Features of Reproductive Biology of the Caucasian Toad, Bufo Verrucosissimus in Karachay-Cherkessia

Afrin, Kirill A.; Кидов, А. А.; Matushkina, K.A.

doi:10.21685/2307-9150-2019-3-6

Cited by 2 publications

(2 citation statements)

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“…1. �ec�rds �f Bufo verrucosissimus in the N�rth�Western Ca�cas�s (K�zmin, 2012;Afrin, 2023). C��ecti�n p�ints �f anima�s �sed in the st�dy: 1 -Chern�rechye; 2 -Tretya ��ta; 3 -Karapyr; 4 -Zagedan.…”

Section: материал и методыmentioning

confidence: 99%

Age structure and growth of Bufo verrucosissimus (Amphibia, Anura, Bufonidae) in the Caucasian State Nature Biosphere Reserve (Russia) at the end of the XX century

Kidov,

Afrin,

Stepankova

et al. 2023

Nat. Conserv. Res.

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Bufo verrucosissimus is an endangered species in the Russian Federation. One of the largest protected areas where B. verrucosissimus is preserved is the Caucasian State Nature Biosphere Reserve. The paper presents data on age structure and growth of B. verrucosissimus collected in the Caucasian State Nature Biosphere Reserve in 1987–1990 and stored in the collection of Sochi National Park. The age of 16 females and 51 males was determined using the method of skeletochronology. The age of adult females was 6–10 years (on average 7.9 years), and males 2–9 years (on average 5.8 years). Females were statistically significantly superior to males in average age. In terms of body length, significant differences between males and females where noted in groups of seven- and ten-year-old animals. The body length of studied animals (60.8–116.4 mm for females and 61.2–86.3 mm for males) corresponds to the size of adult toads from other localities in the North Caucasus. Females grow evenly throughout their lives, while the growth of males slows down significantly after reaching puberty. Males were able to reach the maximum body length faster than females (the growth coefficient was 0.722 for males and 0.163 for females). According to the von Bertalanffy equation, the maximum possible body length was 130.9 mm for females and 74.6 mm for males.

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Section: материал и методыmentioning

confidence: 99%

Age structure and growth of Bufo verrucosissimus (Amphibia, Anura, Bufonidae) in the Caucasian State Nature Biosphere Reserve (Russia) at the end of the XX century

Kidov,

Afrin,

Stepankova

et al. 2023

Nat. Conserv. Res.

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“…To visualize growth curve, we also added a hypothetical individual to the dataset using the reference of Afrin et al (2019) under the given parameters:…”

Section: Skeletochronologymentioning

confidence: 99%

Morphological variability and age structure in a population of Bufo verrucosissimus (Anura: Bufonidae) from Artvin, Turkey

Dursun,

Özdemir

2022

Phyllomedusa

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We investigated morphological diversity (external body traits, coloration patterns and skin structure) and age structure in a population of Caucasian toad (Bufo verrucosissimus) from Lake Borçka Karagöl, situated in the vicinity of Artvin on the northeastern border of Turkey and Georgia. Age was determined using phalangeal skeletochronology. The external morphological variability was assessed using the linear measurement of 27 body-related characters and the photographs of each specimen. According to the results, the means of head length and head width were found significantly lower in Karagöl population as opposed to Caucasian populations, but average body size did not differ among all populations. Coloration and pattern features of the specimens from Karagöl were identical to those of Caucasia. Most of the females have brown tones and males are usually olive green and brown. The indiscrete elongated dark bands on parotoids did not extend behind the gland. PCA analysis confirmed a clear separation between the sexes and a high degree of female-biased sexual size dimorphism was determined based on the body size (SDI index: +0.41). The constructed Von Bertalanffy growth curve models yielded similar profiles in both sexes. Body size and age were significantly correlated in both models, but growth coefficient value was higher in males. Accordingly, the mean age of the Karagöl population is greater in both sexes, but the lifespan and maximum age are greater in Caucasus populations.

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Features of Reproductive Biology of the Caucasian Toad, Bufo Verrucosissimus in Karachay-Cherkessia

Cited by 2 publications

References 0 publications

Age structure and growth of Bufo verrucosissimus (Amphibia, Anura, Bufonidae) in the Caucasian State Nature Biosphere Reserve (Russia) at the end of the XX century

Age structure and growth of Bufo verrucosissimus (Amphibia, Anura, Bufonidae) in the Caucasian State Nature Biosphere Reserve (Russia) at the end of the XX century

Morphological variability and age structure in a population of Bufo verrucosissimus (Anura: Bufonidae) from Artvin, Turkey

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