t s liew (15 risultati)

Condizione: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,800grams, ISBN:9781906055707.

Sabah, a Malaysian state at the north-eastern tip of Borneo, is situated in one of the Earth's biodiversity hotspots yet its freshwater gastropod diversity remains poorly known. An annotated checklist of the freshwater gastropods is presented, based on specimens deposited in the BORNEENSIS collection of the Institute for Tropical Biology and Conservation at Universiti Malaysia Sabah, Malaysia. A KMZ file is also provided, which acts as a repository of digital images and complete collection data of all examined material, so that it can be shared and adapted to facilitate future research. 19 pp., 3 figs, gr. 8.

Soft cover. Condizione: Very Good. 82 pp., illustrations, bibliography. Contents: Forest plantation in Sabah, Malaysia; Tolerance of Araucaria cunninghamii transplants to sixteen herbicides; Development of microcomputer programs for use in forestry in Papua New Guinea; The durability of dry wood; The other products from the forest; Phenology and silviculture of New Guinea kauri pine (Agathis sp.); Notes on the productivity of logging operations in Papua New Guinea; A human scale for forestry development; Line planting with striplings of Cedrela odorata; Research notes on Neolamprima adolphine Gestro (Lucanidae) 0.0.

Condizione: New.

Condizione: New. Brand new! Please provide a physical shipping address.

Condizione: New.

Condizione: New. pp. 676.

Condizione: As New. Unread book in perfect condition.

Hardcover. Condizione: Like New. Like New. book.

Condizione: As New. Unread book in perfect condition.

Sabah, situated in one of the world's biodiversity hotspots, has the largest number of islands in Malaysia with more than 500 of various sizes and degrees of isolation. However, information on the islands' biodiversity is limited. This study provides an up-to-date checklist of land snail species found on 24 west coast islands in Sabah. A total of 67 species (nearly 20% of the total number of land snail species in the state) representing 37 genera and 19 families is enumerated based on systematic field surveys of 133 sampling plots, BORNEENSIS database records and species checklists published between 2000 and 2016. The number of species on the islands ranges from four to 29. Labuan Island has the highest number of species (29), followed by Tiga Island (25), Mantanani Besar Island (24) and Gaya Island (23). However, the populations of some land snail species may have declined as several previously recorded species on the islands were not found in a recent systematic field sampling. This checklist is provided as a baseline inventory for future island land snail studies and to better inform biodiversity conservation plans of marine parks and other islands on the Sabah west coast. 56 pp., 22 figs, gr. 8.

Limestone hills are now gaining global conservation attention as hotspots for short-range endemic species. Levels of land snail endemism can be high at limestone hills, especially at hill clusters that are geographically isolated. In the State of Perak, Peninsular Malaysia, limestone hills have been opportunistically surveyed for land snails in the past, but the majority have yet to be surveyed. To address this knowledge gap, we systematically surveyed the terrestrial malacofauna of 12 limestone hills that, based on our opinion, are a representation of the limestone land snail assemblages within the State. Our inventory yielded high sampling completeness (>85%). We found 122 species of land snails, of which 34 species were unique to one of the surveyed hills. We identified 30 species that are potentially new to science. The number of land snail species recorded at each hill ranged between 39 and 63 species. Four of the sampled limestone hills namely, Prk 01 G. Tempurung, Prk 55 G. Pondok, Prk 47 Kanthan, and Prk 64 Bt Kepala Gajah, have high levels of species richness and unique species, representing 91% of the total species recorded in this study. We identified two clusters of limestone hills in central Perak with distinct differences in land snail species composition a northern hill cluster on elevated granite bedrock and southern hill cluster in a low-lying valley surrounded by alluvial soils. As limestone hills continue to be quarried to meet the cement demand, the four identified limestone hills, along with other hills from the two clusters, warrant urgent conservation attention in order to maintain high species diversity within Perak's terrestrial malacofauna. 94 pp., 31 figs, br. gr. 8.

We present reviews of the Sabah (Malaysia, on the island of Borneo) species of the following problematical genera of land snails (Mollusca, Gastropoda): Acmella and Anaglyphula (Caenogastropoda: Assimineidae); Ditropopsis (Caenogastropoda: Cyclophoridae); Microcystina (Pulmonata: Ariophantidae); Philalanka and Thysanota (Pulmonata: Endodontidae); Kaliella, Rahula, (Pulmonata: Euconulidae); Trochomorpha and Geotrochus (Pulmonata: Trochomorphidae). Next to this, we describe new species in previously revised genera, such as Diplommatina (Diplommatinidae); Georissa (Hydrocenidae); as well as some new species of genera not revised previously, such as Japonia (Cyclophoridae); Durgella and Dyakia (Ariophantidae); Amphidromus, and Trachia (Camaenidae); Paralaoma (Punctidae); Curvella (Subulinidae). All descriptions are based on the morphology of the shells. We distinguish the following 48 new species: Acmella cyrtoglyphe, A. umbilicata, A. ovoidea, A. nana, A. subcancellata, A. striata, and Anaglyphula sauroderma (Assimineidae); Ditropopsis davisoni, D. trachychilus, D. constricta, D. tyloacron, D. cincta, and Japonia anceps (Cyclophoridae); Diplommatina bidentata and D. tylocheilos (Diplommatinidae); Georissa leucococca and G. nephrostoma (Hydrocenidae); Durgella densestriata, Dyakia chlorosoma, Microcystina microrhynchus, M. callifera, M. striatula, M. planiuscula, and M. physotrochus (Ariophantidae); Amphidromus psephos and Trachia serpentinitica (Camaenidae); Philalanka tambunanensis, P. obscura, P. anomphala, P. rugulosa, and P. malimgunung (Endodontidae); Kaliella eurytrochus, K. sublaxa, K. phacomorpha, K. punctata, K. microsoma, Rahula delopleura, (Euconulidae); Paralaoma angusta (Punctidae); Curvella hadrotes (Subulinidae); Trochomorpha trachus, T. haptoderma, T. thelecoryphe, Geotrochus oedobasis, G. spilokeiria, G. scolops, G. kitteli, G. subscalaris, and G. meristorhachis (Trochomorphidae). 139 pp., 92 figs, br. gr. 8.

The Tropical micro-landsnail of the genus Plectostoma exhibits a greater diversity in shell forms, largely due to the last whorl, which, in some species is coiled irregularly. The genus counts 79 species and occurs in Vietnam, Thailand, Peninsular Malaysia, Sumatra, and Borneo. Plectostoma can only be found in limestone outcrops, where the rock face is its major habitat. This work revises non-Borneo Plectostoma species, which are more diverse in their shell form than Bornean Plectostoma. As a result, 10 new Plectostoma species are described together with the existing 21 species, based on the redefined shell characters and genetic data. In addition, all the data of 31 species, namely, 62 references, 214 collections, 290 pictures, and 155 3D models, were simultaneously tagged and linked to each other. All the synthesised, semantic-tagged, and linked taxonomic information is made freely and publicly available online. New taxa: Plecostoma davisoni n. sp., Plecostoma dindingensis n. sp., Plecostoma ikanensis n. sp., Plecostoma tohchinyawi n. sp., Plecostoma kubuensis n. sp., Plecostoma mengaburensis n. sp., Plecostoma relauensis n. sp., Plecostoma whitteni n. sp. Sofia, Moscow. Pensoft. 107 pp., 49 figs, br. gr. 8 [16.3 x 23.7 cm].