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Populations and Breeding Schedules of Waders, Charadrii, in High Arctic Greenland

Monograph

Series: Bioscience (Monographs on Greenland subseries) Volume: 16

Hans Meltofte (Author) et al

44 pages, illustrations

Museum Tusculanum Press, University of Copenhagen

Paperback | Jan 1985 | #212205 | ISBN: 8763511673
Availability: Usually dispatched within 1-2 weeks Details
NHBS Price: £23.99 $31/€29 approx

About this book

Waders are the dominant birds of the high arctic tundra of Greenland, both in terms of population densities and number of species. Of 11 species of waders breeding regularly in Greenland, nine have their main distribution within the high arctic part. Charadrius hiaticula, Arenaria interpres, Calidris canutus, Calidris alpina, Calidris alba and Phalaropus fulicarius are the most abundant. Living conditions in high arctic Greenland are characterized by extremely low and often sparse vegetation, moderate snow-cover and short cool summers. Large regional, local and annual differences occur, however, and the breeding phenology and population densities of waders are described and analysed in relation to these differences. The annual schedules of the wader population are reviewed, and the governing factors discussed for each stage, as well as the factors involved in controlling population densities, sizes and changes, and distribution on a larger scale.

A very strong negative correlation was found between start of laying and snow-cover in early June, while breeding densities were best correlated with snow-free vegetation cover at this time. The most important ultimate factors involved are probably feeding conditions early in the season and, in snow-rich areas, also increasing predation risk with increasing snow-cover. Compared to other arctic areas, the waders in high arctic Greenland show moderate or low population densities, but they breed earlier than most other arctic populations, Low productivity, as compared to the extremely productive low arctic tundras of North America and Siberia, is responsible for the lower densities, while the limited spring snow-cover makes it impossible for the waders to breed earlier in high arctic Greenland.

Finally an attempt is made to estimate the total population sizes of the waders breeding in high arctic Greenland, using both breeding density estimates and estimates of the same populations during winter in the Old World.


Contents

Introduction
Material
Special account
Discussion
Acknowledgements
Epilogue
References
 


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