Philosophical transactions of the Royal Society of London. Series B, Biological sciences最新文献

Locomotion and hunting strategies of large vertebrate predators in pelagic waters. 远洋水域大型脊椎动物捕食者的运动和捕猎策略。

IF 4.7

Philosophical transactions of the Royal Society of London. Series B, Biological sciences Pub Date : 2026-10-15 DOI: 10.1098/rstb.2025.0194

Paolo Domenici, Federica Spina, Eve Jourdain

{"title":"Locomotion and hunting strategies of large vertebrate predators in pelagic waters.","authors":"Paolo Domenici, Federica Spina, Eve Jourdain","doi":"10.1098/rstb.2025.0194","DOIUrl":"10.1098/rstb.2025.0194","url":null,"abstract":"Many of the key dynamics that shape predator-prey interactions are governed by the physical and physiological principles which determine how animals move and perform in their environments. This opinion paper outlines the foundations underlying marine vertebrate predator-prey encounters within the context of pelagic habitats. Variables, such as maximum swimming speed, acceleration and manoeuvrability, play crucial roles in dictating the outcome of predator-prey encounters. In pelagic areas, sustainable swimming speed is an additional factor that can play an important role when chases occur. These locomotor traits are, in turn, influenced by body size, morphology and physiology. For predator-prey size ratio between 10 and 100, predators resort to a number of alternative strategies in order to overcome the elusiveness of the prey resulting from their higher manoeuvrability. These include pursuit leading to prey exhaustion, group hunting and the use of weapons. The framework of how physiological, physical and scaling rules affect pelagic predator-prey systems is a useful tool for investigating multi-predator feeding aggregations, where the relative success and potential competition between each predator species will be dictated by the potential strategies available to them within the scope of their performance limits. This article is part of the theme issue 'Multi-predator feeding aggregations in the pelagic waters'.","PeriodicalId":520748,"journal":{"name":"Philosophical transactions of the Royal Society of London. Series B, Biological sciences","volume":"381 1961","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13670077/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The presence of mahi-mahi at multi-predator feeding aggregations modifies striped marlin attack behaviour. 在多捕食者的觅食聚集中，鲯鳅的出现改变了条纹马林鱼的攻击行为。

IF 4.7

Philosophical transactions of the Royal Society of London. Series B, Biological sciences Pub Date : 2026-10-15 DOI: 10.1098/rstb.2025.0196

Matthew J Hansen, Palina Bartashevich, Pia Bideau, Fritz A Francisco, David James, Max Licht, Félicie Dhellemmes, Alicia L Burns, Hector Villalobos-Ortiz, Sofia Ortega-Garcia, Felipe Galván-Magaña, Rogelio González-Armas, Fernando R Elorriaga-Verplanken, Jens Krause

{"title":"The presence of mahi-mahi at multi-predator feeding aggregations modifies striped marlin attack behaviour.","authors":"Matthew J Hansen, Palina Bartashevich, Pia Bideau, Fritz A Francisco, David James, Max Licht, Félicie Dhellemmes, Alicia L Burns, Hector Villalobos-Ortiz, Sofia Ortega-Garcia, Felipe Galván-Magaña, Rogelio González-Armas, Fernando R Elorriaga-Verplanken, Jens Krause","doi":"10.1098/rstb.2025.0196","DOIUrl":"10.1098/rstb.2025.0196","url":null,"abstract":"Terrestrial multi-species predator feeding aggregations (MPFAs) are characterized by contest competition, but scramble competition is likely more common at MPFAs in pelagic waters. However, empirical investigations are rare. Aerial video was used to estimate abundances of striped marlin and mahi-mahi alongside their attack and capture rates and spatio-temporal positioning as they competed at prey schools. Mahi-mahi had higher capture efficiencies than marlin, and the presence of marlin did not affect mahi-mahi predatory behaviour. Conversely, the presence of mahi-mahi in smaller abundances may benefit marlin. Marlin attack rates on the school were not affected by mahi-mahi presence, but net capture rates increased, likely explained by a shift in marlin hunting dynamics where marlin increased the proportion of their total captures that were individual fish isolated from the prey school. Estimated abundances of mahi-mahi, however, showed a negative relationship with marlin abundance. As mahi-mahi monopolized the space closest to the prey school, where they made rapid and efficient attacks on the prey school, in large abundances they may interfere with marlin hunting behaviour, causing them to abandon the hunt. The persistence of scramble or contest competition at MPFAs in pelagic waters may therefore be partially modulated by group size. This article is part of the theme issue 'Multi-predator feeding aggregations in pelagic waters'.","PeriodicalId":520748,"journal":{"name":"Philosophical transactions of the Royal Society of London. Series B, Biological sciences","volume":"381 1961","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13670072/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Agonistic interactions and vocalizations among Procellariiformes in multi-species feeding aggregations, observed through bird-borne cameras. 通过鸟载相机观察到的多物种摄食聚集中原虫形动物之间的激动相互作用和鸣叫。

IF 4.7

Philosophical transactions of the Royal Society of London. Series B, Biological sciences Pub Date : 2026-10-15 DOI: 10.1098/rstb.2025.0201

Andréa Thiebault, Isabelle Charrier, Maëlle Amiot, Peter G Ryan, Pierre Pistorius, Stefan Schoombie

{"title":"Agonistic interactions and vocalizations among Procellariiformes in multi-species feeding aggregations, observed through bird-borne cameras.","authors":"Andréa Thiebault, Isabelle Charrier, Maëlle Amiot, Peter G Ryan, Pierre Pistorius, Stefan Schoombie","doi":"10.1098/rstb.2025.0201","DOIUrl":"10.1098/rstb.2025.0201","url":null,"abstract":"Marine predators frequently aggregate at food sources, where interactions can range from cooperative group hunting to interference competition for resources. To investigate interactions at feeding aggregations among procellariiforms, we equipped wandering albatrosses Diomedea exulans with video cameras, collecting 43 hours of footage from 22 individuals. Cameras from eight birds recorded feeding aggregations, capturing a total of 62 minutes of footage (2.7% of observations). All events involved multiple species, including other wandering albatrosses, sooty albatrosses Phoebetria spp., giant petrels Macronectes spp., white-chinned petrels Procellaria aequinoctialis and smaller petrels (prions Pachyptila spp., blue petrels Halobaena caerulea, gadfly petrels Pterodroma spp. and storm petrels Oceanitidae). As in terrestrial bird assemblages, access to food was largely regulated by the size of competing individuals. The presence of other wandering albatrosses influenced interactions, with agonistic interactions in multi-species associations (intimidation postures, strikes and fights) observed only in events involving more than one wandering albatross (four of eight events). These interactions were accompanied by vocalizations. We identified five types of vocalizations from four individuals based on acoustic structure (n = 84 vocalizations). Intimidation postures were frequently accompanied by modulated vocalizations, indicating a combined visual-acoustic threat display. High-pitched screams, though rare, were also associated with agonistic interactions. These results contribute to a better understanding of foraging ecology and resource access in scavenging seabirds. This article is part of the theme issue 'Multi-predator feeding aggregations in pelagic waters'.","PeriodicalId":520748,"journal":{"name":"Philosophical transactions of the Royal Society of London. Series B, Biological sciences","volume":"381 1961","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13670075/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coevolutionary attack and avoidance strategies in predators and grouping prey. 捕食者和分组猎物的共同进化攻击和躲避策略。

IF 4.7

Philosophical transactions of the Royal Society of London. Series B, Biological sciences Pub Date : 2026-10-15 DOI: 10.1098/rstb.2025.0202

Daisy A B Cooper, James E Herbert-Read

{"title":"Coevolutionary attack and avoidance strategies in predators and grouping prey.","authors":"Daisy A B Cooper, James E Herbert-Read","doi":"10.1098/rstb.2025.0202","DOIUrl":"10.1098/rstb.2025.0202","url":null,"abstract":"The formation of groups by prey is one of the most widespread evolutionary responses to predation. However, while the anti-predation benefits provided to prey within groups have been extensively explored in the literature, the subsequent response of predators to grouping behaviour has lacked attention. In particular, what strategies predators use to attack grouping prey, and whether predation strategies have evolved to explicitly exploit the behaviour of prey groups, remains underexplored. In this review, we discuss the behavioural strategies predators have evolved to counteract the collective defences of prey groups, and in some cases capitalize on the prey's grouping behaviour. Specifically, we focus on the different strategies predators use to break apart and disrupt groups, while also exploring how predators capitalize on cohesion and coordinated movement to increase the likelihood of a successful attack. Overall, this review challenges the assumption that grouping is universally advantageous for prey, showing that predators have evolved a variety of successful strategies to overcome, and even exploit, grouping prey. This article is part of the theme issue 'Multi-predator feeding aggregations in the pelagic waters'.","PeriodicalId":520748,"journal":{"name":"Philosophical transactions of the Royal Society of London. Series B, Biological sciences","volume":"381 1961","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13670071/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-predatory feeding aggregations in the Norwegian Sea: prevalence and ecological importance. 挪威海的多掠食性捕食聚集：流行和生态重要性。

IF 4.7

Philosophical transactions of the Royal Society of London. Series B, Biological sciences Pub Date : 2026-10-15 DOI: 10.1098/rstb.2025.0209

Leif Nøttestad, Erling Boge, Bjørn A Krafft

{"title":"Multi-predatory feeding aggregations in the Norwegian Sea: prevalence and ecological importance.","authors":"Leif Nøttestad, Erling Boge, Bjørn A Krafft","doi":"10.1098/rstb.2025.0209","DOIUrl":"10.1098/rstb.2025.0209","url":null,"abstract":"Multi-predatory feeding aggregations (MPFAs) occur when several predator species concurrently exploit shared, spatially and temporally aggregated prey. Although MPFAs are well described in some marine ecosystems, their prevalence in the Norwegian Sea has historically been underestimated. Here, we synthesize existing biological, acoustic, visual and behavioural evidence to reinterpret classical predator-prey observations through the lens of MPFAs. Our reassessment revealed that numerous events previously described as single-predator interactions actually represent multi-species feeding assemblages involving marine mammals, large predatory fishes and seabirds. These MPFAs primarily target highly abundant pelagic schooling fishes, such as Norwegian spring-spawning herring, northeast Atlantic (NEA) mackerel, blue whiting and capelin. We compiled, to our knowledge, the first region-wide overview of documented and inferred MPFAs in the Norwegian Sea, characterizing species assemblages, ecological settings and behavioural mechanisms. We further discussed how predator physiology, group foraging strategies, prey schooling dynamics and oceanographic features interact to create conditions favourable for MPFAs. Recognizing MPFAs as common and ecologically influential phenomena has important implications for understanding food webs and ecosystem-based fisheries management. Therefore, we recommend that future research in the region explicitly incorporate MPFAs through multi-sensor observational approaches, behavioural analyses and integration into ecosystem models to better represent the functional role of predators in the NEA. This article is part of the theme issue 'Multi-predator feeding aggregations in pelagic waters'.","PeriodicalId":520748,"journal":{"name":"Philosophical transactions of the Royal Society of London. Series B, Biological sciences","volume":"381 1961","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13670076/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Marine radar reveals novel group foraging patterns in pelagic seabirds. 海洋雷达揭示了远洋海鸟的新群体觅食模式。

IF 4.7

Philosophical transactions of the Royal Society of London. Series B, Biological sciences Pub Date : 2026-10-15 DOI: 10.1098/rstb.2025.0203

Yann Tremblay

{"title":"Marine radar reveals novel group foraging patterns in pelagic seabirds.","authors":"Yann Tremblay","doi":"10.1098/rstb.2025.0203","DOIUrl":"10.1098/rstb.2025.0203","url":null,"abstract":"Many seabirds are known to frequently feed within multi-specific feeding flocks. These aggregations bring facilitation to prey access as well as potential exacerbated competition. Once a feeding opportunity is found, birds rapidly aggregate to it through processes known as local enhancement. At a larger scale, seabirds may distribute themselves forming patterns such as rakes or clusters, which are thought to increase the probability to cue on other foragers. The importance of such patterns in the foraging ecology of seabirds is yet to be evaluated empirically. Using a large dataset of radar images from the eastern tropical Atlantic, spanning between November 2015 and November 2018, I visually looked for the presence of collective patterns in seabirds' distribution at sea. I showed that clusters, rakes and the newly discovered chessboard patterns were found in 75.3, 68.6 and 51.0% of the recorded days, respectively. Furthermore, these patterns were observed virtually everywhere in the eastern tropical Atlantic and preceded the observations of local enhancement. These results indicate that collective patterns represent a widespread strategy, probably involving many different species associated with subsurface predators. The significance of this ubiquity is discussed in light of the strategic thinking possibly required to maintain these patterns, as well as their evolutionary and conservation implications. This article is part of the theme issue 'Multi-predator feeding aggregations in pelagic waters'.","PeriodicalId":520748,"journal":{"name":"Philosophical transactions of the Royal Society of London. Series B, Biological sciences","volume":"381 1961","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13670078/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Food, fear and physics drive collective behaviour in the ocean's pelagic zone. 食物、恐惧和物理因素驱动着远洋区的集体行为。

IF 4.7

Philosophical transactions of the Royal Society of London. Series B, Biological sciences Pub Date : 2026-10-15 DOI: 10.1098/rstb.2025.0208

Kelly J Benoit-Bird, William K Oestreich

{"title":"Food, fear and physics drive collective behaviour in the ocean's pelagic zone.","authors":"Kelly J Benoit-Bird, William K Oestreich","doi":"10.1098/rstb.2025.0208","DOIUrl":"10.1098/rstb.2025.0208","url":null,"abstract":"Understanding how complex, coordinated patterns arise in animal groups has been an important theme in behavioural ecology, revealing much about the mechanisms of the evolution of behaviour. While fish schools are a well-known example, they represent just one case among numerous and diverse collective behaviours exhibited by pelagic animals, including schooling and swarming, vertical migration and cooperative foraging. We argue that key features of the pelagic ocean, including the limitation and patchy distribution of food resources, the lack of cover and the motion of the medium itself, have repeatedly led to the evolution of collective behaviour in ocean animals. Examples from animals as small as plankton and as large as whales, the surface and the deep and invertebrate and vertebrate taxa illustrate how fear, physics and food lead to the evolution of group behaviours. Collective behaviour itself also drives the development of group behaviour in other animals in the habitat. These feedbacks result in group behaviours that simultaneously serve multiple purposes, nested collective behaviours and multi-species collectives. Observations of life in the largest living space on Earth are providing new insights into the evolutionary drivers and adaptive significance of collective behaviour and group living. This article is part of the theme issue 'Multi-predator feeding aggregations in pelagic waters'.","PeriodicalId":520748,"journal":{"name":"Philosophical transactions of the Royal Society of London. Series B, Biological sciences","volume":"381 1961","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13670074/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Increases in foraging performance of humpback whales in multi-predator feeding aggregations with California sea lions. 座头鲸在与加利福尼亚海狮的多捕食者觅食群体中觅食性能的提高。

IF 4.7

Philosophical transactions of the Royal Society of London. Series B, Biological sciences Pub Date : 2026-10-15 DOI: 10.1098/rstb.2025.0344

Anna Krylova, Ashley M Blawas, James A Fahlbusch, John Calambokidis, Hannah Clayton, Ari S Friedlaender, Alison K Stimpert, Jeremy A Goldbogen, David E Cade

{"title":"Increases in foraging performance of humpback whales in multi-predator feeding aggregations with California sea lions.","authors":"Anna Krylova, Ashley M Blawas, James A Fahlbusch, John Calambokidis, Hannah Clayton, Ari S Friedlaender, Alison K Stimpert, Jeremy A Goldbogen, David E Cade","doi":"10.1098/rstb.2025.0344","DOIUrl":"10.1098/rstb.2025.0344","url":null,"abstract":"Marine predators frequently form ephemeral multi-predator feeding aggregations around dense prey patches, yet the mechanisms and outcomes of these dynamic events remain poorly resolved. We quantified how California sea lion (Zalophus californianus) presence influenced humpback whale (Megaptera novaeangliae) foraging using 46 multi-sensor video tags (mean duration: 7.4 ± 7.1 h) deployed on fish-feeding whales in Monterey Bay, California, USA (2014-2023). Across 1808 lunge-feeding events, whales foraging with sea lions exhibited a 23% higher feeding rate and a 16% shorter inter-lunge interval, while the overall percentage of time spent foraging did not change. Across deployments, humpback whale lunge speeds, manoeuvring metrics, and energetic proxies (overall dynamic body acceleration) did not differ with sea lion presence, indicating no detectable increase in per-lunge locomotor cost. When body size was accounted for in a lunge-level linear mixed-effects analysis, sea lion presence was associated with a 35% reduction in approach duration, an 8% increase in approach mean speed and a 25% shorter total lunge duration. Collectively, these results support the interpretation that sea lion-associated bait ball foraging increases humpback whale feeding frequency primarily by compressing search and approach time rather than altering engulfment mechanics or increasing per-lunge energetic expenditure, indicating a potential contribution of sea lions to prey concentration. This article is part of the theme issue 'Multi-predator feeding aggregations in the pelagic waters'.","PeriodicalId":520748,"journal":{"name":"Philosophical transactions of the Royal Society of London. Series B, Biological sciences","volume":"381 1961","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13670080/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Escalating competition in changing seas: baleen whales exploit killer whale prey herding. 不断变化的海洋中不断升级的竞争：须鲸利用虎鲸的猎物群体。

IF 4.7

Philosophical transactions of the Royal Society of London. Series B, Biological sciences Pub Date : 2026-10-15 DOI: 10.1098/rstb.2025.0197

Eve Jourdain, Chérine Baumgartner, David Cade, Paolo Domenici

{"title":"Escalating competition in changing seas: baleen whales exploit killer whale prey herding.","authors":"Eve Jourdain, Chérine Baumgartner, David Cade, Paolo Domenici","doi":"10.1098/rstb.2025.0197","DOIUrl":"10.1098/rstb.2025.0197","url":null,"abstract":"Climate change and other anthropogenic pressures are rapidly reshaping marine ecosystems, altering prey availability and predator interactions. Yet empirical evidence of how these relationships shift under changing conditions remains scarce. Drawing on over a decade of monitoring in a subarctic fjord system, we provide a rare insight into these dynamics. In northern Norway, the winter aggregation of herring (Clupea harengus) and their primary predator, the killer whale (Orcinus orca), has shifted northward under the combined influence of climate change and fishing pressure. This redistribution has brought baleen whales into the same foraging grounds, leading to direct interference competition. Humpback (Megaptera novaeangliae) and fin whales (Balaenoptera physalus) frequently intrude into killer whale carousel feeding events, exploiting dense, shallow prey patches optimized for lunge feeding. Such intrusions often end hunts prematurely, imposing energetic costs on killer whales. Meanwhile, the rapid growth of whale-watching tourism in these fjords further disrupts foraging activity. Integrating unpublished data and existing literature, this article highlights the asymmetric energetic costs and benefits arising from these emerging interactions; processes likely widespread, yet still largely undetected in other marine ecosystems. This article is part of the theme issue 'Multi-predator feeding aggregations in the pelagic'.","PeriodicalId":520748,"journal":{"name":"Philosophical transactions of the Royal Society of London. Series B, Biological sciences","volume":"381 1961","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Changes in species composition of South Georgia seabirds and mammals 1985-2023: decrease in opportunities for local enhancement? 1985-2023年南乔治亚海鸟和哺乳动物物种组成的变化：局部增强的机会减少？

IF 4.7

Philosophical transactions of the Royal Society of London. Series B, Biological sciences Pub Date : 2026-10-15 DOI: 10.1098/rstb.2025.0363

Samantha A Monier, Lisa L Manne, Richard R Veit

{"title":"Changes in species composition of South Georgia seabirds and mammals 1985-2023: decrease in opportunities for local enhancement?","authors":"Samantha A Monier, Lisa L Manne, Richard R Veit","doi":"10.1098/rstb.2025.0363","DOIUrl":"10.1098/rstb.2025.0363","url":null,"abstract":"Seabirds cue into other birds and marine mammals to amplify their foraging success. Consequently, changes to the community (e.g. as the climate warms) can impact foraging success and potentially fitness. For example, flying birds that use groups of seals or penguins as cues might decline if the seal or penguin population declines, owing to fewer opportunities for positive foraging associations with one another. To test this idea, we leveraged data from transect surveys spanning 38 years (data collected in 1985, 1991, 1993 and 2023) in waters surrounding the subantarctic island South Georgia. We asked: 'Has the frequency with which seabirds form statistically significant pairings with other species declined over time?' We found such changes have occurred: network connectivity (the percentage of species pairings out of all possible pairs) decreased from approximately 40 to 7%, although the overall impact of warming on the community in 2023 was complicated by the arrival of a 100 km iceberg from the Weddell Sea. Possible fitness impacts from reduced associations could have broad-ranging consequences as the ocean continues to warm and the community changes. The results presented here represent one of just a handful of at-sea surveys documenting the winter seabird community at South Georgia. This article is part of the theme issue 'Multi-predator feeding aggregations in pelagic waters'.","PeriodicalId":520748,"journal":{"name":"Philosophical transactions of the Royal Society of London. Series B, Biological sciences","volume":"381 1961","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13670073/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0