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Browsing by Department "Rannsóknasetur Suðurlandi (HÍ)"

Browsing by Department "Rannsóknasetur Suðurlandi (HÍ)"

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  • Davíðsdóttir, Brynja; Gunnarsson, Tomas Gretar; Halldórsson, Guðmundur; Sigurdsson, Bjarni D. (Agricultural University of Iceland, 2016)
    Degradation of ecosystems and introductions of invasive species pose a threat to global biodiversity. Ecosystem restoration and revegetation actions are important for amending habitat loss and for the protection of species of plants and animals. Iceland ...
  • Pardal, Sara; Drews, Anna; Alves, Jose; Ramos, Jaime A.; Westerdahl, Helena (Springer Nature, 2017-05-23)
    The major histocompatibility complex (MHC) encodes proteins that are central for antigen presentation and pathogen elimination. MHC class I (MHC-I) genes have attracted a great deal of interest among researchers in ecology and evolution and have been ...
  • Méndez, Verónica; Gill, Jennifer A.; Alves, Jose; Burton, Niall H. K.; Davies, Richard G. (Wiley-Blackwell, 2017-09-20)
    Aim Population size changes can lead to changes in local abundance and/or site occupancy, depending on the processes influencing site use by individuals. Here, we quantify such changes for wintering waterbirds and assess their implications for widely ...
  • Katrínardóttir, Borgný; Alves, Jose; Sigurjónsdóttir, Hrefna; Hersteinsson, Páll; Gunnarsson, Tomas Gretar (Public Library of Science (PLoS), 2015-07-10)
    Distinct preference of species for habitats is most often driven by long term differences in demographic rates between habitats. Estimating variation in those rates is key for developing successful conservation strategies. Stochastic events can interact ...
  • Bulla, Martin; Prüter, Hanna; Vitnerová, Hana; Tijsen, Wim; Sládeček, Martin; Alves, Jose; Gilg, Olivier; Kempenaers, Bart (Springer Nature, 2017-10-16)
    The relative investment of females and males into parental care might depend on the population’s adult sex-ratio. For example, all else being equal, males should be the more caring sex if the sex-ratio is male biased. Whether such outcomes are evolutionary ...
  • Senner, Nathan R.; Verhoeven, Mo A.; Abad-Gómez, José M.; Alves, Jose; Hooijmeijer, Jos Corstiaan Elbert Wouter; Howison, Ruth A.; Kentie, Rosemarie; Loonstra, A. H.Jelle; Masero, Jose A.; Rocha, Afonso D.; Stager, Maria; Piersma, Theunis (Frontiers Media SA, 2019-04-09)
    Few studies have been able to directly measure the seasonal survival rates of migratory species or determine how variable the timing of migration is within individuals and across populations over multiple years. As such, it remains unclear how likely ...
  • Alves, Jose; Gunnarsson, Tomas Gretar; Sutherland, William J.; Potts, Peter M.; Gill, J. A. (Wiley, 2019-02-14)
    Phenological changes in response to climate change have been recorded in many taxa, but the population-level consequences of these changes are largely unknown. If phenological change influences demography, it may underpin the changes in range size and ...
  • Reneerkens, Jeroen; Versluijs, Tom S. L.; Piersma, Theunis; Alves, Jose; Boorman, Mark; Corse, Colin; Gilg, Olivier; Hallgrimsson, Gunnar Thor; Lang, Johannes; Loos, Bob; Ntiamoa‐Baidu, Yaa; Nuoh, Alfred A.; Potts, Peter M.; Horn, Job; Lok, Tamar (Wiley, 2019-10-04)
    Evolutionary theories of seasonal migration generally assume that the costs of longer migrations are balanced by benefits at the non-breeding destinations. We tested, and rejected, the null hypothesis of equal survival and timing of spring migration ...
  • Gill, Jennifer A.; Alves, Jose; Gunnarsson, Tomas Gretar (The Royal Society, 2019-07-29)
    Many migratory systems are changing rapidly in space and time, and these changes present challenges for conservation. Changes in local abundance and site occupancy across species' ranges have raised concerns over the efficacy of the existing protected ...
  • Viegas, Ivan; Araújo, Pedro M.; Rocha, Afonso D.; Villegas, Auxiliadora; Jones, John G.; Ramos, Jaime A.; Masero, José A.; Alves, Jose (The Company of Biologists, 2017-01-12)
    The migrant black-tailed godwit (Limosa limosa) traditionally used natural wetlands in the Iberian Peninsula to prepare for migratory flights by feeding mainly in estuaries. In recent decades, this species has become increasingly dependent on rice ...
  • van Bemmelen, Rob S. A.; Kolbeinsson, Yann; Ramos, Raül; Gilg, Olivier; Alves, Jose; Smith, Malcolm; Schekkerman, Hans; Lehikoinen, Aleksi; Petersen, Ib Krag; Þórisson, Böðvar; Sokolov, Aleksandr A.; Välimäki, Kaisa; van der Meer, Tim; Okill, J. David; Bolton, Mark; Moe, Børge; Hanssen, Sveinn Are; Bollache, Loïc; Petersen, Aevar; Thorstensen, Sverrir; González-Solís, Jacob; Klaassen, Raymond H. G.; Tulp, Ingrid (Frontiers Media SA, 2019-04-04)
    Non-breeding movement strategies of migratory birds may be expected to be flexibly adjusted to the distribution and quality of habitat, but few studies compare movement strategies among populations using distinct migration routes and wintering areas. ...
  • Johannesdottir, Lilja; Alves, Jose; Gill, Jennifer A.; Gunnarsson, Tomas Gretar (Resilience Alliance, Inc., 2017)
    Intensified agricultural practices have driven biodiversity loss throughout the world, and although many actions aimed at halting and reversing these declines have been developed, their effectiveness depends greatly on the willingness of stakeholders ...
  • Araújo, Pedro M.; Viegas, Ivan; Rocha, Afonso D.; Villegas, Auxiliadora; Jones, John G.; Mendonça, Liliana; Ramos, Jaime A.; Masero, José A.; Alves, Jose (Springer Science and Business Media LLC, 2019-07-11)
    Mechanisms underlying fat accumulation for long-distance migration are not fully understood. This is especially relevant in the context of global change, as many migrants are dealing with changes in natural habitats and associated food sources and ...
  • Johannesdottir, Lilja; Alves, Jose; Gill, J. A.; Gunnarsson, Tomas Gretar (Wiley, 2017-12-21)
    Agriculture is one of the primary threats to biodiversity but agricultural land can also provide key resources for many species and, in some parts of the world, agricultural land supports important populations of species of conservation concern. In ...
  • Laidlaw, Rebecca; Gunnarsson, Tomas Gretar; Méndez Aragón, Verónica; Carneiro, Camilo; Þórisson, Böðvar; Wentworth, Adam; Gill, Jennifer A.; Alves, Jose (Wiley, 2020-03-13)
    Ground-nesting species are vulnerable to a wide range of predators and often experience very high levels of nest predation. Strategies to reduce nest vulnerability can include concealing nests in vegetation and/or nesting in locations in which nests ...
  • Alves, Jose; Dias, Maria P.; Méndez, Verónica; Katrínardóttir, Borgný; Gunnarsson, Tomas Gretar (Springer Nature, 2016-11-30)
    Landbirds undertaking within-continent migrations have the possibility to stop en route, but most long-distance migrants must also undertake large non-stop sea crossings, the length of which can vary greatly. For shorebirds migrating from Iceland to ...
  • Carneiro, Camilo; Gunnarsson, Tomas Gretar; Alves, Jose (Frontiers Media SA, 2019-07-02)
    The timing of annual events is key for organisms that exploit seasonal resources, as deviations from optimal timing might result in considerable fitness costs. Under strong time selection, individuals likely have fewer suitable strategies available ...
  • Morrison, Catriona; Alves, Jose; Gunnarsson, Tomas Gretar; Þórisson, Böðvar; Gill, Jennifer A. (Wiley, 2019-07-19)
    In migratory birds, early arrival on breeding sites is typically associated with greater breeding success, but the mechanisms driving these benefits are rarely known. One mechanism through which greater breeding success among early arrivers can potentially ...