Use of unimproved and improved lowland grassland by wintering birds in the UK

Barnett, Philip R.; Whittingham, Mark J.; Bradbury, Richard B.; Wilson, Jeremy D.

doi:10.1016/s0167-8809(03)00278-0

Cited by 38 publications

(34 citation statements)

References 27 publications

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“…Also, abundance of arthropods in grazed pastures (e.g. dung-dwelling specialists) was found to be higher compared to mowed sites (Vickery et al 2001;Barnett et al 2004). About 73% of the pastures in our study area is permanent grassland, grazed by animals instead of being cut for hay production or silage.…”

Section: Dietary and Behavioural Habitat Partitioningmentioning

confidence: 64%

“…mowing and silage making (Chamberlain et al 2000;Kubetzki 2001;Vickery et al 2001;Barnett et al 2004). This development is certainly most favourable for BHG (see also Barnett et al 2004), while it might cause long-term severe effects for CG which are much more dependent on carefully managed pastures at least during winter.…”

Section: Discussionmentioning

confidence: 99%

“…dumps or refuse tips (e.g. Horton et al 1983;Barnett et al 2004). Anthropogenic activities can vary considerably in their importance for different species of gulls.…”

Section: Introductionmentioning

confidence: 99%

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Area utilization of gulls in a coastal farmland landscape: habitat mosaic supports niche segregation of opportunistic species

Schwemmer¹,

Garthe²,

Mundry

2008

Landscape Ecol

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The intensively farmed coastal lowland landscape of Germany, adjacent to the North Sea, provides important foraging opportunities for Blackheaded, Common, Herring and Lesser Black-backed gull (Larus ridibundus, L. canus, L. argentatus and L. fuscus). We expected that spatial and temporal utilization of the landscape mosaic as well as behavioural traits and utilization of food resources would differ between these closely related species, facilitating niche segregation. We recorded habitat types and their utilization by the four species over a whole year. Furthermore, we related species abundance to several abiotic parameters. Black-headed and Common gulls were the most numerous species in the study area throughout the year. In general, the former species preferred bare fields with recently prepared soils and was often associated with tractors in the fields, whereas the latter species was most often found on pastures. Black-headed gulls seem to have a higher ability to exploit ephemeral, food sources associated with human activities whereas common gulls prefer habitats with low human activity and with naturally distributed prey. The most prominent abiotic parameter influencing gull abundance was presence of tractors. Black-headed gulls have most likely benefited from recent changes in agricultural practice, particularly the increase in cropped land, while Common gulls may have suffered from a decline in pastures. At present, utilization of the farmland habitat mosaic leads to niche segregation and supports coexistence, as two of the four gull species mainly forage in the marine environment, while there is significant habitat partitioning between the other two temporally, spatially and behaviourally.

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Section: Dietary and Behavioural Habitat Partitioningmentioning

confidence: 64%

Section: Discussionmentioning

confidence: 99%

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Area utilization of gulls in a coastal farmland landscape: habitat mosaic supports niche segregation of opportunistic species

Schwemmer¹,

Garthe²,

Mundry

2008

Landscape Ecol

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“…Species flying overhead but not using the field/sites were not counted. The logic behind this was that it is not possible to know which fields birds were actually using and as such these birds were excluded from the counts (Barnett et al 2004, Perkins et al 2000. Doublecounting of birds was minimized by the observer taking into consideration birds that were flushed to other fields or to other part of the area being surveyed (Perkins et al 2000).…”

Section: Bird Datamentioning

confidence: 99%

A comparison of winter bird communities in agricultural grassland and cereal habitats in Ireland: implications for Common Agricultural Policy reform

2013

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“…Within the category 'farmland birds' are many species which rely mainly on grassland and the management options for grassland birds within AESs have been informed by several recent studies (e.g. Perkins et al 2000, Vickery et al 2001, Barnett et al 2004, Whittingham & Devereux 2008. Grassland sward management has consistently come out as a key management tool to manipulate predation risk, and also invertebrate food abundance and accessibility, by enabling birds more readily to access below-ground grassland invertebrates , Buckingham et al 2006).…”

mentioning

confidence: 99%

Creating ephemeral resources: how long do the beneficial effects of grass cutting last for birds?

2011

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Use of unimproved and improved lowland grassland by wintering birds in the UK

Cited by 38 publications

References 27 publications

Area utilization of gulls in a coastal farmland landscape: habitat mosaic supports niche segregation of opportunistic species

Area utilization of gulls in a coastal farmland landscape: habitat mosaic supports niche segregation of opportunistic species

A comparison of winter bird communities in agricultural grassland and cereal habitats in Ireland: implications for Common Agricultural Policy reform

Creating ephemeral resources: how long do the beneficial effects of grass cutting last for birds?

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