Breeding status of the Red Kite<i>Milvus milvus</i>in Britain in 2000

Wotton, Simon R.; Carter, I.; Cross, Anthony V.; Etheridge, Brian; Snell, Noel; Duffy, Kevin J.; Thorpe, Reg; Gregory, Richard D.

doi:10.1080/00063650209461276

Cited by 16 publications

(8 citation statements)

References 5 publications

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“…To take a theoretical example, Red Kites Milvus milvus in the UK were restricted for much of the 20th century to parts of Wales, where game preservation did not take hold, due mainly to persecution in the 19th and 20th centuries (Newton 1998). But the Welsh climate would have given a naïve modeller an entirely false indication of the species’ climatic needs, and it has now been re‐introduced very successfully to parts of central and eastern England and Scotland (Wotton et al . 2002), where the climate is very much drier.…”

Section: Changes In Distributions and Geographical Rangementioning

confidence: 99%

The impact of climate change on birds

Crick

2004

Ibis

479

335

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Weather is of major importance for the population dynamics of birds, but the implications of climate change have only recently begun to be addressed. There is already compelling evidence that birds have been affected by recent climate changes. This review suggests that although there is a substantial body of evidence for changes in the phenology of birds, particularly of the timing of migration and of nesting, the consequences of these responses for a species' population dynamics is still an area requiring in-depth research. The potential for phenological miscuing (responding inappropriately to climate change, including a lack of response) and for phenological disjunction (in which a bird species becomes out of synchrony with its environment) are beginning to be demonstrated, and are also important areas for further research. The study of climatically induced distributional change is currently at a predictive modelling stage, and will need to develop methods for testing these predictions. Overall, there is a range of intrinsic and extrinsic factors that could potentially inhibit adaptation to climate change and these are a high priority for research.

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Section: Changes In Distributions and Geographical Rangementioning

confidence: 99%

The impact of climate change on birds

Crick

2004

Ibis

479

335

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“…One of the reasons for this is that a separate population estimate should be calculated for each stratum and these estimates must be added together to get an overall estimate of the total population. Likewise, confidence limits on these estimates have to be found by combining information from the strata (Box 2.2; see Wilkinson et al 2002, Wotton et al 2002.…”

Section: Fig 27mentioning

confidence: 99%

Bird census and survey techniques

Gregory¹,

Gibbons²,

Donald³

2004

Bird Ecology and Conservation

316

211

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“…Declines have been attributed mainly to habitat degradation and intensification, and to illegal killing through persecution and poisoning (e.g. Villafuerte et al . 1998, Viñuela et al .…”

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confidence: 99%

“…1999), the Red Kite is now considered as a declining species (BirdLife International 2004). However, some breeding populations have been increasing, for instance in Sweden and in Switzerland (Evans & Pienkowski 1991), and in the UK where the species was re-introduced in England and Scotland (Wotton et al . 2002, Carter & Newbery 2004.…”

mentioning

confidence: 99%

Breeding biology of the Red Kite Milvus milvus in Corsica

Mougeot

Bretagnolle

2006

Ibis

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The breeding biology of the Red Kite Milvus milvus is still little known in the southern part of its range (Mediterranean), despite recent conservation concerns and major declines in most insular populations (Sicily, Sardinia and Balearics). We report here on the breeding biology of the Red Kite in Corsica in 1996–99 and on recent population trends there. In a 42‐km2 study area located in the northwest of the island (Balagne region), breeding density was locally high (1.17–1.78 breeding pairs/km2). Breeding dispersion ranged from loosely colonial to dispersed, with average nearest‐neighbour distance of 444 ± 316 m (range 50–2000) (all data as means ± sd). Kites established breeding territories in January–February, and 92.4% of territorial pairs laid a clutch (n = 238). Laying took place between February and May (mean lay date: 27 March ± 16 days, n = 147). Clutch size averaged 2.44 ± 0.71 (1–5 eggs, n = 96), hatching success 66.9% and fledging success 78.6%. Productivity averaged 1.33 ± 0.88 young per breeding attempt (n = 221) and 1.65 ± 0.65 young per successful breeding attempt (n = 173). Overall breeding success was 51.4 ± 38.0% (n = 88). We describe the growth of young (wing, weight, tarsus and bill) and show a marked seasonal decline in clutch size and breeding performance, with pairs laying earlier producing larger clutches and being more successful than later breeding pairs. Unlike most other insular Mediterranean Red Kite populations that have recently declined, the breeding population in the northwest of Corsica, which accounts for c. 25% of the whole island population, increased from 25 to 35 pairs in 1989 to a maximum of 80–90 pairs in 1997. This increase was probably related to the lack of persecution and a local increase in abundance of Rabbits Oryctolagus cuniculus, following their introduction in the late 1970s, which provided an important feeding resource for Kites. Finally, we compare our results with those from other Red Kite populations studied in Europe. We found that there is a latitudinal gradient in laying date and productivity across Western Europe populations, but no evidence of an insular syndrome in the Corsican population.

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Breeding status of the Red KiteMilvus milvusin Britain in 2000

Cited by 16 publications

References 5 publications

The impact of climate change on birds

The impact of climate change on birds

Bird census and survey techniques

Breeding biology of the Red Kite Milvus milvus in Corsica

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