Tracking a northern fulmar from a Scottish nesting site to the Charlie-Gibbs Fracture Zone: Evidence of linkage between coastal breeding seabirds and Mid-Atlantic Ridge feeding sites

Edwards, Ewan W. J.; Quinn, L.; Wakefield, Ewan D.; Miller, Peter I.; Thompson, Paul M.

doi:10.1016/j.dsr2.2013.04.011

Cited by 29 publications

(16 citation statements)

References 35 publications

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“…2a). Recent tracking work demonstrated that breeding Northern Fulmars may forage many hundreds of kilometres from breeding sites during incubation (Edwards et al 2013). There is also evidence of overlap in wintering areas used by birds from these Scottish and Irish colonies (Quinn 2014).…”

Section: Discussionmentioning

confidence: 99%

Parallel declines in survival of adult Northern Fulmars Fulmarus glacialis at colonies in Scotland and Ireland

Cordes

Hedworth

Cabot³

et al. 2015

Ibis

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Assessing broad‐scale changes in seabird populations across the North Atlantic requires an integration of available datasets to understand the spatial extent of potential drivers and demographic change. Here, we compared survival of Northern Fulmars Fulmarus glacialis from a Scottish and an Irish colony from 1974 to 2009. Despite lower recapture probabilities of monel‐ringed Irish birds compared with colour‐ringed Scottish birds, survival probability decreased at both colonies. The extent to which the decline in survival is related to density‐dependent processes or other external drivers remains uncertain, but our results suggest that these changes in survival are possibly indicative of larger‐scale processes and are not confined to local colony dynamics.

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Section: Discussionmentioning

confidence: 99%

Parallel declines in survival of adult Northern Fulmars Fulmarus glacialis at colonies in Scotland and Ireland

Cordes

Hedworth

Cabot³

et al. 2015

Ibis

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“…Although foraging distance of fulmars can be large (Edwards et al 2013), it may be that the individuals sampled were exhibiting central-place foraging, as found in immature birds following the breeding period in other species (Votier et al 2010;Riotte-Lambert and Weimerskirch 2013). Indeed, sampled fulmars from Svalbard were all of the darker colour phase, of which very few (10 %) are found in the northern North Sea regions in the month prior to sampling (Van Franeker, unpublished).…”

Section: Discussionmentioning

confidence: 99%

Elevated levels of ingested plastic in a high Arctic seabird, the northern fulmar (Fulmarus glacialis)

et al. 2015

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Plastic pollution is of worldwide concern; however, increases in international commercial activity in the Arctic are occurring without the knowledge of the existing threat posed to the local marine environment by plastic litter. Here, we quantify plastic ingestion by northern fulmars, Fulmarus glacialis, from Svalbard, at the gateway to future shipping routes in the high Arctic. Plastic ingestion by Svalbard fulmars does not follow the established decreasing trend away from human marine impact. Of 40 sampled individuals, 35 fulmars (87.5 %) had plastic in their stomachs, averaging at 0.08 g or 15.3 pieces per individual. Plastic ingestion levels on Svalbard exceed the ecological quality objective defined by OSPAR for European seas. This highlights an urgent need for mitigation of plastic pollution in the Arctic as well as international regulation of future commercial activity.

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“…Prior to diving, gannets typically slow their flight and increase their path sinuosity (Wakefield et al., ; Bodey et al., ; Patrick et al., ; Warwick‐Evans et al., ). The relationship between slow speed during search and prey capture attempts has been established both theoretically (Bartoń & Hovestadt, ; Benhamou, ) and empirically in a variety of mobile marine and terrestrial species (Anderson & Lindzey, ; Byrne & Chamberlain, ; Edwards, Quinn, Wakefield, Miller, & Thompson, ; McCarthy, Heppell, Royer, Freitas, & Dellinger, ; Towner et al., ; Wakefield et al., ; Williams et al., ). Such changes in movement and clearly identifiable prey capture attempts in the form of dives (Cleasby et al., ; Garthe, Benvenuti, & Montevecchi, ), as well as their ability to carry multiple devices and ease of recapture, make gannets a suitable model species to explore the ability of movement‐based analysis to identify search behavior and prey capture attempts.…”

Section: Introductionmentioning

confidence: 99%

Search and foraging behaviors from movement data: A comparison of methods

Bennison

Bearhop

Bodey

et al. 2017

Ecology and Evolution

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Search behavior is often used as a proxy for foraging effort within studies of animal movement, despite it being only one part of the foraging process, which also includes prey capture. While methods for validating prey capture exist, many studies rely solely on behavioral annotation of animal movement data to identify search and infer prey capture attempts. However, the degree to which search correlates with prey capture is largely untested. This study applied seven behavioral annotation methods to identify search behavior from GPS tracks of northern gannets (Morus bassanus), and compared outputs to the occurrence of dives recorded by simultaneously deployed time–depth recorders. We tested how behavioral annotation methods vary in their ability to identify search behavior leading to dive events. There was considerable variation in the number of dives occurring within search areas across methods. Hidden Markov models proved to be the most successful, with 81% of all dives occurring within areas identified as search. k‐Means clustering and first passage time had the highest rates of dives occurring outside identified search behavior. First passage time and hidden Markov models had the lowest rates of false positives, identifying fewer search areas with no dives. All behavioral annotation methods had advantages and drawbacks in terms of the complexity of analysis and ability to reflect prey capture events while minimizing the number of false positives and false negatives. We used these results, with consideration of analytical difficulty, to provide advice on the most appropriate methods for use where prey capture behavior is not available. This study highlights a need to critically assess and carefully choose a behavioral annotation method suitable for the research question being addressed, or resulting species management frameworks established.

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Tracking a northern fulmar from a Scottish nesting site to the Charlie-Gibbs Fracture Zone: Evidence of linkage between coastal breeding seabirds and Mid-Atlantic Ridge feeding sites

Cited by 29 publications

References 35 publications

Parallel declines in survival of adult Northern Fulmars Fulmarus glacialis at colonies in Scotland and Ireland

Parallel declines in survival of adult Northern Fulmars Fulmarus glacialis at colonies in Scotland and Ireland

Elevated levels of ingested plastic in a high Arctic seabird, the northern fulmar (Fulmarus glacialis)

Search and foraging behaviors from movement data: A comparison of methods

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