scholarly journals New records of a critically endangered shrew from Mexican cloud forests (Soricidae, Cryptotis nelsoni) and prospects for future field research

2018 ◽  
Vol 6 ◽  
Author(s):  
Lázaro Guevara ◽  
Víctor Sánchez-Cordero
Keyword(s):  
New Records ◽  
Conservation Status ◽  
Biosphere Reserve ◽  
Climatic Conditions ◽  
Critically Endangered ◽  
Type Locality ◽  
Mountain Range ◽  
Los Tuxtlas ◽  
Cloud Forests ◽  
Niche Modelling

The Nelson´s small-eared shrew, Cryptotisnelsoni (Merriam, 1895), is a critically endangered species, endemic to cloud forests in Los Tuxtlas, a mountain range along the Gulf of Mexico coast. This species is only known from the type locality and its surroundings. Here we present new records that extend its distribution approximately 7 km southeast of the type locality and report more specimens near to the type locality. We also identified climatically suitable areas for C.nelsoni using ecological niche modelling and investigated the sampling bias to identify poorly sampled areas in Los Tuxtlas. We suggest that the scarcity of records in other areas with suitable climatic conditions throughout Los Tuxtlas is a consequence of incomplete surveys. We strongly highlight the importance of continuing surveying this critically endangered shrew using more efficient sampling techniques to better understand its current distribution and conservation status. Despite all known localities occurring inside Los Tuxtlas Biosphere Reserve, deforestation and climate change still pose current and future threats to this species.

scholarly journals Herpetofauna of the Amarkantak Plateau in central India

2020 ◽  
Vol 27 (3) ◽  
pp. 397-410
Author(s):  
Mukesh Ingle
Keyword(s):  
Biosphere Reserve ◽  
Central India ◽  
Critically Endangered ◽  
Type Locality ◽  
Sacred Grove ◽  
Mountain Range ◽  
The Core ◽  
Narmada River ◽  
Landscape Level

I conducted herpetofaunal surveys in poorly explored sections of Central India: The Amarkantak Plateau; The Son, Johila, and Narmada river lowlands; parts of the Maikal Mountain Range; and pockets of the core zone area of Achanakmar-Amarkantak Biosphere Reserve. I recorded a total of 61 species (17 amphibian and 44 reptilian). Noteworthy findings included the rediscovery of the Critically Endangered Sacred Grove Bush Frog (Philautus sanctisilvaticus) at its type locality after 54 years, new state records for Dobson’s Burrowing Frog (Sphaerotheca dobsonii) and Beddome’s Grass Skink (Eutropis beddomii), and significant new distributional records for a number of species. This study highlights the importance of landscape-level, long-term fieldwork to untangle the hidden diversity of the Amarkantak Plateau.

New records of amphibians parasitized by chiggers in Los Tuxtlas Biosphere Reserve, Mexico, and taxonomic notes on Hannemania mexicana (Acariformes: Prostigmata: Leeuwenhoekiidae) 

2016 ◽  
Vol 21 (1) ◽  
pp. 13 ◽  
Author(s):  
MÓNICA JACINTO-MALDONADO ◽  
Ricardo Paredes-León ◽  
GUILLERMO SALGADO-MALDONADO ◽  
ANDRÉS GARCÍA ◽  
GERARDO SUZÁN
Keyword(s):  
New Records ◽  
Biosphere Reserve ◽  
Los Tuxtlas

scholarly journals Bat Diversity in Cat Ba Biosphere Reserve, Northeastern Vietnam: A Review with New Records from Mangrove Ecosystem

Diversity ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 376
Author(s):  
Vu Dinh Thong ◽  
Annette Denzinger ◽  
Nguyen Van Sang ◽  
Nguyen Thi Thu Huyen ◽  
Hoang Trung Thanh ◽  
...  
Keyword(s):  
Tropical Forests ◽  
New Records ◽  
Conservation Status ◽  
Biosphere Reserve ◽  
Terrestrial Ecosystems ◽  
Mangrove Ecosystem ◽  
Historical Records ◽  
Large Area ◽  
Mangrove Area ◽  
Bat Diversity

The Cat Ba Biosphere Reserve is internationally renowned for its spectacular karst landscape. It covers a large area with hundreds of limestone islands and various ecosystems including caves, tropical forests, and mangroves. However, previous surveys were only conducted in terrestrial ecosystems on Cat Ba Island. Therefore, bats inhabiting mangroves and the remaining islands did not receive attention from scientists up to 2014. To initially fill in the gaps, we conducted ten bat surveys between 2015 and 2020 with an emphasis on mangroves and previously unsurveyed islands. Bats were captured using mist nets and harp traps. Twenty-three species belonging to 13 genera of six families were recorded during the surveys. Of these, four species (Macroglossus minimus, Myotis hasselti, Phoniscus jagorii, Tylonycteris fulvida) are new to the reserve. Remarkably, 15 species belonging to seven genera of five families were captured in mangrove, which is the highest species diversity for bats reported from any mangrove area in mainland Southeast Asia. Based on results from the surveys and literature review, we here provide the most updated bat diversity of the reserve with confirmed records of 32 bat species belonging to 16 genera of six families. Historical records of each species in the literature were reviewed. Two species, Scotophilus heathi and Scotophilus kuhlii, are unconfirmed because of unclear evidence in previous publications. Results of this study indicated that the mangrove ecosystem is important for bats but still poorly studied in Cat Ba Biosphere Reserve and Vietnam as a whole. In addition, morphological measurements, echolocation data, distributional records, and conservation status of each species are also given in this paper for potential research and conservation campaigns in the future.

scholarly journals New records of the troglobitic Hyalella veredae Cardoso & Bueno, 2014 (Crustacea, Amphipoda, Hyalellidae) from Minas Gerais caves, southeast Brazil, with notes on its natural history

Check List ◽  
2021 ◽  
Vol 17 (1) ◽  
pp. 115-123
Author(s):  
Tamires Zepon ◽  
Leonardo P. A. Resende ◽  
Alessandra A. P. Bueno ◽  
Maria Elina Bichuette
Keyword(s):  
Natural History ◽  
New Records ◽  
Minas Gerais ◽  
Population Variability ◽  
Critically Endangered ◽  
Type Locality ◽  
Southeastern Brazil ◽  
Restricted Area ◽  
Eye Size ◽  
Regional Impacts

Since its description, the troglobitic amphipod Hyalella veredae Cardoso & Bueno, 2014 has been recorded only in its type locality, Vereda da Palha cave, in southeastern Brazil. We report this species from three other caves in the region, expanding its distribution by at least 20 km². Inter- and intra-population variability in eye size was observed. Two caves had larger populations, probably due to the presence of biofilm. The species was classified as Critically Endangered due to its restricted area of occurrence, and regional impacts and threats.

scholarly journals Amphibians and reptiles from the Mt. Hamiguitan Range of eastern Mindanao Island, Philippines: new distribution records

Check List ◽  
2017 ◽  
Vol 13 (3) ◽  
pp. 2121 ◽  
Author(s):  
Christian E. Supsup ◽  
Faith M. Guinto ◽  
Bernard R. Redoblado ◽  
Rai S. Gomez
Keyword(s):  
Species Diversity ◽  
New Records ◽  
Conservation Status ◽  
The Philippines ◽  
Mountain Range ◽  
Remote Areas ◽  
The Past ◽  
Fragmented Forests ◽  
Species Occurrences ◽  
New Distribution

Despite extensive surveys conducted in the past, many remote areas in the Philippines remain unexplored and many species are unknown to science. The Mount Hamiguitan Range (MHR) is among these areas, containing large remaining forests tracts. In this study, we report new records of amphibians and reptiles from MHR and propose removing two species from the previously listed species from this mountain range. We used standardized techniques to sample populations of amphibians and reptiles in fragmented forests of Mt. Hamiguitan. Our survey resulted in 16 new records of species (four frogs, three lizards and nine snakes). Combining our results with previous studies, the known species diversity from the MHR is now increased to a total of 61 taxa. Our results highlight the underestimated diversity of herpetofauna of Mt. Hamiguitan, and we discuss the importance of repeated surveys for determining species occurrences and assessing their conservation status.

scholarly journals Status assessment of the Critically Endangered Azores Bullfinch Pyrrhula murina

2011 ◽  
Vol 21 (4) ◽  
pp. 477-489 ◽  
Author(s):  
RICARDO S. CEIA ◽  
JAIME A. RAMOS ◽  
RUBEN H. HELENO ◽  
GEOFF M. HILTON ◽  
TIAGO A. MARQUES
Keyword(s):  
Population Size ◽  
Conservation Status ◽  
Distance Sampling ◽  
Iucn Red List ◽  
Range Size ◽  
Critically Endangered ◽  
Survey Method ◽  
Mountain Range ◽  
Laurel Forest ◽  
Area Of Occupancy

SummaryThe Azores Bullfinch is endemic to the island of São Miguel (Azores, Portugal). Its status was uplisted to Critically Endangered in 2005 on the basis of an extremely small and declining population that was considered to be restricted to a very small mountain range (43 km2), in a single location, within which the spread of invasive plants constituted a threat to habitat quality. Nevertheless, information was mostly inferred, or the product of, non-systematic studies. In order to carry out a complete assessment of the conservation status we analysed: (i) population trend, calculated from annual monitoring 1991–2008, (ii) population size, and (iii) range size, obtaining estimates in a single morning study in 2008 involving the simultaneous participation of 48 observers. Contrary to previous inferences, the population is no longer decreasing, although quality of laurel forest habitat continues to decline due to the persistent threat of invasive species. Population size (mean ± SE) was estimated at 1,064 ± 304 individuals using distance sampling methods, although the estimate was very sensitive to the survey method used. Range size estimates (extent of occurrence and area of occupancy) were 144 km2 and 83 km2 respectively. Given the present information, we propose the downlisting of Azores Bullfinch to Endangered on the IUCN Red List.

scholarly journals Re-discovery of Catasetum mojuense (Orchidaceae: Catasetinae), a poorly-known Amazonian species

2020 ◽  
Vol 15 (4) ◽  
pp. 447-452
Author(s):  
Felipe Fajardo Villela Antolin Barberena ◽  
Deivid Lucas de Lima da Costa ◽  
José Antônio Lima Rocha Junior
Keyword(s):  
Geographic Distribution ◽  
Conservation Status ◽  
The State ◽  
Critically Endangered ◽  
Type Locality ◽  
Morphological Description ◽  
Distribution Data ◽  
Main Concern ◽  
Status Assessment

The re-discovery of Catasetum mojuense A.T. Oliveira & J.B.F. Silva (Orchidaceae), an Amazonian species described in 1999 from the State of Pará, Brazil, is reported. In addition to geographic distribution data, a morphological description, taxonomical and ecological comments, conservation status assessment and photographs of C. mojuense are also provided. The species is characterised by having epiphytic habit, non-resupinate staminate flowers, brown-spotted petals, galeiform and smooth (no ribs) lip, lateral lobes with sparsely short-fimbriate margins and convergent antennae. Catasetum mojuense is morphologically similar to Catasetum discolor (Lindl.) Lindl, but is easily distinguished by the longer sepals and petals and the spotted petals on the staminate flowers. The new locality of occurence for C. mojuense is approximately 190 km east of the type locality, also in the State of Pará. The species is assessed as Critically Endangered. Habitat depletion and the limited number of sites of occurrence are the main concern for the conservation of C. mojuense.

scholarly journals New records of Pygmy Round-eared Bat, Lophostoma brasiliense Peters, 1867 (Chiroptera, Phyllostomidae), and updated distribution in Colombia

Check List ◽  
2020 ◽  
Vol 16 (2) ◽  
pp. 277-285
Author(s):  
Diego A. Esquivel ◽  
Angie P. Penagos ◽  
Sebastián García-R. ◽  
David Bennett
Keyword(s):  
Ecological Niche ◽  
New Records ◽  
Conservation Status ◽  
Wide Distribution ◽  
Neotropical Region ◽  
Ecological Niche Modelling ◽  
Niche Modelling ◽  
Southern Mexico ◽  
New Localities ◽  
The Caribbean

Lophostoma brasiliense Peters, 1867 has a wide distribution in the Neotropical region, with records extending from southern Mexico to central Paraguay and Brazil. In Colombia the distribution of this species seems to be discontinuous, due to a scarcity of records, which also makes it difficult to know about its threats and conservation status. Here, we report three new localities from Amazonia, Andean and Orinoquia regions. We updated the distribution and performed ecological niche modelling that suggest a wider presence of this species on the Caribbean and the Orinoquia region. Finally, we added some ecological notes about this species.

scholarly journals The conservation status of Derris scandens (Roxb.) Benth. var. saharanpurensis (Thoth.) Thoth. (Fabaceae), a climber endemic to Saharanpur, Uttar Pradesh, India

2016 ◽  
Vol 8 (5) ◽  
pp. 8837
Author(s):  
Vijai Malik
Keyword(s):  
Population Size ◽  
Conservation Status ◽  
Uttar Pradesh ◽  
Critically Endangered ◽  
Type Locality ◽  
Field Observations ◽  
Forest Division ◽  
Woody Climber ◽  
Iucn Criteria ◽  
Made In

This paper presents observations on the population size and conservation status of Derris scandens var. saharanpurensis (Fabaceae), a woody climber endemic to Saharanpur, Uttar Pradesh, India.  The surveys were made in Saharanpur forest division, which forms the type locality of this variety.  On the basis of field observations this taxon is recommended for IUCN criteria of Critically Endangered [CR B1ab(iii,v)+2ab(iii,v)+2c(iv); C2a(i); D]. 

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