The Occurrence of Polymely and Polydactyly in Natural Populations of Anurans of the USSR

1986 ◽  
Vol 7 (3) ◽  
pp. 205-216 ◽  
Author(s):  
Leo J. Borkin ◽  
M.M. Pikulik
Keyword(s):  
Natural Populations ◽  
Rana Esculenta ◽  
Bufo Bufo ◽  
Species Specificity ◽  
Rana Arvalis ◽  
X Ray ◽  
Toad Bufo ◽  
Toad Bufo Bufo ◽  
Rana Lessonae ◽  
Ussr Fauna

AbstractVarious cases of isolated and mass polymely and polydactyly in anurans of the USSR fauna are summarized. Mass polydactylies in frogs Rana arvalis arvalis and Rana lessonae-Rana esculenta as well as in toad Bufo bufo bufo are reported. Classiication of polydactyly types based on X-ray analysis is proposed. Species-specificity and lozalized appearance of mass polydactyly factor(s) are discussed.

scholarly journals Phenotypic selection in common toad (Bufo bufo)

2007 ◽  
Vol 59 (4) ◽  
pp. 327-333 ◽  
Author(s):  
Dragana Cvetkovic ◽  
Natasa Tomasevic ◽  
I. Aleksic ◽  
Andjelka Crnobrnja-Isailovic
Keyword(s):  
Natural Populations ◽  
Phenotypic Selection ◽  
Bufo Bufo ◽  
Leg Length ◽  
Regression Approach ◽  
Selection For ◽  
Correlated Characters ◽  
Toad Bufo ◽  
Toad Bufo Bufo ◽  
Selection Differentials

One of the most important problems for evolutionary biologists is to investigate the patterns and strength of phenotypic selection acting on quantitative traits in natural populations. Measurement of selection is complicated by the presence of correlations between characters; selection on a particular trait produces not only a direct effect, but indirect effects as well. Despite the growing body of phenotypic selection studies in a variety of taxa, studies on amphibians are still sparse. The aim of this study was to estimate patterns and strength of selection acting on a set of correlated characters in a natural population of Bufo bufo from the vicinity of Belgrade, Serbia. Morphological traits (body length, fore- and hind leg length) were measured, while fitness was assayed as fecundity and gonad weight for females and males, respec?tively. The regression approach was used to estimate selection differentials and gradients. Selection patterns differed between the sexes - linear selection differentials showed significant total directional selection for body size in females, but not in males. In males, differentials were significant for both fore- and hind leg lengths. Sample size did not permit identification of significant nonlinear (quadratic) selection.

Variation in Chemical Defense Among Natural Populations of Common Toad, Bufo bufo, Tadpoles: the Role of Environmental Factors

2016 ◽  
Vol 42 (4) ◽  
pp. 329-338 ◽  
Author(s):  
Veronika Bókony ◽  
Ágnes M. Móricz ◽  
Zsófia Tóth ◽  
Zoltán Gál ◽  
Anikó Kurali ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Chemical Defense ◽  
Natural Populations ◽  
Bufo Bufo ◽  
Common Toad ◽  
Toad Bufo ◽  
Toad Bufo Bufo

Bufadienolides from the Eggs of the Toad Bufo bufo gargarizans and Their Antimelanoma Activities

2021 ◽  
Author(s):  
Shi-wen Zhou ◽  
Jing-yu Quan ◽  
Zi-wei Li ◽  
Ge Ye ◽  
Zhuo Shang ◽  
...  
Keyword(s):  
Bufo Bufo ◽  
Bufo Gargarizans ◽  
Toad Bufo ◽  
Toad Bufo Bufo

Physiological and molecular mechanisms of inorganic phosphate handling in the toad Bufo bufo

2006 ◽  
Vol 454 (1) ◽  
pp. 101-113 ◽  
Author(s):  
Nadja Møbjerg ◽  
Andreas Werner ◽  
Sofie M. Hansen ◽  
Ivana Novak
Keyword(s):  
Inorganic Phosphate ◽  
Molecular Mechanisms ◽  
Bufo Bufo ◽  
Toad Bufo ◽  
Toad Bufo Bufo
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