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Article
Ingunn M. Tombre, Auteur ; Henrik Kristoffersen, Auteur ; Jesper Madsen, AuteurGoose parental behaviour is costly and represents a compromise between an individual’s need to spend time and resources maintaining its own body condition and survival with that required to successfully rear young. Geese are long-term monogamous[...]
Article
Lisa Vergin, Auteur ; Kevin Kuhlmann Clausen, Auteur ; Jesper Madsen, AuteurSuitable foraging habitats are essential for migratory birds during their wintering period, as well as alternative staging areas to which they can relocate, e.g. due to changes in weather conditions. This study focusses on the habitat use of Tai[...]
Article
Jesper Madsen, Auteur ; Kees H. T. Schreven, Auteur ; Gitte H. Jensen, Auteur ; Fred A. Johnson, Auteur ; Leif Nilsson, Auteur ; Bart A. Nolet, Auteur ; Jorma Pessa, Auteur
Article
Jesper Madsen, Auteur ; Jesper Pedersen, Auteur ; Lei Cao, Auteur ; Kevin K. Clausen, AuteurBarnacle Geese wintering in an intensively farmed area in Southeast Denmark were GPS tagged in early March. Twenty tagged geese selected large open (especially permanent) grasslands above relative availability and close to their roosts, although[...]
Article
Kevin K. Clausen, Auteur ; Kees H. T. Schreven, Auteur ; Jesper Madsen, AuteurDans Wildfowl (70 2020)Tracking of individuals is increasingly being used in waterfowl research. However, the effects of capture and tags on waterfowl welfare and ecology are poorly understood and too rarely reported. In this paper, time budget data are used to invest[...]
Article
Fred A. Johnson, Auteur ; Mikko Alhainen, Auteur ; Anthony D. Fox, Auteur ; Jesper Madsen, Auteur ; Matthieu Guillemain, AuteurThe demography of many European waterbirds is not well understood because most countries have conducted little monitoring and assessment, and coordination among countries on waterbird management has little precedent. Yet intergovernmental treati[...]
Article
Ove M. Gundersen, Auteur ; Kevin K. Clausen, Auteur ; Jesper Madsen, AuteurAbstract. Body mass accumulation is a widely used measure of waterfowl condition and predictor of fitness. So far, however, post-breeding changes in body mass affecting autumn and winter condition have been largely unexplored. Here, changes in b[...]
Article
Kevin Kuhlmann Clausen, Auteur ; Thomas Kjaer Christensen, Auteur ; Ove Martin Gundersen, Auteur ; Jesper Madsen, Auteur ; Des Thompson, Auteur
Article
Johannes M. Baveco, Auteur ; Anne-Kari Bergjord, Auteur ; Jarle W. Bjerke, Auteur ; Magda E. Chudzińska, Auteur ; Loïc Pellissier, Auteur ; Caroline E. Simonsen, Auteur ; Jesper Madsen, Auteur ; Ingunn M. Tombre, Auteur ; Bart A. Nolet, AuteurMany goose species feed on agricultural land, and with growing goose numbers, conflicts with agriculture are increasing. One possible solution is to designate refuge areas where farmers are paid to leave geese undisturbed. Here, we present a gen[...]
Article
Einar Eythórsson, Auteur ; Ingunn M. Tombre, Auteur ; Jesper Madsen, AuteurIn 2012, the four countries hosting the Svalbard population of pink-footed goose Anser brachyrhynchus along its flyway launched an International Species Management Plan for the population. One of the aims was to reduce conflicts between geese an[...]
Article
Jesper Madsen, Auteur ; James Henty Williams, Auteur ; Fred A. Johnson, Auteur ; Ingunn M. Tombre, Auteur ; Sergey Dereliev, Auteur ; Eckhart Kuijken, AuteurAn International Species Management Plan for the Svalbard population of the pink-footed goose was adopted under the Agreement on the Conservation of African-Eurasian Migratory Waterbirds in 2012, the first case of adaptive management of a migrat[...]
Article
David A. Stroud, Auteur ; Jesper Madsen, Auteur ; Anthony D. Fox, AuteurIncreasing abundance of geese in North America and Europe constitutes a major conservation success, but has caused increasing conflicts with economic, health and safety interests, as well as ecosystem impacts. Potential conflict resolution throu[...]
Article
Caroline E. Simonsen, Auteur ; Ingunn M. Tombre, Auteur ; Jesper Madsen, AuteurExpanding populations of farmland foraging geese are causing escalating conflict with agriculture. We used questionnaires to investigate farmers´ perceptions in mid-Norway of spring staging geese and the extent to which they attempt to reduce pa[...]
Article
Anthony D. Fox, Auteur ; Jesper Madsen, AuteurWild geese wintering in western Europe were declining by the 1930s probably due to loss of natural habitat and over exploitation through hunting, although the causes will never be known. Refuge provision and hunting restrictions from the 1950s e[...]
Article
Thomas Kjær Christensen, Auteur ; Jesper Madsen, Auteur ; Tommy Asferg, Auteur ; Jens Peder Hounisen, Auteur ; Lars Haugaard, AuteurReliable hunting bag statistics are a prerequisite for sustainable harvest management. Recently, Internet-based hunting bag reporting systems have been introduced in some European countries, e.g. Denmark, which may enable faster and more detaile[...]
Article
Kevin Kuhlmann Clausen, Auteur ; Jesper Madsen, AuteurSite fidelity is a strong and widespread feature of many waterfowl species, but little is known about the response of philopatric birds to changing environmental conditions at their preferred staging sites. In this study we analyse the response [...]
Article
Kevin Kuhlmann Clausen, Auteur ; Jesper Madsen, AuteurSite fidelity is a strong and widespread feature of many waterfowl species, but little is known about the response of philopatric birds to changing environmental conditions at their preferred staging sites. In this study we analyse the response [...]
Rapport
A. Marjakangas, Auteur ; M. Alhainen, Auteur ; Anthony David Fox, Auteur ; T. Heinicke, Auteur ; Jesper Madsen, Auteur ; L. Nilsson, Auteur ; S. Rozenfeld, Auteur | Bonn : AEWA | Species Action Plan | 2015Taiga Bean Geese ( Anser fabalis fabalis ) breed discontinuously in the boreal zone from Fennoscandia to Western Siberia and winter in North - west Europe and Central Asia. The Taiga Bean Goose is one of the few declining goose populations in th[...]
Article
Kevin Kuhlmann Clausen, Auteur ; Morten Frederiksen, Auteur ; Jesper Madsen, AuteurCapsule The ability to estimate mark loss of ringed animals is important to assess demographic parameters from mark-recapture studies correctly. Based on 23 years of neck collar recovery data from the Svalbard breeding population of Pink-footed [...]
Article
Silke Bauer, Auteur ; Martijn Van Dinther, Auteur ; Kjell-Arild Hogda, Auteur ; Marcel Klaassen, Auteur ; Jesper Madsen, Auteur1. How climatic changes affect migratory birds remains difficult to predict because birds use multiple sites in a highly interdependent manner. A better understanding of how conditions along the flyway affect migration and ultimately fitness is [...]
Article
Magda Chudzinska, Auteur ; Jesper Madsen, Auteur ; Jacob Nabe-Nielsen, AuteurDuring the spring migration, the Pink-footed Goose Anser brachyrhynchus stops in mid-Norway to refuel before continuing its flight to the Svalbard breeding grounds. While in mid-Norway the geese feed on pasture, stubble and newly sown grain fiel[...]
Article
Kevin Kuhlmann Clausen, Auteur ; Jesper Madsen, AuteurRinging and marking are widely used techniques in avian ecology to assist studies of migration, survival and behaviour, and often used to estimate population sizes. Only rarely, however, have the effects of these markings on bird viability been [...]
Article
Marcel Klaassen, Auteur ; Steffen Hahn, Auteur ; Harry Korthals, Auteur ; Jesper Madsen, AuteurMany Arctic-breeding waterbirds are thought to bring nutrients for egg production from southern latitudes to allow early breeding. It has proved problematic to quantify the extent of such capital breeding and identify whether nutrients for egg p[...]
Article
Gitte Høj Jensen, Auteur ; Ingunn M. Tombre, Auteur ; Jesper Madsen, AuteurFor huntable waterbird species, the autumn migration strategy may be important for their fitness, as their behaviour and environmental factors may influence their exposure to hunting mortality. Hunting activity may also reduce the access to food[...]
Article
Magda E. Chudzińska, Auteur ; Jacob Nabe-Nielsen, Auteur ; Bart A. Nolet, Auteur ; Jesper Madsen, AuteurThe migration strategy of many capital breeders is to garner body stores along the flyway at distinct stopover sites. The rate at which they can fuel is likely to be strongly influenced by a range of factors, such as physiology, food availabilit[...]
Article
Gitte Høj Jensen, Auteur ; Jesper Madsen, Auteur ; Ingunn M. Tombre, AuteurSince the mid-20th century, many European and North American goose populations have increased dramatically in numbers, causing conflict with agricultural interests in their staging and wintering areas. In some cases, to mitigate such impacts of [...]
Article
Silke Bauer, Auteur ; Jesper Madsen, Auteur ; Marcel Klaassen, AuteurDans Ardea (94(3) 2006)Long-distance bird migration consists of several flight episodes interrupted by a series of resting and refuelling periods on stopover sites. We assessed the role of food availability as the determinant of staging decisions focusing on the follo[...]
Article
Jesper Madsen, Auteur ; Cornelia Jaspers, Auteur ; Mikkel Tamstorf, Auteur ; Christian Ebbe Mortensen, Auteur ; Frank Riget, AuteurGreening of the Arctic due to climate warming may provide herbivores with richer food supplies, resulting in higher herbivore densities. In turn, this may cause changes in vegetation composition and ecosystem function. In 1982-1984, we studied t[...]
Article
Terry V. Callaghan, Auteur ; Craig E. Tweedie, Auteur ; Jonas Akerman, Auteur ; Christopher Andrews, Auteur ; Johan Bergstedt, Auteur ; Malcolm G. Butler, Auteur ; Torben R. Christensen, Auteur ; Dorothy Cooley, Auteur ; Ulrika Dahlberg, Auteur ; Ryan K. Danby, Auteur ; Fred J. A. Daniels, Auteur ; Johannes G. de Molenaar, Auteur ; Jan Dick, Auteur ; Christian Ebbe Mortensen, Auteur ; Diane Ebert-May, Auteur ; Urban Emanuelsson, Auteur ; Hakan Eriksson, Auteur ; Henrik Hedenas, Auteur ; Greg H. R. Henry, Auteur ; David S. Hik, Auteur ; John E. Hobbie, Auteur ; Elin J. Jantze, Auteur ; Cornelia Jaspers, Auteur ; Cecilia Johansson, Auteur ; Margareta Johansson, Auteur ; David R. Johnson, Auteur ; Jill F. Johnstone, Auteur ; Christer Jonasson, Auteur ; Catherine Kennedy, Auteur ; Alice J. Kenney, Auteur ; Frida Keuper, Auteur ; Saewan Koh, Auteur ; Charles J. Krebs, Auteur ; Hugues Lantuit, Auteur ; Mark J. Lara, Auteur ; David Lin, Auteur ; Vanessa L. Lougheed, Auteur ; Jesper Madsen, Auteur ; Nadya Matveyeva, Auteur ; Daniel C. McEwen, Auteur ; Isla H. Myers-Smith, Auteur ; Yuriy K. Narozhniy, Auteur ; Hakan Olsson, Auteur ; Veijo A. Pohjola, Auteur ; Larry W. Price, Auteur ; Frank Riget, Auteur ; Sara Rundqvist, Auteur ; Anneli Sandstroem, Auteur ; Mikkel Tamstorf, Auteur ; Rik Van Bogaert, Auteur ; Sandra Villarreal, Auteur ; Patrick J. Webber, Auteur ; Valeriy A. Zemtsov, AuteurUnderstanding the responses of tundra systems to global change has global implications. Most tundra regions lack sustained environmental monitoring and one of the only ways to document multi-decadal change is to resample historic research sites.[...]
Article
Ingunn M. Tombre, Auteur ; Kjell A. Hogda, Auteur ; Jesper Madsen, Auteur ; Larry R. Griffin, Auteur ; Eckhart Kuijken, Auteur ; Paul Shimmings, Auteur ; Eileen Rees, Auteur ; Christine Verscheure, AuteurAn earlier onset of spring has been recorded for many parts of Eurasia in recent decades. This has consequences for migratory species, both in changing the conditions encountered by individuals on reaching migratory sites and in affecting cues r[...]
