The Experts below are selected from a list of 19128 Experts worldwide ranked by ideXlab platform
Loren Merrill - One of the best experts on this subject based on the ideXlab platform.
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Egg Incubation temperature affects development of innate immune function in nestling american robins turdus migratorius
Physiological and Biochemical Zoology, 2020Co-Authors: Loren Merrill, Emilie A Ospina, Rachel M Santymire, Thomas J BensonAbstract:AbstractThe innate immune system provides important first-line defenses against invading pathogens and is considered especially important for developing organisms. However, we know little about how early-life conditions influence these defenses in wild animals. For oviparous species such as birds, embryonic development occurs in the Egg, which can be subject to variation in thermal conditions. There is evidence from cavity-nesting species and species with precocial young that reduced Incubation temperatures can result in reduced measures of innate immunity. Whether and how this thermal variation impacts innate immunity for open-cup-nesting species with altricial offspring has not been examined. In this study, we experimentally manipulated Egg Incubation temperature for American robins (Turdus migratorius) and compared the bacteria-killing ability (BKA) of the nestlings’ blood plasma. We collected baseline and poststressor samples on day 7 and day 10 after hatch to gain additional insights into the ontogen...
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Egg Incubation temperature affects development of innate immune function in nestling american robins turdus migratorius
Physiological and Biochemical Zoology, 2020Co-Authors: Loren Merrill, Rachel M Santymire, Emilie Ospina, Thomas J BensonAbstract:AbstractThe innate immune system provides important first-line defenses against invading pathogens and is considered especially important for developing organisms. However, we know little about how...
Daniel A Warner - One of the best experts on this subject based on the ideXlab platform.
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Egg Incubation temperature does not influence adult heat tolerance in the lizard anolis sagrei
Biology Letters, 2020Co-Authors: Alex R Gunderson, Amelie Fargevieille, Daniel A WarnerAbstract:Extreme heat events are becoming more common as a result of anthropogenic global change. Developmental plasticity in physiological thermal limits could help mitigate the consequences of thermal extremes, but data on the effects of early temperature exposure on thermal limits later in life are rare, especially for vertebrate ectotherms. We conducted an experiment that to our knowledge is the first to isolate the effect of Egg (i.e. embryonic) thermal conditions on adult heat tolerance in a reptile. Eggs of the lizard Anolis sagrei were incubated under one of three fluctuating thermal regimes that mimicked natural nest environments and differed in mean and maximum temperatures. After emergence, all hatchlings were raised under common garden conditions until reproductive maturity, at which point heat tolerance was measured. Egg mortality was highest in the warmest treatment, and hatchlings from the warmest treatment tended to have greater mortality than those from the cooler treatments. Despite evidence that Incubation temperatures were stressful, we found no evidence that Incubation treatment influenced adult heat tolerance. Our results are consistent with a low capacity for organisms to increase their physiological heat tolerance via plasticity, and emphasize the importance of behavioural and evolutionary processes as mechanisms of resilience to extreme heat.
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Egg Incubation temperature does not influence adult heat tolerance in the lizard anolis sagrei
Biology Letters, 2020Co-Authors: Alex R Gunderson, Amelie Fargevieille, Daniel A WarnerAbstract:Extreme heat events are becoming more common as a result of anthropogenic global change. Developmental plasticity in physiological thermal limits could help mitigate the consequences of thermal ext...
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Egg Incubation temperature affects male reproductive success but not display behaviors in lizards
Behavioral Ecology and Sociobiology, 2010Co-Authors: Daniel A Warner, Kevin L. Woo, Daniel A. Dyk, Christopher S. Evans, Richard ShineAbstract:The complex ritualized displays of males in many territorial species suggest that selection has shaped male behaviors in ways that affect fitness. In this study, we evaluated the link between display behavior during male–male interactions and reproductive success in the Australian jacky dragon ( Amphibolurus muricatus ), a lizard species that uses a complex series of movement patterns for communication. We quantified variation in male display behaviors by using video playback experiments in the laboratory, and subsequently assessed variation in male reproductive success by paternity analyses of offspring. Because the lizards used in this study came from Eggs incubated under three thermal environments, we also could evaluate the impact of developmental temperature on adult behavior and reproductive success. Incubation temperature had a strong effect on male reproductive success; males produced under intermediate temperatures sired more offspring than those produced under extreme developmental temperatures. However, Incubation temperature did not affect male display behavior, nor was male behavior associated with reproductive success. Our findings do not support the common assumption that display behaviors used during male–male interactions affect reproductive success.
Thomas J Benson - One of the best experts on this subject based on the ideXlab platform.
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Egg Incubation temperature affects development of innate immune function in nestling american robins turdus migratorius
Physiological and Biochemical Zoology, 2020Co-Authors: Loren Merrill, Emilie A Ospina, Rachel M Santymire, Thomas J BensonAbstract:AbstractThe innate immune system provides important first-line defenses against invading pathogens and is considered especially important for developing organisms. However, we know little about how early-life conditions influence these defenses in wild animals. For oviparous species such as birds, embryonic development occurs in the Egg, which can be subject to variation in thermal conditions. There is evidence from cavity-nesting species and species with precocial young that reduced Incubation temperatures can result in reduced measures of innate immunity. Whether and how this thermal variation impacts innate immunity for open-cup-nesting species with altricial offspring has not been examined. In this study, we experimentally manipulated Egg Incubation temperature for American robins (Turdus migratorius) and compared the bacteria-killing ability (BKA) of the nestlings’ blood plasma. We collected baseline and poststressor samples on day 7 and day 10 after hatch to gain additional insights into the ontogen...
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Egg Incubation temperature affects development of innate immune function in nestling american robins turdus migratorius
Physiological and Biochemical Zoology, 2020Co-Authors: Loren Merrill, Rachel M Santymire, Emilie Ospina, Thomas J BensonAbstract:AbstractThe innate immune system provides important first-line defenses against invading pathogens and is considered especially important for developing organisms. However, we know little about how...
Alex R Gunderson - One of the best experts on this subject based on the ideXlab platform.
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Egg Incubation temperature does not influence adult heat tolerance in the lizard anolis sagrei
Biology Letters, 2020Co-Authors: Alex R Gunderson, Amelie Fargevieille, Daniel A WarnerAbstract:Extreme heat events are becoming more common as a result of anthropogenic global change. Developmental plasticity in physiological thermal limits could help mitigate the consequences of thermal extremes, but data on the effects of early temperature exposure on thermal limits later in life are rare, especially for vertebrate ectotherms. We conducted an experiment that to our knowledge is the first to isolate the effect of Egg (i.e. embryonic) thermal conditions on adult heat tolerance in a reptile. Eggs of the lizard Anolis sagrei were incubated under one of three fluctuating thermal regimes that mimicked natural nest environments and differed in mean and maximum temperatures. After emergence, all hatchlings were raised under common garden conditions until reproductive maturity, at which point heat tolerance was measured. Egg mortality was highest in the warmest treatment, and hatchlings from the warmest treatment tended to have greater mortality than those from the cooler treatments. Despite evidence that Incubation temperatures were stressful, we found no evidence that Incubation treatment influenced adult heat tolerance. Our results are consistent with a low capacity for organisms to increase their physiological heat tolerance via plasticity, and emphasize the importance of behavioural and evolutionary processes as mechanisms of resilience to extreme heat.
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Egg Incubation temperature does not influence adult heat tolerance in the lizard anolis sagrei
Biology Letters, 2020Co-Authors: Alex R Gunderson, Amelie Fargevieille, Daniel A WarnerAbstract:Extreme heat events are becoming more common as a result of anthropogenic global change. Developmental plasticity in physiological thermal limits could help mitigate the consequences of thermal ext...
Rachel M Santymire - One of the best experts on this subject based on the ideXlab platform.
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Egg Incubation temperature affects development of innate immune function in nestling american robins turdus migratorius
Physiological and Biochemical Zoology, 2020Co-Authors: Loren Merrill, Emilie A Ospina, Rachel M Santymire, Thomas J BensonAbstract:AbstractThe innate immune system provides important first-line defenses against invading pathogens and is considered especially important for developing organisms. However, we know little about how early-life conditions influence these defenses in wild animals. For oviparous species such as birds, embryonic development occurs in the Egg, which can be subject to variation in thermal conditions. There is evidence from cavity-nesting species and species with precocial young that reduced Incubation temperatures can result in reduced measures of innate immunity. Whether and how this thermal variation impacts innate immunity for open-cup-nesting species with altricial offspring has not been examined. In this study, we experimentally manipulated Egg Incubation temperature for American robins (Turdus migratorius) and compared the bacteria-killing ability (BKA) of the nestlings’ blood plasma. We collected baseline and poststressor samples on day 7 and day 10 after hatch to gain additional insights into the ontogen...
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Egg Incubation temperature affects development of innate immune function in nestling american robins turdus migratorius
Physiological and Biochemical Zoology, 2020Co-Authors: Loren Merrill, Rachel M Santymire, Emilie Ospina, Thomas J BensonAbstract:AbstractThe innate immune system provides important first-line defenses against invading pathogens and is considered especially important for developing organisms. However, we know little about how...