Large-scale geographical variation confirms that climate change causes birds to lay earlier

• Advances in the phenology of organisms are often attributed to climate change, but alternatively, may reflect a publication bias towards advances and may be caused by environmental factors unrelated to climate change. Both factors are investigated using the breeding dates of 25 long-term studied populations of Ficedula flycatchers across Europe. Trends in spring temperature varied markedly between study sites, and across populations the advancement of laying date was stronger in areas where the spring temperatures increased more, giving support to the theory that climate change causally affects breeding date advancement.

Ämnesord

NATURVETENSKAP  -- Biologi (hsv//swe)

NATURAL SCIENCES  -- Biological Sciences (hsv//eng)

Nyckelord

life history

laying date

clutch size

climate change

ficedula hypoleuca

ficedula albicollis

tits parus-major

ficedula-hypoleuca

clutch size

date

fluctuations

flycatcher

responses

traits

trends

Animals

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)