (30%) were variable and 382 (69%) were parsimony informative. We analysed the data using maximum likelihood and Bayesian techniques and produced a single optimal tree. Our phylogeny strongly supports two major clades within the species group, corresponding to temperate-adapted rock-dwelling species and arid-adapted obligate burrowing species. However, the phylogenetic affinities of E. pulchra were not resolved. Our topology indicates that the New South Wales population of E. margaretae is actually E. whitii and reveals that E. margaretae margaretae and E. m. personata are distinct species. There also appears to be a major phylogeographical break within E. whitii occurring in eastern Victoria. Although our data supported several previously proposed phylogenetic relationships, Shimodaira‐Hasegawa tests soundly rejected several suggested affinities between certain species. The arid zone members of the E. whitii species group had been suggested to have originated as a result of multiple periods of colonization during the Pleistocene glaciation cycles. However, our genetic data suggest a single origin (presumably from a semiarid E. multiscutata-like ancestor) for the arid zone members of the group prior to the Plio-Pleistocene, probably during the late Miocene to early Pliocene. Our topology displays substantial sequence divergence between species with short internodes and long terminal branches, indicating rapid adaptive radiations within the arid and temperate zones. The presence of temperate-adapted species within more mesic refugia of the arid zone suggests that the necessary adaptations to aridity for colonizing the dry interior of the continent have not evolved since the initial period of adaptive radiation, despite the long evolutionary history of the species group. © 2004 The Linnean Society of London, Biological Journal of the Linnean Society, 2004, 83, 157‐173. ADDITIONAL KEYWORDS: 16S rRNA ‐ b-fibrinogen ‐ biogeography ‐ mtDNA ‐ ND4 ‐ nuclear gene ‐ phylogeny ‐ skink ‐ taxonomy.

  • Molecular phylogeography and systematics of the arid-zone members of the Egernia whitii (Lacertilia: Scincidae) species group
    Molecular phylogenetics and evolution, 2004
    Co-Authors: David G. Chapple, J. Scott Keogh, Mark N. Hutchinson
    Abstract:

    We assembled a molecular phylogeny for the arid-zone members of the Egernia whitii species group to test Pianka's [Zoogeography and speciation of Australian desert lizards: an ecological perspective, Copeia (1972) 127-145] hypothesis that habitat specificity to the three major arid-zone vegetation communities is the primary cause of lizard speciation within the arid interior of Australia. This hypothesis predicts that species should exhibit phylogeographic structuring concordant with the major arid-zone vegetation types. Sequence data were obtained from four of the five arid-zone members of the E. whitii species group, and from across the ranges of the ecologically generalized E. inornata and E. multiscutata and the more specialized E. striata. We targeted a fragment (696 base pair (bp)) of the mitochondrial genome comprising the 3' half of the ND4 gene. We analysed the data using parsimony, maximum likelihood and Bayesian methods. Our phylogeny confirms the monophyly of the arid-zone members of the species group, although the phylogenetic relationships among species were not fully resolved. Although our topology does not support the recognition of the existing subspecies within E. multiscutata, there is a substantial phylogeographic break between South Australian/Victorian (Clade 1) and Western Australian (Clade 2) populations. We found considerable phylogeographic structure within E. inornata, with six major clades identified. However, these clades were not concordant with the distribution of habitat types in the arid-zone. Phylogeographic structure was also observed in the more specialized E. striata, although our analysis revealed close phylogenetic affinities between the sympatric species E. striata and E. kintorei. Shimodaira-Hasegawa topology tests were equivocal in regard to whether the phylogeographic structure within E. striata was in accordance with Pianka's predictions. Although our data failed to provide strong support for the suggestion that ecological and habitat factors are responsible for the diversification of arid-zone lizards, most E. inornata and E. striata populations had similar habitats, indicating that adaptation to particular habitats may have some role in the speciation of lizards in the Australian arid-zone.

Roger Maia Dias Ledo - One of the best experts on this subject based on the ideXlab platform.