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Tadpole Consumption Is a Direct Threat to the Endangered Purple Frog, Nasikabatrachus Sahyadrensis
SALAMANDRA 51(3) 252–258 30 October 2015 CorrespondenceISSN 0036–3375 Correspondence Tadpole consumption is a direct threat to the endangered purple frog, Nasikabatrachus sahyadrensis Ashish Thomas & S. D. Biju Systematics Lab, Department of Environmental Studies, University of Delhi, Delhi 110 007, India Corresponding author: S. D. Biju, e-mail: [email protected] Manuscript received: 5 July 2014 Accepted: 30 December 2014 by Alexander Kupfer Amphibians across the world are suffering alarming popu- Southeast Asia have witnessed drastic population declines lation declines with nearly one third of the ca 7,300 species caused by overexploitation over the last couple of decades being threatened worldwide (Stuart et al. 2008, Wake & (Warkentin et al. 2008). Often, natural populations are Vredenburg 2008, IUCN 2014). Major factors attributed harvested without regard of the consequences or implica- to the decline include habitat destruction (Houlahan et tions of this practice on the dynamics or sustainability of al. 2000, Sodhi et al. 2008), chemical pollution (Ber ger the exploited populations (Getz & Haight 1989). When 1998), climate change (Adams 1999, Carpenter & Tur- the extent of exploitation is greater than the sustaining ca- ner 2000), diseases (McCallum 2007, Cushman 2006), pacity or turnover rate of a species, there is every possi- and invasive species (Boone & Bridges 2003). The West- bility that the species may become locally extinct, which ern Ghats of India, a global hotspot for amphibian diver- would subsequently have drastic ecological implications sity and endemism (Biju 2001, Biju & Bossuyt 2003), has in the particular region (Duffy 2002, Wright et al. 2006, more than 40% of its amphibian fauna threatened with ex- Carpenter et al. -
Being Highly Sensitive to Environmental Changes
Being highly sensitive to environmental changes, frogs are a wonderful barometer of the health of Peron's tree frog Recent studies show that four frog species are (Litoria peronii): has a harsh call. Found extinct and, of the 210 species found in Australia, throughout much of seven are critically endangered, eight are south-east Australia. endangered and 12 are vulnerable. Generally soft grey in colour, with small green Frogs are found in almost every habitat, speckles particularly in coastal regions of the east, far south- east and across the north. About 30 frog species are native to Victoria Frogs eat small live insects. Tadpoles can be Growling grass frog (Litoria raniformis) listed as Southern brown tree frog (Litoria ewingi): vegetarian, eating weeds and algae, or carnivorous, endangered and restricted to a handful of sites common across much of southern Victoria. a diet that includes smaller siblings. around Melbourne, including Werribee Open Range High "cree, cree, cree" call, often from grass stems at night Loss and general degradation of habitat, such as Zoo. Distinctive crawark, crok" call. the draining of swamps, and pollution from general Stuttering frog (Mixophyes balbus): this ground- Cane toad (Bufo mannus): introduced to run-off and industrial chemicals, has put many dwelling frog has not been seen in Victoria for 30 Australia in the 1930s in a failed attempt to control species at risk. Chytrid fungus is a threat, as are years, and populations in southern NSW are declining the sugar-cane weevil. Is widespread across north- predators, both native and introduced, such as Listed as vulnerable. -
Little Warriors Join Frog Fight
THE TELEGRAPH TUESDAY 26 FEBRUARY 2019 10 YOUNG METRO TECE Little warriors join frog fight Around a hundred students from around eight schools attended the Save The Frogs World Summit, held in association with the WISH Foundation, at the MP Birla Planetarium Seminar Hall emember the time when the monsoon nights were accom- R panied by the croaking of a frog on the wet streets? Those days have become a rarity now, pointing to the rapid decline in the number of frogs. Indeed, nearly a third of over 6,963 species of frogs and toads are threatened with extinction, requir- ing our immediate attention. Save The Frogs, a leading am- phibian conservation organisation which has been around for 10 years with a record of over 2,000 environ- Karthikeyan Vasudevan, mental educational events across 57 scientist at the CSIR Centre for countries, gave out this important Cellular and Molecular Biology, message at the Save The Frogs World shows the half-hour film, On The Summit, held for the first time in Brink. The film discussed how Calcutta. The event was held at the habitat destruction and the MP Birla Planetarium Seminar Hall, deadly amphibian disease, in association with the WISH founda- chytridiomycosis, are two of the tion, an NGO based out of Calcutta, Students of Rahara Nibedita Art School crafted several items, including cute and colourful paper frogs, main reasons behind the rapid working dedicatedly towards raising paintings and a painted unbrella as part of the programme to raise awareness on frogs extinction of the purple frog. environmental awareness. I think interactions like these Around a hundred keen students where we share our practical from eight schools attended the sum- knowledge with the young mit. -
A New Species of the Genus Nasikabatrachus (Anura, Nasikabatrachidae) from the Eastern Slopes of the Western Ghats, India
Alytes, 2017, 34 (1¢4): 1¢19. A new species of the genus Nasikabatrachus (Anura, Nasikabatrachidae) from the eastern slopes of the Western Ghats, India S. Jegath Janani1,2, Karthikeyan Vasudevan1, Elizabeth Prendini3, Sushil Kumar Dutta4, Ramesh K. Aggarwal1* 1Centre for Cellular and Molecular Biology (CSIR-CCMB), Uppal Road, Tarnaka, Hyderabad, 500007, India. <[email protected]>, <[email protected]>. 2Current Address: 222A, 5th street, Annamalayar Colony, Sivakasi, 626123, India.<[email protected]>. 3Division of Vertebrate Zoology, Department of Herpetology, American Museum of Natural History, Central Park West at 79th Street, New York NY 10024-5192, USA. <[email protected]>. 4Nature Environment and Wildlife Society (NEWS), Nature House, Gaudasahi, Angul, Odisha. <[email protected]>. * Corresponding Author. We describe a new species of the endemic frog genus Nasikabatrachus,from the eastern slopes of the Western Ghats, in India. The new species is morphologically, acoustically and genetically distinct from N. sahyadrensis. Computed tomography scans of both species revealed diagnostic osteological differences, particularly in the vertebral column. Male advertisement call analysis also showed the two species to be distinct. A phenological difference in breeding season exists between the new species (which breeds during the northeast monsoon season; October to December), and its sister species (which breeds during the southwest monsoon; May to August). The new species shows 6 % genetic divergence (K2P) at mitochondrial 16S rRNA (1330 bp) partial gene from its congener, indicating clear differentiation within Nasikabatra- chus. Speciation within this fossorial lineage is hypothesized to have been caused by phenological shift in breeding during different monsoon seasons—the northeast monsoon in the new species versus southwest monsoon in N. -
Amphibiaweb's Illustrated Amphibians of the Earth
AmphibiaWeb's Illustrated Amphibians of the Earth Created and Illustrated by the 2020-2021 AmphibiaWeb URAP Team: Alice Drozd, Arjun Mehta, Ash Reining, Kira Wiesinger, and Ann T. Chang This introduction to amphibians was written by University of California, Berkeley AmphibiaWeb Undergraduate Research Apprentices for people who love amphibians. Thank you to the many AmphibiaWeb apprentices over the last 21 years for their efforts. Edited by members of the AmphibiaWeb Steering Committee CC BY-NC-SA 2 Dedicated in loving memory of David B. Wake Founding Director of AmphibiaWeb (8 June 1936 - 29 April 2021) Dave Wake was a dedicated amphibian biologist who mentored and educated countless people. With the launch of AmphibiaWeb in 2000, Dave sought to bring the conservation science and basic fact-based biology of all amphibians to a single place where everyone could access the information freely. Until his last day, David remained a tirelessly dedicated scientist and ally of the amphibians of the world. 3 Table of Contents What are Amphibians? Their Characteristics ...................................................................................... 7 Orders of Amphibians.................................................................................... 7 Where are Amphibians? Where are Amphibians? ............................................................................... 9 What are Bioregions? ..................................................................................10 Conservation of Amphibians Why Save Amphibians? ............................................................................. -
Breeding and Nesting Behaviour of Rhacophorus Frogs Took Active Part in Nest Construction
RESEARCH COMMUNICATIONS Breeding and nesting behaviour of The breeding activity of rhacophorids like other an- urans is influenced by the abiotic factors like temperature Rhacophorus maximus (Anura: and rainfall7–9. Certain reproductive behaviour of many Rhacophoridae) in Meghalaya, anuran species like the timing of their calling period are North East India linked to climate10. Vocalization in amphibians is a com- mon component of breading behaviour as male anurans 1, 2 call to advertise their breeding status, defend territory and S. Khongwir *, R. N. K. Hooroo and attract females11. It was observed that Rhacophorus mala- 3 S. K. Dutta baricus produced advertisement calls after three or four 1Department of Zoology, Shillong College, Shillong 793 003, India heavy showers of rain5. Rainfall also fills the pools and 2Department of Zoology, North Eastern Hill University, ponds and provides excellent breeding sites for a number Shillong 793 022, India of anuran species, as there must be some standing water 3Nature Environment and Wildlife Society, Angul 759 123, India for their breeding activity. In this context, the Indian bull 12 13 The present study deals with the breeding and nesting frog, Rana tigerina and Ramanella variegata breed in behaviour of Rhacophorus maximus at Cherrapunjee the temporary rainwater pools; Polypedates maculatus and Mawsynram, Meghalaya, North East India. construct foam nests attached to vegetation either above Breeding activity of R. maximus occurred after the or near the water body4, Chirixalus simus construct foam first few showers of rain and an increase in air tem- nests hanging from grass over temporary water9, and perature. The species breeds sporadically for a short Rhacophorus lateralis construct a purse-like nest over period, which lasts for about 6–8 weeks during March water14. -
Cfreptiles & Amphibians
HTTPS://JOURNALS.KU.EDU/REPTILESANDAMPHIBIANSTABLE OF CONTENTS IRCF REPTILES & AMPHIBIANSREPTILES • VOL & AMPHIBIANS15, NO 4 • DEC 2008 • 28(2):189 270–273 • AUG 2021 IRCF REPTILES & AMPHIBIANS CONSERVATION AND NATURAL HISTORY TABLE OF CONTENTS FirstFEATURE ARTICLESRecord of Interspecific Amplexus . Chasing Bullsnakes (Pituophis catenifer sayi) in Wisconsin: betweenOn the Road to Understandinga Himalayan the Ecology and Conservation of the Toad, Midwest’s Giant Serpent Duttaphrynus ...................... Joshua M. Kapfer 190 . The Shared History of Treeboas (Corallus grenadensis) and Humans on Grenada: himalayanusA Hypothetical Excursion ............................................................................................................................ (Bufonidae), and a RobertHimalayan W. Henderson 198 RESEARCH ARTICLES Paa. TheFrog, Texas Horned Lizard Nanorana in Central and Western Texas ....................... vicina Emily Henry, Jason(Dicroglossidae), Brewer, Krista Mougey, and Gad Perry 204 . The Knight Anole (Anolis equestris) in Florida from ............................................. the BrianWestern J. Camposano, Kenneth L. Krysko, Himalaya Kevin M. Enge, Ellen M. Donlan, andof Michael India Granatosky 212 CONSERVATION ALERT . World’s Mammals in Crisis ...............................................................................................................................V. Jithin, Sanul Kumar, and Abhijit Das .............................. 220 . More Than Mammals ..................................................................................................................................................................... -
The IUCN Amphibians Initiative: a Record of the 2001-2008 Amphibian Assessment Efforts for the IUCN Red List
The IUCN Amphibians Initiative: A record of the 2001-2008 amphibian assessment efforts for the IUCN Red List Contents Introduction ..................................................................................................................................... 4 Amphibians on the IUCN Red List - Home Page ................................................................................ 5 Assessment process ......................................................................................................................... 6 Partners ................................................................................................................................................................. 6 The Central Coordinating Team ............................................................................................................................ 6 The IUCN/SSC – CI/CABS Biodiversity Assessment Unit........................................................................................ 6 An Introduction to Amphibians ................................................................................................................................. 7 Assessment methods ................................................................................................................................................ 7 1. Data Collection .................................................................................................................................................. 8 2. Data Review ................................................................................................................................................... -
Note on Range Extension, Local Knowledge and Conservation Status
RESEARCH ARTICLE The Herpetological Bulletin 133, 2015: 1-6 Note on range extension, local knowledge and conservation status of the Critically Endangered Anamalai gliding frog Rhacophorus pseudomalabaricus in the Cardamom Hills of Western Ghats, India MONICA HARPALANI1, SETHU PARVATHY1, ARUN KANAGAVEL1*, LILLY MARGARET ELUVATHINGAL2 & BENJAMIN TAPLEY3 1 Conservation Research Group, St. Albert’s College, Banerji Road, Kochi 682 018, India 2 Florida International University, Miami, Florida, 33199, USA 3 Zoological Society of London, Regent’s Park, London, NW1 RRY, United Kingdom, *Corresponding author email: [email protected] ABSTRACT - Rhacophorus pseudomalabaricus is a Critically Endangered, range-restricted frog found in the southern Western Ghats of India. We report new distribution records outside the protected area network in the Cardamom Hills of Kerala State through direct sightings and local ecological knowledge. These records increase the distribution by 12 km to the south-east of its currently known range and increase the altitudinal range of the species to 1600 m asl. We present a preliminary call analysis of the species that is distinct from the call of its nearest congener R. malabaricus. Foam nests, tadpoles and metamorphs were sighted in agricultural land suggesting the importance of these landscapes for breeding. Breeding continues into the month of November extending the known length of its breeding season. Breeding occurred in highly disturbed areas and oviposition sites varied according to the vegetation around breeding sites and included the use of non-native plants. This suggests the need to exercise caution while conducting habitat restoration programs that involve a standard removal of non-native plants. The IUCN Red List status for this species could be revised from ‘Critically Endangered’ to ‘Endangered’ in light of our findings. -
The Postembryonic Skeletal Ontogeny of the Indian Purple Frog, Nasikabatrachus Sahyadrensis (Anura: Nasikabatrachidae)
Biology Faculty Publications Biology 3-2016 From Clinging to Digging: The oP stembryonic Skeletal Ontogeny of the Indian Purple Frog, Nasikabatrachus sahyadrensis (Anura: Nasikabatrachidae) Gayani Senevirathne University of Peradeniya Ashish Thomas University of Delhi Ryan R. Kerney Gettysburg College See next page for additional authors Follow this and additional works at: https://cupola.gettysburg.edu/biofac Part of the Animal Sciences Commons, and the Biology Commons Share feedback about the accessibility of this item. Senevirathne, Gayani, Ashish Thomas, Ryan R. Kerney, James Hanken, S.D. Biju, and Madhava Meegaskumbura. "From Clinging to Digging: The osP tembryonic Skeletal Ontogeny of the Indian Purple Frog, Nasikabatrachus sahyadrensis (Anura: Nasikabatrachidae)." PLoS ONE 11.3 (March 2016), e0151114. This open access article is brought to you by The uC pola: Scholarship at Gettysburg College. It has been accepted for inclusion by an authorized administrator of The uC pola. For more information, please contact [email protected]. From Clinging to Digging: The oP stembryonic Skeletal Ontogeny of the Indian Purple Frog, Nasikabatrachus sahyadrensis (Anura: Nasikabatrachidae) Abstract The ndI ian Purple frog, Nasikabatrachus sahyadrensis, occupies a basal phylogenetic position among neobatrachian anurans and has a very unusual life history. Tadpoles have a large ventral oral sucker, which they use to cling to rocks in torrents, whereas metamorphs possess adaptations for life underground. The developmental changes that underlie these shifts in ah bits and habitats, and especially the internal remodeling of the cranial and postcranial skeleton, are unknown. Using a nearly complete metamorphic series from free- living larva to metamorph, we describe the postembryonic skeletal ontogeny of this ancient and unique monotypic lineage. -
(Amphibia: Anura) in Parambikulam Tiger Reserve, Western Ghats, Kerala, India
JoTT SHORT COMMUNI C ATION 4(13): 3205–3214 Western Ghats Special Series Diversity of rhacophorids (Amphibia: Anura) in Parambikulam Tiger Reserve, Western Ghats, Kerala, India K.M. Jobin 1 & P.O. Nameer 2 1,2 Department of Wildlife Sciences, College of Forestry, Kerala Agricultural University (KAU), Vellanikkara, Kerala 680656, India Email: 1 [email protected], 2 [email protected] (corresponding author) Abstract: A study on the rhacophorids of Parambikulam Tiger Western Ghats, one of the 34 biodiversity hotspots Reserve was conducted from April to July 2011. Eleven species of rhacophorids in four genera—Rhacophorus (three species), of the World (Myers et al. 2000; Conservation Polypedates (one species), Pseudophilautus (one species) and International 2005) is exceptionally rich in amphibian Raorchestes (six species)—were recorded. Distribution, natural history and biological information is provided including some diversity. During the last one and half decades there recommendations for changes in the IUCN conservation status has been an outburst of publications, including the of the rhacophorids of Western Ghats have been proposed in description of several new species to science from the the paper. family Rhacophoridae (Das & Ravichandran 1998; Keywords: IUCN Red Listing, Kerala, Parambikulam Tiger Vasudevan & Dutta 2000; Bossuyt 2002; Kuramoto & Reserve, Rhacophoridae, Western Ghats. Joshy 2003; Biju & Bossuyt 2005a,b; Biju & Bossuyt 2006a; Das & Dutta 2006; Gururaja et al. 2007; Biju & Bossuyt 2009; Biju et al. 2010; Zachariah et al. 2011a,b). Date of publication (online): 26 October 2012 Date of publication (print): 26 October 2012 About 68 species of frogs were described from India in ISSN 0974-7907 (online) | 0974-7893 (print) the last one decade of which 32 species, nearly 50%, Editor: Sanjay Molur were members of the family Rhacophoridae (Dinesh et al. -
3Systematics and Diversity of Extant Amphibians
Systematics and Diversity of 3 Extant Amphibians he three extant lissamphibian lineages (hereafter amples of classic systematics papers. We present widely referred to by the more common term amphibians) used common names of groups in addition to scientifi c Tare descendants of a common ancestor that lived names, noting also that herpetologists colloquially refer during (or soon after) the Late Carboniferous. Since the to most clades by their scientifi c name (e.g., ranids, am- three lineages diverged, each has evolved unique fea- bystomatids, typhlonectids). tures that defi ne the group; however, salamanders, frogs, A total of 7,303 species of amphibians are recognized and caecelians also share many traits that are evidence and new species—primarily tropical frogs and salaman- of their common ancestry. Two of the most defi nitive of ders—continue to be described. Frogs are far more di- these traits are: verse than salamanders and caecelians combined; more than 6,400 (~88%) of extant amphibian species are frogs, 1. Nearly all amphibians have complex life histories. almost 25% of which have been described in the past Most species undergo metamorphosis from an 15 years. Salamanders comprise more than 660 species, aquatic larva to a terrestrial adult, and even spe- and there are 200 species of caecilians. Amphibian diver- cies that lay terrestrial eggs require moist nest sity is not evenly distributed within families. For example, sites to prevent desiccation. Thus, regardless of more than 65% of extant salamanders are in the family the habitat of the adult, all species of amphibians Plethodontidae, and more than 50% of all frogs are in just are fundamentally tied to water.