Case Report - International Journal of Pure and Applied Zoology (2022) Volume 10, Issue 12
A NEW RECORD OF DUTTAPHRYNUS MELANOSTICTUS (SCHNEIDER, 1799) (ANURA: BUFONIDAE) FROM VALPARAI, TAMIL NADU WITH NOTES ON NATURAL HISTORY
Department of Clinical Development Service Agency, Translational Health Science and Technology Institute Building (THSTI), Faridabad-121001, India
- Corresponding Author:
- Selvaraj Selvamurugan
Department of Clinical Development Service Agency
Apollo Research and Innovations (ARI) Madurai
Tamil Nadu -625020, India
Received: 14-Oct-2022, Manuscript No. IJPAZ-22-76817; Editor assigned: 17-Oct-2022, PreQC No.IJPAZ-22-76817(PQ); Reviewed: 31-Oct-2022, QC No. IJPAZ-22-76817; Revised: 04-Nov-2022, Manuscript No. IJPAZ-22-76817(R); Published: 11-Nov-2022, DOI: 10.35841/2320-9585-10.12.156
In this paper deals with the new record of Duttaphrynus melanostictus, the Common Indian Toad, from valparai, Tamilnadu with its distribution, Behavior, food & feeding, conservation status and threats.
New Record, Coimbatore District, Anura, Duttaphrynus melanostictus.
According to the Global Amphibian Assessment (GAA) almost one –third of the worlds 6,638 known amphibian species are listed as threatened or extinct. These declines are attributed to two major factors habitat loss and fungal disease with possible contributions from introduced species, climate change and pollution. Native to Asia, the Asian common toad Duttaphrynus melanostictus has a widespread distribution throughout the South East Asia region, from Pakistan through to southern China and south into Indonesia . While many Asian amphibians have suffered declines linked to widespread deforestation across this region . D. melanostictus has thrived, and is often found associated with human settlements and disturbed agricultural landscapes .
This commensal relationship with humans has facilitated the dispersal of D. melanostictus well beyond its native distribution. It has now established alien populations on several tropical islands, including Bali, where it was first recorded in the 1950s and has subsequently spread and established throughout Indonesia and New Guinea . Established alien populations are also found on the Andaman and Nicobar Islands, and the species has also established in Timor Leste around 1999 [5-7]. Outside of Asia D.melanostictus has established populations in the Maldives and recently in Madagascar [8,9].
The IUCN Red list of threatened species considered the conservation status of the species as Least Concern (IUCN). We report, The first time record in this Duttaphrynus melanostictus, Common Indian Toad, species at Valparai, Coimbatore district, Tamil Nadu state, India.
The Indian Toad species recorded from Near UPASI tea research institute at Valparai (Figure 1). Valparai is a Taluk and hill station in the Coimbatore district of Tamil Nadu, India. It consists of Anamalai Tiger Reserve and prior to that as Anaimalai Wildlife Sanctuary). It is located 7,502 feet (2,287m) above sea level on the Anaimalai Hills range of the Western Ghats.
The D. melanostictus is native to South and Southeast Asia and has already succeeded in invading multiple regions including Bali, New Guinea, Sulawesi, Timor-Leste, Australia and other islands, mostly between Sundaland and Wallacea [10,11] listed Parasitism by 41 different helminth parasites in D. melanostictus and parasitoids of dipterous larvae. Reported parasitism of 2 Haematozoan Parasites belonging different genus Trypanosoma bisalpurensis and Hepatozoon gangwarii on D. melanostictus from India . A new nematode species Rhabdias bengalensis belonging family Rhabdiasidae found in lungs of D. melanostictus reported from West Bengal, India First report of leech parasitism in D . melanostictus by Tritetrabdella taiwana was from China. Recently, Here, we report the first time record of in this species D. melanostictus from valparai, Coimbatore district, Tamil Nadu state, India.
Tamil Nadu : valparai (present record) , Coimbatore district ,. India: Generally throughout [14,15]. Andaman & Nicobar Islands (introduced), Arunachal Pradesh, Assam, Bihar (Dhanbad dist., Valmiki Tiger Reserve, West Champaran dist.), Chandigarh, Delhi, Gujarat, Haryana, Himachal Pradesh, Jammu & Kashmir, Madhya Pradesh, Manipur, Meghalaya, Mizoram, Nagaland, Punjab, Rajasthan, Sikkim, Tamil Nadu (Nilgiris), Tripura, Uttarakhand (Chamoli, Dehra Dun, Haridwar, Pauri, Tehri, Uttarkashi; Almora, Nainital, Pithoragarh dists.; Corbett Tiger Reserve; Govind Pashu Vihar; Nanda Devi Biosphere Reserve; Rajaji Tiger Reserve), Uttar Pradesh, West Bengal.
Globally distributed: Bangladesh, Brunei Darussalam, Cambodia, China (including Hong Kong, Taiwan), Indonesia, Laos, Macao, Madagascar, Malaysia, Maldives, Myanmar, Nepal, Pakistan, Papua New Guinea, Philippines, Singapore, Sri Lanka, Thailand and Viet Nam.
Asian common toads are nocturnal; during the day adults will hide under rocks, leaf litter, logs, and human made structures (drains, garbage piles, and houses). The toads are slow moving and fairly timid. Asian common toads are insectivorous and are known to feed on many insect pests known to humans [19,20].
Food habits & feeding
Asian common toads are insectivorous although these toads are also know to be an opportunist and will feed on a variety of arthropods and even mollusks. An analysis of the stomach contents of multiple specimens of Asian common toads yielded arthropod orders such as earwigs, grasshoppers, crickets, weta, and locusts, true bugs, moths and butterflies, beetles, typical bugs, sawflies, wasps, bees and ants, termites, cockroaches, and mantids, true flies, centipedes, and millipedes. Though these toads are opportunistic feeders the insects that showed the greatest abundance in the stomach were sawflies, wasps, bees and ants, beetles and termites. This toad is feeds on insects that are known pests to human such mosquitoes and various crop pests.
Asian common toads are listed on the International Union for Conservation of Nature (IUCN) Red list as “Least Concern”. In the regions of the world that these toads have become naturalized, populations are on the rise. These toads are becoming increasingly common, although pesticide run off can become a detriment to them if it is not monitored. Study showed that exposure to small levels of an insecticide called diaznon resulted in almost 100% death of Asian common toads . This chemical is highly regulated by the United States and European Union, yet it is still used widely throughout the developing counties of Asia [22,23].
Study showed that exposure to small levels of an insecticide called diaznon resulted in almost 100% death of Asian common toads. This chemical is highly regulated by the United States and European Union, yet it is still used widely throughout the developing counties of Asia.
- Van Dijk, P.P., Iskandar, D., Lau, M.W.N., Huiqing, G., Baorong, G., Kuangyang, L., and Khan, M. S., 2004. Duttaphrynus melanostictus (errata version published in 2016). IUCN Red List of Threatened Species 2016.
- Rowley, J., Brown, R., Bain, R., Kusrini, M., Inger, R., Stuart, B., and Phimmachak, S., 2010. Impending conservation crisis for Southeast Asian amphibians. Biol. Lett., 6: 336-338.
- Wogan, G.O., Stuart, B.L., Iskandar, D.T., and McGuire, J.A., 2016. Deep genetic structure and ecological divergence in a widespread human commensal toad. Biol. Lett., 12: 20150807.
- Church, G., 1960. The invasion of bali by bufo melanostictus. Herpetologica., 16: 15-21.
- Kaiser, H., Carvalho, V.L., Ceballos, J., Freed, P., Heacox, S., Lester, B., and O’Shea, M., 2011. The herpetofauna of Timor-Leste: a first report. Zookeys., 109: 19.
- Trainor, C.R., 2009. Survey of a population of black-spined toad Bufo melanostictus in Timor-Leste: confirming identity, distribution, abundance and impacts of an invasive and toxic toad. Report by Charles Darwin University to AusAID, 52294: 46.
- O'Shea, M., Sanchez, C., Kathriner, A., Mecke, S., Carvalho, V.L., Ribeiro, A. V., and Kaiser, H., 2015. Herpetological diversity of Timor-Leste: updates and a review of species distributions. Asiat. Herpetol. Res., 6: 73-131.
- Kraus, F., 2009. Alien reptiles and amphibians: a scientific compendium and analysis. Dordrecht: Springer Netherlands. Springer. Sci. Business. Media., 4: 563.
- Mo, M., 2017. Asian Black-spined Toads (Duttaphrynus melanostictus) in Australia: An invasion worth avoiding. Reptil. Amphib., 24: 155-161.
- Licata, F., Ficetola, G.F., Freeman, K., Mahasoa, R.H., Ravololonarivo, V., Solofo Niaina Fidy, J.F., and Crottini, A., 2019. Abundance, distribution and spread of the invasive Asian toad Duttaphrynus melanostictus in eastern Madagascar. Biol. Invasions., 21: 1615-1626.
- Goldberg, S.R., Bursey, C.R., and Grismer, L.L., 2017. Nematodes of five species of bufonids (Anura: Bufonidae) from Peninsular Malaysia. Pac. Sci., 71: 367-375.
- Gupta, D.K., Gupta, N., and Gangwar, R., 2012. Infectivity of Bufo melanostictus (Amphibia: Bufonidae) to Two New Species of Haematozoan Parasites from Rohilkhand, India. Proc. Zool. Soc., 65: 22–32.
- Sou, S.K., Sow, K.K., and Nandi, A.P., 2019. Description of a New Species of Rhabdias Stiles and Hassall, 1905 (Nematoda, Rhabdiasidae) in Duttaphrynus melanostictus (Schneider, 1899) from West Bengal, India. Acta. Parasitol., 64: 171–175.
- Sharma, I., and Sidhu, A.K., 2016. Faunal Diversity of all Vertebrates (excluding Aves) of Himachal Pradesh. Biol. Foru., 8: 1-26.
- Dutta, S.K., 1997. Amphibians of India and Sri Lanka: (Checklist and Bibliography). Odyssey Publishing House. 342.
- Khan, M., 2000. Duttaphrynus melanostictus. AmphibiaWeb.
- Mathew, M., 1999. Studies on some aspects of the biology and ecology of common Indian Toad bufo melanostictus schneider (class amphibia: order anura).
- Sumanadasa, D.M., Wijesinghe, M.R., and Ratnasooriya, W.D., 2008. Effects of diazinon on larvae of the Asian common toad (Bufo melanostictus, Schneider 1799). Environ. Toxicol. Chem., 27: 2320-2325.
- Mogali, S.M., Saidapur, S.K., and Shanbhag, B.A., 2011. Levels of predation modulate antipredator defense behavior and metamorphic traits in the toad Bufo melanostictus. J. Herpetol., 45: 428-431.
- Saidapur, S.K., and Girish, S., 2001. Growth and metamorphosis of Bufo melanostictus tadpoles: effects of kinship and density. J. Herpetol., 35: 249-254.
- Lever, C., 2003. Naturalized reptiles and amphibians of the world. Oxford University Press on Demand.
- Beirne, C., Escolar, J., and Whitworth, A., 2009. Yachana Reserve Amphibian and Benthic Surveys. Amazon Phase Report, 47:171-180.
- Harper, B., Luukinen, B., Gervais, J.A., Buhl, K., and Stone, D., 2009. Diazinon technical fact sheet. National Pesticide Information Center, Oregon State University Extension Services.