Can differences in incubation patterns of Common Redshanks Tringa totanus be explained by variations in predation risk?

Cervencl, Anja; Esser, Wiebke; Maier, Martin; Oberdiek, Nadine; Thyen, Stefan; Wellbrock, Arndt H. J.; Exo, Klaus‐Michael

doi:10.1007/s10336-011-0696-z

Cited by 25 publications

(29 citation statements)

References 40 publications

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“…For wild turkeys in our study, decreased movements during the beginning and end of the incubation period may be associated with level of predation risk, and the trade‐off between nest success and individual survival. Wild turkeys are thought to maximize individual survival relative to nest survival (Collier et al, ), so in systems with increased predation risk, we would expect that individuals choosing to maximize survival over reproduction would make movements farther from nest sites during incubation (Behrens, Ruff, Harms, & Dinsmore, ; Cervencl et al, ; Smith et al, ). We speculate that as nests near the expected hatch dates, perhaps, females are more likely to prioritize reproductive success over individual survival.…”

Section: Discussionmentioning

confidence: 99%

Incubation recess behaviors influence nest survival of Wild Turkeys

Bakner

Schofield

Cedotal

et al. 2019

Ecology and Evolution

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In ground nesting upland birds, reproductive activities contribute to elevated predation risk, so females presumably use multiple strategies to ensure nest success. Identification of drivers reducing predation risk has primarily focused on evaluating vegetative conditions at nest sites, but behavioral decisions manifested through movements during incubation may be additional drivers of nest survival. However, our understanding of how movements during incubation impact nest survival is limited for most ground nesting birds. Using GPS data collected from female Eastern Wild Turkeys (n = 206), we evaluated nest survival as it relates to movement behaviors during incubation, including recess frequency, distance traveled during recesses, and habitat selection during recess movements. We identified 9,361 movements off nests and 6,529 recess events based on approximately 62,065 hr of incubation data, and estimated mean nest attentiveness of 84.0%. The numbers of recesses taken daily were variable across females (range: 1‒7). Nest survival modeling indicated that increased cumulative distance moved during recesses each day was the primary driver of positive daily nest survival. Our results suggest behavioral decisions are influencing trade‐offs between nest survival and adult female survival during incubation to reduce predation risk, specifically through adjustments to distances traveled during recesses.

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Section: Discussionmentioning

confidence: 99%

Incubation recess behaviors influence nest survival of Wild Turkeys

Bakner

Schofield

Cedotal

et al. 2019

Ecology and Evolution

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“…In addition to reducing clutch predation (Kreisinger & Albrecht , Cervencl et al . ) and brood parasitism (Kendra et al . , Clotfelter & Yasukawa ), intermittent incubation has been widely documented (reviewed by Wang & Beissinger ) as improving hatching success, particularly in birds that delay incubation until the penultimate egg has been laid (Wiebe et al .…”

Section: Discussionmentioning

confidence: 99%

Effect of intermittent incubation and clutch covering on the probability of bacterial trans‐shell infection

Javůrková

Albrecht

Mrázek

et al. 2013

Ibis

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Microbial infection is considered a critical cause of hatching failure in birds. Although several behavioural mechanisms are believed to improve reproductive success in birds, their direct effect on the risk of bacterial trans‐shell infection (BTSI) remains to be tested. Here, we focus on the protective roles of intermittent incubation and covering of the clutch with nest lining during the laying period, when eggs are highly susceptible to BTSI. To our knowledge, this study is the first to use culture‐independent PCR‐based methods to measure quantitative and qualitative indices of BTSI. In our experiment, we exposed Mallard Anas platyrhynchos eggs that were either intermittently incubated (I‐INCUB) or un‐incubated (I‐UNINCUB), and covered (COV) or uncovered (UNCOV) with nest lining. Hatchability of I‐INCUB eggs was twice that for I‐UNINCUB eggs. The presence and degree of BTSI had no effect on hatching success of experimental eggs. The residual weights of ducklings hatched from infected and I‐INCUB eggs were lower than those from uninfected and I‐UNINCUB eggs. In addition, ducklings originating from COV eggs were heavier than those hatched from UNCOV eggs. Intermittent incubation and clutch covering had no effect on the probability or degree of BTSI. Although the effect of BTSI is considered less detrimental in temperate birds, we show that the presence of BTSI inside the egg may significantly affect hatchling phenotype. This represents a novel insight into the role of BTSI in the reproductive success of birds and implies that the use of molecular PCR‐based methods is required in future studies for a better understanding of such causality.

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“…Our method will now allow us to address exciting new questions about the ecology of breeding strategies. For example, we can now assess whether and how shorebirds adjust their breeding strategy (uniparental vs. biparental incubation in the case of Sanderling) in relation to experienced predation pressure (for changes in nest attendance, see Cervencl et al 2011). This would require monitoring both the ratio of uniparentally and biparentally incubated nests at different levels of predation pressure and the respective survival rate of nests in each strategy.…”

Section: Discussionmentioning

confidence: 99%

Discriminating uniparental and biparental breeding strategies by monitoring nest temperature

Moreau

Perroud

Bollache

et al. 2017

Ibis

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Birds exhibit a wide diversity of breeding strategies. During incubation or chick-rearing, parental care can be either uniparental, by either the male or the female, or biparental. Understanding the selective pressures that drive these different strategies represents an exciting challenge for ecologists. In this context, assigning the type of parental care at the nest (e.g. biparental or uniparental incubation strategy) is often a prerequisite to answering questions in evolutionary ecology. The aim of this study was to produce a standardized method unequivocally to assign an incubation strategy to any Sanderling Calidris alba nest found in the field by monitoring nest temperature profiles. Using drops of >3°C in nest temperature (recorded with thermistors) to distinguish incubation and recess periods, we showed that the number of recesses and the total duration of these recesses from 09:00 to 17:00 h UTC allowed us reliably (99.1% after 24 h and 100% when monitoring the nest for at least 4 days) to assign the incubation strategy at the nest for 21 breeding adults (14 nests). Monitoring nest temperature for at least 24 h is an effective method to assign an incubation strategy without having to re-visit nests, thereby saving time in the field and minimizing both disturbance and related increase in predation risk of clutches. Given the advantages of our method, we suggest that it should be used more widely in studies that aim to document incubation strategies and patterns in regions where ambient temperatures are at least 3°C below the median nest temperature.

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Can differences in incubation patterns of Common Redshanks Tringa totanus be explained by variations in predation risk?

Cited by 25 publications

References 40 publications

Incubation recess behaviors influence nest survival of Wild Turkeys

Incubation recess behaviors influence nest survival of Wild Turkeys

Effect of intermittent incubation and clutch covering on the probability of bacterial trans‐shell infection

Discriminating uniparental and biparental breeding strategies by monitoring nest temperature

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