Woodpigeon<i>Columba palumbus</i>movements in eastern England

Haynes, P.; Inglis, Ian; Isaacson, Tony J.; Fryday, Steven L.

doi:10.1080/00063650309461287

Cited by 4 publications

(5 citation statements)

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“…Daily activity ranges of woodpigeons in the present study were on average approximately 270 ha (data not shown). Like the data from Haynes et al , this finding reveals that woodpigeons utilize more than 1 field, and also other habitats within their daily activity range for foraging. Birds such as woodpigeons use the landscape on larger scales than individual fields or even some farms in current agricultural landscapes (cf.…”

Section: Discussionsupporting

confidence: 77%

“…These sizes of daily activity ranges suggest that a PT value of 1 (meaning that 100% of the diet from a local population within 21 d is taken from 1 or some treated fields within the animals’ activity ranges) overestimates the risk and results in an unrealistic PT value estimate for pesticide risk assessments according to the EFSA protection goal. Woodpigeons utilize multiple habitats, as expressed by rather large home ranges, which results in the use of a large variation in specific habitats (see Haynes et al , and can be seen from the entire data of the present study evaluated here for stubble fields only).…”

Section: Discussionmentioning

confidence: 71%

“…There is 1 published woodpigeon study supporting our results that appropriate long‐term PT values are much smaller than 1.0 for woodpigeons for any kind of habitat, including highly preferred habitats like stubble fields. Haynes et al showed a shift in daily woodpigeon home ranges, with a mean of 254 ha for adults and 294 ha for fledged young in summer, and even 628 ha and 1283 ha, respectively, in winter months. These sizes of daily activity ranges suggest that a PT value of 1 (meaning that 100% of the diet from a local population within 21 d is taken from 1 or some treated fields within the animals’ activity ranges) overestimates the risk and results in an unrealistic PT value estimate for pesticide risk assessments according to the EFSA protection goal.…”

Section: Discussionmentioning

confidence: 99%

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Appropriate exposure estimates for wildlife risk assessments of crop protection products based on continuous radio telemetry: A case study with woodpigeons

Ludwigs

Ebeling

Fredricks

et al. 2016

Enviro Toxic and Chemistry

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The registration of pesticides follows guidance published by the European Food Safety Authority (EFSA). As a default, the EFSA guidance document on risk assessment for birds and mammals assumes that animals feed exclusively on pesticide-treated fields. However, the guidance document suggests refining the risk via the proportion of food animals obtain from a treated field or specific crop (expressed via the portion of diet obtained from a treated area [PT value]). The EFSA guidance equalizes the portion of food taken from a treated area per day with the portion of time spent potentially foraging over the course of a day within this area. Therefore, radiotracking is commonly used to gather species-, crop-, and season-specific PT data, and radio telemetry of continuously tracked farmland species can deliver individual PT values for a given day, crop, and species. In the present study the authors introduce a way of calculating long-term PT values based on empirically recorded data via telemetry field studies for the most appropriate use in wildlife risk assessment of pesticides. The novel aspect of the proposal is that the authors follow the prerequisite given by EFSA to cover the long-term risk by introducing 21-d PT values that aim to cover both intra- and inter-individual variability of foraging focal farmland species in cropped habitats. Currently, the intra-individual variability is not taken into account for PT calculations. The authors demonstrate this approach and discuss EFSA guidance input requirements for PT values recorded in field studies, based on a PT field study conducted with woodpigeons (Columba palumbus) radiotracked in an agricultural landscape in the United Kingdom. The results indicate that a 21-d PT value considering intra-individual variability gives a more appropriate PT value for long-term risk assessments. Environ Toxicol Chem 2017;36:1270-1277. © 2016 SETAC.

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Section: Discussionsupporting

confidence: 77%

Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

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Appropriate exposure estimates for wildlife risk assessments of crop protection products based on continuous radio telemetry: A case study with woodpigeons

Ludwigs

Ebeling

Fredricks

et al. 2016

Enviro Toxic and Chemistry

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“…Cereal seed consumption in freshly drilled fields by gray partridges may be influenced by regular releases of captive‐bred gray partridges in France, which may have different feeding behavior than wild gray partridges (i.e., after breeding, gray partridges are looking for game bird feeders within the fields).The wood pigeon was the second most frequently observed species in fields during our 2011 and 2012 bird surveys, with a higher abundance of wood pigeon than gray partridge. Their feeding habits (forming large flocks when a cereal field is used as a source of food), their capacity to collect seeds quickly, and their known large daily foraging range in the agricultural landscape, which generally contains stubble fields where cereals are drilled in autumn, might explain these results (Haynes et al ).…”

Section: Discussionmentioning

confidence: 99%

Selecting appropriate focal species for assessing the risk to birds from newly drilled pesticide‐treated winter cereal fields in France

Bonneris

Gao

Prosser

et al. 2019

Integr Envir Assess & Manag

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Identifying focal bird species appropriate to the situation in which a plant protection product is used is important for refined risk assessment (EFSA 2009). We analyzed the results of extensive field observations of newly drilled cereal fields in France in autumn over 2 seasons to determine real bird focal species. In 2011, birds were observed before and after drilling on wheat and barley fields drilled with imidacloprid‐treated seeds (i.e., “treatment” fields) or seeds treated with compounds other than imidacloprid (i.e., “alternative treatment” fields). Bird abundance, species richness, and diversity were significantly higher in wheat fields than barley fields; these findings led us to monitor only wheat fields in 2012. Statistical analyses did not show a significant effect of the drilling itself or between the treatment fields and the alternative treatment fields on the number and type of bird species. These results led to the pooling of 2011 data on all fields for focal species determination. Similarly, all bird monitoring data generated in 2012 before and after drilling were pooled and analyzed. Rules for determination of candidate focal species detailed in the EFSA (2009) guidance were followed. Carrion crow, wood pigeon, gray partridge, skylark, common starling, and pied wagtail were the bird species most frequently observed on wheat fields. This list of candidate species was processed to determine the most relevant focal species according to the method of Dietzen et al. (2014); this process resulted in the selection of skylark, gray partridge, wood pigeon, and pied wagtail as focal species to assess risks to birds for pesticides applied during drilling of winter cereals in France (September through November). Integr Environ Assess Manag 2019;00:000–000. © 2018 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals, Inc. on behalf of Society of Environmental Toxicology & Chemistry (SETAC)

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“…Nest tree disperse short distances (Haynes, Inglis, Isaacson, & Fryday, 2003;Paradis, Baillie, Sutherland, & Gregory, 1998), but it is possible that founders of the earliest urbanised populations arrived from urbanised wood pigeon populations in Southern Sweden or Central Europe. Also in this case colonisation might first occur at the Finnish coastal areas and only later continue towards inland areas.…”

Section: Habitatsmentioning

confidence: 99%