Barnacle goose Branta leucopsis derogation shooting effort in relation to abundance and vulnerable crops

Clausen, Kevin Kuhlmann; Balsby, Thorsten J. S.; Clausen, Preben; Nielsen, Rasmus Due; Skov, Flemming; Nyegaard, Timme; Madsen, Jesper

doi:10.1016/j.agee.2021.107746

Cited by 6 publications

(5 citation statements)

References 21 publications

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“…In Denmark, the populations of different water bird species vary. For example, the population size of barnacle geese in Denmark has increased five-fold in recent decades, while the size of the Danish mallard population is relatively stable ( 46 , 47 ). Bird migration flyways, wild bird densities, and bird movement are all suspected to play a role in AI transmission and should be considered when investigating the seasonality of AI detection.…”

Section: Discussionmentioning

confidence: 99%

Risk factors for avian influenza in Danish poultry and wild birds during the epidemic from June 2020 to May 2021

Liu,

Kjær,

Boklund

et al. 2024

Front. Vet. Sci.

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Exploring the risk factors of avian influenza (AI) occurrence helps us to monitor and control the disease. Since late 2020, the number of avian influenza outbreaks in domestic and wild birds has increased in most European countries, including Denmark. This study was conducted to identify potential risk factors for wild birds and poultry during the epidemic in 2020/2021 in Denmark. Using Danish AI surveillance data of actively surveyed poultry and passively surveyed wild birds from June 2020 to May 2021, we calculated geographical attributes for bird locations and assessed the potential risk factors of AI detections using logistic regression analyses. 4% of actively surveyed poultry and 39% of passively surveyed wild birds were detected with AI circulating or ongoing at the time. Of these, 10 and 99% tested positive for the H5/H7 AI subtypes, respectively. Our analyses did not find any statistically significant risk factors for actively surveyed poultry within the dataset. For passively surveyed wild birds, bird species belonging to the Anseriformes order had a higher risk of being AI virus positive than five other taxonomic bird orders, and Galliformes were of higher risk than two other taxonomic bird orders. Besides, every 1 km increase in the distance to wetlands was associated with a 5.18% decrease in the risk of being AI positive (OR (odds ratio) 0.95, 95% CI 0.91, 0.99), when all other variables were kept constant. Overall, bird orders and distance to wetlands were associated with the occurrence of AI. The findings may provide targets for surveillance strategies using limited resources and assist in risk-based surveillance during epidemics.

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Section: Discussionmentioning

confidence: 99%

Risk factors for avian influenza in Danish poultry and wild birds during the epidemic from June 2020 to May 2021

Liu,

Kjær,

Boklund

et al. 2024

Front. Vet. Sci.

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“…Future studies should investigate the behavioural responses of tracked geese towards lethal repelling, a management tool which is used in other barnacle goose range countries (e.g. Denmark, Heldbjerg et al, 2022) and has only recently become permitted in Finland.…”

Section: Discussionmentioning

confidence: 99%

“…Our results demonstrate that repelling success and return time do not depend on the type of repelling measure. The sound of a gunshot, which the geese might associate with a serious threat as some of the individuals will have experienced lethal shooting, for example, during migration in Russia or in the non-breeding areas (Heldbjerg et al, 2022), did not cause the individuals to fly longer distances or to reduce their return probability compared with the human approach (Figure 2a,e,f). In crows, shooting was found to have a greater effect on the behaviour compared with non-lethal trapping, with increased flight initiation distances in areas with shooting (Fujioka, 2020).…”

Section: Differences Between Repelling Methodsmentioning

confidence: 99%

Effects of multiple targeted repelling measures on the behaviour of individually tracked birds in an area of increasing human–wildlife conflict

Heim

Piironen

Heim

et al. 2022

Journal of Applied Ecology

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“…At the regional level, the County Administrative Boards (CABs) play an important role, e.g., by granting permission for derogation shooting (i.e. shooting of protected species or outside open hunting season for huntable species) 61 . Hunters are represented at all levels in the management system with local hunters needed as part of the implementation of flyway management of geese.…”

Section: Methodsmentioning

confidence: 99%

The importance of structural, situational, and psychological factors for involving hunters in the adaptive flyway management of geese

Eriksson

Månsson

Liljebäck

et al. 2023

Sci Rep

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Adaptive flyway management of superabundant geese is emerging as a strategy to reduce damage to agricultural crops and other ecosystem disservices, while also ensuring sustainable use and conservation objectives. Given the calls for intensified hunting as part of flyway management in Europe, we need to increase the understanding of structural, situational, and psychological factors important for goose hunting among hunters. Our survey data, retrieved in southern Sweden, showed a higher potential to intensify hunting among goose hunters than other hunters. In response to hypothetical policy instruments (including regulations, collaborative, and others), hunters declared a minor increase in their intention to hunt geese, with the greatest expected increase among goose hunters should the hunting season be extended. Situational factors (e.g., access to hunting grounds) were associated with goose hunting (frequency, bag size, and intention to increase hunting). In addition, controlled motivation (derived from external pressures or to avoid guilt) and more importantly autonomous motivation (due to hunting being enjoyable or valuable) were along with goose hunter identity positively associated with goose hunting. Hunters’ involvement in flyway management may be encouraged by using policy instruments to remove situational barriers and facilitate their autonomous motivation.

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Barnacle goose Branta leucopsis derogation shooting effort in relation to abundance and vulnerable crops

Cited by 6 publications

References 21 publications

Risk factors for avian influenza in Danish poultry and wild birds during the epidemic from June 2020 to May 2021

Risk factors for avian influenza in Danish poultry and wild birds during the epidemic from June 2020 to May 2021

Effects of multiple targeted repelling measures on the behaviour of individually tracked birds in an area of increasing human–wildlife conflict

The importance of structural, situational, and psychological factors for involving hunters in the adaptive flyway management of geese

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