Guillemots return early to Lundy 12/10/2011
Thu, 10/13/2011 - 10:50 — Grant ShermanThe first Guillemots of the year arrived on the cliffs this morning. 29 birds were on the ledges in Jenny's Cove until at least 8.10am (BST). This is 6 days earlier than 2010 and 15 days earlier than 2008.
Hatch, J.J. & Nisbet, I.C.T. (2011) "Costs of incubation in Common Terns Sterna hirundo: replication and extension of a clutch-enlargement experiment" Ibis 153(1):185–189
Tue, 09/20/2011 - 08:52 — Grant ShermanAbstract: Manipulation of clutch size during incubation has been used in a number of studies to investigate life-history costs of incubation. We increased or decreased clutches of Common Terns Sterna hirundo during incubation and measured subsequent chick growth and productivity. Our results provide little support for the hypothesis that costs of incubation in Common Terns are substantially affected by the number of eggs incubated.
White, C.R., Boertmann, D., Grémillet, D., Butler, P.J., Green J.A. & Martin, G.R. (2011) "The relationship between sea surface temperature and population change of Great Cormorants Phalacrocorax carbo breeding near Disko Bay, Greenland" Ibis 153(1):170–1
Tue, 09/20/2011 - 08:40 — Grant ShermanAbstract: Arctic seas have warmed and sea ice has retreated. This has resulted in range contraction and population declines in some species, but it could potentially be a boon for others. Great Cormorants Phalacrocorax carbo have a partially wettable plumage and seem poorly suited to foraging in Arctic waters. We show that rates of population change of Cormorant colonies around Disko Bay, Greenland, are positively correlated with sea surface temperature, suggesting that they may benefit from a warming Arctic.
