Movement Ecology最新文献

{"title":"Buoyancy aptitude of the European wels catfish in relation to vertical migration and hunting behaviour.","authors":"Albert Ros, Jan Baer, Matthias Fromherz, Juergen Geist, Alexander Brinker","doi":"10.1186/s40462-026-00634-0","DOIUrl":"10.1186/s40462-026-00634-0","url":null,"abstract":"<p><p>BACKGROUND: The European wels catfish (Silurus glanis) is a large, physostomous apex predator of freshwater habitats. Its current range expansion both within and beyond its native distribution, is strongly influenced by global warming. This study investigates patterns of diving behaviour of a wels catfish population that has recently increased significantly in a large, deep, cold-water peri-alpine lake. METHODS: Pressure and temperature loggers were implanted into 42 free-ranging wild caught wels catfish in Lake Constance. High-resolution data from 13 recaptured individuals was subsequently analysed. RESULTS: Two distinct vertical migration modes previously undescribed for this species were identified: fast vertical movements, which lasted for less than 5 minutes, and slower vertical movements in which the vertical movement enacted over a period exceeding 15 min. Swimming depth was shown to be strongly affected by season and water temperature. Fish occupied deeper waters in winter, and shallower depths during the warmer summer months. During summer, vertical movements occurred predominantly around dusk and night with few vertical movements during daytime, indicating nocturnal foraging behaviour. During winter however, vertical movements were more equally divided over the day. Fish making relatively fast vertical movements returned to their original depth, whereas slow vertical movements appeared to be migration between depth layers. The amplitude per period of vertical movement of both fast and slow vertical migrations was mostly restricted to a pressure change of less than 30%. This limitation is likely to be related to the physostomous nature of the species, wherein buoyancy is controlled by a swimbladder with a limited capacity for volume change under pressure. CONCLUSIONS: These results provide new insights into the seasonal timing and diving aptitudes of a highly significant aquatic predator. Vertical movements were mostly made in darkness in summer, and during low light conditions during winter, in agreement with wels catfish having a nocturnal lifestyle in which they forage by detecting and following the wakes of their prey. The narrow amplitude of pressure changes during the vertical movements underscores the importance of tight control over buoyancy during navigation, which may be an important factor allowing it to colonize large deep lakes. </p>","PeriodicalId":54288,"journal":{"name":"Movement Ecology","volume":" ","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13063435/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147437301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contrasting foraging strategies of seasonally segregated populations of the band-rumped storm-petrel at St Helena, South Atlantic.","authors":"Annalea Beard, Frank Hailer, Steffen Oppel, Renata Medeiros, Leeann Henry, Alison Small, Richard A Phillips, Robert J Thomas","doi":"10.1186/s40462-026-00633-1","DOIUrl":"10.1186/s40462-026-00633-1","url":null,"abstract":"<p><p>BACKGROUND: Allochrony can be a cause or consequence of speciation, either creating temporal reproductive isolation that reduces gene flow between diverging populations or reinforcing divergence that has already occurred through geographic isolation. The former appears to apply to band-rumped storm-petrels (Hydrobates castro) at some breeding sites, where there are genetically differentiated hot and cool season breeding populations. It is unclear, however, whether seasonally segregated but genetically similar populations retain the same habitat preferences or whether divergence in foraging behaviour is associated with the process of allochronic speciation. METHODS: We quantified the foraging distribution of band-rumped storm-petrels at St Helena, the largest known breeding colony in the South Atlantic at which hot and cool season breeders do not appear to be genetically differentiated. Fifty-four GPS tags were deployed on experienced breeders across two hot and two cool breeding seasons. We compared foraging trip parameters, foraging effort and examined whether environmental (oceanographic and atmospheric) conditions and habitat selection varied between seasonal populations. RESULTS: Long foraging trips lasted up to 9 days and involved travel distances of up to 3,285 km. The trip durations and distances were similar between the two seasonal populations, but directions differed markedly, resulting in pronounced differences in at-sea distributions. Adults breeding in the cool season foraged across ~ 619,000 km2 southeast of St Helena selecting warmer waters (~ 23.1 ± 0.7 °C). In the hot season, adults used a similarly sized area (~ 600,000 km2) to the southwest, but selected cooler waters (~ 21.2 ± 0.4 °C) even though overall conditions at unused but available locations were warmer (~ 23.7 ± 0.7 °C) than in the cool season (~ 20.6 ± 0.5 °C). CONCLUSIONS: Seasonal differences in oceanographic conditions likely force hot season breeders to select cool nutrient-rich waters, whereas cool season breeders may select wind or temperature conditions that minimise travel or thermoregulatory costs. This clear segregation in foraging range and habitat selection suggests that the divergence in at-sea distributions between two genetically similar seasonal breeding populations may contribute to allochrony and ultimately to sympatric speciation in the band-rumped storm-petrel at St Helena and elsewhere. </p>","PeriodicalId":54288,"journal":{"name":"Movement Ecology","volume":" ","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13003698/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147391504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecological contexts of diving behavior in Hawaiian false killer whales.","authors":"Michaela A Kratofil, Jacquelyn F Shaff, Holly K Hoffbauer, Mauricio Cantor, Marie C Hill, Robin W Baird","doi":"10.1186/s40462-026-00630-4","DOIUrl":"10.1186/s40462-026-00630-4","url":null,"abstract":"&lt;p&gt;&lt;p&gt;BACKGROUND: Predator movements vary across different ecological contexts, offering valuable insights into their foraging strategies. However, studying these contexts in marine predators is challenging due to the difficulty of observing them and their prey over sufficient spatiotemporal scales. Using bio-loggers and detailed life history information, we investigated abiotic and biotic factors shaping the diving behavior of a highly social apex predator—the false killer whale (Pseudorca crassidens)—around the Hawaiian Archipelago where three partially sympatric, genetically differentiated populations coexist. METHODS: We deployed time-depth recorders (n = 5) and depth-transmitting satellite tags (n = 16) on false killer whales between 1999 and 2025 to describe diving at multiple spatiotemporal scales and ecological contexts. We fit generalized additive mixed-effects models to examine relationships between dive metrics and temporal and spatial proxies of prey distribution. Dive metrics were compared across demographic traits (sex, population, relative size) to assess potential drivers of behavioral variability. RESULTS: False killer whales spent most of their time in near-surface waters and frequently dove within the epipelagic zone. Individuals exhibited various dive types within and among different habitats, including near-seafloor and deep ( &gt; 1000 m; record maximum of 1424 m) diving behavior. Dive rates and depths were highest during daylight hours and full moons, although with significant inter-individual variation. Dive depth increased with current magnitude and mixed layer depth and decreased with lagged surface chlorophyll-a concentration. Larger individuals tended to dive deeper, although with high variation across demographic groups. These findings offer key insights into potential drivers of diving behavior, albeit with small effect sizes. CONCLUSIONS: We present the first comprehensive description of diving behavior for this species, which was characterized by variable temporal patterns, in contrast to sympatric species that are known to exploit diel vertically migrating prey. The diversity of dive types across habitats, along with trends between dive metrics and oceanographic variables, suggests that false killer whales may adjust their vertical movements to target different prey and environmental conditions. KE KAHUA : ʻOkoʻa ka holo ʻana o ke poʻiiʻa ma nā ʻano honua kaiaola like ʻole, a hiki nō ke ʻike ʻia kā lākou kaʻakālai ʻai. Paʻakikī naʻe ke kilo ʻana i kēia mau honua o nā poʻiiʻa kai ʻoiai, paʻakikī ka nānā ʻana iā lākou me kā lākou ʻai ma nā pālākiō henua kaime. Ma o ka hoʻohana ʻana aku i nā lēpili ola a me nā ʻikepili ola kikoʻī, noiʻi mākou i hiki i nā mea ʻōnaeao a me nā mea ola kino ke pā i ke ʻano o ka luʻu ʻana o ke poʻiiʻa keu ma ka lauana ʻana - ke koholā ʻāhuka iwi poʻo like (Pseudorca crassidens) - a puni ka paeʻāina Hawaiʻi i noho pū ʻekolu pūʻuo ʻano pili a ʻokoʻa ma ke ōewe hoʻi. KIʻINA HANA : Ua hoʻopaʻa m","PeriodicalId":54288,"journal":{"name":"Movement Ecology","volume":" ","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13003685/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147370765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"When experience breeds variability: age-dependent movement diversity in a successful shorebird.","authors":"Yang Wu, Weipan Lei, Jing Zhang, Chun Zhao, Jili He, Ziqiang Zhu, Yu Liu, Jin Liu, De Chen, Zhijun Ma, Tatsuya Amano, Min Zhang, Zhengwang Zhang, Richard A Fuller","doi":"10.1186/s40462-026-00638-w","DOIUrl":"10.1186/s40462-026-00638-w","url":null,"abstract":"<p><p>Migratory species are vulnerable to habitat loss, especially migratory birds that rely on multiple stopover sites during migration. According to conventional understanding, migratory birds typically show reduced behavioral variability as they age, with their migration routes becoming increasingly fixed through experience, which may make them even more vulnerable to habitat loss along their flyway. Indeed, in the East Asian-Australasian Flyway (EAAF), most waterbird populations have rapidly declined due to habitat loss and land use changes. However, some migratory species like the Pied Avocet Recurvirostra avosetta have maintained or even increased their populations. We investigated whether this success might be linked to age-related patterns in migration behavior. Using satellite tracking technology, we monitored the movement behaviors of 48 adult and 20 juvenile Pied Avocets in eastern China from 2021 to 2024. Contrary to expectations, adults exhibited greater movement variability than juveniles. In the first two years of life, Pied Avocets performed relatively limited movements, adopting conservative migration strategies, which may reduce mortality risks. In contrast, experienced adults showed greater variability in their movement patterns. Some migrated to more southerly wintering grounds or more northerly breeding sites, and occasionally pioneered entirely new flight paths. Compared to juveniles, adult birds also showed larger home ranges during the pre-migration period and greater within-season movements during the non-migration period. This age-related increase in ranging behavior and movement variability may contribute to their population resilience in rapidly changing environments. Our findings suggest that the combination of risk-averse strategies in young birds and diverse movement strategies within adult populations, ranging from conservative to exploratory individuals, might represent an important adaptation mechanism for long-lived species facing environmental change.</p>","PeriodicalId":54288,"journal":{"name":"Movement Ecology","volume":" ","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13072586/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147367304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A rare tropical storm event drives partial nursery evacuation by juvenile white sharks, followed by rapid aggregation reformation.","authors":"Jack T Elstner, Emily Spurgeon, Patrick Rex, Elizabeth Jahn, Zachariah Merson, Whitney Jones, Lauren Faulkner, James Anderson, Ryan Logan, Wave Moretto, Theodora Mautz, Rilee Sanders, Max Titcomb, Gabriel Gekas, Christopher G Lowe, Brice X Semmens","doi":"10.1186/s40462-026-00642-0","DOIUrl":"10.1186/s40462-026-00642-0","url":null,"abstract":"<p><p>Extreme weather events, such as tropical storms, can pose profound disruption to nearshore marine environments. Although coastal ecosystems are particularly vulnerable to storm impacts, research describing the response of marine taxa to extreme weather remains limited, especially for highly mobile marine predators. In this study, we use acoustic telemetry to investigate the behavioral responses of juvenile white sharks (Carcharodon carcharias) at a Southern California nursery aggregation site to Tropical Storm Hilary in 2023. To aid in these efforts, we developed a novel occupancy modeling approach to statistically account and correct for temporal variations in acoustic receiver performance during disruptive storm conditions. Using detection data from synchronization transmitters, we first estimated the effects of key environmental factors on transmitter detection efficiency, with ambient noise, receiver tilt, and the density of animal transmitters present inside the receiver array emerging as particularly influential predictors. We then leveraged these estimated effects to inform a Bayesian state space model designed to investigate nursery occupancy dynamics, including environmental drivers of nursery emigration. Our results provide evidence of partial nursery evacuation, with over half of tagged sharks temporarily leaving monitored nearshore habitats in response to peak storm conditions. However, most emigrations were short-lived, with all but one shark returning to the aggregation site within three weeks of the storm. Evacuations from nursery habitats were best predicted by falling sea surface temperatures, although increased wave height, declining barometric pressure, and drops in salinity may have served as important secondary flight cues. Our efforts provide a rare opportunity to document the storm response behaviors of a recovering top predator, while also presenting tangible analytical solutions to commonly encountered technical challenges in the field of acoustic telemetry.</p>","PeriodicalId":54288,"journal":{"name":"Movement Ecology","volume":" ","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13094277/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147357623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Challenges and approaches in tracking and analyzing movement of ground-dwelling insects.","authors":"Jana Růžičková, Zoltán Elek","doi":"10.1186/s40462-026-00637-x","DOIUrl":"10.1186/s40462-026-00637-x","url":null,"abstract":"<p><p>The movement ecology of ground-dwelling insects is essential for understanding their behavior and population dynamics. These insects, especially flightless beetles and orthopterans, exhibit cryptic lifestyles and fine-scale movements that pose unique challenges to tracking and recording their movement paths under natural field conditions. In this review, we evaluate existing tracking methods and propose an analytical framework for studying ground-dwelling insect movement, emphasizing their applications, limitations, and future directions. Traditional methods such as capture-mark-recapture and direct observation have been increasingly complemented by technologies like radio telemetry and harmonic radar, which can provide high-resolution movement trajectories. Despite these advances, many movement studies remain descriptive, focusing on basic metrics such as distances and turning angles without addressing underlying behavioral or ecological processes. Innovative analytical tools such as hidden Markov models and step-selection functions, well-established in vertebrate movement ecology, are rarely adapted to insect movement studies. This limits our ability to explore potential links between the movement of ground-dwelling insects and behavioral patterns, habitat features, or environmental changes. By framing movement analyses along a descriptive–mechanistic–predictive continuum, we highlight the need for more integrative, process-based approaches to improve our understanding of how these insects respond to habitat fragmentation and climate change. Since no single method fits all scenarios, we hope this review guides entomologists in selecting appropriate methods and analytical tools for studying ground-dwelling insects across diverse ecological contexts.</p>","PeriodicalId":54288,"journal":{"name":"Movement Ecology","volume":" ","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13067757/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147349220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Drivers of seasonal space use and movements of mule deer in agriculturally modified landscapes of the Great Plains.","authors":"Kate A Asmus, Kyle D Dougherty, Luke Meduna, Todd D Nordeen, Michael J Cherry, Thomas R Stephenson, John F Benson","doi":"10.1186/s40462-026-00639-9","DOIUrl":"10.1186/s40462-026-00639-9","url":null,"abstract":"<p><p>BACKGROUND: Understanding how key resources and anthropogenic disturbance influence animal space use and movement is essential for informing management of declining populations. Mule deer are studied extensively in mountainous and desert regions of North American. Yet, little is known about mule deer spatial ecology along the eastern periphery of their geographic range in prairie and agricultural landscapes in the Great Plains of Nebraska, where some populations appear to be declining. METHODS: We tracked 240 adult female mule deer with GPS telemetry to estimate seasonal home range size and movements in four study units in western Nebraska with highly variable natural and anthropogenic landscape characteristics. RESULTS: Females used smaller home ranges in areas with greater forage and woody cover and more evenly distributed habitat types. Females used larger home ranges with increasing croplands and human development in most study units but used smaller home ranges relative to these features within the unit with the lowest human presence. Migration between distinct summer and winter home ranges was rare (n = 18 females) and mostly involved relatively short distances (3–14 km). Interestingly, one female migrated approximately 100 km to establish a winter range in Wyoming before migrating back to her summer range in Nebraska. Migration occurred most frequently by females in the unit with the lowest proportion of croplands, whereas no females migrated in the unit with the most croplands, suggesting that abundant croplands may promote residency. CONCLUSIONS: Remaining natural habitat providing forage and cover is important to mule deer at the eastern periphery of their range in agriculturally modified landscapes. Agriculture provides costs and benefits to mule deer as it fragments the landscape resulting in larger home ranges, while also serving as a supplementary food source that likely contributed to the superior nutritional condition of mule deer in southwest Nebraska. Our work establishes the basic spatial ecology of mule deer in Nebraska and highlights the context specific nature of responses by ungulates to human landscape modification. </p>","PeriodicalId":54288,"journal":{"name":"Movement Ecology","volume":" ","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13020411/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147322352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Out of the forest: the movements and habitat selection of mixed-species bird flocks in agricultural landscapes adjacent to protected areas in Sri Lanka.","authors":"Iresha Wijerathne, Dulan Ranga Vidanapathirana, Sarath W Kotagama, Aiwu Jiang, Eben Goodale","doi":"10.1186/s40462-026-00627-z","DOIUrl":"10.1186/s40462-026-00627-z","url":null,"abstract":"<p><strong>Background: </strong>The conservation of tropical biodiversity will require not only protected areas, but also strategies to retain animals in degraded secondary forests and countryside agricultural landscapes. This study aims to identify key landscape elements and land-use types that support the movement of mixed-species bird flocks in areas outside, but adjacent to, rainforests in lowland Sri Lanka.</p><p><strong>Methods: </strong>We recorded flock movement pathways at five sites using handheld GPS, and documented flock composition, land-use, and habitat variables at waypoints every 15 min. Land cover was assessed through high-resolution satellite images, and classified into land-use categories based on dominant vegetation. To analyze habitat selection, we employed a resource selection function using generalized linear mixed models.</p><p><strong>Results: </strong>A total of 112 flocks were observed, yielding 754 location records (average 7 ± 3 [SD] points per flock) across ten 3-km transects over two years. Overall, a diverse array of species (n = 66) was recorded in flocks. An interaction between land-use and time of day affected flock habitat selection, with preference for water-associated habitat such as marsh and riparian corridors, and mixed cultivation, particularly high after morning, while tea plantations were generally avoided throughout the day. Flock speed was inversely related with land-use preference, and increased when the leading species Orange-Billed Babbler (Argya rufescens) was present. Flock size and species richness strongly declined with increasing distance to the forest, with the exception that marsh, riparian corridors and mixed cultivation retained large flocks.</p><p><strong>Conclusions: </strong>The findings emphasize how mixed-species flocks can move through human modified landscapes and how their organization (e.g., leading species) influences that process. To sustain avian diversity in agroecosystems, conservation strategies must be spatiotemporally explicit. The study highlights the importance of planning heterogeneous landscapes, including water-associated habitat and mixed cultivations, in order for flocks to persist in this agricultural landscape.</p>","PeriodicalId":54288,"journal":{"name":"Movement Ecology","volume":" ","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12964934/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147312415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Movement patterns and connectivity of gilthead seabream (Sparus aurata) in the NW Mediterranean Sea.","authors":"Davide Thambithurai, Tarek Hattab, David M P Jacoby, Philippe Lenfant, Bernat Hereu, Fabien Forget, Olivier Breton, Patrick Bonhomme, Eric Charbonnel, Remi Villeneuve, Alexandre Mignucci, Olivier Derridj, Sylvain Blouet, Jérôme Bourjea","doi":"10.1186/s40462-025-00619-5","DOIUrl":"10.1186/s40462-025-00619-5","url":null,"abstract":"<p><p>BACKGROUND: Animal movement underpins critical ecological processes and shapes ecosystem resilience. In marine systems, understanding the spatial ecology and connectivity of exploited species is essential for informing conservation and sustainable fisheries management. Despite their ecological and economic importance, the spatio-temporal movement of gilthead seabream (Sparus aurata) in the Mediterranean Sea remains poorly understood. METHODS: We leveraged the largest acoustic telemetry dataset ever collected in the Mediterranean as part of the project CONNECT-MED and RESMED, tracking 222 tagged seabream over three years (2019–2022). Using an array of more than 180 strategically positioned acoustic receivers across the Gulf of Lion in both lagoons and the sea, we analysed over 700,000 detections spanning a longitudinal gradient of 200 km. Using individual-based spatial network analysis, we quantified movement dynamics, space use, and connectivity. RESULTS: Seabream showed strong seasonal migrations, with wide (> 180 km for some individuals) spatial dispersal during spawning (October–March) and localized movements whilst foraging (April–September). Eastward and southward migration linked lagoon nurseries/foraging areas to offshore spawning areas. The Marseille area (Calanques National Park and Côte Bleue Marine Park) was identified as a major spawning region used by fish across the Gulf of Lion. Movement varied with fish size, with larger fish having more complex and dynamic networks. Autumn saw synchronous lagoon emigration and aggregation at spawning sites, with multi-year site fidelity. CONCLUSIONS: Our findings demonstrate size-dependent movement strategies in gilthead seabream and reveal structured connectivity linking lagoon foraging areas to offshore spawning grounds. The concentration of spawning activity near Marseille identifies a key regional hotspot of ecological and management importance. Incorporating these connectivity patterns, ontogenetic shifts, and spatial behaviours into fisheries management will be essential for sustaining seabream populations across the northwestern Mediterranean. </p>","PeriodicalId":54288,"journal":{"name":"Movement Ecology","volume":"14 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12927243/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147273034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impacts of anthropogenic linear features on the space-use patterns of two sympatric ungulates.","authors":"Ronan B Hart, Simona Picardi, Tal Avgar","doi":"10.1186/s40462-026-00628-y","DOIUrl":"10.1186/s40462-026-00628-y","url":null,"abstract":"<p><p>As human activity increases worldwide, many ecologists have focused on how anthropogenic linear features (ALFs) such as roads and fences impact and disrupt animal space-use behavior and how this disruption could potentially affect population viability. The properties of an animal's occurrence distribution (OD), namely its size, shape, and habitat associations, reflect the animal's balance of costs and benefits and thus can act as indirect indicators of behavioral optimality. Measuring deviations from theoretical space-use optimality can provide insight into the non-lethal effects of ALFs on wildlife in different environmental contexts. Here, we focused on the seasonal space-use patterns of two wide-ranging, highly mobile species of great cultural and economic value: mule deer (Odocoileus hemionus; n = 3105) and pronghorn (Antilocapra americana; n = 320). We calculated the average use of six environmental and three ALF attributes, weighted by their intensity of use within the OD, and contrasted those with their respective average availability within a 100-km² reference area centered on each animal's OD. We show that mule deer space-use is more impacted by roads, while pronghorn space-use is affected more by fences, specifically in the winter when snow depth may hinder their ability to cross fences. Our results highlight the dynamic nature of the availability domain and the importance of properly accounting for this dynamism in habitat selection analyses. This research expands on the theoretical literature of animal space use and their response to ALFs in a rapidly changing world and further provides practical strategies for wildlife managers to take when mitigating ALF impacts on their target species.</p>","PeriodicalId":54288,"journal":{"name":"Movement Ecology","volume":" ","pages":""},"PeriodicalIF":4.0,"publicationDate":"2026-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13019967/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146221870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}