Developmental reaction norms vary among families of lizards in response to multivariate nest environments DOI
M. Christopher Norris, Joshua M. Hall, Daniel A. Warner

et al.

Oikos, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 30, 2024

Developmental plasticity is the capacity of a single genotype to express multiple phenotypes in response different early‐life environments. Such responses are defined by reaction norms, which may vary among individuals or populations. Variation developmental norms allows natural selection operate on and rarely examined vertebrates. We quantified variation embryonic within between populations using brown anole lizard. captured lizards from two islands Matanzas River (Florida, USA) incubated their eggs under one multivariate treatments that mimicked temperature, moisture substrates nest sites either shaded open habitat. measured hatchling morphology, performance, physiology quantify family‐level norms. observed evidence for morphology but not performance physiology, indicating an opportunity shape body size. Overall, results indicate abiotic conditions nests combine increase reduce phenotypic variation, provides potential plasticity.

Language: Английский

Reduced Water Availability to Mothers and Embryos Has Little Effect on Offspring Phenotypes in an Invasive Lizard DOI Open Access
Sydney M. Wayne, M. Christopher Norris, Amélie Fargevieille

et al.

Journal of Experimental Zoology Part A Ecological and Integrative Physiology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 31, 2025

Water availability has critical impacts on numerous physiological functions in all organisms and can have different effects across life stages. For example, water available to reproductive females influence offspring production, the potential how early-stage (e.g., embryos) respond moisture their developmental environment. In this study, we use brown anole lizard (Anolis sagrei) examine of investment. We tested hypothesis that mothers influences embryonic development under levels incubation demonstrate a substantial reduction (~70% reduction) no observable effect fecundity, egg size, or hydration. also provide evidence our restriction does not embryos conditions during incubation. However, substrate positively affected uptake, hatching success hatchling body size (but hydration). Overall, study shows reproduction adult female A. sagrei is robust variation availability, but survival early stages sensitive variable. Thus, fitness components varies between

Language: Английский

Citations

0
The diverse terminology of reptile eggshell microstructure and its effect on phylogenetic comparative analyses DOI Creative Commons
Lucas J. Legendre, Seung Hyun Choi, Julia A. Clarke

et al.

Journal of Anatomy, Journal Year: 2022, Volume and Issue: 241(3), P. 641 - 666

Published: June 27, 2022

Abstract Reptile eggshell ensures water and gas exchange during incubation plays a key role in reproductive success. The diversity of reptilian life history strategies has led to many clade‐specific structural adaptations their eggshell, which have been studied extant taxa (i.e. birds, crocodilians, turtles, lepidosaurs). Most studies on non‐avian eggshells were performed over 30 years ago categorized reptile into two main types: “hard” “soft” – sometimes with third intermediate category, “semi‐rigid.” In recent years, however, debate the evolution structure major clades revealed how definitions hard soft influence inferred deep‐time evolutionary patterns. Here, we review fossil focus clades, criteria that used define hard, soft, semi‐rigid eggshells. We show all scoring approaches retain these categories discretize continuous quantitative traits (e.g. thickness) do not consider independent variation other functionally important microstructural degree calcification, shell unit inner structure). demonstrate effect three published discretizing type semi‐rigid, ancestral state reconstructions using 200+ species representing extinct clades. These result different states for including Archosauria Dinosauria, despite difference only 1–4% sample. Proposed scenarios are highly conditioned by sampling, tree calibration, lack congruence between type. conclude traditional “soft/hard/semi‐rigid” classification should be abandoned provide guidelines future descriptions focusing specific relevant characteristics structures units, pores, membrane elements), analyses phylogenetic context, sampling previously undescribed taxa, eggs.

Language: Английский

Citations

14
A general framework for jointly modelling thermal and hydric constraints on developing eggs DOI Creative Commons
Michael Kearney, Urtzi Enriquez‐Urzelai

Methods in Ecology and Evolution, Journal Year: 2022, Volume and Issue: 14(2), P. 583 - 595

Published: Nov. 8, 2022

Abstract Eggs are a vulnerable stage because they sensitive to thermal and hydric conditions yet cannot behaviourally avoid stressful environments. A general mechanistic model of egg development in natural nests requires microclimatic predictions temperature, humidity, radiation (if above ground) water potential buried soil) be integrated with models heat exchange the metabolism developmental process. Although all required pieces for such now exist, have not been into modelling framework. We developed an integration using NicheMapR package niche modelling. Specifically, we took existing connected it microclimate simulate nest environments, including effects soil on liquid vapour moisture‐mediated conductivity exchange. then used Dynamic Energy Budget within ectotherm as engine process, allowing explicit computation dynamics metabolic production aspects mass illustrate framework laboratory field data reptiles, insects, birds. show that can capture observations how map uptake under at continental scale. The interpret experiments allows strong inferences made about abiotic constraints past, present, future environmental change.

Language: Английский

Citations

8
Nesting in Anolis Lizards: An Understudied Topic in a Well-Studied Clade DOI Creative Commons
Jenna E. Pruett, Joshua M. Hall, Sarin Tiatragul

et al.

Frontiers in Ecology and Evolution, Journal Year: 2022, Volume and Issue: 10

Published: May 9, 2022

Maternal nesting behavior in oviparous species strongly influences the environmental conditions their embryos experience during development. In turn, these early-life have consequences for offspring phenotypes and many fitness components across an individual’s lifespan. Thus, identifying evolutionary ecological causes effects of is a key goal behavioral ecology. Studies reptiles contributed greatly to our understanding how shapes phenotypes. While some taxonomic groups been used extensively provide insights into this important area biology, remain poorly studied. For example, squamate genus Anolis has served as model study behavior, ecology, evolution, but research focused on developmental plasticity comparatively scarce. This dearth empirical may be attributed logistical challenges (e.g., difficulty locating nests), biological factors single-egg clutches hinder experimental designs), historical focus males research. Although there gap literature concerning interest ecology group grown recent years. paper, we (1) review existing studies anole plasticity; (2) highlight areas that are currently understudied discuss can contribute broader topics maternal global change biology); (3) guidelines studying field. Overall, provides foundation establishing anoles models plasticity.

Language: Английский

Citations

5
Effects of incubation temperature on development, morphology, and thermal physiology of the emerging Neotropical lizard model organism Tropidurus torquatus DOI Creative Commons
Anderson Kennedy Soares De‐Lima, Carlos Henke de Oliveira, Aline Pic‐Taylor

et al.

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: Oct. 13, 2022

Abstract Incubation temperature is among the main phenotypic trait variation drivers studied since developmental trajectory of oviparous animals directly affected by environmental conditions. In last decades, global warming predictions have aroused interest in understanding its impacts on biodiversity. It predicted that effects direct will be exacerbated other anthropogenic factors, such as microclimatic edge effects. Although Brazilian Cerrado biome one most these issues, little known about aforementioned Therefore, aim our study to investigate influence incubation parameters, morphology and thermal physiology traits collared lizard ( Tropidurus torquatus ). Furthermore, we discuss findings regarding biology climate change paradigm. incubated T. eggs under five regimes ranging from artificial nest (28.7 °C) 35.0 °C. We found elevated temperatures affect several investigated traits: egg mass gain positively affected, without any newborn mass; period broadly reduced with increase; survival rate negatively temperature, constant °C regime confirmed a lethal sex ratio at 30.0 °C, prevailing outbreak females. Increased also affects body head size but has no effect limb size. Newborn thermoregulation critical maximum (CT max ) are not temperature. On hand, basal (T bb minimum min were affected. Thermal was age, newborns differing adults for all analyzed traits. Our indicate future modifications nesting sites caused may features development, morphology, this species. Laboratory experiments pointed possible drastic rates, affecting aspects natural history population distribution. Moreover, addition being more vulnerable than predation feeding, physiological

Language: Английский

Citations

4
Fluctuating environments hinder the ability of female lizards to choose suitable nest sites for their embryos DOI
Daniel A. Warner,

Connor Kelly,

Jenna E. Pruett

et al.

Behavioral Ecology and Sociobiology, Journal Year: 2023, Volume and Issue: 77(3)

Published: March 1, 2023

Language: Английский

Citations

2
Developmental reaction norms vary among families of lizards in response to multivariate nest environments DOI
M. Christopher Norris, Joshua M. Hall, Daniel A. Warner

et al.

Oikos, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 30, 2024

Developmental plasticity is the capacity of a single genotype to express multiple phenotypes in response different early‐life environments. Such responses are defined by reaction norms, which may vary among individuals or populations. Variation developmental norms allows natural selection operate on and rarely examined vertebrates. We quantified variation embryonic within between populations using brown anole lizard. captured lizards from two islands Matanzas River (Florida, USA) incubated their eggs under one multivariate treatments that mimicked temperature, moisture substrates nest sites either shaded open habitat. measured hatchling morphology, performance, physiology quantify family‐level norms. observed evidence for morphology but not performance physiology, indicating an opportunity shape body size. Overall, results indicate abiotic conditions nests combine increase reduce phenotypic variation, provides potential plasticity.

Language: Английский

Citations

0