Selective mortality of waders during severe weather

Clark, Jacquie A.

doi:10.1080/00063650802648465

Cited by 22 publications

(17 citation statements)

References 29 publications

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“…Differential survival according to body size has also been observed in mammals, although the evidence is limited to a few species (Milner et al 1999;SchulteHostedde et al 2002). In contrast, survival selection acting on body size has been relatively well documented in birds (Monaghan and Metcalfe 1986;Davies et al 1988;Wiggins 1991;Barbraud 2000;Björklund and Sennar 2001;Rotella et al 2003;Hall et al 2004), particularly following extreme climatic events (Boag and Grant 1981;Jones 1987;Brown and Brown 1998;Acquarone et al 2004;Clark 2009) or epidemic outbreaks (Nolan et al 1998).…”

Section: Introductionmentioning

confidence: 88%

Adult survival selection in relation to multilocus heterozygosity and body size in a tropical bird species, the Zenaida dove, Zenaida aurita

Cézilly¹,

Quinard²,

Motreuil³

et al. 2015

Oecologia

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Both phenotypic and genetic quality can influence the survival of individuals through time, although their relative influences are rarely addressed simultaneously. Here we used capture-mark-recapture modelling to assess the influence of both multilocus heterozygosity (MLH) and body size on apparent adult survival in a tropical bird species, the Zenaida dove, Zenaida aurita, using a sample of 391 individuals genotyped at 11 microsatellites, while controlling for the effects of sex. No effect of body size on either adult survival or capture rate was found. In the best model, survival was a logit linear function of MLH, whereas detection probability was a sex-dependent logit linear function of the logarithm of field effort, increasing with time and affected by a random individual effect. Using a Bayesian approach, we found that MLH explained 1.14% of the total deviance, as expected from theory and previous studies of heterozygosity-fitness correlations, with no evidence for local effects. However, results from capture-mark-recapture modelling indicated that expected longevity varied from 4.8 years in the least heterozygous individuals (MLH = 0.37) to 10.6 years in the most heterozygous ones (MLH = 1), thus suggesting that MLH had potentially a substantial effect on survival. We discuss our results in relation to current hypotheses about the origin of heterozygosity-fitness correlations.

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Section: Introductionmentioning

confidence: 88%

Adult survival selection in relation to multilocus heterozygosity and body size in a tropical bird species, the Zenaida dove, Zenaida aurita

Cézilly¹,

Quinard²,

Motreuil³

et al. 2015

Oecologia

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“…Wader mortality has been shown to substantially increase during periods of very cold weather (Dugan et al 1981, Davidson & Evans 1982, Davidson & Clark 1985, Clark 2004, 2009). The freezing temperatures affect the birds directly, by increasing metabolic stress (Dugan et al 1981, McCulloch & Clark 1992, Thompson & Hale 1993, Burton & Evans 1997, Warnock et al 1997, Kelly et al 2002 and indirectly, by affecting the behaviour of their prey (Goss-Custard 1969, Davidson 1981, as well as occasionally freezing the surface of the upper tidal mudflats (Thompson & Hale 1993).…”

Section: Severe Cold Weather Effectsmentioning

confidence: 99%

Weather conditions and conspecific density influence survival of overwintering DunlinCalidris alpinain North Wales

2015

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“…Extreme climatic events include heat and cold waves and periods with extreme low or high rainfall (Bailey & Pol, 2016). In general larger animals can withstand these stressful conditions better because they have greater energy or water reserves (Brown & Brown, 1999;Clark, 2009;McKechnie & Wolf, 2010). Thus an increase in the frequency of extreme events may lead to a trend of increases in body size, the so-called starvation risk or fasting endurance hypothesis (Goodman et al, 2012).…”

Section: Temporal Changes In Body Sizementioning

confidence: 99%

Are long‐term widespread avian body size changes related to food availability? A test using contemporaneous changes in carotenoid‐based color

Little

Gardner

Amano

et al. 2017

Ecology and Evolution

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Recent changes in global climate have been linked with changes in animal body size. While declines in body size are commonly explained as an adaptive thermoregulatory response to climate warming, many species do not decline in size, and alternative explanations for size change exist. One possibility is that temporal changes in animal body size are driven by changes in environmental productivity and food availability. This hypothesis is difficult to test due to the lack of suitable estimates that go back in time. Here, we use an alternative, indirect, approach and assess whether continent‐wide changes over the previous 100 years in body size in 15 species of Australian birds are associated with changes in their yellow carotenoid‐based plumage coloration. This type of coloration is strongly affected by food availability because birds cannot synthesize carotenoids and need to ingest them, and because color expression depends on general body condition. We found significant continent‐wide intraspecific temporal changes in body size (wing length) and yellow carotenoid‐based color (plumage reflectance) for half the species. Direction and magnitude of changes were highly variable among species. Meta‐analysis indicated that neither body size nor yellow plumage color showed a consistent temporal trend and that changes in color were not correlated with changes in size over the past 100 years. We conclude that our data provide no evidence that broad‐scale variation in food availability is a general explanation for continent‐wide changes in body size in this group of species. The interspecific variability in temporal changes in size as well as color suggests that it might be unlikely that a single factor drives these changes, and more detailed studies of museum specimens and long‐term field studies are required to disentangle the processes involved.

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Selective mortality of waders during severe weather

Cited by 22 publications

References 29 publications

Adult survival selection in relation to multilocus heterozygosity and body size in a tropical bird species, the Zenaida dove, Zenaida aurita

Adult survival selection in relation to multilocus heterozygosity and body size in a tropical bird species, the Zenaida dove, Zenaida aurita

Weather conditions and conspecific density influence survival of overwintering DunlinCalidris alpinain North Wales

Are long‐term widespread avian body size changes related to food availability? A test using contemporaneous changes in carotenoid‐based color

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