scholarly journals Short-term prey field lability constrains individual specialisation in resource selection and foraging site fidelity in a marine predator

2018 ◽  
Vol 21 (7) ◽  
pp. 1043-1054 ◽  
Author(s):  
Nicolas Courbin ◽  
Aurélien Besnard ◽  
Clara Péron ◽  
Claire Saraux ◽  
Jérôme Fort ◽  
...  
Keyword(s):  
Resource Selection ◽  
Site Fidelity ◽  
Short Term ◽  
Marine Predator ◽  
Foraging Site ◽  
Individual Specialisation

scholarly journals Personality predicts foraging site fidelity and trip repeatability in a marine predator

2019 ◽  
Vol 89 (1) ◽  
pp. 68-79 ◽  
Author(s):  
Stephanie M. Harris ◽  
Sébastien Descamps ◽  
Lynne U. Sneddon ◽  
Philip Bertrand ◽  
Olivier Chastel ◽  
...  
Keyword(s):  
Site Fidelity ◽  
Marine Predator ◽  
Foraging Site

scholarly journals Effects of age and reproductive status on individual foraging site fidelity in a long-lived marine predator

2017 ◽  
Vol 284 (1859) ◽  
pp. 20171068 ◽  
Author(s):  
Stephen C. Votier ◽  
Annette L. Fayet ◽  
Stuart Bearhop ◽  
Thomas W. Bodey ◽  
Bethany L. Clark ◽  
...  
Keyword(s):  
Site Fidelity ◽  
Foraging Strategies ◽  
Common Component ◽  
Small Component ◽  
Phenotypic Differences ◽  
Marine Predator ◽  
Global Positioning ◽  
Foraging Site ◽  
Foraging Ability ◽  
Foraging Specialization

Individual foraging specializations, where individuals use a small component of the population niche width, are widespread in nature with important ecological and evolutionary implications. In long-lived animals, foraging ability develops with age, but we know little about the ontogeny of individuality in foraging. Here we use precision global positioning system (GPS) loggers to examine how individual foraging site fidelity (IFSF), a common component of foraging specialization, varies between breeders, failed breeders and immatures in a long-lived marine predator—the northern gannet Morus bassanus . Breeders (aged 5+) showed strong IFSF: they had similar routes and were faithful to distal points during successive trips. However, centrally placed immatures (aged 2–3) were far more exploratory and lacked route or foraging site fidelity. Failed breeders were intermediate: some with strong fidelity, others being more exploratory. Individual foraging specializations were previously thought to arise as a function of heritable phenotypic differences or via social transmission. Our results instead suggest a third alternative—in long-lived species foraging sites are learned during exploratory behaviours early in life, which become canalized with age and experience, and refined where possible—the exploration-refinement foraging hypothesis. We speculate similar patterns may be present in other long-lived species and moreover that long periods of immaturity may be a consequence of such memory-based individual foraging strategies.

scholarly journals Recent prey capture experience and dynamic habitat quality mediate short-term foraging site fidelity in a seabird

2018 ◽  
Vol 285 (1883) ◽  
pp. 20180788 ◽  
Author(s):  
Gemma Carroll ◽  
Robert Harcourt ◽  
Benjamin J. Pitcher ◽  
David Slip ◽  
Ian Jonsen
Keyword(s):  
Habitat Quality ◽  
Site Fidelity ◽  
Prey Capture ◽  
Dynamic Environment ◽  
Adaptive Strategy ◽  
Short Term ◽  
Foraging Site ◽  
Dynamic Habitat ◽  
Combine Information ◽  
Lower Site

Foraging site fidelity allows animals to increase their efficiency by returning to profitable feeding areas. However, the mechanisms underpinning why animals ‘stay’ or ‘switch’ sites have rarely been investigated. Here, we explore how habitat quality and prior prey capture experience influence short-term site fidelity by the little penguin ( Eudyptula minor ). Using 88 consecutive foraging trips by 20 brooding penguins, we found that site fidelity was higher after foraging trips where environmental conditions were favourable, and after trips where prey capture success was high. When penguins exhibited lower site fidelity, the number of prey captures relative to the previous trip increased, suggesting that switches in foraging location were an adaptive strategy in response to low prey capture rates. Penguins foraged closer to where other penguins foraged on the same day than they did to the location of their own previous foraging site, and caught more prey when they foraged close together. This suggests that penguins aggregated flexibly when prey was abundant and accessible. Our results illustrate how foraging predators can integrate information about prior experience with contemporary information such as social cues. This gives insight into how animals combine information adaptively to exploit changing prey distribution in a dynamic environment.

scholarly journals Long-term individual foraging site fidelity—why some gannets don't change their spots

Ecology ◽  
2015 ◽  
Vol 96 (11) ◽  
pp. 3058-3074 ◽  
Author(s):  
Ewan D. Wakefield ◽  
Ian R. Cleasby ◽  
Stuart Bearhop ◽  
Thomas W. Bodey ◽  
Rachel D. Davies ◽  
...  
Keyword(s):  
Site Fidelity ◽  
Foraging Site

Design and Analysis of a Short-Term Sensing-Based Resource Selection Scheme for C-V2X Networks

2020 ◽  
Vol 7 (11) ◽  
pp. 11209-11222
Author(s):  
Xinxin He ◽  
Jie Lv ◽  
Jiaqi Zhao ◽  
Xiaolin Hou ◽  
Tao Luo
Keyword(s):  
Resource Selection ◽  
Short Term ◽  
Selection Scheme

Individual movements between local coastal populations of bottlenose dolphins (Tursiops truncatus) in the northern and eastern Black Sea

2016 ◽  
Vol 98 (2) ◽  
pp. 223-229 ◽  
Author(s):  
Elena Gladilina ◽  
Olga Shpak ◽  
Valentin Serbin ◽  
Anna Kryukova ◽  
Dmitry Glazov ◽  
...  
Keyword(s):  
Black Sea ◽  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Site Fidelity ◽  
Bottlenose Dolphins ◽  
The Black Sea ◽  
Small Range ◽  
Short Term ◽  
High Population Growth ◽  
Physical Barriers

The Black Sea subspecies of the bottlenose dolphin (Tursiops truncatus ponticus) is threatened and has a small range. Its population structure is little known: it possibly includes a few local coastal populations. We assessed connectivity between coastal groupings in six localities along 800 km of the coastline based on records of photo-identified animals between 2004 and 2014. Abundance of these groupings, as estimated, ranged between 76 and 174 individually distinctive dolphins. In total, there were 350 identified individuals, of which 91 (26%) were resighted within the same areas. However, only three cases of individual movements between local coastal populations were recorded at the distances between 135 and 325 km. Therefore, despite the absence of physical barriers, the coastal Black Sea population is fragmented into numerous resident or locally migrating groupings with site fidelity. These local populations are loosely connected to each other with rare movements between them. This fragmentation can be a factor contributing to short-term fluctuations in abundance of Black Sea bottlenose dolphins and their decline in some localities, despite the potentially high population growth rate.

Monitoring the effect of habitat loss on life-cycle aspects of the Masked Owl Tyto novaehollandiae in a semi-urban landscape

2020 ◽  
Vol 40 (4) ◽  
pp. 565-574
Author(s):  
Chris N. Thomson
Keyword(s):  
Site Fidelity ◽  
Large Scale ◽  
Urban Landscape ◽  
Negative Impact ◽  
Urban Expansion ◽  
Short Term ◽  
Breeding Activity ◽  
Breeding Territory ◽  
Term Monitoring

Long-term monitoring of the Masked Owl Tyto novaehollandiae in a semi-urban landscape before, during and after large-scale habitat removal identified a positive response in breeding activity in the short-term and a change in prey selectivity. Over the longer term, the loss in habitat had a negative impact on site fidelity. A pair of Masked Owls exhibited high fidelity to a particular breeding territory before and during the removal of large areas of habitat within this territory. Breeding success occurred over two consecutive seasons during the removal of known habitat and other disturbance events at which time the pair and their offspring were observed to exploit disturbed habitat and newly created forest edges in search of prey. Breeding activity was supported by an increased dietary focus on introduced rodents and other mammals displaced during habitat clearing. Fidelity to the breeding territory became more irregular post-disturbance and after two years the territory appeared to be abandoned. This response may suggest that the cumulative loss of habitat for established pairs as a result of urban expansion is likely to adversely affect reproductive success and site fidelity in the longer term.

Individual foraging site fidelity in lactating New Zealand fur seals: Continental shelf vs. oceanic habitats

2011 ◽  
Vol 28 (2) ◽  
pp. 276-294 ◽  
Author(s):  
Alastair M. M. Baylis ◽  
Brad Page ◽  
Jane McKenzie ◽  
Simon D. Goldsworthy
Keyword(s):  
New Zealand ◽  
Continental Shelf ◽  
Site Fidelity ◽  
Fur Seals ◽  
Foraging Site
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