2019
DOI: 10.18194/ws.00146
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Winter abundance of shorebirds on Humboldt Bay, California, USA

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Cited by 6 publications
(9 citation statements)
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“…An extended reproductive period, with the opportunity for multiple renesting attempts may allow woodcock to better cope with nest failure associated with stochastic weather events as well as predation. The unusually large size of female woodcock relative to males [70] and a total fresh egg mass that is a relatively small percentage of the female's mass [71], combined with a simple nest (scrape lined with leaf litter) and precocial young [58] reduces the relative cost of each nesting attempt and may facilitate the rapid (figure 2 c ), frequent (figure 2 a ), and geographically expansive re-nesting behaviour (figure 2 d ) of this itinerant breeder. The reduced costs of each nesting attempt combined with their reliance on exogenous nutrients for egg laying may also select for woodcock to track seasonally abundant food and nesting cover as they ‘follow the spring thaw north’ (figure 5) much like avian herbivores that ‘ride the green wave’ as they accumulate fat stores on their way to high-latitude breeding areas [16,17].…”
Section: Discussionmentioning
confidence: 99%
“…An extended reproductive period, with the opportunity for multiple renesting attempts may allow woodcock to better cope with nest failure associated with stochastic weather events as well as predation. The unusually large size of female woodcock relative to males [70] and a total fresh egg mass that is a relatively small percentage of the female's mass [71], combined with a simple nest (scrape lined with leaf litter) and precocial young [58] reduces the relative cost of each nesting attempt and may facilitate the rapid (figure 2 c ), frequent (figure 2 a ), and geographically expansive re-nesting behaviour (figure 2 d ) of this itinerant breeder. The reduced costs of each nesting attempt combined with their reliance on exogenous nutrients for egg laying may also select for woodcock to track seasonally abundant food and nesting cover as they ‘follow the spring thaw north’ (figure 5) much like avian herbivores that ‘ride the green wave’ as they accumulate fat stores on their way to high-latitude breeding areas [16,17].…”
Section: Discussionmentioning
confidence: 99%
“…We estimated nest initiation date (date first egg laid) based on the number of eggs if nests were found during egg‐laying (assuming one egg laid per day for all taxa, although plovers may take 1.5 days, Colwell 2006), or by back‐calculating from known hatch date using standard incubation duration. If these two methods could not be used, we employed an egg‐floatation technique to estimate nest initiation (Sandercock 1998, Liebezeit et al 2007, Brown et al 2014).…”
Section: Methodsmentioning
confidence: 99%
“…We could not estimate nest age from a known nest initiation date due to long in-person monitoring intervals (7–10 days). Instead, we backdated initiation dates according to the known laying sequence for the species (Colwell 2006) or from hatch dates. When possible, we were conservative with our estimate of nest age (i.e., we assumed earlier initiation dates when uncertain) and did not consider nests for which we could not estimate nest age because they were found in the incubation phase and did not hatch.…”
Section: Methodsmentioning
confidence: 99%