A5086579040- Animal Behavior and Reproduction
- Physiological and biochemical adaptations
- Species Distribution and Climate Change
- Avian ecology and behavior
- Amphibian and Reptile Biology
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Bat Biology and Ecology Studies
- Fish Ecology and Management Studies
- Insect and Arachnid Ecology and Behavior
- Ocean Acidification Effects and Responses
- Greenhouse Technology and Climate Control
- Plant and soil sciences
- Fish Biology and Ecology Studies
- Viral Infections and Vectors
- Marine Bivalve and Aquaculture Studies
- Demographic Trends and Gender Preferences
- Turtle Biology and Conservation
- Bird parasitology and diseases
- Comparative Animal Anatomy Studies
- Insect-Plant Interactions and Control
- Botany, Ecology, and Taxonomy Studies
- Marine animal studies overview
- Forest Insect Ecology and Management
- Animal Ecology and Behavior Studies
Universidad Complutense de Madrid
2024
Universidad Rey Juan Carlos
2015-2024
McGill University
2020-2024
University of Montana
2020-2022
Bridge University
2022
ORCID
2022
Significance Organismal responses to climate change are mediated through its effects on physiology and metabolism. In aquatic environments, both water temperature oxygen availability may modulate these by altering the aerobic metabolism fueling physiological performance. However, ecological models aimed at predicting how environmental factors shape disregard role of supply. Here, we expand explicitly incorporating Our results show that warmer increases demand relative supply, resulting...
Glucocorticoid hormones (GCs) modulate acute 'stress' responses in vertebrates, exerting their actions across many physiological systems to help the organism face and overcome challenges. These take place via binding glucocorticoid receptor (GR), which determines not only magnitude of GC-mediated response but also negative feedback that downregulates GCs restore homeostasis. Although GR function is assumed determine GC regulation capacity, associations between abundance individuals' coping...
Temperature influences the geographical distribution of species, but its mechanisms are much debated. A new study in PLOS Biology suggests that metabolic constrains can arise both warm and cold waters at range limits marine species.
Abstract Understanding how temperature determines the distribution of life is necessary to assess species’ sensitivities contemporary climate change. Here, we test importance in limiting geographic ranges ectotherms by comparing temperatures and areas that species occupy could potentially on basis their physiological thermal tolerances. We find marine across all latitudes terrestrial from tropics closely match However, temperate polar are absent warm, thermally tolerable they beyond...
Because temperature has pervasive effects on biological rates, climate warming may alter the outcomes of interactions between insect hosts and their parasitoids, which, for many host species, constitute single largest source mortality. Despite growing interest in parasitoid-host responses to change, there are few empirical tests thermal tolerance differences non-model lepidopteran parasitoids almost none from mountain ecosystems where is occurring more rapidly. We examined ecology a...
Abstract Many organisms are shrinking in size response to global warming. However, we still lack a comprehensive understanding of the mechanisms linking body and temperature across their geographical ranges. Here investigate biophysical determining scaling with latitudes terrestrial ectotherms. Using models, simulated operative temperatures experienced by lizard‐like ectotherms as function microclimatic variables, mass latitude used them generate null predictions for effect on gradients. We...
Body size and shape fundamentally determine organismal energy requirements by modulating heat mass exchange with the environment costs of locomotion, thermoregulation, maintenance. Ecologists have long used physical linkage between morphology balance to explain why body many organisms vary across climatic gradients, e.g., larger endotherms are more common in colder regions. However, few modeling exercises aimed at investigating this link from first principles. evolution bats contrasts...
Geographical gradients of body size express climate-driven constraints on animals, but whether they exist and what causes them in ectotherms remains contentious. For amphibians, the water conservation hypothesis posits that larger bodies reduce evaporative loss (EWL) along dehydrating gradients. To address this mechanistically, we build well-established biophysical equations exchange anurans to propose a state-transition model predicts an increase either or resistance EWL as alternative...
Abstract Aim Understanding the mechanisms behind broad‐scale gradients in animal body size remains challenging. In contrast to endotherms, extent which biophysical properties of ectotherms scale up into interspecific at macroecological scales elusive. Our aim here is investigate what latitudinal are expected emerge from first principles regarding heat and water balances terrestrial vertebrate ectotherms. Location Nearctic Western Palaearctic. Time period Theoretical model under current...
Abstract Glucocorticoids (GCs) are metabolic hormones that regulate physiological and behavioural responses to environmental change mediate homeostasis maintenance in vertebrates. Despite the assumption GCs covary with energy metabolism, we yet lack a mechanistic understanding of how factors such as temperature modulate GC variation through their effect on organismal balance. In particular, mechanisms linking temperature‐dependent rate at broad spatial scales across species remain poorly...
ABSTRACT Glucocorticoid (GC) hormones have traditionally been interpreted as indicators of stress, but the extent to which they provide information on physiological state remains debated. GCs are metabolic that amongst other functions ensure increasing fuel (i.e. glucose) supply face fluctuating energetic demands, a role often overlooked by ecological studies investigating consequences GC variation. Furthermore, because energy budget is limited, in natural contexts where multiple stimuli...
Although sexual selection is typically considered the predominant force driving evolution of ritualized behaviours, natural may also play an important and often underappreciated role. The use green aromatic plants among nesting birds has been interpreted as a component extended phenotype that evolved either via due to potential sanitary functions or signal male attractiveness. Here, we compared both hypotheses using comparative methods in starlings, group where this behaviour widespread. We...
Although several hypotheses have been proposed to explain the function of fresh green plants in nests many avian species, consequences this behavior on fitness remain poorly understood. In accordance with nest protection and drug hypotheses, adding greenery should be naturally selected facilitate positive effects offspring. Alternatively, courtship hypothesis postulates that as a sexually signal male attractiveness might promote female competition for preferred males. We conducted long-term...
The expression of elaborated displays provides reliable information to conspecifics about the quality signaler. Competition for breeding resources or mates is predicted affect signals in both males and females; however, literature has been typically focused on male behaviors. spotless starling an interesting example where sexes decorate nest signal their condition social status: add green plants at beginning period, females place foreign feathers during incubation period. In this study, we...
Realistic projections of the biological impacts climate change require predicting fitness responses to variations in environmental conditions. For ectotherms, this challenge requires methods scale-up microclimatic information into actual body temperatures, Tb, while dealing with uncertainty regarding individual behaviors and physiological constraints. Here, we propose an information-theoretical model derive microhabitat selection Tb distributions ectotherm populations from data. The infers...
Environmental and intrinsic factors interact to determine energy requirements in vertebrates. Glucocorticoid hormones (GCs) are key mediators of this interaction, as they fluctuate with energetic demands regulate physiological behavioral responses environmental challenges. While a great body research has focused on GC variation among individuals, the mechanisms driving across species at broad spatial scales remain largely unexplored. Here, we adopted macrophysiological approach investigate...
Abstract Environmental temperature variation may play a significant role in the adaptive evolutionary divergence of ectotherm thermal performance curves (TPCs). However, TPCs also be constrained due to various causes. Here, we measured for swimming velocity temperate and tropical mayflies (Family: Baetidae) their stonefly predators Perlidae) from different elevations. We predicted that differences seasonal climatic regimes would drive between species. Stable temperatures should favor...
Grey Crowned Crane Balearica regulorum is described as an icon of Africa’s wetlands and grasslands listed Endangered on the IUCN Red List Threatened species. Conservation efforts are partially hindered by lack information factors influencing breeding productivity, such nest-site selection. Factors selection were investigated at Lake Ol’ Bolossat, a 43.3 km2 wetland located in central Kenya from 30 paired nests. Generalized Linear Mixed-Effects Models used to analyse relationship between...
Abstract Information on breeding habits of grey crowned crane ( Balearica regulorum ) in Kenya is currently lacking. Investigations were therefore carried out between 2017 and 2020 to determine its nesting Lake Ol’ Bolossat basin including nest‐site features, number distribution territorial pairs, clutch size, eggs, duration cycle. While 103 pairs observed the lake marshlands (mean density 5.00 pairs/km 2 ), only 20 found upland wetlands. The densities (pairs/km each lake's sections as...
Understanding the ecology, physiology, and interactions with humans of viral reservoirs such as bats – mammalian order hosting highest zoonotic richness– is key to forecast emergence new infectious diseases. The flight fever hypothesis has been proposed explain why host, without overt signs illness, a high diversity viruses that show virulence in case spillover. High metabolic rates amount heat produced during would stimulate immune responses, thus allowing control replication while...
Patterns of natal dispersal are generally sex‐biased in vertebrates, i.e. female‐biased birds and male‐biased mammals. Interphyletic comparisons mammals suggest that occurs polygynous promiscuous species where local mate competition among males exceeds resource females. However, few studies have analysed patterns at the individual level, facultatively might offer this opportunity. In spotless starling, exhibit their mating status during courtship carrying higher amounts green plants to nests...