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Changes in phenology of hoverflies in a central England garden
Author(s) -
GRAHAMTAYLOR LYN G.,
STUBBS ALAN E.,
BROOKE M. de L.
Publication year - 2009
Publication title -
insect conservation and diversity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 39
eISSN - 1752-4598
pISSN - 1752-458X
DOI - 10.1111/j.1752-4598.2008.00034.x
Subject(s) - phenology , period (music) , climate change , spring (device) , population , geography , ecology , climatology , global warming , air temperature , physical geography , environmental science , biology , demography , meteorology , mechanical engineering , physics , sociology , acoustics , engineering , geology
. 1 Hoverfly data, obtained from 20 species during 1991–2007 from a single garden in Peterborough, England, were analysed to test for temporal trends in timing of first and last appearance, flight‐period length and maximum number. 2 During this period of climate warming, first appearance in spring has become significantly earlier for three species and flight period longer for a different set of three species. 3 Key correlates of first appearance date and flight‐period length were winter temperature, which increased over the study period, and spring temperature which showed a non‐significant warming trend. Wetter summers also marginally lengthened the flight period. In addition, there were significant year effects, suggestive of population responses to changing climate independent of prevailing temperature. 4 However, there was little evidence that last appearances in autumn have become later, and maximum numbers have not increased. 5 These trends match those reported from other, better‐studied taxa.