Developmental environments do not affect thermal physiological traits in reptiles: an experimental test and meta-analysis

Biology Letters, Год журнала: 2023, Номер 19(5)

Опубликована: Май 1, 2023

On a global scale, organisms face significant challenges due to climate change and anthropogenic disturbance. In many ectotherms, developmental physiological processes are sensitive changes in temperature resources. Developmental plasticity thermal physiology may provide adaptive advantages environmental extremes if early conditions predictive of late-life environments. Here, we conducted laboratory experiment test how maternal resource investment influence traits (critical maximum: CT max preference: T pref ) common skink ( Lampropholis delicata ). We then compared our experimental findings more broadly across reptiles (snakes, lizards turtles) using meta-analysis. both study meta-analysis, did not find evidence that environments or . Furthermore, the effects on vary by age, taxon zone (temperate/tropical). Overall, magnitude appears be limited reptile taxa suggesting behavioural evolutionary important. However, there is paucity information most taxa, broader focus performance curves themselves will critical understanding impacts changing future.

Язык: Английский

---

The interplay between temperature, Trypanosoma cruzi parasite load, and nutrition: Their effects on the development and life-cycle of the Chagas disease vector Rhodnius prolixus

PLoS neglected tropical diseases, Год журнала: 2024, Номер 18(2), С. e0011937 - e0011937

Опубликована: Фев. 2, 2024

Chagas disease, caused by the protozoan parasite Trypanosoma cruzi transmitted blood-sucking insects of subfamily Triatominae, is a major neglected tropical disease affecting 6 to 7 million people worldwide. Rhodnius prolixus , one most important vectors in Latin America, known be highly sensitive environmental factors, including temperature. This study aimed investigate effects different temperatures on R . development and life-cycle, its relationship with T gather information about nutritional habits energy consumption We exposed uninfected infected four ranging from 24°C 30°C, monitored their survival, developmental rate, body blood meal masses, urine production, temporal dynamics concentration excreted triatomines over course development. Our results demonstrate that temperature significantly impacts development, life-cycle as higher had shorter time mortality rate compared those lower temperatures, well ability retain weight between meals. Infection also decreased capacity gained blood-feeding next stage, this effect was proportional urine. showed multiplication varied depending temperature, lowest having load. findings provide insights into potential impact climate change epidemiology can contribute efforts model future distribution disease. raises new questions, highlighting need for further research order understand complex interactions vector biology, transmission.

Язык: Английский

---

The effect of experimental warming on reproductive performance and parental care in the burying beetle Nicrophorus nepalensis

Royal Society Open Science, Год журнала: 2024, Номер 11(10)

Опубликована: Окт. 1, 2024

Rising temperatures can adversely affect parental care and reproductive performance across a range of taxa. However, the warming impact is contingent upon understanding how temperature affects spectrum behaviours their interplay. Here, we assessed success in burying beetle,

Язык: Английский

---

Best of both worlds: Acclimation to fluctuating environments confers advantages and minimizes costs of constant environments

Functional Ecology, Год журнала: 2024, Номер 38(4), С. 724 - 738

Опубликована: Фев. 23, 2024

Abstract Thermal acclimation is often considered critical in organismal responses to novel thermal conditions. Our understanding of the physiological implications largely derived from lab studies that either manipulate daytime basking availability or use constant regimes. In contrast, importance nocturnal environment (e.g. extent respite) overlooked yet could play a vital role wild. To fill this gap, we acclimated lizards ( Amphibolurus muricatus ) under three regimes (Hot Constant, Cold Constant and Alternating) compared their (Metabolic Rate, Sprint Speed, Preferences Limits). We found animals maintained constantly at hot temperatures (preferred temperature, 35°C) gained sprint performance increases exhibited shifts optima not seen those cold (20°C), suffered costs growth (in smaller animals) maintenance (mass loss larger animals). Animals alternating (12 h 20°C; 12 had benefits similar treatment, without experiencing reductions juvenile adult mass. showed significant lower preferred voluntary maximum temperature regime. no impact treatment on behavioural limits standard metabolic rate. Overall, show between access having periods energetic rest confer greatest for our animals. These results highlight natural body variation enhancing overall ectotherm physiology, environments fail provide variation. Read free Plain Language Summary article Journal blog.

Язык: Английский

---

Integrating ecological niche modeling and rates of evolution to model geographic regions of mimetic color pattern selection

Evolutionary Ecology, Год журнала: 2024, Номер unknown

Опубликована: Март 30, 2024

Abstract Geographic variation in natural selection derived from biotic sources is an important driver of trait evolution. The evolution Müllerian mimicry governed by dual forces frequency-dependent predator and densities prey populations consisting conspecifics or congeners. Difficulties quantifying these can lead to difficulties delimiting studying phenomena such as We explore the spatial distribution morphotypes identify areas high mimetic using a novel combination methods generate maps phenotype prevalence Ranitomeya poison frogs, group frogs characterized great phenotypic multiple putative mimic pairs. categorized representative all species into four major recurring color patterns observed : striped, spotted, redhead, banded morphs. calculated rates for each 4 morphs separately generated ecological niche models (ENMs) species. then split our species-level ENMs on basis intraspecific pattern categorization, weighted ENM layers relative evolutionary rate produce maps. Our analyses identified significant shifts phenotypes. successfully suspected known literature show geographic with gradient suitability surrounding hotspots. This approach offers effective hypothesis generation method traits that are tied geography explicitly connecting trends their distribution, particularly situations where there unknowns about drivers

Язык: Английский

---