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Meltofte et al., Hans
Populations and breeding schedules of waders, Charadrii, in High Arctic Greenland

1985, 44 sider
Illustreret
19 x 26,5 cm
ISBN 978-87-635-1167-4
Serie: Monographs on Greenland | Meddelelser om Grønland, vol. 243
ISSN 0025-6676
Serie: Bioscience, vol. 16
ISSN 0106-1054



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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.

 
Emneområde | Arktiske studier |
Emneord | Fugle |
Specifikt emneord | Ornitologi | Vadefugle |
Verdensdel m.v. | Grønland |
Sprog | Engelsk |

Indhold

Pressen skrev


Alle udgivelser af

Hans Meltofte et al. som forfatter

Effects of climate variation on the breeding ecology of Arctic shorebirds
2007, ISBN 978-87-635-1279-4, hft
Effects of climate variation on the breeding ecology of Arctic shorebirds
2007, ISBN 978-87-635-1279-4, hft
Observations on waders (Charadriidae) at Scoresby Sund, East Greenland
1981, ISBN 978-87-635-1146-9, hft
Observations on waders (Charadriidae) at Scoresby Sund, East Greenland
1981, ISBN 978-87-635-1146-9, hft
Ornithological observations in Northeast Greenland between 74°30' and 76°00' N. lat., 1976
1981, ISBN 978-87-635-1136-0, hft
Ornithological observations in Northeast Greenland between 74°30' and 76°00' N. lat., 1976
1981, ISBN 978-87-635-1136-0, hft
Effects of climate variation on the breeding ecology of Arctic shorebirds
2007, ISBN 978-87-635-3057-6, e-publikation
Effects of climate variation on the breeding ecology of Arctic shorebirds
2007, ISBN 978-87-635-3057-6, e-publikation
 






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