Influence of habitat parameters on common skipper frog (Euphlyctis cyanophlyctis) in Chittagong

Abstract

Habitat selection of common skipper frog [Euphlyctis cyanophlyctis (Schneider, 1799)] was studied by a sampling (covering all the three seasons) of data collection on six abiotic (size and depth of water body, air and water temperature, dissolved oxygen and free carbon dioxide) and three biotic (plant species richness, zooplankton species richness and zooplankton density) factors of three ponds in Chittagong, Bangladesh. The discriminant analysis, cluster analysis and paired t-test of total data revealed that the three water bodies functioned as separate systems. Of the nine factors, only four (AT, WT, FCO2 and Zp_den) had individual significant influence on the frog at least at one of the ponds. However, the maximum R 2 value (0.712, p < 0.001) indicates that at least some important factors were not included in the investigation.

Temporary Water Holes May Benefit the Breeding of the Common Skipper Frog Euphlyctis cyanophlyctis (Anura: Dicroglossidae)

“…In the current study, the population increase in early summer was due to the tendency of this frog to flock to the permanent water bodies after the less active winter season and the first showers of the year, cf. [24]. Our data support the conclusion that the depth of the water in early summer is comparatively low, and the adults of this species prefer the littoral zone over deep water [37].…”

“…The population dynamics of this freshwater skipper frog is unknown [15]. A wide fluctuation in the population of the common skipper frog with a lack of sightings was recorded in seven different water habitats in southeastern Bangladesh in 2013 [23] and three in 2014 [24]. Another study in 2015 recorded similar absences and wide population fluctuations of this species (0-51 individuals/acre) in three ponds in the same area [25].…”

Euphlyctis Cyanophlyctis Schneider, 1799 (Amphibia: Dicroglossidae) in district Lower Dir, Pakistan

“…Euphlyctis cyanophlyctis is a common species and it remains active almost throughout the year, whereas other species are active only during summer, from March to September. Solitary Euphlyctis cyanophlyctis individuals make calls from permanent water bodies almost all over the year, although actual breeding activity is initiated in early summer when water temperature rises to 10-15'C (Chowdhury et al, 2016).…”