Global change and premature hatching of aquatic embryos

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(9)

Published: Sept. 1, 2024

Abstract Anthropogenically induced changes to the natural world are increasingly exposing organisms stimuli and stress beyond that which they adapted. In aquatic systems, it is thought certain life stages more vulnerable than others, with embryos being flagged as highly susceptible environmental stressors. Interestingly, evidence from across a wide range of taxa suggests can hatch prematurely, potentially an adaptive response external stressors, despite potential for individual costs linked underdeveloped behavioural and/or physiological functions. However, surprisingly little research has investigated prevalence, causes consequences premature hatching, no compilation literature exists. Here, we review what known about hatching in discuss how this phenomenon likely become exacerbated anthropogenically global change. Specifically, (1) mechanisms including triggers experimental systems; (2) implications at different levels biological organisation individuals ecosystems; (3) outline knowledge gaps future directions understanding drivers hatching. We found prematurely broad abiotic (i.e. temperature, oxygen, toxicants, light, pH, salinity) biotic predators, pathogens) also provide empirical appears be common rapid thermal ramping fish species. argue represents fascinating yet untapped area study, may some additional resilience communities face ongoing

Language: Английский

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Can nesting behaviour allow reptiles to adapt to climate change?

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 378(1884)

Published: July 10, 2023

A range of abiotic parameters within a reptile nest influence the viability and attributes (including sex, behaviour body size) hatchlings that emerge from nest. As result sensitivity, reproducing female can manipulate phenotypic her offspring by laying eggs at times in places provide specific conditions. Nesting reptiles shift their terms timing oviposition, location depth beneath soil surface across spatial temporal gradients. Those maternal manipulations affect mean values variances both temperature moisture, may modify vulnerability embryos to threats such as predation parasitism. By altering thermal hydric conditions nests, climate change has potential dramatically developmental trajectories survival rates embryos, phenotypes hatchlings. Reproducing females buffer effects modifying timing, structure nests ways enhance viability. Nonetheless, our understanding nesting behaviours response remains limited reptiles. Priority topics for future studies include documenting climate-induced changes environment, degree which behavioural shifts mitigate climate-related deleterious impacts on development, ecological evolutionary consequences responses change. This article is part theme issue ‘The ecology nests: cross-taxon approach’.

Language: Английский

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Telomere length, oxidative stress and their links with growth and survival in a lizard facing climate warming

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 891, P. 164424 - 164424

Published: May 25, 2023

Language: Английский

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From eggs to adulthood: sustained effects of early developmental temperature and corticosterone exposure on physiology and body size in an Australian lizard

Journal of Experimental Biology, Journal Year: 2024, Volume and Issue: 227(24)

Published: Dec. 12, 2024

Developing animals are increasingly exposed to elevated temperatures as global rise a result of climate change. Vertebrates can be affected by during development directly, and indirectly through maternal effects (e.g. exposure prenatal glucocorticoid hormones). Past studies have examined how independently affect vertebrates. However, corticosterone could interactive on developing that physiology life-history traits across life. We tested interactions between incubation temperature in the delicate skink (Lampropholis delicata). treated eggs with high or low doses incubated at 23°C (cool) 28°C (warm). measured these treatments time, body size survival from hatching adulthood adult hormone levels mitochondrial respiration. found no evidence for phenotype. treatment each decreased were sustained into juvenile period adulthood. Lizards had baseline adults. Additionally, lizards cool higher more efficient mitochondria adults compared warm temperatures. Our results show developmental conditions morphological physiological oviparous but suggest do not effects.

Language: Английский

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The influence of incubation temperature on offspring traits varies across northern and southern populations of the American alligator (Alligator mississippiensis)

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(2)

Published: Feb. 1, 2024

Maternal provisioning and the developmental environment are fundamental determinants of offspring traits, particularly in oviparous species. However, extent to which embryonic responses these factors differ across populations drive phenotypic variation is not well understood. Here, we examine contributions maternal incubation temperature hatchling morphological metabolic traits four American alligator (

Language: Английский

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Nest thermal dynamics and predicted sex ratio in endemic freshwater crocodylian, gharial (Gavialis gangeticus) in Chambal River, India

Evolutionary Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Language: Английский

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Embryonic behavior and skeletogenesis in developing skate Okamejei kenojei

Zoology, Journal Year: 2025, Volume and Issue: 170, P. 126270 - 126270

Published: May 1, 2025

Language: Английский

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Ontogeny of risk assessment and escape-hatching performance by red-eyed treefrog embryos in two threat contexts

Journal of Experimental Biology, Journal Year: 2022, Volume and Issue: 225(20)

Published: Oct. 7, 2022

Arboreal embryos of red-eyed treefrogs, Agalychnis callidryas, hatch prematurely in response to hypoxia when flooded and mechanosensory cues snake attacks, but hatching later improves tadpole survival. We studied ontogenetic changes risk assessment performance flooding physical disturbance. hypothesized that decreases as hatchling survival increases develop. Because snakes eat faster than asphyxiate, we decide sooner cues. video-recorded individual each cue type, then compared the incidence timing a series events behaviors from onset complete across ages stimuli. Latency decreased developmentally both contexts was shorter with cues, elements contributing those differed. Hypoxia involved position changes, which along time. Mechanosensory occurred more rapidly, without movement, age. The first stages hatching, membrane rupture head emergence, were surprisingly age independent congruent greater effort under immediate risk. In contrast, body emergence compression showed improvement consistent morphological constraints no effect. Both appropriate effective are necessary for continued development. Different process vary development environmental context, suggesting combinations adaptive context- stage-dependent behavior, cue-related on information acquisition, performance.

Language: Английский

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Developmental changes in red-eyed treefrog embryo behavior increase escape-hatching success in wasp attacks

Behavioral Ecology and Sociobiology, Journal Year: 2023, Volume and Issue: 77(5)

Published: May 1, 2023

Language: Английский

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Chemical Cues Released by Predators’ Consumption of Heterospecific Prey Alter the Embryogenesis of Zebrafish

Fishes, Journal Year: 2024, Volume and Issue: 9(3), P. 95 - 95

Published: March 1, 2024

Environmentally cued hatching is prevalent, diverse, and crucial to many animals’ survival. Fish embryos use a variety of chemical cues initiate avoid potential predators, yet the function released from predatory consumption heterospecific prey largely unknown. Zebra cichlids (Metriaclima estherae) are ferocious predators that can feed on medaka (Oryzias latipes), though it impossible for this occur in their natural habitat. Zebrafish (Danio rerio) have been employed as experimental subjects due sensitivity signals. In study, zebrafish were subjected three types signals: predator (PCs, cichlids), (HCs, medaka), dietary (HDCs, ingested medaka). As result, times accelerated by 6.8% 12.6% PCs HDCs, respectively. HDCs cause significantly reduced morphology embryos, including regarding total length, eye dorsal fin trunk height, caudal body cavity, increase yolk sac height. The diminished larvae’s motion at 120 144 h post fertilization (hpf), which could be attributed non-developmental embryogenesis. Overall, impacts embryonic hatching, developmental morphology, locomotor more pronounced comparison with PCs. Our findings demonstrate predators’ cues, even those after predation prey, modify embryogenesis, highlighting critical functions signals risk assessment using embryos.

Language: Английский

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