A colonial-nesting seabird shows no heart-rate response to drone-based population surveys

EA Geldart, AF Barnas, CAD Semeniuk, HG Gilchrist… - Scientific Reports, 2022 - nature.com
Aerial drones are increasingly being used as tools for ecological research and wildlife
monitoring in hard-to-access study systems, such as in studies of colonial-nesting birds …

To breed or not to breed: drivers of intermittent breeding in a seabird under increasing predation risk and male bias

M Öst, A Lindén, P Karell, S Ramula, M Kilpi - Oecologia, 2018 - Springer
Intermittent breeding may be adaptive for long-lived species subjected to large accessory
reproductive costs, but it may also reflect reduced adaptation to the environment, reducing …

Should I breed or should I go? Manipulating individual state during migration influences breeding decisions in a long‐lived bird species

T Grandmont, P Fast, I Grentzmann… - Functional …, 2023 - Wiley Online Library
Documentation of carry‐over effects (COEs), defined as effects resulting from events that
occurred in a previous time period, has largely been observational and understanding of …

Earlier springs increase goose breeding propensity and nesting success at Arctic but not at temperate latitudes

MP Boom, KHT Schreven, NH Buitendijk… - Journal of Animal …, 2023 - Wiley Online Library
Intermittent breeding is an important tactic in long‐lived species that trade off survival and
reproduction to maximize lifetime reproductive success. When breeding conditions are …

Favorable spring conditions can buffer the impact of winter carryover effects on a key breeding decision in an Arctic‐breeding seabird

RJ Steenweg, GT Crossin, HL Hennin… - Ecology and …, 2022 - Wiley Online Library
The availability and investment of energy among successive life‐history stages is a key
feature of carryover effects. In migratory organisms, examining how both winter and spring …

Heightened heart rate but similar flight responses to evolved versus recent predators in an Arctic seabird

EA Geldart, OP Love, HG Gilchrist… - Avian Conservation …, 2023 - scholar.uwindsor.ca
Predator-prey dynamics in the Arctic are being altered with changing sea ice phenology.
The increasing frequency of predation on colonial nesting seabirds and their eggs by the …

A colonial-nesting seabird shows limited heart rate responses to natural variation in threats of polar bears

EA Geldart, OP Love, AF Barnas… - Royal Society …, 2023 - royalsocietypublishing.org
Several predator–prey systems are in flux as an indirect result of climate change. In the
Arctic, earlier sea-ice loss is driving polar bears (Ursus maritimus) onto land when many …

Fitness consequences of peak reproductive effort in a resource pulse system

A Hämäläinen, AG McAdam, B Dantzer, JE Lane… - Scientific Reports, 2017 - nature.com
The age trajectory of reproductive performance of many iteroparous species features an
early-life increase in performance followed by a late-life senescent decline. The largest …

Higher rates of prebreeding condition gain positively impacts clutch size: A mechanistic test of the condition‐dependent individual optimization model

HL Hennin, CJ Dey, J Bêty, HG Gilchrist… - Functional …, 2018 - Wiley Online Library
A combination of timing of and body condition (ie, mass) at arrival on the breeding grounds
interact to influence the optimal combination of the timing of reproduction and clutch size in …

Posthatching parental care and offspring growth vary with maternal corticosterone level in a wild bird population

EK Bowers, CF Thompson… - Physiological and …, 2019 - journals.uchicago.edu
Corticosterone is the primary metabolic steroid in birds and is vital for maintaining
homeostasis. However, the relationship between baseline corticosterone and reproduction …