TY - JOUR
AU - Pollard E.
AB - Fluctuations in the abundance of butterflies at many sites in Britain are monitored in a national scheme. Both annual fluctuations and long term trends at individual sites are often very closely synchronised with regional data which excludes the study sites. I argue from such synchrony: (1) that these population are likely to be limited by density-dependent factors and (2) that population fluctuations are little influenced by interactions which are specific to local communities.
BT - Oikos
DA - February 1, 1991
DB - JSTOR
IS - 1
LA - eng
N2 - Fluctuations in the abundance of butterflies at many sites in Britain are monitored in a national scheme. Both annual fluctuations and long term trends at individual sites are often very closely synchronised with regional data which excludes the study sites. I argue from such synchrony: (1) that these population are likely to be limited by density-dependent factors and (2) that population fluctuations are little influenced by interactions which are specific to local communities.
PY - 1991
SN - 0030-1299
SP - 7
EP - 10
ST - Oikos
T2 - Oikos
TI - Synchrony of Population Fluctuations: The Dominant Influence of Widespread Factors on Local Butterfly Populations
UR - http://www.jstor.org/stable/3544985
VL - 60
Y2 - 2013-07-15 14:29:37
ER -