Larvae of the blow fly Caiusa testacea (Diptera: Calliphoridae) as egg predators of Polypedates cruciger Blyth, 1852 (Amphibia: Anura: Rhacophoridae)

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W.G.D. Chathuranga
https://orcid.org/0000-0001-9835-0540
K. Kariyawasam
https://orcid.org/0000-0002-7869-8133
Anslem de Silva
W.A.Priyanka P. de Silva
https://orcid.org/0000-0002-6811-7227

Abstract

We investigated the impact of dipteran predators on eggs in foam nests of the Common Hour-glass Tree Frog Polypedates cruciger Blyth, 1852 (Anura: Rhacophoridae) in central Sri Lanka.  Foam nests (n=24) of P. cruciger were examined at their natural breeding habitats and infected (n=8) and uninfected spawns (n=16) were identified.  Emerging tadpoles were collected in a water container hung under each spawn and the average number of tadpoles (N) hatched from infected spawns (N=0) was compared with that of uninfected spawns (N=354 ± 67).  Three severely infected spawns were brought to the laboratory and the fly larvae were reared until they metamorphosed to adults.  Morphological and molecular identification of the flies confirmed them as belonging to Caiusa testacea Senior-White, 1923 of the family Calliphoridae.  The infected spawns were completely destroyed and an estimated average of 400 P. cruciger eggs per spawn were lost.  The results revealed a high impact of Caiusa testacea on egg and embryo mortality of P. cruciger.

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Chathuranga, W., Kariyawasam, K., de Silva, A. and de Silva, W.P. 2020. Larvae of the blow fly Caiusa testacea (Diptera: Calliphoridae) as egg predators of Polypedates cruciger Blyth, 1852 (Amphibia: Anura: Rhacophoridae). Journal of Threatened Taxa. 12, 17 (Dec. 2020), 17374–17379. DOI:https://doi.org/10.11609/jott.5740.12.17.17374-17379.
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References

Banerjee, A., K. Rognes & D. Whitmore (2018). Two species of Caiusa Surcouf (Diptera: Calliphoridae) new to India, with data on larval behavior and morphology. Biodiversity Data Journal 6: e27736. https://doi.org/10.3897/BDJ.6.e27736

Blaustein, A.R., S.S. Gervasi, P.T. Johnson, J.T. Hoverman, L.K. Belden, P.W. Bradley & G.Y. Xie (2012). Ecophysiology meets conservation: understanding the role of disease in amphibian population declines. Philosophical transactions of the Royal Society of London. Series B, Biological sciences 367(1596): 1688–1707. https://doi.org/10.1098/rstb.2012.0011

Chivers, D., J. Kiesecker, A. Marco, J. De Vito, M. Anderson & A. Blaustein (2001). Predator-Induced Life History Changes in Amphibians: Egg Predation Induces Hatching. Oikos 92(1): 135–142. http://www.jstor.org/stable/3547689

De Silva, A. (1999). New amphibian parasites from Sri Lanka. Froglog 31: 2.

De Silva, A. (2001a). Some aquatic insects: predators of anuran larvae at Horton Plains National Park. The Amphibia of Sri Lanka: Recent Research. Lyriocephalus Special Edition 4 (1-2): 145–146.

De Silva, A. (2001b). Some insect predators of anuran larvae observed in Gampola, Sri Lanka. The Amphibia of Sri Lanka: Recent Research. Lyriocephalus Special Edition 4 (1-2): 147–149.

De Silva, A. (2011). Some observations of malformation, eye disease, parasitic and viral infection, and the effects of agrochemicals on amphibians in Sri Lanka. FrogLog 97: 19–20.

De Silva, A. & P. De Silva (2000). Some observations on the spawn and larval success of Polypedates cruciger Blyth 1852 in Gampola Sri Lanka. Lyriocephalus Special Edition 4 (1–2): 28–35.

De Silva, S. & N. Wijayathilaka (2019). Bioacoustics of Sri Lankan Amphibians: a Review of Current Knowledge and Conservation Significance. Journal of Tropical Forest and Environment 9(1): 1–6. https://doi.org/10.31357/jtfe.v9i1.3944

Downie, J.R. (1990). Functions of the foam in foam-nesting leptodactylids: anti-predator effects of Physalaemus pustulosus foam. Herpetology Journal 1: 501–503.

Jayawardena, U.A., R.S. Rajakaruna, A.N. Navaratne & P.H. Amerasinghe (2010). Monostome cercariae induced malformations in amphibians: effect of infection at the pre-limb-bud stage tadpoles of Polypedates cruciger Blyth. Journal of National Science Foundation of Sri Lanka 38(4): 241–248. http://doi.org/10.4038/jnsfsr.v38i4.2651

Hayes, T.B., P. Falso, S. Gallipeau & M. Stice (2010). The cause of global amphibian declines: a developmental endocrinologist’s perspective. The Journal of experimental biology 213(6): 921–933. https://doi.org/10.1242/jeb.040865

Kiesecker, J.M. (2003). Invasive species as a global problem: toward understanding the worldwide decline of amphibians, pp. 113–126. In: Semlitsch, R.D. (eds.). Amphibian Conservation. Smithsonian Institution Press, Washington, D.C.

Kumar, S., G. Stecher & K. Tamura (2016). MEGA7: Molecular Evolutionary Genetics Analysis version 7.0 for bigger datasets. Molecular Biology and Evolution 33: 1870–1874.

Li, Y., J.M. Cohen & J.R. Rohr (2013). Review and synthesis of the effects of climate change on amphibians. Integrative Zoology 8: 145–161. https://doi.org/10.1111/1749-4877.12001

Lin, S.S. & K.Y. Lue (2000). The sources of amphibian embryo mortality. Biological Bulletin of National Taiwan Normal University 35: 1–11.

Lin, S.S., C.H. Kuo & K.Y. Lue (2000). Oviposition behavior and host selection of the frog fly, Caiusa coomani (Diptera: Calliphoridae). Chinese Journal of Entomology 20: 281–292.

Lingnau, R. & M. Di-Bernardo (2006). Predation on foam nests of two leptodactylid frogs by Solenopsis sp. (Hymenoptera, Formicidae) and Liophis miliaris (Serpentes, Colubridae). Biociencias 14(2): 223–224.

Livak, K.J. (1984). Organization and mapping of a sequence on the Drosophila melanogaster X and Y chromosomes that are transcribed during spermatogenesis. Journal of Genetics 107: 611–634.

Manamendra-Arachchi, K. & M. Meegaskumbura (2012). The taxonomy and conservation status of amphibians in Sri Lanka, pp. 88–98. In: Weerakoon, D.K. & S. Wijesundara (eds.). The National Red List 2012 of Sri Lanka: Conservation Status of the Fauna and Flora. Ministry of Environment, Colombo, Sri Lanka, 451pp.

Meegaskumbura, M., S. Meegaskumbura, G. Bowatte, K. Manamendra-Arachchi, R. Pethiyagoda, J. Hanken & C. Schneider (2010). Taruga (Anura: Rhacophoridae), a new genus of foam-nesting tree frogs endemic to Sri Lanka. Ceylon Journal of Science 39(2): 75–94. https://doi.org/10.4038/cjsbs.v39i2.2995

Menin, M. & A.A. Giaretta (2003). Predation on foam nests of leptodactyline frogs (Anura: Leptodactylidae) by larvae of Beckeriella niger (Diptera: Ephydridae). Journal of Zoology 261: 239–243. https://doi.org/10.1017/S0952836903004138

Morgan-Davies, A.M. (1958). Some notes on the reproduction, metamorphosis, and ecology of a Ceylonese tree frog Rhacophorus cruciger cruciger (Blyth, 1852). Journal of the Bombay Natural History Society 55: 11–16.

Nolan, D.V., S. Carpenter, J. Barber, P.S. Mellor, J.F. Dallas, A.J.L. Mordue & S.B. Piertney (2007). Rapid diagnostic PCR assays for members of the Culicoides obsoletus and Culicoides pulicaris species complexes, implicated vectors of bluetongue virus in Europe. Veterinary Microbiology 124(1–2): 82–94. https://doi.org/10.1016/j.vetmic.2007.03.019

Rajakaruna, R.S., V.A.M.P.K. Samarawickrama & K.B. Ranawana (2007). Amphibian declines and possible etiologies: the case for Sri Lanka. Journal of National Science Foundation of Sri Lanka 35(1): 3–8. http://doi.org/10.4038/jnsfsr.v35i1.3655

Rödel, M.O., F. Range, J.T. Seppanen & R. Noe (2002). Caviar in the Rain Forest: Monkeys as Frog-Spawn Predators in Tai National Park, Ivory Coast. Journal of Tropical Ecology 18(2): 289–294. https://doi.org/10.1017/S0266467402002195

Rognes, K. (2009). Revision of the Oriental species of the Bengalia peuhi species-group (Diptera, Calliphoridae). Zootaxa 2251: 1–76. https://doi.org/10.11646/ZOOTAXA.2251.1.1

Rognes, K. (2015). Revision of the frog fly genus Caiusa Surcouf, 1920 (Diptera, Calliphoridae), with a note on the identity of Plinthomyia emimelania Rondani, 1875. Zootaxa. 3952: 1. https://doi.org/10.11646/zootaxa.3952.1.1

Simon, C., F. Frati, A. Beckenbach, B. Crespi, H. Liu & P. Flook (1994). Evolution, weighting, and phylogenetic utility of mitochondrial gene sequences and a compilation of conserved polymerase chain reaction primers. Annual Review of Entomology 87(6): 651–701. https://doi.org/10.1093/aesa/87.6.651

Vonesh, J.R. (2000). Dipteran predation on the arboreal eggs of four Hyperolius frog species in western Uganda. Copeia 2000(2): 560–566. https://doi.org/10.1643/0045-8511(2000)000[0560:DPOTAE]2.0