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Hooroo, R. N. K.
- Breeding and Nesting Behaviour of Rhacophorus maximus (Anura:Rhacophoridae) in Meghalaya, North East India
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Authors
Affiliations
1 Department of Zoology, Shillong College, Shillong 793 003, IN
2 Department of Zoology, North Eastern Hill University, Shillong 793 022, IN
3 Nature Environment and Wildlife Society, Angul 759 123, IN
1 Department of Zoology, Shillong College, Shillong 793 003, IN
2 Department of Zoology, North Eastern Hill University, Shillong 793 022, IN
3 Nature Environment and Wildlife Society, Angul 759 123, IN
Source
Current Science, Vol 110, No 6 (2016), Pagination: 1102-1105Abstract
The present study deals with the breeding and nesting behaviour of Rhacophorus maximus at Cherrapunjee and Mawsynram, Meghalaya, North East India. Breeding activity of R. maximus occurred after the first few showers of rain and an increase in air temperature. The species breeds sporadically for a short period, which lasts for about 6-8 weeks during March and April. Amplexus took place on land as well as in water and lasted for several hours. Aggregations of male frogs making advertisement call at the breeding sites have been observed. Competition among the males to mate with the female frogs and at the same time trying to dislodge the amplecting pairs have also been observed. Multiple amplecting pairs are seen in the temporary rainfed pond at Mawsynram, which appeared to be a congenial breeding habitat during the peak of the breeding period. Both male and female frogs took active part in nest construction. The species constructs foam nests on diverse substrata such as aquatic vegetation about 2-3 cm above the water surface, on bare rocks near the water bodies and on earthen banks. The water temperature recorded during oviposition ranged from 20°C to 22.5°C, air temperature from 21.5°C to 26°C and relative humidity from 65% to 99%. The eggs are large, measuring 2 mm in diameter, unpigmented, white in colour and clutch size varies between 809 and 2059 with a mean of 1351.96 ± 83.07.Keywords
Aggregation, Amplecting Pairs, Breeding, Foam Nest, Rhacophorus maximus.References
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- Unique Breeding Activity and Oviposition in Annandale’s High-Altitude Tree Frog, Kurixalus naso (Annandale, 1912) in Meghalaya, North East India
Abstract Views :278 |
PDF Views:74
Authors
Affiliations
1 Department of Zoology, North Eastern Hill University, Shillong 793 022, IN
2 Nature Environment and Wildlife Society, Angul 759 123, IN
1 Department of Zoology, North Eastern Hill University, Shillong 793 022, IN
2 Nature Environment and Wildlife Society, Angul 759 123, IN
Source
Current Science, Vol 118, No 3 (2020), Pagination: 467-472Abstract
The present study highlights the unique characteristics of the breeding activity and oviposition of Annandale’s high-altitude tree frog, Kurixalus naso (Annandale, 1912) at Mawsynram, Meghalaya, North East India. After the cold, dry, winter months (September– January), the first rainfall in February triggers the onset of a short breeding activity of the species, which lasts for 3–4 weeks during February to March. The first shower causes an increase in soil moisture content and decrease in soil temperature. Immediately after the first showers, males make their advertisement calls, followed by females engaging in amplexus with the males and ovipositing in the moist soil. The females come only once to the breeding site and leave after mating; parental care is provided by the males. Multiple amplecting pairs at the breeding site are seen inside the burrows and some are observed to amplect in the open soil surface, lasting for 5–6 h. No aggregation and competition among the males is observed. The amplecting females lay eggs inside the excavated burrows and the males, using their hind limbs, expose the eggs by pushing them to the mouth of the burrowing hole. Sometimes, the females oviposit at the base of hollow tree trunks and occasionally in the open soil surface. The eggs are mixed with the soil and they resemble perhaps masquerade as seeds. Most frogs display a biphasic life cycle. However, K. naso shows a distinct non-aquatic oviposition with aquatic larva. Further, soil moisture content and temperature may support the development of embryos in open soil surfaces and burrows.Keywords
Amplexus, Breeding, Burrows, Kurixalus naso, Oviposition.References
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