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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 1491 to 1500 of 20775 (0.03 seconds)Spelling suggestions: "subject:"cology"" "subject:"cacology""
| 1491 |
The plant ecology of a limestone grassland : competition and spatio-temporal dynamicsMcLellan, Andrew John January 1995 (has links)
No description available.
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| 1492 |
An ecological database of the British floraPeat, Helen Jacqueline January 1992 (has links)
No description available.
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| 1493 |
The landscape ecology of hedgerows with particular reference to island biogeographyJones, Stephen Howard January 1992 (has links)
No description available.
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| 1494 |
The ecology of the Chironomidae in a Phragmites reedbed at Cop Mere (Staffordshire, England)Bell, P. G. January 1987 (has links)
No description available.
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| 1495 |
A study of factors influencing consumer preference for certain beers with particular reference to flavourPierson, B. J. January 1980 (has links)
No description available.
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| 1496 |
A study of the re-establishment of chalk grassland vegetation following arable cultivationBooth, Karen Dawn January 1988 (has links)
No description available.
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| 1497 |
Evaluation of various biomanipulations aimed at controlling freshwater pulmonate snailsBabiker, Ismail Elsheikh January 1993 (has links)
No description available.
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| 1498 |
Behavioral ecology of carnivoresGittleman, John L. January 1984 (has links)
No description available.
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| 1499 |
The terrestrial ecology of the natterjack, Bufo calamita(Laurenti), and the common toad, Bufo bufo (Linnaeus)Denton, Jonathan Simon January 1991 (has links)
No description available.
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| 1500 |
Aspects of the ecology of the black-headed gull (Larus ridibundus) with comparative data on the common gull (L. canus)MacKinnon, Gabriela Elisabeth January 1987 (has links)
Between 1982 and 1984, 893 Black-headed and 117 Common Gulls were trapped outside the breeding season in northeast England, and individually marked with wingtags or colour-rings. About 40% of marked adult Black-headed and Common Gulls returned to the study area in subsequent years, although adult Black-headed Gulls marked at the coast in the 1982-83 season returned in considerably higher proportions. Proportionately fewer second-year and first-year birds returned than adults. These percentages are considerably lower than the estimated annual survival rate for Black-headed Gulls, showing that some of the birds probably spent subsequent winters outside the study area. Some of the birds which did not return to the study area were recovered or seen elsewhere, mainly in eastern parts of Britain: few moved to the west coast. Foreign Black-headed Gulls which overwintered in the British Isles were most numerous compared to British birds in the south and east of the British Isles. A small proportion of Continental Black-headed Gulls remained in Britain during the breeding season: the consequences of these birds joining the British breeding population are discussed. Overwintering Black-headed Gulls in the study area were observed feeding inland on fields and refuse tips, and at the coast. First-years were uncommon compared to adults at the coast, less so on tips, and were relatively most common on fields. Females made up similar proportions of flocks at the coast and on inland fields, but were excluded to some extent from tips. Neither the survival rates of adult and ■ first-year British Black-headed Gulls, nor the weights of adult Black-headed Gulls caught in northeast England, were usually affected by the severity of weather in winter. The migrations and movements of Black-headed Gulls are discussed and compared to those of other species.
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