Search

Your search keyword '"GEOLOCATOR DATA"' showing total 4 results
Start Over Descriptor "GEOLOCATOR DATA"
4 results on '"GEOLOCATOR DATA"'

1. Leapfrog migration and habitat preferences of a small oceanic seabird, Bulwer's petrel ( Bulweria bulwerii).

Author

Ramos, Raül, Sanz, Víctor, Militão, Teresa, Bried, Joël, Neves, Verónica C., Biscoito, Manuel, Phillips, Richard A., Zino, Francis, and González‐Solís, Jacob

Subjects
*SEA birds, *BIRD habitats, *BIRD migration, *BIRD classification, *PHYSIOLOGY
Abstract

Aim Our current understanding of migratory strategies and the reasons for their high variability along the phylogenetic tree remains relatively poor. Most of the hypotheses relating to migration have been formulated for terrestrial taxa; classically, oceanic migrations were considered as merely dispersive because of the scarcity of observations in the open ocean. We describe for the first time, the migration strategy of a small seabird, the Bulwer's petrel ( Bulweria bulwerii), and provide new insights into the ecology and evolution of long-distance marine migrations. Location Subtropical and tropical Atlantic Ocean. Methods Using cutting-edge geolocators, we examined the year-round distribution and at-sea activity patterns of adult Bulwer's petrels sampled at five localities throughout the species' breeding range in the Atlantic, within the Azores, Salvages, Canary and Cape Verde archipelagos. We assessed the migratory connectivity of the species and its habitat use at population and metapopulation scales. Results Our results provide the first evidence of an oriented leapfrog migration in oceanic seabirds. Ecological niche models based on breeding-season data effectively predicted that subtropical waters of the South Atlantic would be the preferred habitat for the northern populations of Bulwer's petrels during the non-breeding season. Habitat modelling also highlighted similarities in distributions between the breeding and non-breeding periods for the southern populations. Data on at-sea activity patterns suggested that birds from the northern and southern populations behave differently during the breeding season, as well as in the northern and southern non-breeding ranges during the non-breeding period. Main conclusions These results indicate that specific habitat preferences, presumably related to differences in prey availability, explain the observed distributions and hence the pattern of leapfrog migration described for Bulwer's petrel. Our study demonstrates the utility of integrating diverse tracking data from multiple populations across international boundaries, and habitat modelling, for identifying important areas common to many marine species in the vast oceanic environments. [ABSTRACT FROM AUTHOR]

Published
2015
Full Text
View/download PDF

2. Migration of red-backed shrikes from the Iberian Peninsula

Author

Kasper Thorup, Alejandro Onrubia, Anders P. Tøttrup, Lykke Pedersen, Raymond H. G. Klaassen, and Both group

Subjects
0106 biological sciences, AFRICA, geography, geography.geographical_feature_category, Bird migration, Northern Hemisphere, AUTUMN, Biology, WIND, biology.organism_classification, 010603 evolutionary biology, 01 natural sciences, 010605 ornithology, BIRD MIGRATION, Fishery, Colonisation, Peninsula, Lanius collurio, GEOLOCATOR DATA, Spring (hydrology), Animal Science and Zoology, Glacial period, DISTANCE MIGRATION, Ecology, Evolution, Behavior and Systematics
Abstract

The current Northern Hemisphere migration systems are believed to have arisen since the last glaciation. In many cases, birds do not migrate strait from breeding to non-breeding areas but fly via a detour. All western European populations of red-backed shrikes Lanius collurio are assumed to reach their southern African wintering grounds detouring via southeast Europe. Based on theoretical considerations under an optimality framework this detour is apparently optimal. Here, we use individual geolocator data on red-backed shrikes breeding in Spain to show that these birds do indeed detour via southeast Europe en route to southern Africa where they join other European populations of red-backed shrikes and return via a similar route in spring. Disregarding potential wind assistance, the routes taken for the tracked birds in autumn were not optimal compared to crossing the barrier directly. For spring migration the situation was quite different with the detour apparently being optimal. However, when considering potential wind assistance estimated total air distances during autumn migration were overall similar and the barrier crossing shorter along the observed routes. We conclude that considering the potential benefit of wind assistance makes the route via southeast Europe likely to be less risky in autumn. However, it cannot be ruled out that other factors, such as following a historical colonisation route could still be important.

Published
2017

3. Unexpected diversity in socially synchronized rhythms of shorebirds

Author

Laura McKinnon, David B. Lank, Joël Bêty, Caleb S. Spiegel, Joanna Burger, Pavel S. Tomkovich, James A. Johnson, Paul A. Smith, Tomás Montalvo, Klaus Michael Exo, Clemens Küpper, Egor Y. Loktionov, Jos C.E.W. Hooijmeijer, Bruno J. Ens, Laura Koloski, Marcel Klaassen, Jean-François Lamarre, Orsolya Vincze, Vanessa Loverti, Marie-Andrée Giroux, Mihai Valcu, Stephen Brown, Hanna Prüter, Jennie Rausch, Stephen Yezerinac, Richard B. Lanctot, Chris J. Hassell, David C. Payer, Lawrence J. Niles, Bruce Casler, Jordi Figuerola, Ron Porter, Martin Sládeček, Megan L. Boldenow, Jonathan T. Coleman, Clive Minton, Brett K. Sandercock, Kari Koivula, Bart Kempenaers, Oscar W. Johnson, Adriaan M. Dokter, András Kosztolányi, Paul F. Woodard, Sarah T. Saalfeld, Jeroen Reneerkens, Joseph A. M. Smith, Olivier Gilg, Erica Nol, Martin Bulla, Libor Praus, Barbara Helm, Alexei A. Dondua, Eunbi Kwon, Theunis Piersma, Rebecca Bentzen, Nicolas Lecomte, Nelli Rönkä, Anne L. Rutten, Phil F. Battley, James J. H. St Clair, Wim Tijsen, Tamás Székely, Michael I. Goldstein, Miroslav Šálek, José A. Alves, Nathan R. Senner, H. River Gates, F M Smith, Jesse R. Conklin, Joe Liebezeit, Hana Vitnerová, Karel Weidinger, Scott Freeman, Ken Gosbell, Veli-Matti Pakanen, Daniel Burgas, Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, Computational Geo-Ecology, University of Amsterdam [Amsterdam] (UvA)-Institute for Biodiversity and Ecosystem Dynamics (IBED), Department of Ecology, University of Veterinary Medicine Budapest, MTA-DE ‘Lendület’ Behavioural Ecology Research Group, University of Debrecen, Apiloa GmbH, Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Division of Biology, Kansas State University, Coastal Ecology Team, Sovon Dutch Centre for Field Ornithology, Division of Migratory Birds - Northeast Region, US Fish and Wildlife Service, Global Flyway Network, Institute of Zoology, Graz University of Technology [Graz] (TU Graz), Australasian Wader Studies Group, Department of Forest Sciences [Helsinki], Faculty of Agriculture and Forestry [Helsinki], University of Helsinki-University of Helsinki, Department of Biological and Environmental Science [Jyväskylä Univ] (JYU), University of Jyväskylä (JYU), Department of Biological Sciences [Burnaby], Simon Fraser University (SFU.ca), National Park Service, State Lab for Photon Energetics, Bauman Moscow State Technical University, Biology Department, Trent University, Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University [Blacksburg], Center for Conservation Biology, College of William and Mary [Williamsburg] (WM), Pacifica Ecological Services, Migratory Bird Management, Shorebird Recovery Program, Manomet Center for Conservation Sciences, Faculty of Science, Charles University [Prague] (CU), Department of Wildlife Diseases, Leibniz Institute for Zoo and Wildlife Research, Department of Biology and Biochemistry, University of Bath [Bath], Centre for Evolutionary Biology, The University of Western Australia (UWA), Departement de Biologie, Chimie et Géographie, Université du Québec à Rimouski (UQAR), Canadian Wildlife Service, Environment and Climate Change Canada, Chair in Global Flyway Ecology - Conservation Ecology Group, University of Groningen [Groningen]-Groningen Institute for Evolutionary Life Sciences (GELIFES), Division of Life Sciences, Rutgers, The State University of New Jersey [New Brunswick] (RU), Rutgers University System (Rutgers)-Rutgers University System (Rutgers), Audubon Society of Portland, Queensland Wader Study Group, Estación Biológica de Doñana (EBD), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), South Iceland Research Centre, University of Iceland [Reykjavik], CESAM, Universidade de Aveiro, LJ Niles Associates, Department of Zoology and Laboratory of Ornithology, Faculty of Science, Palacky University Olomouc, University of Oulu, Institute of Avian Research, Vogelwarte Helgoland, Environmental and Life Sciences, Bilingual Biology Program, York University [Toronto], Centre for Integrative Ecology, Deakin University [Burwood], Canada Research in Northern Biodiversity, Centre d'Etudes Nordiques (CEN), Université Laval [Québec] (ULaval), Canada Research in Polar and Boreal Ecology, Université de Moncton, Faculty of Environmental Sciences, Czech University of Life Sciences Prague (CZU), Department of Biology and Wildlife, University of Alaska [Fairbanks] (UAF), Alaska Coastal Rainforest Center, University of Alaska [Southeast] (UAS), Cornell University [New York], Biogéosciences [UMR 6282] [Dijon] (BGS), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Evolutionary Ecology Group, Babes-Bolyai University [Cluj-Napoca] (UBB), Montana State University (MSU), Wildlife Research Division, Zoological Museum, Lomonosov Moscow State University (MSU), Ecology Group, Institute of Agriculture and Environment, Arctic Beringia Program, Wildlife Conservation Society, Delaware Bay Shorebird Project, Arctic National Wildlife Refuge, Fieldday Consulting, Milner Centre for Evolution, Servei de Vigilància i Control de Plagues Urbanes, Agència de salut pública de barcelona, Royal Netherlands Institute for Sea Research (NIOZ), Migratory Bird and Habitat Program, Study supported by the Max Planck Society., Max Planck Society, University of Amsterdam [Amsterdam] ( UvA ) -Institute for Biodiversity and Ecosystem Dynamics ( IBED ), Graz University of Technology [Graz] ( TU Graz ), University of Helsinki [Helsinki], Department of Biological and Environmental Sciences, University of Jyväskylä, Department of Biological Sciences, Simon Fraser University ( SFU.ca ), US National Park Service - Alaska Region, College of William & Mary and Virginia Commonwealth University, Charles University in Prague, The University of Western Australia ( UWA ), Université du Québec A Rimouski ( UQAR ), University of Groningen [Groningen]-Groningen Institute for Evolutionary Life Sciences ( GELIFES ), Rutgers, The State University of New Jersey [New Brunswick] ( RUTGERS ), Department of Wetland Ecology, Consejo Superior de Investigaciones Científicas [Spain] ( CSIC ), Palacky University, Centre d'Etudes Nordiques ( CEN ), Université Laval, Czech University of Life Sciences Prague, University of Alaska Fairbanks ( UAF ), University of Alaska Southeast, Cornell Laboratory of Ornithology, Biogéosciences [Dijon] ( BGS ), AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Babeș-Bolyai University ( UBB ), Montana State University ( MSU ), Lomonosov Moscow State University ( MSU ), Massey University-Institute of Agriculture and Environment, Royal Netherlands Institute for Sea Research ( NIOZ ), Theoretical and Computational Ecology (IBED, FNWI), Piersma group, Palsbøll lab, and Conservation Ecology Group

Subjects
0301 basic medicine, Male, 0106 biological sciences, Periodicity, Time Factors, Zygote, Behavioural ecology, Captivity, Biológiai tudományok, Evolutionary ecology, 01 natural sciences, SEXUAL SELECTION, Nesting Behavior, Predation, Charadriiformes, Természettudományok, Nest, PHYLOGENIES, Incubation, Social evolution, 0303 health sciences, Multidisciplinary, ROLES, Ecology, Reproduction, Animal behaviour, Biological Evolution, Circadian Rhythm, INCUBATION PATTERNS, Sexual selection, GEOLOCATOR DATA, Crypsis, Female, CIRCADIAN-RHYTHMS, Cues, Photoperiod, Foraging, NEST PREDATION, Zoology, shorebirds, Context (language use), [SDV.BID]Life Sciences [q-bio]/Biodiversity, Environment, Biology, 010603 evolutionary biology, CLOCKS, 03 medical and health sciences, Rhythm, Species Specificity, Animals, 14. Life underwater, Sensory cue, 030304 developmental biology, [ SDV.BID ] Life Sciences [q-bio]/Biodiversity, [ SDE.BE ] Environmental Sciences/Biodiversity and Ecology, BIRDS, Feeding Behavior, EVOLUTION, 030104 developmental biology, Starvation, Predatory Behavior, socially synchronized rhythms, ta1181, [SDE.BE]Environmental Sciences/Biodiversity and Ecology
Abstract

The behavioural rhythms of organisms are thought to be under strong selection, influenced by the rhythmicity of the environment1,2,3,4. Such behavioural rhythms are well studied in isolated individuals under laboratory conditions1,5, but free-living individuals have to temporally synchronize their activities with those of others, including potential mates, competitors, prey and predators6,7,8,9,10. Individuals can temporally segregate their daily activities (for example, prey avoiding predators, subordinates avoiding dominants) or synchronize their activities (for example, group foraging, communal defence, pairs reproducing or caring for offspring)6,7,8,9,11. The behavioural rhythms that emerge from such social synchronization and the underlying evolutionary and ecological drivers that shape them remain poorly understood5,6,7,9. Here we investigate these rhythms in the context of biparental care, a particularly sensitive phase of social synchronization12 where pair members potentially compromise their individual rhythms. Using data from 729 nests of 91 populations of 32 biparentally incubating shorebird species, where parents synchronize to achieve continuous coverage of developing eggs, we report remarkable within- and between-species diversity in incubation rhythms. Between species, the median length of one parent’s incubation bout varied from 1–19 h, whereas period length—the time in which a parent’s probability to incubate cycles once between its highest and lowest value—varied from 6–43 h. The length of incubation bouts was unrelated to variables reflecting energetic demands, but species relying on crypsis (the ability to avoid detection by other animals) had longer incubation bouts than those that are readily visible or who actively protect their nest against predators. Rhythms entrainable to the 24-h light–dark cycle were less prevalent at high latitudes and absent in 18 species. Our results indicate that even under similar environmental conditions and despite 24-h environmental cues, social synchronization can generate far more diverse behavioural rhythms than expected from studies of individuals in captivity5,6,7,9. The risk of predation, not the risk of starvation, may be a key factor underlying the diversity in these rhythms., The study was supported by the Max Planck Society (to B.K.). M.B. is a PhD student in the International Max Planck Research School for Organismal Biology.

Published
2016

4. Leapfrog migration and habitat preferences of a small oceanic seabird, Bulwer's petrel (Bulweria bulwerii)

Author

Manuel Biscoito, Richard A. Phillips, Víctor Sanz, Verónica C. Neves, Jacob González-Solís, Raül Ramos, Francis Zino, Joël Bried, Teresa Militão, and Universitat de Barcelona

Subjects
Bulweria bulwerii, Population, Petrel, Activity Patterns, Metapopulation, Biology, Migració d'ocells, Geolocator Data, Cape verde, biology.animal, Ocells marins, Macaronesian Seabirds, education, Metapopulation Studies, Ecology, Evolution, Behavior and Systematics, Ecological niche, education.field_of_study, Ecology, Oceanic Migrations, fungi, Birds migration, Sea birds, Capture-mark-recapture, biology.organism_classification, Habitat Modelling, Habitat, Seabird
Abstract

AIM: Our current understanding of migratory strategies and the reasons for their high variability along the phylogenetic tree remains relatively poor. Most of the hypotheses relating to migration have been formulated for terrestrial taxa; classically, oceanic migrations were considered as merely dispersive because of the scarcity of observations in the open ocean. We describe for the first time, the migration strategy of a small seabird, the Bulwer's petrel (Bulweria bulwerii), and provide new insights into the ecology and evolution of long-distance marine migrations. LOCATION: Subtropical and tropical Atlantic Ocean. METHODS: Using cutting-edge geolocators, we examined the year-round distribution and at-sea activity patterns of adult Bulwer's petrels sampled at five localities throughout the species' breeding range in the Atlantic, within the Azores, Salvages, Canary and Cape Verde archipelagos. We assessed the migratory connectivity of the species and its habitat use at population and metapopulation scales. RESULTS: Our results provide the first evidence of an oriented leapfrog migration in oceanic seabirds. Ecological niche models based on breeding-season data effectively predicted that subtropical waters of the South Atlantic would be the preferred habitat for the northern populations of Bulwer's petrels during the non-breeding season. Habitat modelling also highlighted similarities in distributions between the breeding and non-breeding periods for the southern populations. Data on at-sea activity patterns suggested that birds from the northern and southern populations behave differently during the breeding season, as well as in the northern and southern non-breeding ranges during the non-breeding period. MAIN CONCLUSIONS: These results indicate that specific habitat preferences, presumably related to differences in prey availability, explain the observed distributions and hence the pattern of leapfrog migration described for Bulwer's petrel. Our study demonstrates the utility of integrating diverse tracking data from multiple populations across international boundaries, and habitat modelling, for identifying important areas common to many marine species in the vast oceanic environments. FEDER (CGL2009-11278/BOS); SEO/BirdLife (project LIFE+INDEMARES: LIFE07NAT/E/000732) info:eu-repo/semantics/publishedVersion

Published
2015

Catalog

Books, media, physical & digital resources
See catalog results