+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Egg size in herring gulls larus argentatus on mellum island north sea west germany the influence of nest vegetation nest density and colony development



Egg size in herring gulls larus argentatus on mellum island north sea west germany the influence of nest vegetation nest density and colony development



Colonial Waterbirds 9(1): 68-80



During recent decades, the Herring Gull colony on Mellum (Wadden Sea, West Germany) has been constantly growing and spreading. This study investigated whether egg size variation within the colony area was related to differences in breeding habitat, to nest density, or to the shift of the colony center to the north of the island. Nest density generally increased with increasing vegetation measurements, but decreased near maximum values. With increasing vegetation parameters egg length and volume-index decreased for both all nests studied and for average values per transect plot. Egg breadth decreased on the latter basis only. The negative correlations of egg size with nest density lost significant after partialing out vegetation variables. We found higher mean egg size values in the new breeding areas, especially where nests were situated in sparse vegetation and at lower densities; there little change in numbers occurred. At the northern edge of the colony, breeding birds increased in number rapidly (17% per year), nested in greater density, and started breeding later in the season. In the traditional breeding area, with tall and dense vegetation, eggs were smaller, showed greater intraclutch variance in breadth, and were laid earlier. Nest density was similar to that at the northern edge, but breeding pairs decreased (6% per year). The smaller breadth and volume-index in this area was especially due to the earliest laying birds. The results correspond best with the hypothesis that on the average older birds with smaller eggs bred at the traditional breeding sites.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 005337948

Download citation: RISBibTeXText

DOI: 10.2307/1521144


Related references

Population size and density dependant effects on breeding success in herring gulls Larus argentatus on Mellum island Brutbestand und Dichteabhangigkeit des Bruterfolges der Silbermowe Larus argentatus auf Mellum. Journal fuer Ornithologie. Januar; 1391: 21-36, 1998

Population size and density dependant effects on breeding success in Herring Gulls (Larus argentatus) on Mellum island. Journal fuer Ornithologie 139(1): 21-36, 1998

The effects of ditching a salt marsh on colony and nest site selection by herring gulls larus argentatus. American Midland Naturalist 100(1): 54-63, 1978

Estimates of herring gulls larus argentatus breeding pair numbers on mellum langeoog and memmert wadden sea west germany by the transect method. Vogelwelt 104(1): 25-39, 1983

Nest cover and chick survival in herring gulls (Larus argentatus). Colonial Waterbirds 6: 154-159, 1983

Discrimination of the threat of direct vs. tangential approach to the nest by incubating herring larus argentatus and great black backed gulls larus marinus. Journal of Comparative and Physiological Psychology 95(5): 676-684, 1981

The food of herring common and black headed gulls larus argentatus larus canus larus ridibundus collected at refuse dumps in emden and leer west germany. Vogelwelt 104(3): 95-107, 1983

Dynamics of organochlorine compounds in herring gulls larus argentatus 1. distribution and clearance of carbon 14 in free living herring gulls larus argentatus. Environmental Toxicology and Chemistry 5(1): 41-48, 1986

Dynamics of organochlorine compounds in herring gulls (Larus argentatus). I. Distribution and clearance of DDE in free-living herring gulls (Larus argentatus). Environmental toxicology and chemistry(1): 41-48, 1986

Yellow-legged herring gulls (Larus argentatus ssp.) breeding in north-Germany. Bulletin Gull Study Group, 9 No. 3, 1981

Number and origin of herring gulls larus argentatus resting on helgoland west germany. Vogelwarte 32(3): 219-225, 1984

Presence of nesting lesser black backed gulls larus fuscus graellsii and great black backed gulls larus marinus in an urban colony of herring gulls larus argentatus argenteus. Gerfaut 79(1-4): 153-158, 1989

Herring gulls Larus argentatus and yellow-legged gulls Larus cachinans on garbage dumps in Mecklenburg (NE Germany). Analysis of ringing recoveries. Vogelwelt 115(6): 267-286, 1994

Numbers and behaviour of roof-nesting herring gulls Larus argentatus and lesser black-backed gulls Larus fuscus in Belgium Aantalsevolutie en gedrag van dakbroedende Zilvermeeuwen Larus argentatus en Kleine Mantelmeeuwen Larus fuscus in Belgie. Natuur.oriolus. Juli-Augustus-September; 683: 123-126, 2002

Morphological Variation Among Herring Gulls ( Larus argentatus ) and Great Black-Backed Gulls ( Larus marinus ) in Eastern North America. Waterbirds 39(sp1): 253-268, 2016