Showing papers on "Bufo melanostictus published in 2001"

Notes on cranial-ridged toads of Pakistan and description of a new subspecies (Amphibia: Bufonidae)

Abstract: The southeast Asian toad Bufo melanostictus has recently been found to be confined to Siwaliks of Pakistan. Morphological analysis of this toad from Pakistan distinguishes it from the southeast Asian toads, thus validating it as a distinct subspecies.

Aspects of the Life History and Ecology of the Coal Skink, Eumeces anthracinus, in Georgia

Abstract: MINTON, S. A. 1968. The fate of amphibian and reptiles in a suburban area. J. Herpetol. 2:113-116. PEARSON, P. G. 1955. Population ecology of the spadefoot toad, Scaphiopus h. holbrookii (Harlan). Ecol. Monogr. 25:233-267. PRADHAM, P. K., AND S. DASGUPTA. 1991. Effects of dimethoate on acid and alkaline phosphatase activity in some metabolically active tissues of male toad Bufo melanostictus. Geobios 18:59-63. ROBINSON, A. 1995. Small and seasonal does not mean insignificant: why it's worth standing up for tiny and temporary wetlands. J. Soil Water Conserv. 1995:586-590.

Isolation, purification and partial chemical characterization of a lethal factor from common indian toad (Bufo melanostictus, Schneider) skin extract.

Abstract: Indian toad (Bufo melanostictus, Schneider) skin extract (TSE) is pharmacologically potent and probably contains several bioactive compounds [Das et. al., Indian J Pharmacol, 28 (1996) 72]. A lethal factor was isolated and purified by neutral alumina column chromatography followed by HPLC. Spectroscopic (UV, IR, FAB-MASS) study indicated that the lethal factor (TSE-LF) was a 254 Da long chain compound with carbonyl, hydroxyl and ester as functional groups. LD50 of TSE-LF was found to be 3.5 mg/kg (iv). Biological study showed that TSE-LF possesses hypotensive, cardiotoxic, neurotoxic activity and produced death by apnoea in experimental animal. Cyproheptadine antagonised TSE-LF induced contraction of isolated smooth muscle indicating involvement of histamine/serotonin receptors. TSE-LF induced neurotoxic action on chick biventer cervices was mediated through Ca2+ ion.

A report on the puddle (bleating) frog occidozyga lima (gravenhorst) from the teknaf peninsula, bangladesh, with notes on the presence of other vertebrates

Abstract: On the basis of a six-day survey of southeastern Bangladesh Occidozyga lima appeared to be a common species in the Teknaf Peninsula. The most common amphibians of the region are the Cricket Frog Limnonectes limnocharis, Skipping Frog Euphlyctis cyanophlyctis, Ornate Narrow-mouthed Frog Microhyla ornata, Indian Bull Frog Hoplobatrachus tigerinus and Common Toad Bufo melanostictus. Two species of tree frogs Polypedates leucomystax and Polypedates maculatus are also common.