Výsledky vyhledávání - "J. C. Coulson"

Ecology and Colonial Structure of Large Gulls in an Urban Colony: Investigations and Management at Dumfries, SW Scotland

Autor: B. A. Coulson, J. C. Coulson

Publikováno v: Waterbirds. 32:1-15

This study made at Dumfries, SW Scotland, has revealed new information on the ecology and social structure of an urban colony of Lesser Black-backed and Herring Gulls Larus fuscus and L. argentatus. There has been a decline in the numbers of gulls ne

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1a3d274d1b31b4fddf4f4e152651e182
https://doi.org/10.1675/063.032.0101

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Sexing Black‐legged Kittiwakes by measurement

Autor: J. C. Coulson

Publikováno v: Ringing & Migration. 24:233-239

The effectiveness of using biometric data to sex Black‐legged Kittiwakes Rissa tridactyla in northeast England has been examined. No single measurement or group of measurements was successful in sexing all individuals. The head and bill length was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fb7ae2f1b5d64e5d8f8ef8059f164fbb
https://doi.org/10.1080/03078698.2009.9674397

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THE EFFECT OF AGE AND DENSITY OF BREEDING BIRDS ON THE TIME OF BREEDING OF THE KimWAKE RISSA TRIDACTYLA

Autor: J. C. COULSON & E. WHITE

Publikováno v: Ibis. 102:71-86

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49dc0238a8a186f7cda86d72404e7cdd
https://doi.org/10.1111/j.1474-919x.1960.tb05093.x

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Measuring immigration and philopatry in seabirds; recruitment to Black-legged Kittiwake colonies

Autor: B. A. Coulson, J. C. Coulson

Publikováno v: Ibis. 150:288-299

The degree of philopatry in two new Black-legged Kittiwake Rissa tridactyla colonies in northeast England was studied for 36 and 16 successive years, respectively. There was a tendency in both colonies for the number of recruits to the breeding group

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e6c02944991d6675b27d05c8d35663b2
https://doi.org/10.1111/j.1474-919x.2007.00777.x

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Reduced reproductive performance prior to death in the Black-legged Kittiwake: senescence or terminal illness?

Autor: J. C. Coulson, J. A. Fairweather

Publikováno v: Journal of Avian Biology. 32:146-152

The breeding of Black-legged Kittiwakes Rissa tridactyla in their last breeding season has been compared with that of pairs which survived to the next breeding season. The time of laying was not affected but the clutch size, breeding success and prod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::398931c3156ac42fdc8b6c3c34476d5d
https://doi.org/10.1034/j.1600-048x.2001.320207.x

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Effects of cleaning a tidal river of sewage on gull numbers: a before-and-after study of the River Tyne, northeast England

Autor: S.J. Raven, J. C. Coulson

Publikováno v: Bird Study. 48:48-58

For most of the 20th century, the tidal reaches of the River Tyne in northeast England were used as an open sewer for organic wastes from almost a million people. This produced anaerobic conditions in the river, but supplied an appreciable source of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c93367544b2bb39a606d81b10af11c3
https://doi.org/10.1080/00063650109461202

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The Lepidoptera fauna associated with Calluna vulgaris: effects of plant architecture on abundance and diversity

Autor: K. A. Haysom, J. C. Coulson

Publikováno v: Ecological Entomology. 23:377-385

1. The effects of plant architecture on the Lepidoptera assemblage associated with heather Calluna vulgaris were studied at four locations in northern England and southern Scotland in 1992 and 1993. The study areas were Calluna vulgaris–Vaccinium m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::68039299f33e895777baf48a763defd9
https://doi.org/10.1046/j.1365-2311.1998.00152.x

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A test of the validity of insect food-plant and life-history records: Lepidoptera on heather (Calluna vulgaris)

Autor: C. A. Fielding, J. C. Coulson

Publikováno v: Ecological Entomology. 20:343-350

1 A comparison was made between data collected from a literature search and a field study on the species richness and larval phenology of the Lepidoptera that feed as larvae on Calluna vulgaris. 2 Of the macrolepidopteran species that the literature

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::14fc4de2a3ceb967d4068412442df370
https://doi.org/10.1111/j.1365-2311.1995.tb00466.x

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Jackdaws and magpies as vectors of milkborne human campylobacter infection

Autor: P. R. Sisson, J. C. Coulson, A. O. Sobo, S. J. Hudson, N. F. Lightfoot, K. Russell

Publikováno v: Epidemiology and Infection. 107:363-372

SUMMARYIn 1990 we reported that milk bottles pecked by jackdaws and magpies were a probable source of human Campylobacter infection. During April to June 1990 an extended study of Campylobacter infections was carried out in the Gateshead area. Prior

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cf0807c86f61c53377885dacd3a318b
https://doi.org/10.1017/s0950268800049001

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