scholarly journals Occurrence data of terrestrial vertebrates of Son Tra Peninsula, Da Nang City, Vietnam

2019 ◽  
Vol 7 ◽  
Author(s):  
Bang Tran ◽  
Duy Le ◽  
Huy Hoang ◽  
Duc Hoang

The forest of Son Tra Peninsula was designated as a nature reserve in 1977 and serves as a green lung for Da Nang City. Due to the economic development scheme of Da Nang City, the forest of the peninsula has been disturbed by human activities and by invasive plant species. Moreover, the management board of the nature reserve lacked sufficient data of the species distribution of its biodiversity for developing future management and conservation plans. To provide and enhance knowledge for the distribution of wildlife species in Son Tra Peninsula, we conducted field surveys over two years to collect data on species richness and distribution and then build a biodiversity database for the protected area. The project collected the occurrence data of 145 species of terrestrial vertebrates, accounting for 51.6% of vertebrate species known from the peninsula with total of 900 observations. In addition, distribution data of six threatened species were recorded on the peninsula.

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 997
Author(s):  
Hee-Bok Park ◽  
Sungwon Hong

The long-tailed goral (Naemorhedus caudatus) is a critically endangered herbivore in South Korea. Despite government efforts to recover the population through reintroduction programs, the animal remains vulnerable to heavy snowfall. From March to June 2010, 24 animals were found dead due to heavy snowfall in the Wangpi Stream basin. In this study, we hypothesized that gorals that died due to snowfall are low-status individuals that lived in the sub-optimal or non-suitable areas. Using the occurrence data from extensive field surveys from 2008 to 2010 in the Wangpi Stream and the carcass location data, we (1) defined the goral habitat characteristics and (2) compared the habitat characteristics between dead and living gorals using ensemble species distribution modeling. The results suggested that the sites where dead gorals were found were highly related to typical goral habitats. These results implied that the optimal goral habitats could become uninhabitable following heavy snowfall. Most of the dead animals were pregnant females or were young, implying that they could not escape their primary habitats due to lower mobility. Thus, when there is a climate catastrophe, the optimal goral habitats should be considered for rescue and artificial feeding.


2015 ◽  
Vol 46 (4) ◽  
pp. 159-166 ◽  
Author(s):  
J. Pěknicová ◽  
D. Petrus ◽  
K. Berchová-Bímová

AbstractThe distribution of invasive plants depends on several environmental factors, e.g. on the distance from the vector of spreading, invaded community composition, land-use, etc. The species distribution models, a research tool for invasive plants spread prediction, involve the combination of environmental factors, occurrence data, and statistical approach. For the construction of the presented distribution model, the occurrence data on invasive plants (Solidagosp.,Fallopiasp.,Robinia pseudoaccacia,andHeracleum mantegazzianum) and Natura 2000 habitat types from the Protected Landscape Area Kokořínsko have been intersected in ArcGIS and statistically analyzed. The data analysis was focused on (1) verification of the accuracy of the Natura 2000 habitat map layer, and the accordance with the habitats occupied by invasive species and (2) identification of a suitable scale of intersection between the habitat and species distribution. Data suitability was evaluated for the construction of the model on local scale. Based on the data, the invaded habitat types were described and the optimal scale grid was evaluated. The results show the suitability of Natura 2000 habitat types for modelling, however more input data (e.g. on soil types, elevation) are needed.


2021 ◽  
Vol 969 (3) ◽  
pp. 19-27
Author(s):  
M.Yu. Grischchenko ◽  
V.V. Khlyustova ◽  
E.A. Izyumnikova ◽  
I.V. Kalimova

The paper deals with compilation of a large-scale soil map for the site of “Kurilsky” nature reserve, located in the southern part of Kunashir island, the Greater Kuril ridge. The islands make a remote and poorly studied area, and the soil is one of the least examined components of the local geosystems. The zonal soils here are cambisoil, but the variety of soil-forming processes characteristic of the island provides a comparative diversity of the cover. Modern volcanism affects the formation process significantly, although its role is sometimes overestimated. The study is based on field surveys performed in the considered area in 2014–2019, during which descriptions of soils were compiled according to standard methods. The map was compiled using a multispectral image of high spatial resolution from the Pleiades-1B satellite and topographic maps. Thus, the abundance of soils from different levels and divisions does not make a significant effect on the general heterogeneity of the territory soil cover due to the small area of intrazonal soils.


2002 ◽  
Vol 8 (1) ◽  
pp. 62 ◽  
Author(s):  
Bryan L. Stuart ◽  
Benjamin Hayes ◽  
Bui Huu Manh ◽  
Steven G. Platt

Both species of native crocodile, Siamese Crocodile Crocodylus siamensis and Estuarine Crocodile C. porosus, are seriously threatened in the wild in Vietnam. The swamp forest of the U Minh region in southern Vietnam was recently suggested to harbor the last remaining wild Estuarine Crocodiles in the country. We investigated the status of crocodiles in the U Minh Thuong Nature Reserve by conducting field surveys and interviewing local people. Field surveys found no signs of living wild crocodiles, and interview results strongly suggested that wild crocodiles have not occurred at U Minh Thuong Nature Reserve for perhaps as long as 30 years.


2004 ◽  
Vol 82 (11) ◽  
pp. 1704-1712 ◽  
Author(s):  
G F Ficetola ◽  
E Padoa-Schioppa ◽  
A Monti ◽  
R Massa ◽  
F De Bernardi ◽  
...  

The European pond turtle, Emys orbicularis (L., 1758), is threatened throughout its distribution, prompting management of habitats and populations for conservation. Quantitative data on habitat requirements for this species are needed to better evaluate which areas are the most suitable, or what actions can improve habitat suitability. We studied relationships between the distribution and abundance of E. orbicularis and the environment by analysing water quality and features of 39 wetland and upland habitats in the Po River delta of northern Italy; visual transects and point counts were used to determine turtle presence and relative abundance. Emys orbicularis occurs more frequently and abundantly in permanent wetlands surrounded by woodlands, and its presence does not appear to be related to water eutrophication. Woodlands strongly influence adjacent wetland features and may be important for turtles' terrestrial activities such as nesting and dispersal. Habitat management and conservation plans for E. orbicularis should include protection of extensive terrestrial woodland habitat containing diverse wetland systems, to support turtle survival at different life-history stages. The requirements for wetlands and natural terrestrial habitat are difficult to meet in the currently human-dominated European lowlands; nevertheless, conservation plans for this species should take a broad-scale approach.


2015 ◽  
Vol 14 (1) ◽  
pp. 100-103 ◽  
Author(s):  
Jay Pak-Ho Wan ◽  
Bosco Pui-Lok Chan ◽  
Chengle Liao ◽  
Hongxu Mi ◽  
Michael Lau ◽  
...  

Check List ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 637-642
Author(s):  
Carlos Eduardo Costa-Campos ◽  
Davi Lee Bang ◽  
Vinícius Antônio Martins Barbosa de Figueiredo ◽  
Rodrigo Tavares-Pinheiro ◽  
Antoine Fouquet

Based on field surveys undertaken in two conservation areas, we report new distribution data of Hyalinobatrachium taylori (Goin, 1968) and H. tricolor Castroviejo-Fisher, Vilà, Ayarzagüena, Blanc & Ernst, 2011 from the state of Amapá, northern Brazil. We provide acoustic data from these new populations. These are the first records of H. taylori and H. tricolor from Amapá, extending the geographic distributions of these species by 317 km from Mitaraka and 320 km from Saut Grand Machicou, both in French Guiana, respectively.


Herpetozoa ◽  
2021 ◽  
Vol 34 ◽  
pp. 97-114
Author(s):  
Oleksandra Oskyrko ◽  
Daniel Jablonski

This study provides distribution data for 12 species of reptiles in the Southern Bug eco-corridor located within the steppe zone, Mykolaiv Oblast (province), Ukraine. We compiled 935 records from published literature (324), from public databases (68), and from 12 field surveys we made in 2016–2020 (543). All records were mapped on to a grid of 10×10 km, representing the 294 cells of the studied area. We present new distributional data for Podarcis tauricus. For all the other species, our records add new localities that fall within areas where these reptiles were previously reported. Species richness and Shannon’s H’ index show that herpetofauna diversity was higher in the areas along the Southern Bug River. The maximum number of records within a single cell was 118 (for 10 species) in this oblast. Also the high number of identified reptile chorotypes (nine) within the Mykolaiv Oblast revealed that southern Ukraine is an important zoogeographical territory in Europe. These data provide the basis for future biogeographical and ecological studies and conservation priorities.


2019 ◽  
Vol 11 (11) ◽  
pp. 14402-14414 ◽  
Author(s):  
Fei Li ◽  
Xiang-Yuan Huang ◽  
Xing-Chao Zhang ◽  
Xing-Xi Zhao ◽  
Jian-Huan Yang ◽  
...  

We conducted field surveys on the mammalian diversity in the Tengchong Section of Gaoligongshan National Nature Reserve in Yunnan Province, China, using camera trap and transect method between April 2014 and May 2018.  A total of 46 identifiable mammal species were recorded, including one new record for China and nine new species for the Tengchong County.  Of the 46 species, nine are globally threatened (three Endangered and six Vulnerable) and six are Near Threatened on the IUCN Red List of Threatened Species.  Species richness of most mammal groups in Tengchong remains high compared to similar sites in neighbouring countries; however, encounter rates for species vulnerable to high hunting pressures were quite low and large carnivores, except the Asiatic Black Bear, were either extirpated or at critically low numbers.  Future surveys should cover a wider elevation range and a variety of microhabitats to increase the probability of detecting the species not yet recorded.  To enhance the conservation value of the reserve for the diverse mammalian community, poaching and livestock grazing should be further controlled; in addition, protection and restoration of low-altitude forests should be encouraged.  Monitoring and research on selected flagship species should also be conducted.


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