Understanding habitat requirements for captive breeding and conservation of the Goliath frog in Cameroon

Authors

  • Nchang Chrysanthus Department of Forestry and Wildlife Technology, College of Technology, University of Bamenda, Cameroon
  • Simon Awafor Tamungang Department of Forestry and Wildlife Technology, College of Technology, University of Bamenda, Cameroon
  • Patricia Bi Asanga Fai Department of Agricultural and Environmental Engineering,College of Technology,University of Bamenda

DOI:

https://doi.org/10.5281/zenodo.11123465

Keywords:

Biodiversity, Ecology, Enhanced breeding, Habitat characteristics

Abstract

The Goliath frog came into prominence in the early 19th century, and till date, recent studies show that the ecology is still understudied. The aim of this study is to determine major ecological and ethological patterns and their contributions to the abundance and breeding activity of the Goliath Frog. A descriptive ecological study was used in which data was collected on the ecological variables and the outcome (presence of frogs), used to describe associations (habitat characteristics) important in conservation and breeding. A non-probability purposive sampling technique was used, where villages included in the study were chosen. Information on ecological variables such as wind speed, precipitation and humidity was obtained on a daily basis using the weather App (weather.com/weather) installed on phones. Reproductive activities were estimated based on the signs of the presence of the frogs within the reproductive months such as nesting patterns. Data was analyzed using SPSS version 21.Findings indicate that at temperatures of 250C to 280C, the greatest numbers of frogs were seen (P < 0.001).An increase in humidity levels resulted in the least number of frogs seen (P ≤ 0.219); that wind speed is not a variable of interest for the presence of the Goliath frog (P = 0.747); that the number of frogs increased with an increase in the amount of rainfall recorded over successive days (P < 0.001). It was also seen that Goliath frogs mostly used water filled depressions encircled by rocks for nesting. The probability of finding frogs increased significantly in the thick bushes (CF = 2,6232; p < 0,001), the possibility of finding the frogs increased significantly within the dry season(CF = 2,8769; p <0,1).This indicates that Goliath frogs are nocturnal and frog species that prefer undisturbed forests. These results are expected to improve knowledge on husbandry needs important in conservation programs.

 

Author Biographies

Simon Awafor Tamungang, Department of Forestry and Wildlife Technology, College of Technology, University of Bamenda, Cameroon

Professor Simon A. Tamungang is a wildlife and conservation specialist,my academic supervisor and former Head of Department of Forestry and Wildlife Technology.

Patricia Bi Asanga Fai, Department of Agricultural and Environmental Engineering,College of Technology,University of Bamenda

Professor Patricia Bi Asanga Fai is my academic Co-Supervisor and head of division of academic affairs and records,and of the Department of Agricultural and Environmental Engineering of the College of Technology,University of Bamenda,Cameroon.

References

ACEFA. (2002). Restitution du diagnostic agraire dans le Moungo : Étude des systèmes de production dans le cadre de l’établissement de la situation de référence des exploitations familiales agropastorales au Cameroun, Région du Littoral, département Moungo, 93p.

Amiet, J.L. (2004). Conraua goliath. The IUCN red list of threatened species: [online].Available on: https: //www.iucnredlist.org/details/5263/0. (Accessed: 07/04/2016).

Blackburn, D.C., Nielsen, S.V., Barej, M.F., Doumbia, J., Hirschfeld, M., Kouamé, N.G., Lawson, D., Loader, S., Ofori-Boateng, C., Stanley, E.L., et al. (2020). Evolution of the African Slippery Frogs (Anura: Conraua), including the world’s largest living frog. Zoologica Scripta 49, 684–696. https://doi.org/10.1111/zsc.12447

Channing, A & Rödel, M.O. (2019). Field Guide to the Frogs & Other Amphibians of Africa. Cape Town, South Africa: Struik Nature.

Crump, M.L. & Scott, N.J. (1994).Visual encounter survey. In: Heyer, W.R.Donnelly, MA; MacDiarmid, R.W, Donnelly, Hayek, L.C, & Foster, M.S.(Eds) Measuring and monitoring Biological diversity, Standard Methods for Amphibians Smithsonian Institution Press, Washington D.C, 84-91.

Collins, J.P. & Crump, M.L. (2009). Extinction in our times. Oxford University Press, New York.

Fretey, T., Dewynter, M & Blanc, P. (2012). Illustrated identification key of the amphibians from Gabon and Mbini, herpetological review. 43(4), 666-667.

Gong, D & Mu, M. (2008). Behavioral observations and descriptions of the endangered knobby newt Tylototriton wenxianensis and their application in conservation. Asiatic Herpetological Research, 1, 31–38.

Gonwou, L.N & Ro¨del, M.O. (2008). The importance of frogs to the livelihood of the Bakossi people around Mount Manengouba, Cameroon, with special consideration of the hairy frog Trichobatrachus robustus. Salamandra, 44 (1), 23–34.

Gonwouo, N.L., Schäfer, M., Tsekané, S.J., Hirschfeld, M., Tchassem, F.A.M., Rödel, M.O. (2022). Goliath Frog (Conraua goliath) abundance in

relation to frog age, habitat, and human activity. Amphibian & Reptile Conservation 16(2), 104–119 (e319).

Hernandez, Briz. (1989). La Rana Cria Y Explotacion. ISBN 10: 8471142368 / ISBN 13: 9788471142368.

Institut Nationale de la statistique. (2015). Agence Régionale du Littoral.

IUCN criteria to perform rapid assessments of at-risk taxa. (2019a). Biodiversity and Conservation, 28, 863–883.

Ulloa, J.S., Aubin, T., Llusia, D. et al. (2019). Explosive breeding in tropical anurans: environmental triggers, community composition, and acoustic structure, Biodiversity Management Committees Ecology, 19, 28 https://doi.org/10.1186/s12898-019-0243-y.

Mills, N.E & Barnhart, M.C. (1999). Effects of hypoxia on embryonic development in two Ambystoma and two Rana species. Physiological and Biochemical Zoology, 72, 179-188.

MINADER. (2009). Rapport annuelle des activités dans le département du Moungo, 48 p.

MINFOF. (2006). Arrêté n°0649/MINFOF du 18 décembre portant répartition des espèces de la faune en groupe de protection et fixant les latitudes d’abattage par type de permis sportif de chasse.

Nguete, N.D., Wondji, C.S., Pone Wabo, J., Mpoame, M. (2019). Microfilariae infestation of goliath frogs (Conraua goliath) from Cameroon. PLOS ONE, 14(5), e0217539. https://doi.org/10.1371/journal.pone.0217539.

Nguiffo, N.D., Wabo, P.J., Mpoame, M. (2015). Gastro-intestinal helminths of goliath frogs (Conraua goliath) from the localities of Loum, Yabassi, and Nkondjock in the Littoral Region of Cameroon, Global Ecology and Conservation, 4,146–149.

Oseen, K.L & Wassersug, R.J. (2002). Environmental factors influencing calling in sympatric anurans. Oecologia 133 (4), 616–625.

Perret, J.L. (1966). Les amphibiens du Cameroun. Zoologische Jahrbücher (Systematik). 8, 289–464.

Sabater-Pi J. (1985). Contribution to the biology of the Giant Frog (Conraua goliath Boulenger, 1906). Amphibia-Reptilia, 6 (2), 143-153.

Schäfer, M., Tsekané, S.J., Tchassem, A.M., Drakulić, S., Kameni, M., Gonwouo, N.L and Rödel, M.O. (2019). Goliath frogs build nests for spawning – the reason for their gigantism? Journal of Natural History, 53, 1263-1276, https://doi.org/10.1080/00222933.2019.1642528.

Stuart, S.N., Chanson, J.S., Cox, N.A., Young, B.E., Rodrigues, A.S.L., Fischman, D.L., et al. (2004). Status and trends of amphibian declines and extinctions worldwide. Science, 306(5702), 1783–1786. https://doi.org/10.1126/science.1103538

Tagagoum, K.U. (2016). Connaissances écologiques locales et contribution à l’écologie de la grenouille goliath (Conraua goliath Boulenger, 1906) dans le département du Moungo, Région du littoral, Cameroun, Unpublished MSc thesis, Department of Animal Biology,Faculty of Science, University of Dschang,124p

Van Sluys, M., Kriger, K.M., Phillott, A., Campbell, R., Skerratt, L., Hero, J.M. (2008). Storage of samples at high temperatures reduces the amount of amphibian chytrid fungus Batrachochytrium dendrobatidis DNA detectable by PCR assay. Dis Aquat Organ, 81, 93–7. Pmid: 18924373.

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Published

2023-12-20

How to Cite

Chrysanthus, N., Tamungang, S. A., & Asanga Fai, P. B. (2023). Understanding habitat requirements for captive breeding and conservation of the Goliath frog in Cameroon. Sustainability and Biodiversity Conservation, 3(1), 63–77. https://doi.org/10.5281/zenodo.11123465