Negative Effects of High Temperatures During Development on Immediate Post-Fledging Survival in Great Tits<i>Parus major</i>

Rodríguez, Samuel; Diez‐Méndez, David; Barba, Emilio

doi:10.3161/00016454ao2016.51.2.009

Cited by 24 publications

(15 citation statements)

References 40 publications

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“…(ii) Our experimental temperature manipulation was rather small, which could have either been compensated by maternal brooding (though brooding did not seem to differ among the groups) or simply too small to induce measurable changes in growth. In previous studies, ca 5 ºC elevation led to a decrease in body mass in blue tits (Cyanistes caeruleus, 33) and great tits (Parus major, 41,42) and an increase in body mass in tree swallows (Tachycineta bicolor, 43); (iii) If maternal hormone transfer varies according to environmental context, our egg injection treatment might have resulted in different doses depending on the initial yolk hormone levels.…”

Section: Resultsmentioning

confidence: 79%

Testing for context-dependent effects of maternal thyroid hormones on offspring survival and physiology: an experimental approach manipulating temperature in a wild bird species

Sarraude

Cossin-Sevrin

et al. 2020

Preprint

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Maternal effects via hormonal transfer from the mother to the offspring provide a tool to translate environmental cues to the offspring. Experimental manipulations of maternally transferred hormones have yielded increasingly contradictory results, which may be explained by environment-dependent effects of hormones. Yet context-dependent effects have rarely been experimentally tested. We therefore studied whether maternally transferred thyroid hormones (THs) exert context-dependent effects on offspring survival and physiology by manipulating both egg TH levels and post-hatching nest temperature in wild pied flycatchers (Ficedula hypoleuca) using a full factorial design. We found no clear evidence for context-dependent effects of prenatal THs related to postnatal temperature on growth, survival and potential underlying physiological responses (plasma TH levels, oxidative stress and mitochondrial density). We conclude that future studies should test for other key environmental conditions, such as food availability, to understand potential context-dependent effects of maternally transmitted hormones on offspring, and their role in adapting to changing environments.

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Section: Resultsmentioning

confidence: 79%

Testing for context-dependent effects of maternal thyroid hormones on offspring survival and physiology: an experimental approach manipulating temperature in a wild bird species

Sarraude

Cossin-Sevrin

et al. 2020

Preprint

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“…Surprisingly few studies have experimentally manipulated nest temperature after hatching, and those that have done so were all conducted at relatively high latitudes. Rodríguez and Barba (2016a,b) found that both increased and decreased nest temperature had negative effects on the growth of great tit (Parus major) nestlings in a Mediterranean habitat and that heated nestlings suffered reduced post-fledging survival (Rodríguez et al, 2016). This suggests that natural nest temperature was close to optimal for nestling development.…”

Section: Effects Of Manipulation Of Nest Temperature On Nestling Growmentioning

confidence: 99%

“…(iii) A physiological perspective on behavior: Studies addressing the constraining role of air temperature on avian reproduction would gain from increasingly incorporating thermo-physiological measurement. Because temperatureeffects on nestling development and physiology can be expected to be quadratic, with adverse effects occurring at the warm and cold end of the spectra, such measurements will provide crucial mechanistic depth to observed fitness consequences, such as why heat stress during development sometimes improve short-or long-term survival (Dawson et al, 2005;Andreasson et al, 2018) but at other times negatively affect survival (Rodríguez et al, 2016). (iv) Studies across life histories: It is conceivable that species with different life histories, e.g., slow-or fast-paces of life or resident vs. migratory behavior, will be differentially affected by temperature change.…”

Section: Future Perspectivesmentioning

confidence: 99%

Avian Reproduction in a Warming World

2020

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Weather influences both the distribution and life-history strategies of birds. Temperature ranks amongst the more important weather parameters in this regard since warming springs in temperate and high latitudes and more frequent heatwaves globally have caused major changes in breeding phenology and negatively affected adult and juvenile survival, respectively. Both long-term and stochastic changes in temperature can have fundamental consequences for avian reproduction even when the effects are not lethal, such as via thermal constraints on parental provisioning and chick growth. To date, most of what we know about temperature effects on nestling development and parental effort during reproduction is based on correlative data. In addition, an increasing amount of evidence indicates that temperature change also significantly affects birds that breed in cooler temperate areas, which so far has been somewhat overlooked. Therefore, in this perspective piece, we outline the existing literature on temperature effects on nestling development and parental behavior, with an emphasis on what needs to be done to address the causal effects of temperature change on avian reproduction under climate change. We finish by providing an outlook over future avenues of research, and give suggestions of some specific areas that might be especially promising in developing this field of research.

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“…The challenge may be especially severe for species adapted to relatively narrow temperature ranges (Boyles et al, 2011a;Boyles et al, 2011b), such as birds in the tropic (Huey et al, 2012;Khaliq et al, 2014), and those already operating close to their upper thermal limit such as desert birds (Gerson et al, 2019). However, even birds inhabiting far less extreme, thermally variable, and generally colder habitats, may suffer the negative consequences of acute heat stress (blue tits and great tits (Andreasson et al, 2018;Nord and Nilsson, 2019;Rodriguez et al, 2016).…”

Section: Durant Et Al 2019)mentioning

confidence: 99%

Endocrinology of thermoregulation in birds in a changing climate

Ruuskanen¹,

Hsu²,

Nord³

2019

Preprint

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The ability to maintain a (relatively) stable body temperature in a wide range of thermal environments is a unique feature of endotherms such as birds. Endothermy is acquired and regulated via various endocrine and molecular pathways, and ultimately allows wide aerial, aquatic, and terrestrial distribution in variable environments. However, due to our changing climate, birds are faced with potential new challenges for thermoregulation, such as more frequent extreme weather events, lower predictability of climate, and increasing mean temperature. We provide a compact overview on thermoregulation in birds and its endocrine and molecular mechanisms, pinpointing gaps in current knowledge and recent developments, focusing especially on non-model species to understand the generality of, and variation in, mechanisms. We highlight plasticity in thermoregulation and underlying endocrine regulation, because thorough understanding of plasticity is key to predicting responses to changing environmental conditions. To this end, we discuss how changing climate is likely to affect avian thermoregulation and associated endocrine traits, and how the interplay between these physiological processes may play a role in facilitating or constraining adaptation to a changing climate. We conclude that while the general patterns of endocrine regulation of thermogenesis are quite well understood, at least in poultry, the molecular and endocrine mechanisms that regulate e.g. mitochondria function and plasticity of thermoregulation over different time scales (from transgenerational to daily variation) need to be unveiled. Plasticity may ameliorate climate change effects on thermoregulation to some extent, but the increased frequency of extreme weather events, and associated in resource availability, may be beyond the scope and/or speed for plastic responses. This could lead to selection for more tolerant phenotypes, if the underlying physiological traits harbour genetic and individual variation for selection to act on – a key question for future research.

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Negative Effects of High Temperatures During Development on Immediate Post-Fledging Survival in Great TitsParus major

Cited by 24 publications

References 40 publications

Testing for context-dependent effects of maternal thyroid hormones on offspring survival and physiology: an experimental approach manipulating temperature in a wild bird species

Testing for context-dependent effects of maternal thyroid hormones on offspring survival and physiology: an experimental approach manipulating temperature in a wild bird species

Avian Reproduction in a Warming World

Endocrinology of thermoregulation in birds in a changing climate

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