The effects of daily weather variation on foraging and responsiveness to disturbance in overwintering Red Knot Calidris canutus
We studied Red Knot Calidris canutus foraging on intertidal mudflats that were subject to attacks by Peregrine Falcons Falco peregrinus. Foraging rate and position with respect to cover that a predator might use was unaffected by weather, but responsiveness of Red Knots to predators and other distur...
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/19c5cf02-cd5a-4814-b56e-15603d4950d7 2024-06-23T07:51:55+00:00 The effects of daily weather variation on foraging and responsiveness to disturbance in overwintering Red Knot Calidris canutus McGowan, A Cresswell, Will Ruxton, GD 2002 https://research-portal.st-andrews.ac.uk/en/researchoutput/the-effects-of-daily-weather-variation-on-foraging-and-responsiveness-to-disturbance-in-overwintering-red-knot-calidris-canutus(19c5cf02-cd5a-4814-b56e-15603d4950d7).html eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/the-effects-of-daily-weather-variation-on-foraging-and-responsiveness-to-disturbance-in-overwintering-red-knot-calidris-canutus(19c5cf02-cd5a-4814-b56e-15603d4950d7).html info:eu-repo/semantics/restrictedAccess McGowan , A , Cresswell , W & Ruxton , GD 2002 , ' The effects of daily weather variation on foraging and responsiveness to disturbance in overwintering Red Knot Calidris canutus ' , Ardea , vol. 90 , pp. 229-237 . Calidris canutus wader raptor trade-off foraging predation risk weather REDSHANKS STRATEGY FLOCKING HABITAT FOOD article 2002 ftunstandrewcris 2024-06-13T00:30:24Z We studied Red Knot Calidris canutus foraging on intertidal mudflats that were subject to attacks by Peregrine Falcons Falco peregrinus. Foraging rate and position with respect to cover that a predator might use was unaffected by weather, but responsiveness of Red Knots to predators and other disturbances increased with both windspeed and air temperature. These results are interpreted within the framework of birds seeking a strategy that minimises the sum of mortality risks from predation and starvation. We also found that foraging success (measured as the probability that a probe in the substrate yields an observed food item) increased with an increase in temperature. Article in Journal/Newspaper Calidris canutus Falco peregrinus Red Knot University of St Andrews: Research Portal |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Calidris canutus wader raptor trade-off foraging predation risk weather REDSHANKS STRATEGY FLOCKING HABITAT FOOD |
spellingShingle |
Calidris canutus wader raptor trade-off foraging predation risk weather REDSHANKS STRATEGY FLOCKING HABITAT FOOD McGowan, A Cresswell, Will Ruxton, GD The effects of daily weather variation on foraging and responsiveness to disturbance in overwintering Red Knot Calidris canutus |
topic_facet |
Calidris canutus wader raptor trade-off foraging predation risk weather REDSHANKS STRATEGY FLOCKING HABITAT FOOD |
description |
We studied Red Knot Calidris canutus foraging on intertidal mudflats that were subject to attacks by Peregrine Falcons Falco peregrinus. Foraging rate and position with respect to cover that a predator might use was unaffected by weather, but responsiveness of Red Knots to predators and other disturbances increased with both windspeed and air temperature. These results are interpreted within the framework of birds seeking a strategy that minimises the sum of mortality risks from predation and starvation. We also found that foraging success (measured as the probability that a probe in the substrate yields an observed food item) increased with an increase in temperature. |
format |
Article in Journal/Newspaper |
author |
McGowan, A Cresswell, Will Ruxton, GD |
author_facet |
McGowan, A Cresswell, Will Ruxton, GD |
author_sort |
McGowan, A |
title |
The effects of daily weather variation on foraging and responsiveness to disturbance in overwintering Red Knot Calidris canutus |
title_short |
The effects of daily weather variation on foraging and responsiveness to disturbance in overwintering Red Knot Calidris canutus |
title_full |
The effects of daily weather variation on foraging and responsiveness to disturbance in overwintering Red Knot Calidris canutus |
title_fullStr |
The effects of daily weather variation on foraging and responsiveness to disturbance in overwintering Red Knot Calidris canutus |
title_full_unstemmed |
The effects of daily weather variation on foraging and responsiveness to disturbance in overwintering Red Knot Calidris canutus |
title_sort |
effects of daily weather variation on foraging and responsiveness to disturbance in overwintering red knot calidris canutus |
publishDate |
2002 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/the-effects-of-daily-weather-variation-on-foraging-and-responsiveness-to-disturbance-in-overwintering-red-knot-calidris-canutus(19c5cf02-cd5a-4814-b56e-15603d4950d7).html |
genre |
Calidris canutus Falco peregrinus Red Knot |
genre_facet |
Calidris canutus Falco peregrinus Red Knot |
op_source |
McGowan , A , Cresswell , W & Ruxton , GD 2002 , ' The effects of daily weather variation on foraging and responsiveness to disturbance in overwintering Red Knot Calidris canutus ' , Ardea , vol. 90 , pp. 229-237 . |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/the-effects-of-daily-weather-variation-on-foraging-and-responsiveness-to-disturbance-in-overwintering-red-knot-calidris-canutus(19c5cf02-cd5a-4814-b56e-15603d4950d7).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1802643066617593856 |