scholarly journals The IUCN-SSC Cave Invertebrate Specialist Group

2018 ◽  
Vol 1 ◽  
Author(s):  
Louis Deharveng ◽  
Tony Whitten ◽  
Judson Wynne ◽  
Ana Komericki ◽  
Sonia Khela
Keyword(s):  
Social Impact ◽  
Narrow Range ◽  
Iucn Red List ◽  
Red List ◽  
Business Sector ◽  
Conservation Priority ◽  
The Past ◽  
Species Survival ◽  
Management Plans ◽  
Specialist Group

The Cave Invertebrate Specialist Group, an IUCN Species Survival Commission, is a group of 80 taxonomists, biospeleologists, ecologists, and conservation biologists. Since 2014, our objectives have been to: (1) conserve subterranean habitats, and address one of the largest lacunas in conservation biology – the protection of sensitive cave and subterranean invertebrate populations; (2) conduct IUCN Red List evaluations for imperiled and/or narrow range endemic species; (3) encourage comprehensive baseline biodiversity surveys, in particular to determine the proportion of unknown biodiversity yet to be discovered; and, (4) provide collaborative opportunities with the business sector for conducting Environmental and Social Impact Assessments, Biodiversity Action Plans, and site and species management plans. We will our accomplishments over the past four years including growth of membership, the number of Red List evaluations conducted and the total number of species recognized as a conservation priority.

scholarly journals Twenty years of monitoring of the Vulnerable Farasan gazelle Gazella gazella farasani on the Farasan Islands, Saudi Arabia: an overview

Oryx ◽  
2011 ◽  
Vol 45 (1) ◽  
pp. 50-55 ◽  
Author(s):  
Peter Low Cunningham ◽  
Torsten Wronski
Keyword(s):  
Saudi Arabia ◽  
Census Data ◽  
Iucn Red List ◽  
Red List ◽  
Habitat Conditions ◽  
Species Survival ◽  
Farasan Islands ◽  
Free Ranging ◽  
Wildlife Census ◽  
Domestic Stock

AbstractThe mountain gazelle Gazella gazella in Saudi Arabia is categorized as Vulnerable on the IUCN Red List. On the mainland the species’ survival depends on a few remnant populations in the western Mountains and coastal plains and on two reintroduced populations. The largest natural population of G. gazella in Saudi Arabia is the Farasan gazelle subspecies G. g. farasani, which inhabits the Farasan Islands in the Red Sea. We review and collate the available literature on this subspecies, mainly unpublished reports presenting wildlife census data, and supplement this with the most recent, 2009, count. The number of free-ranging gazelles has remained approximately constant since the first counts in 1988, with an overall density of 0.64 km-2 and an estimated population of 1,039 on Farasan Kebir in 2009. The populations on two other islands, As Saqid and Zifaf, have not fared as well, possibly because of uncontrolled hunting pressure, competition with domestic stock or poor habitat conditions overall. The population on Qummah Island is extinct. Threats to this subspecies include uncontrolled hunting and uncoordinated development. Continued protection of this apparently stable population of mountain gazelle in Saudi Arabia is imperative to ensure the survival of the species.

scholarly journals Mammal Fauna in Phong Nha Ke Bang - Hin Nam No Region: the Species Diversity and Conservation Singnificance

2018 ◽  
Vol 40 (3) ◽  
Author(s):  
Nguyen Xuan Dang ◽  
Nguyen Xuan Nghia
Keyword(s):  
Threatened Species ◽  
Comprehensive Evaluation ◽  
Iucn Red List ◽  
Red List ◽  
Conservation Priority ◽  
Mammal Species ◽  
Red Data Book ◽  
Mammal Fauna ◽  
Priority Species ◽  
Data Book

Phong Nha Ke Bang - Hin Nam No Region (PNKB-HNN Region) is one of the world largest limestone conservation landscapes which contains the universal outstanding values on biodiversity and high diversity of flora and fauna. This paper reviewsresults of mammal biodiversity surveys conducted from 1970s to 2017 in PNKB-HNN region to give more comprehensive evaluation of the fauna diversity and conservation significance. The review shows that up to date, 150 mammal species from 32 families and 11 orders have been recorded in PNKN - HNN region. The highest diversity is order Chiroptera(54 species), then follow orders Rodentia (35 species), Carnivora (30 species), Primates (11 species), Artiodactyla (8 species), Soricomorpha (4 species). Other orders (Pholidota, Erinaceomorpha, Lagomorpha, Scandentia and Dermoptera) have only 1-2 species each. PNKB NP alone contains143 species belonging to 32 families and 11 orders while HNN NCA contains 75 species belonging to 32 families and 11 orders. PNKB-HNN region is the home of 56 mammal species of conservation priority including 41 species enlisted in 2017 IUCN Red List, 46 species enlisted in 2007 Vietnam Red Data Book. Out of 41 species enlisted in 2017 IUCN Red List, 3 species are at Critical Endangered category (CR), 9 species at Endangered category (EN), 16 species at Vulnerable category (VU), 10 species are at Near Threatened category (NT) and 3 species are of Deficient Data (DD). Out of 46 species enlisted in Vietnam Red Data Book, 3 species are at CR, 19 species at EN, 21 species at VU, 2species at LR and 1 Species of DD.PNKB NP alone harbors 54 species of conservation priority including 40 globally threatened species, 45 nationally threatened species, 40 species under Governmental Decree No. 32/2006/ND-CP and 24 species under Governmental Decree No. 160/2013/ND-CP. HNN NCA contains 39 species of conservation priority including 32 species enlisted in 2017 IUCN Red List and 34 species enlisted in 2007 Vietnam Red Data Book. The most notable conservation priority species in PNKB-HNN are Hatinh langur Trachypithecus hatinhensis, Red-shanked Douc Pygathrix nemaeus, Laotian Black langur Trachypithecus laotum, Southern White-cheeked Gibbon Nomascus siki, Malaysian Bear Helarctosmalayanus, Sun Bear Ursus thibetanus, Chinese Serow Capricornis milneedwardsii, Annamite Striped Rabbit Nesolagus timminsii and Laotian Rock RatLaonastes aenigmamus.Moreover, PNKB-HNN region is the only home of Laotian Rock RatLaonastes aenigmamus andLao Limestone RatSaxatilomys paulinae

scholarly journals Conservation status of the recently described Ecuadorian Amazon parrot Amazona lilacina

2020 ◽  
Vol 30 (4) ◽  
pp. 586-598 ◽  
Author(s):  
REBECCA BIDDLE ◽  
IVETTE SOLIS PONCE ◽  
PAUL CUN ◽  
SIMON TOLLINGTON ◽  
MARTIN JONES ◽  
...  
Keyword(s):  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Coastal Forests ◽  
The Past ◽  
Ecuadorian Amazon ◽  
Conservation Actions ◽  
Global Population ◽  
Range Estimate ◽  
Red Listing

SummaryAmazona lilacina is a threatened species endemic to Ecuador, existing across a patchwork of mangroves, lowland coastal forests, agricultural and community owned land. The species was described in 2014 and listed as ‘Endangered’ on the IUCN Red List, however, full assessment of the population was lacking. Using a combination of field observations, roost surveys and community questionnaires, conducted over the last 20 years, we provide up-to-date information on the species’ Extent of Occurrence, estimate its global population size, and evaluate its level of threat. Our results suggest the species occurs across an area of 19,890 km2 in three distinct geographically isolated subpopulations. Roost surveys across the range estimate the minimum remaining population at 741–1,090 individuals and we present evidence to suggest a 60% decline over the past 19 years in one part of the species’ range. We conducted community questionnaires with 427 people from 52 communities. The presence of pet parrots was reported in 37 communities, including 17 communities which reported pet A. lilacina. From this we predict that over half of all communities within our study area keep parrots as pets and at least 96 communities keep A. lilacina. Our findings justify an IUCN Red Listing of at least ‘Endangered’ for this species and highlight the need for conservation support. In order to assess population health in more detail, further research is required to assess genetic diversity and roost dynamics, and to identify areas that may be important for feeding and nesting throughout the range. As many of these areas are likely to overlap with community owned land, we suggest that future conservation actions should revolve around, and be led by, these communities.

scholarly journals Current status and distribution of the Vulnerable common hippopotamus Hippopotamus amphibius in Mozambique

Oryx ◽  
2012 ◽  
Vol 47 (1) ◽  
pp. 70-76 ◽  
Author(s):  
Charles S. Mackie ◽  
Kevin M. Dunham ◽  
Andrea Ghiurghi
Keyword(s):  
Iucn Red List ◽  
Red List ◽  
Current Status ◽  
Status Report ◽  
Species Survival ◽  
Hippopotamus Amphibius ◽  
The Status ◽  
The Common ◽  
C 50 ◽  
Zambezi River

AbstractPopulations of the common hippopotamus Hippopotamus amphibius in Mozambique were surveyed in 2010 during a national survey of the crocodile Crocodylus niloticus. Numbers of hippos seen during aerial counts along major rivers and lake shores were corrected to allow for undercounting of groups and these data were supplemented with the results of other recent surveys. There are now estimated to be c. 3,000 hippos in Mozambique and c. 50% of these live in Lake Cabora Bassa or the Zambezi River. The national total is much lower than the figure of 16,000–20,500 hippos estimated in 1986, used for the latest (v. 2012.1) IUCN Red List. The 1986 total included an estimated 10,000–12,000 in Marromeu Complex, an area that includes the southern Zambezi delta. We review the results of past surveys and find that the number of hippos in Marromeu Complex in 1986 was probably three times fewer than estimated. Although the number of hippos in this area declined markedly during the 1980s we believe that the 1986 overestimate of hippos in Marromeu Complex is an error that has been perpetuated for 25 years. Particular care should be taken when Red List assessments roll-over old and unsupported estimates of numbers. Even if an old estimate was accurate there comes a time when it should not simply be rolled-over. The 2007 IUCN Species Survival Commission's African Elephant Status Report provides a model for future assessments of the status of the common hippopotamus, categorizing the numbers of a species according to the type of survey, its reliability, and how long ago it was conducted.

scholarly journals Decline of the Tibetan gazelle Procapra picticaudata in Ladakh, India

Oryx ◽  
2006 ◽  
Vol 40 (2) ◽  
pp. 229-232 ◽  
Author(s):  
Yash Veer Bhatnagar ◽  
Rinchen Wangchuk ◽  
Charudutt Mishra
Keyword(s):  
Tibetan Plateau ◽  
Conservation Management ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Livestock Grazing ◽  
The Tibetan Plateau ◽  
The Past ◽  
Northern India ◽  
Participatory Conservation

The Tibetan gazelle Procapra picticaudata is endemic to the Tibetan plateau. In the Ladakh region of northern India its range declined from c. 20,000 km2 in the early 1900s to c. 1,000 km2 in the late 1980s. Here we report the results of our recent (1999–2003) assessments of the gazelle's conservation status in Ladakh. Range-wide surveys indicate that the present population of the Tibetan gazelle in Ladakh is c. 50, restricted to a range of c. 100 km2. Populations in the Tso Kar basin and Dungti have gone extinct within the past decade. Throughout the last century hunting was the primary cause of the gazelle's decline. Although hunting has been brought under control in the last two decades, intensified livestock grazing appears to have prevented the gazelle's recovery and may be precipitating further declines. The species needs immediate, participatory conservation management, as well as a reassessment of its IUCN Red List status.

scholarly journals Giant otter Pteronura brasiliensis density and abundance in Llanos Orientales de Colombia in the Orinoco basin

Oryx ◽  
2020 ◽  
pp. 1-4
Author(s):  
Germán Garrote ◽  
Beyker Castañeda ◽  
Jose Manuel Escobar ◽  
Laura Pérez ◽  
Brayan Marín ◽  
...  
Keyword(s):  
South America ◽  
Population Size ◽  
20Th Century ◽  
Conservation Status ◽  
Species Conservation ◽  
Iucn Red List ◽  
Red List ◽  
Recreational Fishing ◽  
Pteronura Brasiliensis ◽  
Direct Counts

Abstract The giant otter Pteronura brasiliensis, categorized as Endangered on the IUCN Red List, was once widely distributed throughout South America. By the middle of the 20th century the giant otter had become locally extinct along the main rivers of the Orinoco basin. Although some populations seem to have recovered, the paucity of information available does not permit a full evaluation of the species' conservation status. The objective of this study was to estimate the abundance and density of the giant otter population along the Orinoco river in the municipality of Puerto Carreño, Vichada, Colombia, where there is important commercial and recreational fishing. Thirty-nine linear km were surveyed, repeatedly, with a total of 315 km of surveys. Population size was estimated by direct counts of individuals. All individuals detected were photographed and identified individually from their throat pelage patterns. In total, 30 otters were identified, giving a minimum density of 0.77 individuals per km, one of the highest reported for the species in Colombia. Given the high density in this well-developed area, our results highlight the importance of this population for the conservation of the species.

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