scholarly journals Status of, and conservation recommendations for, the Critically Endangered crested black macaque Macaca nigra in Tangkoko, Indonesia

Oryx ◽  
2011 ◽  
Vol 46 (2) ◽  
pp. 290-297 ◽  
Author(s):  
Juan Francisco Gallardo Palacios ◽  
Antje Engelhardt ◽  
Muhammad Agil ◽  
Keith Hodges ◽  
Roger Bogia ◽  
...  
Keyword(s):  
Basal Area ◽  
Iucn Red List ◽  
Critically Endangered ◽  
Current Status ◽  
Line Transect ◽  
Strong Correlations ◽  
Illegal Hunting ◽  
Line Transect Survey ◽  
Macaca Nigra ◽  
Abundance And Distribution

AbstractThe crested black macaque Macaca nigra, endemic to Sulawesi, Indonesia, is categorized as Critically Endangered on the IUCN Red List and its population in the Tangkoko Nature Reserve is probably the only viable one within its native range. Earlier studies suggested that this population suffered a decline of 75% during 1978–1994. To evaluate its current status we conducted a line transect survey in the Reserve and assessed effects of ecological and anthropogenic variables on macaque abundance and distribution. We estimated a density of 44.9 individuals km-2 (95% confidence interval, CI, 25.6–78.8) and a total population of 1,951 individuals (CI 1,113–3,421). This estimate of density is 35% lower than that of 68.7 individuals km-2 in 1994. There were moderate to strong correlations between macaque abundance and vegetation structure (basal area and canopy tree density). We observed illegal logging in the area and therefore habitat quality for macaques may be indirectly affected by illegal human activities. If our population estimate is projected linearly M. nigra could become extinct in Tangkoko within 46 years, highlighting the urgent need to improve management of illegal hunting and logging in the Reserve.

scholarly journals Current Status of Threatened Plant Collections in Cibodas Botanical Garden Based on IUCN Red List

2020 ◽  
Vol 9 (1) ◽  
pp. 31
Author(s):  
Vandra Kurniawan ◽  
Dwinda Mariska Putri ◽  
Muhammad Imam Surya
Keyword(s):  
Threatened Species ◽  
Conservation Status ◽  
Botanical Garden ◽  
Iucn Red List ◽  
Red List ◽  
Critically Endangered ◽  
Current Status ◽  
Main Task ◽  
Threatened Plant ◽  
Plant Collections

One of the main task of Cibodas Botanical Garden (CBG) is to conserve the Indonesian plants species. Moreover, the preservation and enrichment of threatened plant collections based on IUCN red list categories became an important programme for plants conservation in CBG. The aims of this study are to inventory threatened plant collections and to review the status of CBG threatened plant collections. List of threatened plant collections was gathered from SINDATA, a system developed by CBG. The collection, was reviewed by inspecting current collections in CBG. Literature study was done to review the conservation status of the threatened plant collections. The conservation status was checked in IUCN red list website. The results shown that CBG had collected 86 species of threatened plants, which is 13 Critically Endangered (CR) species, 39 Endangered (EN) species, and 34 Vulnerable (VU) species. Critically endangered category consists of 13 species belong to 8 families and 10 genus. Endangered category consists of 39 species belong to 17 families and 34 genus. Vulnerable category consists of 34 species belong to 27 families and 28 genus. The largest collections of threatened species was genus Nepenthes, which is 16% (14 species) from the total threatened species in CBG. Furthermore, CBG had succeeded in collecting 40 species of Indonesian native plants in which Dipterocarpaceae species were dominate the collection with 7 species. These species are listed as critically endangered (3 species) and endangered (4 species).

scholarly journals Present status and diversity of avian fauna in Purbasthali bird sanctuary, West Bengal, India

2018 ◽  
Author(s):  
Santanu Debnath ◽  
Souvik Biswas ◽  
Ashis Kumar Panigrahi
Keyword(s):  
West Bengal ◽  
Environmental Changes ◽  
Integrated Management ◽  
Bird Species ◽  
Diversity Indices ◽  
Health Condition ◽  
Iucn Red List ◽  
Current Status ◽  
Bird Diversity ◽  
Line Transect

Birds play a crucial role in many food webs of aquatic ecosystem and the birds are known as good ‘bio-indicators’ as they are very sensitive to minor environmental changes. The present study was carried out in Purbasthali bird sanctuary of West Bengal (India) and its surroundings from January 2016 to December 2016 to explore the current status and diversity of avian fauna. The point count and line transect methods were implemented in bird counting. A total of 86 species of birds belonging to 31 families were recorded from the study area. Anatidae and Ardeidae were the dominant families with highest relative diversity. Residential status, IUCN Red list status and Relative abundance of bird species were also considered. Different diversity indices were also calculated. Purbasthali bird sanctuary supports a huge amount of bird diversity. So continuous monitoring of avian fauna and health condition of the ecosystem by local or state levels on taking integrated management programs will helpful to maintain a sustainable development of the habitat.

scholarly journals The current distribution and status of leopards Panthera pardus in China

Oryx ◽  
2015 ◽  
Vol 51 (1) ◽  
pp. 153-159 ◽  
Author(s):  
Alice Laguardia ◽  
Jan F. Kamler ◽  
Sheng Li ◽  
Chengcheng Zhang ◽  
Zhefeng Zhou ◽  
...  
Keyword(s):  
Current Distribution ◽  
Total Population ◽  
Recent Literature ◽  
Iucn Red List ◽  
Critically Endangered ◽  
Current Status ◽  
Panthera Pardus ◽  
The North ◽  
Iucn Assessment ◽  
Near Threatened

AbstractThe leopard Panthera pardus, categorized globally as Near Threatened on the IUCN Red List, has the widest distribution of any wild felid species, although in Asia it has declined dramatically and five subspecies are Endangered or Critically Endangered. In China at least three subspecies have been reported to occur throughout much of the country, and in 1998 the population was estimated to be 1,000. However, recent studies have indicated that leopards have disappeared from large areas, probably as a result of habitat loss, a low prey base and poaching, indicating this species may not be as common in China as previously believed. To examine this we reviewed recent literature and interviewed specialists to determine the current status and distribution of the leopard in China. Our findings indicate that the species has declined dramatically, with confirmation of presence at only 44 sites in 11 provinces, despite extensive surveys. Current populations are small and fragmented, and occur mainly in isolated nature reserves. We estimate a total population of only 174–348 P. pardus japonensis (the north Chinese leopard), which is endemic to China, and < 30 individuals for each of the other subspecies whose distributions extend beyond China. We recommend that a separate IUCN assessment be made for P. pardus japonensis, and that this subspecies be categorized as Critically Endangered. Our findings are the first reliable estimates of the current distribution and status of the leopard in China, and provide valuable information that will help guide conservation efforts.

PROFIL KERAGAMAN VEGETASI EKOSISTEM MANGROVE DI DESA TAMUKU KABUPATEN LUWU UTARA

2019 ◽  
Vol 5 ◽  
pp. 104
Author(s):  
Suhendra Purnawan ◽  
Subari Yanto ◽  
Ernawati S.Kaseng
Keyword(s):  
Survey Methods ◽  
Mangrove Ecosystem ◽  
Line Transect ◽  
Mangrove Forests ◽  
Vegetation Diversity ◽  
Line Transect Survey ◽  
Analysis Technique ◽  
Mangrove Vegetation ◽  
Data Collection Technique ◽  
The Impact

This study aims to describe the profile of vegetation diversity in the mangrove ecosystem in Tamuku Village, Bone-Bone-Bone District, North Luwu Regency. This research is a qualitative research using survey methods. The data collection technique uses the Quadrant Line Transect Survey technique. The data analysis technique uses the thinking flow which is divided into three stages, namely describing phenomena, classifying them, and seeing how the concepts that emerge are related to each other. The results of this study are the profile of mangrove vegetation in Tamuku Village, which is still found 16 varieties of true mangrove vegetation and 7 varieties of mangrove vegetation joined in the coastal area of Tamuku Village, Bone-Bone District, North Luwu Regency, South Sulawesi. The condition of mangrove vegetation in Tamuku Village is currently very worrying due to human activities that cause damage such as the project of normalization of flow, opening of new farms, disposal of garbage, water pollution due to chemicals, and exploitation of mangrove forests for living needs. The impact is ecosystem damage and reduced vegetation area as a place to grow and develop mangroves.

Genetic Diversity and Structure of the Nile Soft-Shelled Turtle (Trionyx triunguis) Along the Mediterranean coast of Turkey

2020 ◽  
Vol 27 (6) ◽  
pp. 307-315
Author(s):  
Özgür Güçlü ◽  
Bülent Bozdoğan
Keyword(s):  
Microsatellite Loci ◽  
Geographic Distance ◽  
Iucn Red List ◽  
Genetic Variations ◽  
Mediterranean Coast ◽  
Critically Endangered ◽  
Mediterranean Populations ◽  
Genetic Diversity And Structure ◽  
Polymorphic Microsatellite ◽  
The Mediterranean

The Nile soft-shelled turtle (Trionyx triunguis) is distributed between Dalyan and Samandağ throughout the Mediterranean coast in Turkey. The Mediterranean subpopulation of the Nile soft-shelled turtle is listed as critically endangered in the IUCN Red List Categories. This investigation aimed to determinate levels of genetic variations and patterns of genetic structures among Mediterranean populations in Turkey by using T. triunguis-specific microsatellite primers. A total of 13 polymorphic microsatellite loci were studied among samples of 121 individuals collected from five populations in Turkey. Of 13 polymorphic microsatellite loci used, 3 new were identified in this study. The genetic differentiation among the 5 studied populations of T. triunguis was significant (p 0.001). The analysis of molecular variance (AMOVA) indicated that genetic variations occurred mainly within populations (89.7%) rather than among populations (10.3%). Structure analysis showed presence of two main groups among the Mediterranean T. triunguis populations. However genetic variations among populations were not correlated with geographic distance between the locations. Analysis of data showed that one of the populations (Dalyan) had undergone a bottleneck effect. Migration analysis indicates that T. triunguis migrates between five Mediterranean populations in Turkey. We concluded that based on our results the status of ‘critically endangered’ of T. triunguis should be maintained. Long term population genetic survey studies should be undertaken and changes in habitats of T. triunguis populations, as well as their population size and structure should be monitored for each population to be able to establish a clear strategy for protection of T. triunguis.

scholarly journals Distribution and illegal killing of the Endangered Indian pangolin Manis crassicaudata on the Potohar Plateau, Pakistan

Oryx ◽  
2017 ◽  
Vol 53 (1) ◽  
pp. 159-164 ◽  
Author(s):  
Tariq Mahmood ◽  
Faraz Akrim ◽  
Nausheen Irshad ◽  
Riaz Hussain ◽  
Hira Fatima ◽  
...  
Keyword(s):  
Information System ◽  
Food Web ◽  
Geographical Information System ◽  
Iucn Red List ◽  
Red List ◽  
Geographical Information ◽  
Illegal Hunting ◽  
Iucn Red List Assessment ◽  
Iucn Assessment ◽  
Illegal Killing

AbstractThe Endangered Indian pangolin Manis crassicaudata, a burrowing, armoured mammal, plays an important role in the food web by consuming insects and termites. In Pakistan the species’ range includes the 22,000 km2 Potohar Plateau, where it is under pressure from illegal hunting for its scales and requires conservation attention. We used a geographical information system to quantify the range of the Indian pangolin on the Plateau and to compare this with the range estimated in the IUCN Red List assessment of the species. We found that the species occupies c. 89% of the Plateau, in eight of the 10 protected areas, compared with the IUCN estimate of 71%, and we recorded the species at 40 locations on the Plateau outside the range predicted by the IUCN assessment. We collected data on the illegal capture and killing of the species, recording 412 individuals that had been killed at 48 locations between January 2011 and the end of April 2013. The highest number of killings was recorded in Chakwal District (n = 156, at 13 sites) followed by the Attock District (n = 149, at eight sites). Although the Indian pangolin's range on the Potohar Plateau is c. 18% larger than that estimated in the IUCN assessment, the species is under pressure from illegal killing and requires urgent conservation measures to save the small remaining population and avoid the extirpation of this vital insectivorous predator from the area.

Novelties in Begonia (Begoniaceae) from the campos rupestres of Serra do Padre Ângelo, Minas Gerais, Brazil: a new species and a new record

Phytotaxa ◽  
2021 ◽  
Vol 510 (1) ◽  
Author(s):  
LUDOVIC JEAN CHARLES KOLLMANN ◽  
PAULO MINATEL GONELLA
Keyword(s):  
New Species ◽  
High Elevation ◽  
Iucn Red List ◽  
Minas Gerais ◽  
Small Population ◽  
Critically Endangered ◽  
Campos Rupestres ◽  
Rock Outcrops ◽  
Critically Endangered Species ◽  
Minas Gerais State

Begonia piranga (Begoniaceae) is a new narrowly endemic species from the campos rupestres of Serra do Padre Ângelo, a quartzitic massif in Conselheiro Pena, eastern Minas Gerais state, Brazil. Description, diagnosis, taxonomic comments, detailed illustrations, field photographs, and a provisional IUCN Red List Assessment are provided. The new species is considered Critically Endangered due to its restricted occurrence in high elevation rock outcrops, small population size, and decline in the quality of the habitat. Begonia vasconcelosiana, another Critically Endangered species, is also newly reported here for Serra do Padre Ângelo. These discoveries add to the increasing list of novelties from Serra do Padre Ângelo, reinforcing the urge for conservation actions to protect the endemic flora of this Serra and other areas of campos rupestres in eastern Minas Gerais state.

scholarly journals Community-based study to demonstrate the presence and local perspectives of the Critically Endangered Chinese Pangolin Manis pentadactyla in Zhejiang Wuyanling, China

2020 ◽  
Vol 12 (5) ◽  
pp. 15547-15556
Author(s):  
Hongying Li ◽  
Shusheng Zhang ◽  
Ji Zhang ◽  
Zupei Lei ◽  
Fangdong Zheng ◽  
...  
Keyword(s):  
Mainland China ◽  
Infrared Camera ◽  
Critically Endangered ◽  
Community Based ◽  
Illegal Hunting ◽  
Critically Endangered Species ◽  
The Status ◽  
In The Wild ◽  
Manis Pentadactyla ◽  
Camera Surveillance

Illegal hunting and trading of the Chinese Pangolin Manis pentadactyla has pushed this Critically Endangered species close to extinction.  While local reports have suggested its continued presence in mainland China, this has not been confirmed by a research group except for a survey of presumed pangolin burrows in 2004.  We conducted a six-month field study using infrared camera surveillance and community questionnaire survey in Zhejiang Wuyanling National Nature Reserve in China, to determine the status of Chinese Pangolins and understand local attitudes towards the conservation of this species.  Our study details the first verifiable documentation of two visual records of a Chinese Pangolin in the wild, demonstrating the suitability of pangolin habitat in Wuyanling region, and suggests an increasing awareness and strong willingness in local communities to conserve the Chinese Pangolin.  

scholarly journals The Last-Surviving Moroccan Dorcas Gazelle (Gazella dorcas massaesyla) Viability Analysis [M’Sabih Talaa Reserve, Morocco]

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Ait Baamrane Moulay Abdeljalil ◽  
Znari Mohammed ◽  
El Mercht Said ◽  
Bellout Siham ◽  
Naimi Mohamed
Keyword(s):  
Population Viability Analysis ◽  
Environmental Stochasticity ◽  
General Interest ◽  
Line Transect ◽  
Catastrophic Events ◽  
Viability Analysis ◽  
Line Transect Survey ◽  
Management Measures ◽  
Feral Dogs ◽  
Considerable Impact

The single remnant Moroccan dorcas gazelle (Gazella dorcas massaesyla) has been isolated for more than five decades in the M’Sabih Talaa reserve, an arid area of west-central Morocco. This population has been subject to different disturbances, especially poaching and depredation by feral dogs. A five-season line transect survey revealed that the population size has been halved in less than 15 years with a lower apparent fecundity rate. In the present work, we carried out a population viability analysis simulating different scenarios using VORTEX software based on available demographic and life-history data from captive populations,. A sensitivity analysis revealed that inbreeding depression and possible catastrophic events could have a considerable impact on the population’s prospects. Scenarios of splitting population into two subpopulations with different management measures reducing/deleting mortality sources, is proposed. Such scenarios resulted in reducing the consequences of catastrophic events would significantly mitigate the harmful effects of both inbreeding and environmental stochasticity. These results may be of a general interest to conservationists dealing with this unique and imperiled population.

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