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Article
Ole Thorup, AuteurCamera observations have revealed that traditional visual nest control visits can yield misleading results about nest predation. It is important to know how biases from traditional nest control visits may compromise the conclusions of a study. I[...]
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Veli-Matti Pakanen, Auteur ; Donald Blomqvist, Auteur ; Torgrim Breiehagen, Auteur ; Lars-Åke Flodin, Auteur ; Olavi Hilden, Auteur ; David B. Lank, Auteur ; Mikael Larsson, Auteur ; Terje Lislevand, Auteur ; Kimmo Nuotio, Auteur ; Peter Olsson, Auteur ; Richard Ottvall, Auteur ; Angela Pauliny, Auteur ; Hannes Pehlak, Auteur ; Antti Ronka, Auteur ; Nelli Ronka, Auteur ; Douglas Schamel, Auteur ; Martti Soikkeli, Auteur ; Robert L. Thomson, Auteur ; Ole Thorup, Auteur ; Pavel Tomkovich, Auteur ; Diane Tracy, Auteur ; Kari Koivula, AuteurSupernormal clutches are found across bird species. Such clutches often result from more than one female laying eggs in the same nest and can reflect different behaviours from parasitism to laying mistakes. Enlarged clutches are readily visible [...]
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Ole Thorup, AuteurThis paper presents available count data to review population sizes and trends of seven species of grassland and saltmarsh breeding shorebirds (hereafter ‘meadow birds’) in Denmark: Eurasian Oystercatcher Haematopus ostralegus, Eurasian Curlew N[...]
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Ole Thorup, AuteurThis paper presents available count data to review population sizes and trends of seven species of grassland and saltmarsh breeding shorebirds (hereafter 'meadow birds') in Denmark: Eurasian Oystercatcher Haematopus ostralegus, Eurasian Curlew N[...]
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Veli-Matti Pakanen, Auteur ; Ole Thorup, AuteurCapsule: Apparent adult survival of the critically endangered Baltic Dunlin Calidris alpina schinzii, showed evidence of a decline between 1990 and 2006 from 0.817 to 0.650.Aims: In Europe, declines in wet-grassland breeding waders have been att[...]
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In the 19th and early 20th century Corncrakes Crex crex were widespread and common in hay meadows all over Denmark and, on a more limited scale, also in cultivated fields. The breeding population probably comprised at least 10-20 000 pairs. This[...]
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Thomas Bregnballe, Auteur ; Ole Thorup, Auteur ; Lars Bo Jacobsen, Auteur ; Jorgen Peter Kjeldsen, Auteur ; Mogens Hansen, Auteur
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Ole Thorup, Auteur
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Karsten Laursen, Auteur ; John Frikke, Auteur ; Ole Thorup, Auteur ; Ole Amstrup Mogens Bak, Auteur ; Kim Fisher, Auteur ; Lars Maltha Rasmussen, Auteur
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Ole Thorup, Auteur
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Thomas Eske Holm, Auteur ; Karsten Laursen, Auteur ; Ole Thorup, Auteur ; Ole Amstrup, Auteur ; Mogens Bak, Auteur
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Ole Thorup, Auteur ; Sami Timonen, Auteur ; Donald Blomqvist, Auteur ; Lars-Åke Flodin, Auteur ; Paul Eric Jonsson, Auteur ; Mikael Larsson, Auteur ; Veli-Matti Pakanen, Auteur ; Martti Soikkeli, AuteurThe population of Baltic Dunlins Calidris alpina schinzii is very small and is declining rapidly. To optimize conservation efforts, knowledge about the location of staging and wintering sites is crucial. As part of intensive studies on Dunlins i[...]
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Ole Thorup, Auteur ; Thomas Bregnballe, AuteurAlthough numbers of breeding Pied Avocets in Denmark increased between the 1920s and the early 1990s, they are now declining significantly more rapidly than in almost all other NW European countries. There have been few studies of the causes of [...]
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Ole Thorup, Auteur ; Zydrunas Preiksa, Auteur ; Hannes Pehlak, Auteur ; Martin Altemüller, Auteur ; Hauke Drews, Auteur
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Ole Thorup, AuteurNumbers of Ruff Philomachus pugnax breeding in temperate wet grassland have declined markedly all over Europe during the last 30-50 years. However, at Tipperne, a breeding site in W Denmark with favourable meadow bird management, Ruffs still bre[...]
