Age structure and body size of two populations of the rice frog<i>Rana limnocharis</i>from different altitudes

Liao, Wen Bo; Lü, Xin; Shen, Yue Wu; Hu, Jun

doi:10.1080/11250001003639590

Cited by 37 publications

(18 citation statements)

References 42 publications

(65 reference statements)

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“…Previous studies showed that SSD in anurans can be explained by age differences between males and females [16,32,37-49]. Our results demonstrate a correlation between SSD and SAD across 39 species, identifying SAD as a main factor contributing to the extent of SSD across species.…”

Section: Discussionsupporting

confidence: 69%

Sexual size dimorphism in anurans fails to obey Rensch’s rule

et al. 2013

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BackgroundSexual size dimorphism (SSD) is related to ecology, behaviour and life history of organisms. Rensch’s rule states that SSD increases with overall body size in species where males are the larger sex, while decreasing with body size when females are larger. To test this rule, we analysed literature as well as own data on male and female body size in anurans (39 species and 17 genera). We also tested the hypothesis that SSD is largely a function of age difference between the sexes.ResultsOur data set encompassed 36 species with female-biased SSD, and three species with male-biased SSD. All considered species failed to support Rensch’s rule, also when the analyses were phylogenetically corrected. However, SSD was significantly correlated with Sexual Age Difference (SAD) across species. We also found a significant correlation between SSD contrasts and SAD contrasts.ConclusionsOur study suggests that Rensch’s rule does not accurately describe macroevolutionary patterns of SSD in anurans. That SAD can explain most of the variation in SSD among species when controlling for phylogenetic effects suggests that phylogeny is not responsible for the broad relationship between age and size across the sexes.

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Section: Discussionsupporting

confidence: 69%

Sexual size dimorphism in anurans fails to obey Rensch’s rule

et al. 2013

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“…The Asian grass frog (Fejervarya limnocharis) inhabits a wide range of habitats in China below an elevation of 2000 meters. The egg-laying period lasts from early April to September, during which males actively search for females and attract them with courtship calls (Fei & Ye, 2001;Liao et al, 2011). The activity and growth period of F. limnocharis is markedly shaped by environmental temperature and the growth season, which in turn is determined by altitude as well as latitude (Liao, 2013).…”

Section: Introductionmentioning

confidence: 99%

Brain size evolution in the frog Fejervarya limnocharis supports neither the cognitive buffer nor the expensive brain hypothesis

et al. 2016

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Variable environmental conditions affect brain size evolution. To explain inter‐ and intraspecific brain size variation among vertebrates, two adaptive hypotheses – the expensive brain hypothesis (EBH) and the cognitive buffer hypothesis (CBH) – have been proposed. The EBF proposes that relative brain size is reduced in animals that experience longer periods of low food availability in fluctuating environments. Alternatively, the CBH states that a major advantage of a relatively large brain is to enhance cognitive abilities in fluctuating environments. We found considerable variation in brain size and the sizes of brain structures in the Asian grass frog (Fejervarya limnocharis) among populations. Inconsistent with the predictions of the EBH and the CBH, individuals living in habitats with medium variation in temperatures and length of growth seasons at middle latitude and/or altitude had a relatively large brain, suggesting that environmental habitat‐induced energetic constraints do not play an important role in shaping brain size evolution. Moreover, we also detected a significant intersexual difference in telencephalon size. Specifically, none of relative size of brain structures was correlated with variation in temperature and growth season related to environmental habitats, although latitude strongly affected the relative sizes of telencephalon and cerebellum. Our findings decline both the EBH and the CBH to explain brain size variation in the Asian grass frog. Furthermore, our results also suggest the sex‐specificity of the environmental‐induced brain size evolution in adult frogs associated with reproductive behaviors and spawning site selection.

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“…Skeletochronology technique was successfully applied for femur bone of F. cancrivora, which improved the results that had been done by Kusrini and Alford (2006) for the same species. The success of the skeletochronology technique also proved in F. limnocharis (Liao et al 2011;Pancharatna and Deshpande 2003;Phadmacanty et al 2018) which is a close relative to F. cancrivora. The number of LAG compared with the length of SVL at the pre-adult stage, adult males and adult females showed accurate results with a strong correlation between the two parameters.…”

Section: Discussionmentioning

confidence: 85%

“…Bone parts that are commonly used in skeletochronological research are the phalanx bones (Eden et al 2007;Guarino and Eresmis 2008;Hasumi 2010;Liao and Lu 2010a;Liao and Lu 2010b;Liao et al 2011;Morrison et al 2004;Olgun et al 2005;Oromi et al 2012); but the femur can also be used (Castanet et al 1996;Kutrup et al 2005;Sinsch and Dehling 2017). However, Pancharatna and Deshpande (2003) reported that tibia and fibula bones can be used forskeletochronological research without any significant difference result in one individual frog.…”

Section: Introductionmentioning

confidence: 99%

Short Communication: Determination of the age of the Paddy Field Frog, Fejervarya cancrivora (Anura: Dicroglossidae) by using skeletochronology

Phadmacanty

Kurniati

2019

Biodiversitas

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Abstract. Phadmacanty NLPR, Kurniati H. 2019. Short Communication: Determination of the age of the Paddy Field Frog, Fejervarya cancrivora (Anura: Dicroglossidae) by using skeletochronology. Biodiversitas 20: 2739-2743. The age of 102 individuals of paddy field frog (Fejervarya cancrivora) from Karawang District, West Java, Indonesia was skeletochronological determined. Hematoxylinophilic lines interpreted as lines of arrested growth (LAG) were observed clearly in the femur bone suggesting that this technique can be used to estimate the age of the frog, although the level of accuracy is likely to be strongly influenced by external and internal factor. In general, age estimates look close to accuracy at mature age levels; which one LAG equals the age of the frog that has passed one year old. The age structure of F. cancrivora from a paddy field in Karawang District has the maximum age of five years in females and four years in males. In general, adult females were not significantly larger than adult males.

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Age structure and body size of two populations of the rice frogRana limnocharisfrom different altitudes

Cited by 37 publications

References 42 publications

Sexual size dimorphism in anurans fails to obey Rensch’s rule

Sexual size dimorphism in anurans fails to obey Rensch’s rule

Brain size evolution in the frog Fejervarya limnocharis supports neither the cognitive buffer nor the expensive brain hypothesis

Short Communication: Determination of the age of the Paddy Field Frog, Fejervarya cancrivora (Anura: Dicroglossidae) by using skeletochronology

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