Academic literature on the topic 'Annamite Range'

Abstract The Annamite striped rabbit Nesolagus timminsi is a little-known and Endangered lagomorph endemic to the Annamites ecoregion of Vietnam and Laos. The species’ known distribution extends from the northern to central Annamites. Here, we report the first records of the species from the southern Annamites. We recorded camera-trap photographs of Annamite striped rabbit in Bidoup – Nui Ba National Park, located in Lam Dong province, Vietnam. The photographs represent the first records of the species from the southern Annamites, and a significant southern range extension. We discuss the implications of this finding for Annamite striped rabbit conservation.

Suzuki, Yuya, Nakano, Takafumi, Nguyen, Son Truong, Nguyen, Anh Thi Thu, Morino, Hiroshi, Tomikawa, Ko (2017): A new landhopper genus and species (Crustacea: Amphipoda: Talitridae) from Annamite Range, Vietnam. Raffles Bulletin of Zoology 65: 304-315, DOI: 10.5281/zenodo.5356537

Ziegler, Thomas, Quyet, Le Khac (2005): A new species of reed snake, Calamaria (Squamata: Colubridae), from the Central Truong Son (Annamite mountain range), Vietnam. Zootaxa 1042: 27-38, DOI: 10.5281/zenodo.169839

Jennifer Egert, Vinh Quang Luu, Truong Quang Nguyen, Minh Duc Le, Michael Bonkowski, Thomas Ziegler (2017): First record of Gracixalus quyeti (Amphibia: Anura: Rhacophoridae) from Laos: molecular consistency versus morphological divergence between populations on western and eastern side of the Annamite Range. Revue suisse de Zoologie 124 (1): 47-51, DOI: 10.5281/zenodo.322663

Vu Quang Nature Reserve, Vietnam, was brought to the attention of the world scientific community following the discovery of two previously undescribed large mammal species in the early 1990s. In light of the identification of other sites of high biodiversity value in the Annamite mountains of Vietnam and Laos, the relative importance for biodiversity conservation of Vu Quang needs to be reassessed. In this paper we evaluate the importance of the site for bird conservation, in relation to 13 other protected areas in the Annamese Lowlands Endemic Bird Area (EBA) and present species lists for all 14 sites. Whilst Vu Quang supports one of the highest numbers of recorded bird species of all 14 protected areas, a complementarity analysis revealed that Vu Quang does not fall within the critical subset of sites necessary to conserve 95% of the avifaunal diversity of the EBA. The site should not, therefore, be considered a regional bird conservation priority. Furthermore, of the nine restricted-range species known from the Annamese Lowlands EBA, only three are known from Vu Quang, which is not, therefore, a priority site for the conservation of endemic bird species. We also evaluate the conservation status of the avifauna of Vu Quang, and propose potential conservation measures to enhance its importance for bird conservation.

Agriocnemis lepida sp. nov. is described and figured (holotype ♂: 20-ii-2003, Lao PDR, Khammouan Province, 2.5 km WNW Ban Tathot, Tham Kamouk, 17.6316°N, 105.1250°E, 200 m a.s.l., P. Jäger leg.; deposited at the Forschungsinstitut und Naturmuseum Senckenberg, Frankfurt am Main, Germany). Additionally, illustrations of the male append¬ages and the posterior lobe of the prothorax of A. clauseni, A. minima, and A. nana as well as photographs and a Selys watercolour of the female holotype of A. carmelita are provided. Agriocnemis carmelita is shortly discussed with references to the genus Mortonagrion.

The large-antlered, or giant, muntjac Megamuntiacus vuquangensis wasdescribed from Vietnam in 1994 and found concurrently in the Annamite Mountains and nearby hill ranges of central and southern Laos. The northerly and southerly range limits are still unknown. It may occupy a wide range of habitats and is found sympatrically with the common muntjac Muntiacus muntjak. Another muntjac species, the taxonomic affinity of which is as yet undetermined, was recently discovered to occur within its range. The large-antlered muntjac is probably not threatened with extinction in the near future, but in view of its restricted range and threats from habitat degradation and hunting, it should be classified as Vulnerable in the Red Data Book. Its future in Laos is largely dependent on the recently created protected-areas system to maintain large tracts of habitat and reduce hunting pressure.

The genus Dedalopterus Sabatinelli & Pontuale, 1998 from Laos and Vietnam is reviewed: three species are present of which Dedalopterus lexuanhuei Pham, Ahrens & Sabatinelli, new species from Central Vietnam (Ngoc Linh Mts., Annamite Range) is here described. Dedalopterus malyszi Bunalski, 2001 is present in North Vietnam (Lao Cai, Hoang Lien Son Range), and Dedalopterus pulchellus Sabatinelli & Pontuale, 1998 (= D. bezdekorum Zídek & Krajčík, 2007, new synonymy) is known from Northeast Laos (Mt. Xiangkhouang and Mt. Phou Pan). Additional records, an updated checklist, and an identification key of the genus Dedalopterus are provided. All species treated are abundantly illustrated.

A new species of Calamaria is described from the Truong Son (Annamite mountain range) of Quang Binh province in central Vietnam. The new species is characterized by its dark, iridescent body with four yellowish to beige zigzag shaped bands, light dorsal markings on base and tip of tail, light venter, modified maxillary teeth, large size (455 mm total length), tail tapering gradually to a point, reduction to five dorsal scale rows on tail, 198 ventral scales, 21 divided subcaudals, four supralabials (second and third entering orbit), five infralabials, mental not touching anterior chin shields, three gular scales in midline between posterior chin shields and first ventral, rostral being wider than high, paraparietal being surrounded by six shields and scales, and by the absence of a preocular scale. The new taxon is known only from a single adult female specimen that was collected in a primary limestone forest cave. It is the fifth species of Calamaria recorded from Vietnam.

The Annamese silvered langur (Trachypithecus margarita) is a colobine species recently recognized as a separate species and considered Endangered by the IUCN. It lives in Indochina, east of the Mekong River. There are some studies on its morphology, distribution and diet. Information on the species’ ranging, social behavior and organization, habitat use and reproduction is scarce. The effects of human disturbance on langurs are unknown, a reason for concern given the current biodiversity crisis in the region. Information on the habitats where the species is found in the wild is scarce, with some sources conflicting. I aim to expand our current knowledge on the socioecology of T. margarita and the effects of human activities on it. Research was done at Veun Sai Siem Pang Conservation Area, Ratanakiri Province, Cambodia, from April 2013 until May 2014. An unhabituated group was followed for five days every week. Group size was estimated and their geographical position was marked every 30 minutes until the end of the day or the group was lost. Canopy layer and forest type were noted every time an individual was seen. When eating, plant part and species were identified to species level. Eight botanical transects of 5x200 meters were set up, classified by forest type and anthropic disturbance. Plants with a DBH of 12 cm or over were identified to species level. Biodiversity and Evenness indices were calculated for the habitat and each transect and compared. Langur visits to a mineral lick were recorded using camera traps. Group size, sex and age classes were counted, and morphological characters analysed for individual variability. Chainsaw numbers, length of logging in hours and distance from logging spots to the group were calculated daily. Mixed evergreen forest is more heterogeneous than mixed deciduous forest and presents more canopy layers and smaller stems. Logging tracks affect habitat structure but not diversity, while intensive logging strongly affects structure and diversity. Vertebrate populations at VSSPCA are resilient to small scale logging. T. margarita at VSSPCA are morphologically uniform. Group size is at least 61 individuals and the social organization is multi-male multi-female. Langurs associate with other sympatric species of primates at the site, especially M. leonina and P. nemaeus. Langurs fed mainly on seeds, (69% of their diet), but also ate other fruit parts; leaf consumption was low. Focus on plant parts, food species and families varied between ix seasons. Dipterocarps were highly consumed, but Willughbeia and oak trees were highly selected. Home range size reached 256 ha, being larger in the dry season than in the rainy season, likely because of different food availability. The high canopy was most frequently used, although juveniles used the mid canopy more frequently. Langurs preferred mixed deciduous forest during the rainy season but avoided it during the dry season, probably for a lack of canopy to hide and feed. Langurs were strongly affected by logging, moving higher in the canopy as intensity increased, and abandoned areas of their home range where it was most destructive. While T. margarita tolerates human disturbance, loggers target key tree groups and law enforcement must be maintained.

Abstract Beginning on 18 December 1974, a week before the attack on Don Luan, the North Vietnamese Politburo and Military Committee met once more to determine the operational concepts governing its 1975 campaign. The NVA General Staff remained cautious, tentatively selecting a series of attacks which would expand its “ logistic corridor” east of the Annamites. The staff selected as its main effort a three-division attack on Due Lop, a minor post on Highway 14 in the Southern Highlands. Although the Highlands area was not his responsibility, the irrepressible Gen. Tran Van Tra gave the General Staff the benefit of his strategic acumen anyway. He told them that Due Lop was unimportant, and that if the General Staff planned to use three divisions, that it should use them against something significant, and suggested Ban Me Thuot. And Ban Me Thuot was significant. It sat astride Highway 14, the main northsouth road inland, and Highway 21, which connected Ban Me Thuot to the sea at Nha Trang and Phan Rang. It was a large town, the capital of Darlac province, and the site of an RVNAF air base.