Results 121 to 130 of about 11,739 (323)

Transmission of Ranavirus between Ectothermic Vertebrate Hosts

open access: yesPLoS ONE, 2014
Transmission is an essential process that contributes to the survival of pathogens. Ranaviruses are known to infect different classes of lower vertebrates including amphibians, fishes and reptiles. Differences in the likelihood of infection among ectothermic vertebrate hosts could explain the successful yearlong persistence of ranaviruses in aquatic ...
Roberto Brenes   +4 more
openaire   +4 more sources

Contrasting effects of temperature across trophic levels in geothermally warmed soil food webs

open access: yesOikos, EarlyView.
Global warming is altering the structure and dynamics of ecological communities, with significant consequences for soil food webs. Rising temperatures are expected to accelerate metabolic rates in organisms, potentially altering species interactions, and the structure and energetics of food webs.
Estela Folch Chaos   +3 more
wiley   +1 more source

The effects of single versus successive warm summers on an intertidal community

open access: yesOikos, EarlyView.
To accurately predict how organisms and ecological communities will respond to future conditions caused by climate change, we must consider the temporal dynamics of environmental stressors, including the effects of repeated exposures to stress. We performed a two‐year passive thermal manipulation in coastal British Columbia, Canada to determine how ...
Amelia V. Hesketh   +3 more
wiley   +1 more source

Localized extinction of an arboreal desert lizard caused by habitat fragmentation [PDF]

open access: yes, 2013
We adopted a species' perspective for predicting extinction risk in a small, endemic, and strictly scansorial lizard (Urosaurus nigricaudus), in an old (∿60.
Culver, M.   +3 more
core   +1 more source

Fever in Ectotherms: Evolutionary Implications [PDF]

open access: yesAmerican Zoologist, 1979
Fever, an elevated thermoregulatory “set-point,” occurs in vertebrates from fishes through mammals in response to infection with appropriate pathogens. The long phylogenetic history of fever supports the hypothesis that fever has an adaptive or beneficial role (i.e., fever is a component of the host's immunological defenses).
openaire   +1 more source

On the geography of activity: productivity but not temperature constrains discovery rates by ectotherm consumers

open access: yesEcosphere, 2019
Consumer activity—the rate that individuals move through and discover items in their environment—can constrain population interactions and ecosystem services. We introduce a model that assumes consumer activity is co‐limited by the abundance and velocity
M. Kaspari, K. Beurs
semanticscholar   +1 more source

Breeding cold‐tolerant Orius laevigatus lines improves thermal tolerance and body size: implications for biological control

open access: yesPest Management Science, EarlyView.
Biological control agents performance is influenced by temperature. Two cold‐tolerant lines of O. loevigatus were developed, improving their fitness at both low and high temperatures, offering advantages far augmentative biological control. Abstract BACKGROUND The performance of biological control agents (BCAs) is strongly influenced by environmental ...
Ana Belén Abelaira   +4 more
wiley   +1 more source

Heat Tolerance is Affected by the Gut Microbiota in a Vertebrate Ectotherm [PDF]

open access: gold, 2023
Jason Dallas   +3 more
openalex   +1 more source

Tradeoffs between brain and digestive tissues across elevations in Typhlomys daloushanensis: evidence for sexual dimorphism

open access: yesWildlife Biology, EarlyView.
To cope with highly stochastic and/or heterogeneous environmental conditions, animals must balance energy resource allocation across physiological processes. The digestive tract and brain exhibit structural variations under strong developmental and selective pressures that vary across environmental gradients both between and within species.
Yimei Yan   +9 more
wiley   +1 more source

Body size shifts influence effects of increasing temperatures on ectotherm metabolism

open access: yesbioRxiv, 2017
Aim: It is well-established that warmer temperatures directly cause metabolic rates of ectotherms to increase, but temperature additionally indirectly affects metabolic rates due to impacts on other aspects of ecological systems.
Kristina Riemer   +4 more
semanticscholar   +1 more source

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