| [the aerobic bacterial intestinal flora of various wintering geese species]. | the aerobic fecal flora of wintering brent goos (branta bernicla), barnacle goose (branta leucopsis), greylag goose (anser anser), white-fronted goose (anser albifrons), pink-footed goose (anser brachyrhynchus), and bean goose (anser fabalis) was studied. there were no specific differences between the various geese. bacterial counts were in the range of 10(5)-10(7) cpu per gram of feces. neither pathogenic bacteria nor rotavirus could be detected in the fecal samples of the wintering geese, so t ... | 1982 | 7136353 |
| energy savings in formation flight of pink-footed geese | fifty-four skeins of pink-footed geese (anser brachyrhynchus) were photographed from directly underneath to eliminate the effects of perspective distortion, and the wing-tip spacings (the distance between adjacent birds' wing tips perpendicular to the flight path at maximum wingspan) and depths (the distance between adjacent birds' body centres parallel to the flight path) were measured at the same time as local wind speeds. the photographs were used to test for savings in induced power from win ... | 1994 | 9317742 |
| colonization history of the high-arctic pink-footed goose anser brachyrhynchus. | population structure and phylogeography of the pink-footed goose, anser brachyrhynchus baillon 1833, was studied using mtdna control region sequences (221 bp) from 142 individuals. present breeding areas of the species in greenland, iceland, and svalbard were largely covered by ice during the late pleistocene. in pairwise comparisons phist estimates showed significant differentiation among eastern and western populations, whereas sampling localities within both areas were not differentiated. the ... | 2005 | 15643960 |
| survival of svalbard pink-footed geese anser brachyrhynchus in relation to winter climate, density and land-use. | 1. global change may strongly affect population dynamics, but mechanisms remain elusive. several arctic goose species have increased considerably during the last decades. climate, and land-use changes outside the breeding area have been invoked as causes but have not been tested. we analysed the relationships between conditions on wintering and migration staging areas, and survival in svalbard pink-footed geese anser brachyrhynchus. using mark-recapture data from 14 winters (1989-2002) we estima ... | 2006 | 16922853 |
| spatial, temporal, and species variation in prevalence of influenza a viruses in wild migratory birds. | although extensive data exist on avian influenza in wild birds in north america, limited information is available from elsewhere, including europe. here, molecular diagnostic tools were employed for high-throughput surveillance of migratory birds, as an alternative to classical labor-intensive methods of virus isolation in eggs. this study included 36,809 samples from 323 bird species belonging to 18 orders, of which only 25 species of three orders were positive for influenza a virus. informatio ... | 2007 | 17500589 |
| the consequences of climate-driven stop-over sites changes on migration schedules and fitness of arctic geese. | 1. 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 of paramount interest. 2. therefore, we developed a stochastic dynamic model to generate spatially and temporally explicit predictions of stop-over site use. for each site, we varied energy expenditure, onset of spring, intake rate and day-to-day stochast ... | 2008 | 18397249 |
| taxonomy of the bean goose-pink-footed goose. | the bean goose anser fabalis and the pink-footed goose a. brachyrhynchus breed in the tundra and taiga zones of eurasia and eastern greenland, and the taxonomy of the group based on morphology has been controversial. we investigated the phylogenetic relationships within the bean goose-the pink-footed goose complex using mitochondrial control region sequences of 199 individuals collected from the breeding areas in the palaearctic and eastern nearctic. we found three mitochondrial clades geographi ... | 2008 | 18550388 |
| the relevance of environmental conditions for departure decision changes en route in migrating geese. | the timing of life-cycle events crucially influences fitness, particularly in migratory birds, which visit chains of sites with varying seasonality. here, we used a proportional hazards model to identify local environmental factors, which a long-distance migrant, the pink-footed goose (anser brachyrhynchus), uses for departure decisions on multiple sites along its spring flyway from denmark via norway to svalbard. our results not only identified day length, local accumulated temperature, and the ... | 2008 | 18705381 |
| goose management schemes to resolve conflicts with agriculture: theory, practice and effects. | in 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 and agriculture to an acceptable level. since 2006, norway has offered subsidies to farmers that provide refuge areas for geese on their land. we evaluate the mid-norwegian goose management subsidy scheme, with a view to its adjustment to prevailing ecologi ... | 2017 | 28215015 |
| implementation of the first adaptive management plan for a european migratory waterbird population: the case of the svalbard pink-footed goose anser brachyrhynchus. | an 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 migratory waterbird population in europe. an international working group (including statutory agencies, ngo representatives and experts) agreed on objectives and actions to maintain the population in favourable conservation status, while accounting for biodiver ... | 2017 | 28215011 |
| combining modelling tools to evaluate a goose management scheme. | many 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 generic modelling tool that can be used to designate the best locations for refuges and to gauge the area needed to accommodate the geese. with a species distribution model, locations are ranked according to goose suitability. the size of the area to be desi ... | 2017 | 28215007 |
| could have gone wrong: effects of abrupt changes in migratory behaviour on harvest in a waterbird population. | to sustainably exploit a population, it is crucial to understand and reduce uncertainties about population processes and effects of harvest. in migratory species, management is challenged by geographically separated changing environmental conditions, which may cause unexpected changes in species distribution and harvest. we describe the development in the harvest of svalbard-breeding pink-footed geese (anser brachyrhynchus) in relation to the observed trajectory and migratory behaviour of the po ... | 2015 | 26247849 |
| value of information in natural resource management: technical developments and application to pink-footed geese. | the "value of information" (voi) is a generic term for the increase in value resulting from better information to guide management, or alternatively, the value foregone under uncertainty about the impacts of management (yokota and thompson, medical decision making 2004; 24: 287). the value of information can be characterized in terms of several metrics, including the expected value of perfect information and the expected value of partial information. we extend the technical framework for the val ... | 2015 | 25691972 |
| towards a solution to the goose-agriculture conflict in north norway, 1988-2012: the interplay between policy, stakeholder influence and goose population dynamics. | this paper presents results from a multidisciplinary study of a negotiation process between farmers and wildlife authorities which led to an agricultural subsidy scheme to alleviate conflicts between agriculture and geese in norway. the svalbard-breeding population of pink-footed geese anser brachyrhynchus has increased considerably over the last decades and conflicts with farmers have escalated, especially at stopover sites in spring when geese feed on newly sprouted pasture grass. in vesteråle ... | 2013 | 23977175 |
| first de novo whole genome sequencing and assembly of the pink-footed goose. | annotated genomes can provide new perspectives on the biology of species. we present the first de novo whole genome sequencing for the pink-footed goose. in order to obtain a high-quality de novo assembly the strategy used was to combine one short insert paired-end library with two mate-pair libraries. the pink-footed goose genome was assembled de novo using three different assemblers and an assembly evaluation was subsequently performed in order to choose the best assembler. for our data, allpa ... | 2017 | 28860085 |
| scaring as a tool to alleviate crop damage by geese: revealing differences between farmers' perceptions and the scale of the problem. | expanding 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 pasture damage by goose scaring. we predicted farmers' scaring effort (a measure of dissatisfaction) to increase on fields closer to goose roosting sites where goose grazing intensity was highest (measured by dropping counts). results showed no such relatio ... | 2017 | 28215017 |
| from reference genomes to population genomics: comparing three reference-aligned reduced-representation sequencing pipelines in two wildlife species. | recent advances in genomics have greatly increased research opportunities for non-model species. for wildlife, a growing availability of reference genomes means that population genetics is no longer restricted to a small set of anonymous loci. when used in conjunction with a reference genome, reduced-representation sequencing (rrs) provides a cost-effective method for obtaining reliable diversity information for population genetics. many software tools have been developed to process rrs data, th ... | 2019 | 31159724 |
| seroprevalence of avian influenza in baltic common eiders (somateria mollissima) and pink-footed geese (anser brachyrhynchus). | blood plasma was collected during 2016-2018 from healthy incubating eiders (somateria molissima, n = 183) in three danish colonies, and healthy migrating pink-footed geese (anser brachyrhynchus, n = 427) at their spring roost in central norway (svalbard breeding population) and their novel flyway through the finnish baltic sea (russian breeding population). these species and flyways altogether represent terrestrial, brackish and marine ecosystems spanning from the western to the eastern and nort ... | 2020 | 32585505 |
| a review of pathogens in selected baltic sea indicator species. | here we review the state-of-the-art of pathogens in select marine and terrestrial key species of the baltic sea, i.e. ringed seal (pusa hispida), harbour seal (phoca vitulina), grey seal (halichoerus grypus), harbour porpoise (phocoena phocoena), common eider (somateria mollissima), pink-footed goose (anser brachyrhynchus) and white-tailed eagle (haliaeetus albicilla). this review is the first to merge and present available information and baseline data for the fp7 bonus balthealth project: balt ... | 2020 | 32070804 |
| interspecific comparison of the fecal microbiota structure in three arctic migratory bird species. | the gut microbiota of birds is known to be characterized for different species, although it may change with feeding items. in this study, we compared the gut microbiota of birds with different feeding behaviors in the same habitat. we collected fecal samples from three arctic species, snow buntings plectrophenax nivalis, sanderlings calidris alba, and pink-footed geese anser brachyrhynchus that are phylogenetically quite distant in different families to evaluate effects of diet on gut microbiota ... | 2020 | 32607176 |
| detection of two arctic birds in greenland and an endangered bird in korea using rgb and thermal cameras with an unmanned aerial vehicle (uav). | unmanned aerial vehicles (uavs), so-called 'drones', have been widely used to monitor wild animals. here, we tested a uav with red, green, and blue (rgb) and thermal cameras to detect free-living birds in a high arctic region in north greenland and in a restricted area in the republic of korea. small flocks of molting pink-footed geese (anser brachyrhynchus) near sea ice and incubating common ringed plovers (charadrius hiaticula) in the arctic environment were chosen for the rgb and thermal imag ... | 2019 | 31483842 |
| avian influenza virus surveillance in high arctic breeding geese, greenland. | the connectedness in arctic regions between migratory waterbird populations originating from different continents and the potential for virus exchange at their shared arctic breeding ground point to the need to explore the largely unstudied circumpolar circulation of avian influenza viruses (aiv). we here report the investigation of aiv in wild birds and lakes in a high arctic area of northeast greenland. no aiv could be detected in the fecal, feather, and water samples collected from large floc ... | 2018 | 29944408 |
| demographic inference from whole-genome and rad sequencing data suggests alternating human impacts on goose populations since the last ice age. | we investigated how population changes and fluctuations in the pink-footed goose might have been affected by climatic and anthropogenic factors. first, genomic data confirmed the existence of two separate populations: western (iceland) and eastern (svalbard/denmark). second, demographic inference suggests that the species survived the last glacial period as a single ancestral population with a low population size (100-1,000 individuals) that split into the current populations at the end of the l ... | 2017 | 28980346 |
| first detection of highly pathogenic avian influenza virus in norway. | several outbreaks of highly pathogenic avian influenza (hpai) caused by influenza a virus of subtype h5n8 have been reported in wild birds and poultry in europe during autumn 2020. norway is one of the few countries in europe that had not previously detected hpai virus, despite widespread active monitoring of both domestic and wild birds since 2005. | 2021 | 34118927 |