Reproductive Ecology of Rhinophrynus dorsalis (Anura: Rhinophrynidae) in México

Hughes, Daniel F.; Wylie, Daniel B.

doi:10.1670/20-035

Cited by 3 publications

(2 citation statements)

References 54 publications

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“…Female-biased sexual size dimorphism is common among anurans and has traditionally been attributed to fecundity selection, favoring larger females that can lay more or larger eggs than small females (Han & Fu, 2013;Nali et al, 2014). This hypothesis has been supported by many studies which reported an increase in egg size with body size of the female for many anurans (Başkale et al, 2011;Hughes & Wylie, 2021;Pereira & Maneyro, 2012;Prado & Haddad, 2005;Zhao et al, 2017). Furthermore, sex differences in growth rates and age structures within populations can lead to sexual size dimorphism (Liao & Lu, 2012;Monnet & Cherry, 2002).…”

Section: Discussionmentioning

confidence: 96%

Age structure and body size of two Tibetan toad (Bufo tibetanus) populations from different elevations in China

Xu,

Wang,

Liu

et al. 2024

Ecology and Evolution

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Understanding how age and body size vary across elevations can provide insights into the evolution of life‐history traits in animals. In the present study, we compared the demographic (using skeletochronology) and morphological traits of the Tibetan toad (Bufo tibetanus) between two populations from different elevational habitats (2650 vs. 3930 m). We found that (1) the mean age and body size of females were significantly greater than those of males in both populations; (2) both sexes of toads from the higher elevation tended to be significantly older in age and larger in body size; (3) there was a significant positive relationship between age and body size within each sex of the toad at both elevations; and (4) growth rates varied between the two populations, with the higher rate observed in the lower‐elevation population. Our results suggested that factors other than age, such as elevation‐associated temperature, influence the observed differences in body size between the two populations. Future research at a broader range of elevations should focus on these factors and evaluate their influence on animal growth patterns.

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Section: Discussionmentioning

confidence: 96%

Age structure and body size of two Tibetan toad (Bufo tibetanus) populations from different elevations in China

Xu,

Wang,

Liu

et al. 2024

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…In the African genus Hemisus , for example, the hands and forearms of males seem to secrete a sticky secretion ( Rödel, 2000 ) that may facilitate the amplexus. Other cases such as the North and Central American species Rhinophrynus dorsalis ( Hughes and Wylie, 2021 ) and the Australian Myobatrachus gouldii ( Roberts, 1981 ; Vertucci et al., 2017 ) should be investigated for the possible presence of glands in their skin with adhesive function. It calls attention that all anurans mentioned above, including Dermatonotus muelleri , are fossorial (or semi-fossorial) and live in dry environments.…”

Section: Discussionmentioning

confidence: 99%