Now showing items 1572-1591 of 2443

    • Observations of a White-tailed Eagle incubating eggs of a Greylag goose 

      Jacobsen, Karl-Otto; Sexton, David (Others, 2023)
      Interspecific takeovers of nests are thought to be rare in birds. A female White-tailed Eagle Haliaeetus albicilla was observed incubating a nest of a Greylag Goose Anser anser with five eggs at Reinøya, Troms County, ...
    • Observed and projected changes in urbanization and nature conservation in a typical fast growing city of Ethiopia, Jimma 

      Aticho, Abebayehu; Beyene, Abebe; Zelelew, Shimelis Aynalem; Nigussie, Abebe; Gutema, Tariku Mekonnen; Bakkestuen, Vegar; Chala, Desalegn (Peer reviewed; Journal article, 2023)
      Urbanization poses a signifcant threat to biodiversity, particularly in developing nations characterized by high rural–urban migration and inadequate urban planning that fails to consider nature conservation. Insufcient ...
    • Occupancy-based monitoring of ungulate prey species in Thailand indicates population stability, but limited recovery 

      Phumanee, Worrapan; Steinmetz, Robert; Phoonjampa, Rungnapa; Bejraburnin, Thawatchai; Grainger, Matthew; Savini, Tomaso (Peer reviewed; Journal article, 2020)
      Longitudinal studies of wildlife are urgently needed in South-East Asia to understand population responses to the high poaching pressure that characterizes this region. We monitored population trends and habitat use of ...
    • Occurrence and seasonality of Gyrodactylus salaris and G. salmonis (Monogenea) on Arctic char (Salvelinus alpinus (L.)) in the Fustvatnet lake, Northern Norway 

      Mo, Tor Atle; Hansen, Haakon; Hytterød, Sigurd (Peer reviewed; Journal article, 2023)
      Gyrodactylus spp. (Monogenea) were found on 16.9% (233 out of 1376) Arctic char, Salvelinus alpinus (L.), sampled from September 2010 to October 2011 in the Fustvatnet lake, Northern Norway. Two species were identified: ...
    • Ocean climate and egg investment in the black-legged kittiwake Rissa tridactyla 

      Barrett, Robert T; Erikstad, Kjell E; Reiertsen, Tone (Journal article; Peer reviewed, 2017)
      Birds allocate substantial resources to their eggs during the laying period, resources also needed for other concurrent costly processes such as mate acquisition, nest building and site defence. Egg and clutch sizes may ...
    • Ocean currents as a potential dispersal pathway for Antarctica’s most persistent non-native terrestrial insect 

      Bartlett, Jesamine; Convey, Peter; Hughes, K.A.; Thorpe, S.E.; Hayward, S.A.L. (Peer reviewed; Journal article, 2021)
      The non-native midge Eretmoptera murphyi is Antarctica’s most persistent non-native insect and is known to impact the terrestrial ecosystems. It inhabits by considerably increasing litter turnover and availability of soil ...
    • Ocean-wide drivers of migration strategies and their influence on population breeding performance in a declining seabird 

      Fayet, Annette L.; Freeman, Robin; Anker-Nilssen, Tycho; Diamond, Antony; Erikstad, Kjell E; Fifield, Dave; Fitzsimmons, Michelle G; Hansen, Erpur Snær; Harris, Mike P.; Jessopp, Mark; Kouwenberg, Amy-Lee; Kress, Steve; Mowat, Stephen; Perrins, Chris M.; Petersen, Aevar; Petersen, Ib K.; Reiertsen, Tone; Robertson, Gregory J.; Shannon, Paula; Sigurðsson, Ingvar A.; Shoji, Akiko; Wanless, Sarah; Guilford, Tim (Journal article; Peer reviewed, 2017)
      Which factors shape animals’ migration movements across large geographical scales, how different migratory strategies emerge between populations, and how these may affect population dynamics are central questions in ...
    • Off the conservation radar: the hidden story of Europe’s tiny pea clams (Bivalvia: Sphaeriidae) 

      Halabowski, Dariusz; Sousa, Ronaldo; Lopes‑Lima, Manuel; Killeen, Ian; Aldridge, David C.; Zając, Katarzyna; Magerøy, Jon Hamner; Cossey, Daniel Alan; Urbańska, Maria; Österling, Martin; Prié, Vincent (Peer reviewed; Journal article, 2024)
      This study highlights the conservation problems faced by the tiny freshwater bivalves of the family Sphaeriidae, also known as pea, pill, or fingernail clams (or mussels) in Europe. Despite their global distribution, assumed ...
    • Offshore oil rigs – a breeding refuge for Norwegian Black-legged Kittiwakes Rissa tridactyla? 

      Christensen-Dalsgaard, Signe; Langset, Magdalene; Anker-Nilssen, Tycho (Peer reviewed; Journal article, 2020)
      In recent decades, the population of Black-legged Kittiwake Rissa tridactyla has declined substantially in most parts of the North Atlantic. Concurrently, there has been an increased urbanisation of the species, with ...
    • Offshore vindenergianlegg - sjøfugl, havørn, hubro og vadere. En screening av potensielle konfliktområde 

      Christensen-Dalsgaard, Signe; Lorentsen, Svein-Håkon; Dahl, Espen Lie; Follestad, Arne; Hanssen, Frank Ole; Systad, Geir Helge (NINA Rapport;557, Research report, 2010)
      Christensen-Dalsgaard, S., Lorentsen, S.-H., Dahl, E. L., Follestad, A., Hanssen, F. & Systad, G. H. 2010. Offshore vindenergianlegg - sjøfugl, havørn, hubro og vadere. En screening av potensielle konfliktområder - NINA ...
    • Offshore vindenergianlegg og sjøfugl. Oppdatert screening av potensielle konfliktområder på nasjonal skala 

      Christensen-Dalsgaard, Signe; Lorentsen, Svein-Håkon; Hanssen, Frank Ole; Systad, Geir Helge (NINA rapport;616, Research report, 2011)
      Christensen-Dalsgaard, S., Lorentsen, S.-H., Hanssen, F. & Systad, G. H. 2011. Offshore vindenergianlegg og sjøfugl. Oppdatert screening av potensielle konfliktområder på nasjonal skala. - NINA Rapport 616. 78 s. I 2010 ...
    • Olivinfuruskog og rødlistearter i Bjørkedalen, Volda: naturverdi og forvaltningsmuligheter 

      Brandrud, Tor Erik (NINA Rapport;461, Research report, 2009)
      Brandrud, T.E. 2009. Olivinfuruskog og rødlistearter i Bjørkedalen, Volda: naturverdi og forvaltningsmuligheter. - NINA Rapport 461. 24 s. Olivinfuruskog er en sjelden og særnorsk naturtype som har sitt nasjonale og ...
    • Om rovdyr på landet og i byen. Den urban-rurale dimensjonen i de norske rovviltkonfliktene 

      Tangeland, Torvald; Skogen, Ketil; Krange, Olve (NINA rapport;650, Research report, 2010)
      Torvald Tangeland, Ketil Skogen og Olve Krange. 2010. Om rovdyr på landet og i byen. Den urban-rurale dimensjonen i de norske rovviltkonfliktene. - NINA Rapport 650, 84 s NINA gjennomførte høsten 2010 en spørreundersøkelse ...
    • Omfang av motorisert ferdsel i forsøkskommunene sommersesongen 2003 og vintersesongen 2003/2004. Sammenstilling og drøfting av oppsynsregistreringer og halvårsrapporter 

      Østdahl, Torbjørn; Skår, Margrete (NINA Rapport;14, Research report, 2005)
      Østdahl, T. og Skår, M. 2005. Omfang i motorisert ferdsel i forsøkskommunene sommersesongen 2003 og vintersesongen 2003/2004. - NINA Rapport 14. 39 s. Som et ledd i arbeidet med evalueringen av forsøk med ny forvaltningsordning ...
    • Omfang av motorisert ferdsel i forsøkskommunene. Sammenstilling og drøfting av oppsynsregistreringer og halvårsrapporter 2002-2005 

      Østdahl, Torbjørn; Skår, Margrete (NINA Rapport;91, Research report, 2005)
      Østdahl, T. og Skår M. Omfang av motorisert ferdsel i for-søkskommunene. Sammenstilling og drøfting av oppsynsregistreringer og halvårsrapporter 2002-2005- NINA Rapport 91. 37 s. Registreringsmetodikk Som et ledd i arbeidet ...
    • On fitness and partial migration in a large herbivore – migratory moose have higher reproductive performance than residents 

      Rolandsen, Christer Moe; Solberg, Erling Johan; Sæther, Bernt-Erik; Van Moorter, Bram; Herfindal, Ivar; Bjørneraas, Kari (Journal article; Peer reviewed, 2016)
      Partially migratory populations comprise both resident and migratory individuals. Th ese tactics may coexist if their demographic contribution to future generations (i.e. fitness) are equal or vary temporally with environmental ...
    • On the relevance of animal behavior to the management and conservation of fishes and fisheries 

      Cooke, Steven J.; Auld, Heather L.; Birnie-Gauvin, Kim; Elvidge, Chris K.; Piczak, Morgan L.; Twardek, William M.; Raby, Graham D.; Brownscombe, Jacob W.; Midwood, Jonathan D.; Lennox, Robert; Madliger, Christine; Wilson, Alexander D. M.; Binder, Thomas R.; Schreck, Carl B.; McLaughlin, Robert L.; Grant, James; Muir, Andrew M. (Peer reviewed; Journal article, 2022)
      There are many syntheses on the role of animal behavior in understanding and mitigating conservation threats for wildlife. That body of work has inspired the development of a new discipline called conservation behavior. ...
    • One Hundred Pressing Questions on the Future of Global Fish Migration Science, Conservation, and Policy 

      Lennox, Robert J.; Paukert, Craig P.; Aarestrup, Kim; Auger-Méthé, Marie; Baumgartner, Lee; Birnie-Gauvin, Kim; Bøe, Kristin; Brink, Kerry; Brownscombe, Jacob W.; Chen, Yushun; Davidsen, Jan Grimsrud; Eliason, Erika J.; Filous, Alexander; Gillanders, Bronwyn M.; Helland, Ingeborg Palm; Horodysky, Andrij Z.; Januchowski-Hartley, Stephanie R.; Lowerre-Barbieri, Susan K.; Lucas, Martyn C.; Martins, Eduardo G.; Murchie, Karen J.; Pompeu, Paulo S.; Power, Michael; Raghavan, Rajeev; Rahel, Frank J.; Secor, David; Thiem, Jason D.; Thorstad, Eva Bonsak; Ueda, Hiroshi; Whoriskey, Frederick G.; Cooke, Steven J. (Journal article; Peer reviewed, 2019)
      Migration is a widespread but highly diverse component of many animal life histories. Fish migrate throughout the world’s oceans, within lakes and rivers, and between the two realms, transporting matter, energy, and other ...
    • One-quarter of freshwater fauna threatened with extinction 

      Sayer, Catherine A.; Fernando, Eresha; Jiménez, Randall R.; Macfarlane, Nicholas B. W.; Rapacciuolo, Giovanni; Böhm, Monika; Brooks, Thomas M.; Contreras-MacBeath, Topiltzin; Cox, Neil A.; Harrison, Ian; Hoffmann, Michael; Jenkins, Richard; Smith, Kevin G.; Vié, Jean-Christophe; Abbott, John C.; Allen, David J.; Allen, Gerald R.; Barrios, Violeta; Boudot, Jean-Pierre; Carrizo, Savrina F.; Clausnitzer, Viola; Congiu, Leonardo; Charvet, Patricia; Crandall, Keith A.; Cumberlidge, Neil; Cuttelod, Annabelle; Dalton, James; Daniels, Adam G.; De Grave, Sammy; De Knijf, Geert; Dijkstra, Klaas-Douwe B.; Dow, Rory A.; Freyhof, Jörg; García, Nieves; Gessner, Joern; Getahun, Abebe; Gibson, Claudine; Gollock, Matthew J.; Grant, Michael I.; Groom, Alice E. R.; Hammer, Michael P.; Hammerson, Geoffrey A.; Hilton-Taylor, Craig; Hodgkinson, Laurel; Holland, Robert A.; Jabado, Rima W.; Bignoli, Diego Juffe; Kalkman, Vincent J.; Karimov, Bakhtiyor K.; Kipping, Jens; Thorstad, Eva Bonsak (Peer reviewed; Journal article, 2025)
      Freshwater ecosystems are highly biodiverse1 and important for livelihoods and economic development2, but are under substantial stress3. To date, comprehensive global assessments of extinction risk have not included any ...
    • Ongoing niche differentiation under high gene flow in a polymorphic brackish water threespine stickleback (Gasterosteus aculeatus) population 

      Østbye, Kjartan; Taugbøl, Annette; Ravinet, Mark; Harrod, Chris; Pettersen, Ruben Alexander; Bernatchez, Louis (Journal article; Peer reviewed, 2018)
      Background: Marine threespine sticklebacks colonized and adapted to brackish and freshwater environments since the last Pleistocene glacial. Throughout the Holarctic, three lateral plate morphs are observed; the low, partial ...