Testing Bergmann's Rule in the Widespread Mexican Lizard Anolis Nebulosus (Squamata: Dactyloidae)

Hernández-Amparan, Saúl; Sainz-Mellado, Isabel; Hernández‐Salinas, Uriel; López‐González, Celia

doi:10.1894/0038-4909-65.1.1

Cited by 4 publications

(2 citation statements)

References 52 publications

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“…Results from two different approaches could show how robust the patterns are, but both assemblage and interspecific levels always have different findings (Bergmann, 1847; Freckleton et al, 2003; Hernandez‐Amparan et al, 2020; James, 1970; Liang et al, 2018; Morrissey et al, 2020; Pincheira‐Donoso et al, 2019; Slavenko & Meiri, 2015). Some studies prefer to rely on the interspecific level (e.g.…”

Section: Discussionmentioning

confidence: 99%

Altitudinal gradients and body size variation among Chinese lizards in different terrains

et al. 2023

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Spatial patterns of body size are associated with environmental factors like temperature, seasonality, precipitation, resources, and altitude, among the most relevant. Latitudinal size patterns have been extensively studied. Studies on altitudinal gradients of body size, however, are relatively few. Besides, it is still unclear whether there is variation in the relationship between environmental factors and body size of species, or correlations within different altitudes. China provides a good opportunity to assess the altitudinal gradients of body size, because the entire terrain of China changes from high altitude in the west to low altitude in the east, with three natural terrain stages (low: less than 660 m.a.s.l.; medium: 660–2600 m.a.s.l.; and high: more than 2600 m.a.s.l.). Similarly, lizards are distributed across a wide altitudinal range (from −154.31 m to ~6000 m above sea level). We examined 211 lizard species in China and assessed the altitudinal gradients of Chinese lizard body sizes at assemblage and interspecific levels. Piecewise structural equation models (pSEM) were used to investigate the direct and indirect relationships between body size and environmental factors within different terrains (low, medium, and high altitudes). Overall, we found that body size in Chinese lizards decreases with increasing altitude. However, there were variations in the altitudinal gradients and drivers within the three terrain stages. Altitude has both direct (medium and low stages) and indirect (high stages) effects in shaping lizard size. We established that body size increased with increasing altitudes in the low and medium terrain stages. Seasonality had different effects on body size in medium (positively) and low (negatively) stages. However, among the three terrain stages, temperature was consistently negatively correlated with lizard size. Overall, we identified complex patterns and drivers of altitudinal gradients of body size within the three terrain stages, probably due to the different environmental conditions across altitudes.

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Section: Discussionmentioning

confidence: 99%

Altitudinal gradients and body size variation among Chinese lizards in different terrains

et al. 2023

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“…Considerando a extensa literatura relacionada com a Lei de Bergmann em lagartos (ex. Ashton & Feldman, 2003;Ashton, 2004;Hernández-Amparan et al, 2021;Pincheira-Donoso et al, 2008), também foram testadas associações entre o tamanho corpóreo e a latitude média da área de distribuição das espécies. As relações entre tamanho corpóreo e variáveis ambientais foram analisadas por meio de testes filogenéticos de correlação de Pagel (Phylogenetic Generalized Least Squares, ou PGLS), utilizando a função "gls" no pacote "nlme" para R (Pinheiro & Bates, R Core Team, 2022).…”

Section: ) Associações Entre Padrões De Tamanho Corpóreo E Parâmetros...unclassified

Evolução do tamanho corpóreo em lagartos (Squamata): relações com parâmetros climáticos

Guedes¹

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Phenotypic diversity in biological systems is often structured in patterns that, once identified, enable postulation of explanatory models with derived predictions. Examples of these include relationships between body size and environmental parameters such as rainfall regimes, solar incidence, environmental temperatures and climatic seasonality, which might restrict or accelerate growth rates and influence body size in adults of different animal lineages. The study of body size evolution in lizards, in particular, is a topic that has received considerable attention in the past decades but still demands approaches using large databases with wide taxonomic scope that implement integrative analyzes with several environmental layers. The present work compiled a database of body size information available in the literature for 1309 species of 23 lizard families and climatic data compiled for 6 environmental variables referring to the central point and distribution range of each species, and evaluated different predictive models in these animals. The implemented models considered isolated effects of environmental variables and also interactions among them. The best-fit model selected suggests a negative association between body size and rainfall seasonality influenced by phylogenetic signal, and analyses did not exclude the possibility of body size associations that are lineage-specific. This work pioneers by identifying associations between body size and the seasonality of a climate variable ('seasonal rainfall'), a result discussed in the context of relationships between growth and primary production related to the availability of water and food.

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Sex-dependent shifts in body size and condition along replicated elevational gradients in a montane colonising ectotherm, the common wall lizard (Podarcis muralis)

Perry,

Sarraude,

Billet

et al. 2024

Oecologia

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Testing Bergmann's Rule in the Widespread Mexican Lizard Anolis Nebulosus (Squamata: Dactyloidae)

Cited by 4 publications

References 52 publications

Altitudinal gradients and body size variation among Chinese lizards in different terrains

Altitudinal gradients and body size variation among Chinese lizards in different terrains

Evolução do tamanho corpóreo em lagartos (Squamata): relações com parâmetros climáticos

Sex-dependent shifts in body size and condition along replicated elevational gradients in a montane colonising ectotherm, the common wall lizard (Podarcis muralis)

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