The impact of wintering geese on crop yields in Bulgarian Dobrudzha: implications for agri-environment schemes

Petkov, Nicky; Harrison, Anne; Stamenov, Anton; Hilton, Geoff M.

doi:10.1007/s10344-017-1119-0

Cited by 7 publications

(5 citation statements)

References 24 publications

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“…During the last few decades, most European goose populations have increased considerably (Fox and Madsen 2017), in response to a combination of improved conservation efforts and a shift in habitat use to energy-rich agricultural foods (Gauthier et al 2005, Fox and Abraham 2017, Clausen et al 2018. Growing numbers of geese in the landscape has led to increased foraging pressure on crops and competition with livestock (Olsen et al 2017, Petkov et al 2017. In addition, the increase in goose populations have led to concerns for negative effects on air safety, tundra vegetation, human safety and other wildlife (Bradbeer et al 2017, Buij et al 2017.…”

mentioning

confidence: 99%

Effectiveness of lasers to reduce goose grazing on agricultural grassland

Clausen¹,

Marcussen

Knudsen³

et al. 2019

Wildlife Biology

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mentioning

confidence: 99%

Effectiveness of lasers to reduce goose grazing on agricultural grassland

Clausen¹,

Marcussen

Knudsen³

et al. 2019

Wildlife Biology

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“…According to Patterson et al (1989) geese damages to winter crops are often more substantial on a local scale. Hence, other studies detecting that high grazing pressure reduces wheat harvest by 16-30% (Flegler et al, 1987), by 15% (Patterson et al, 1989) and by 13.2% (Petkov et al, 2017).…”

Section: Discussionmentioning

confidence: 94%

“…Analysis of yield is a prominent method for evaluating the crop damage. Harvested winter wheat are assessed by counting average dry mass per grain, average number of grains per wheat ear and total number of wheat ears (Petkov et al, 2017). Summers (1990) suggested a method of calculating dry mass of straws, number of wheat ears, total and 100g dry mass of grains, harvest index and weed biomass.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Damage Caused by Migrating Geese in Agricultural Fields

Brazaitis,

Šimkevičius,

Brazaitytė

et al. 2024

Rural Development 2019

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The increasing migrating goose populations seasonally feed in the agricultural fields and grasslands. Annually, farmers encounter and abide the challenges of intense winter wheat and permanent grasslands grazing pressures. In Lithuania, migrating geese caused damages initiate conflicts between farmers, conservationists and hunters. Thus, we aimed to determine the winter wheat and permanent grasslands yield reduction by observing migrating geese grazing intensity and characteristics. In three Lithuanian south-western and central regions we established 15 study areas. During the spring migration geese droppings were counted every 10-15 days. Harvested winter wheat and hay were dried and weighted, wheat ears were counted, grains extracted and weighted. Results proved that migrating geese obviously damage and reduce yield of both winter wheat and permanent grasslands. Grazing reduced winter wheat ear development and grain weight. The high grazing pressure in winter wheat of 7.45 droppings/m 2 reduced yield by 10.8%. In the permanent grasslands geese presence indicator was 10.49±0.43SE droppings/m 2 suggesting high grazing pressure reducing grasslands yield by 15.2%.

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“…Birds have been shown to suppress the herbivore arthropods in wild plants and several crops [17,20]. Furthermore, birds not only provide pollination services for many plants [21], they also directly caused losses to farmers by consuming crops including cereals and fruits [22][23][24][25]. To our knowledge, there is presently a limited number of studies synthesizing evidence to show that the indirect services actually cascade down to crop production (but see [20,26]).…”

Section: Introductionmentioning

confidence: 99%

Insights into the coexistence of birds and humans in cropland through meta-analyses of bird exclosure studies, crop loss mitigation experiments, and social surveys

et al. 2023

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Birds share lands with humans at a substantial scale and affect crops. Yet, at a global scale, systematic evaluations of human–bird coexistence in croplands are scarce. Here, we compiled and used meta-analysis approaches to synthesize multiple global datasets of ecological and social dimensions to understand this complex coexistence system. Our result shows that birds usually increase woody, but not herbaceous, crop production, implying that crop loss mitigation efforts are critical for a better coexistence. We reveal that many nonlethal technical measures are more effective in reducing crop loss, e.g., using scaring devices and changing sow practices, than other available methods. Besides, we find that stakeholders from low-income countries are more likely to perceive the crop losses caused by birds and are less positive toward birds than those from high-income ones. Based on our evidence, we identified potential regional clusters, particularly in tropical areas, for implementing win-win coexistence strategies. Overall, we provide an evidence-based knowledge flow and solutions for stakeholders to integrate the conservation and management of birds in croplands.

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The impact of wintering geese on crop yields in Bulgarian Dobrudzha: implications for agri-environment schemes

Cited by 7 publications

References 24 publications

Effectiveness of lasers to reduce goose grazing on agricultural grassland

Effectiveness of lasers to reduce goose grazing on agricultural grassland

Assessment of Damage Caused by Migrating Geese in Agricultural Fields

Insights into the coexistence of birds and humans in cropland through meta-analyses of bird exclosure studies, crop loss mitigation experiments, and social surveys

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