The difference
in seasonal range is because of the difference in seasonal temperature range.
The Song Sleuth app was just released for iOS, with an Android version in the works for this fall, and it not only helps people become better birders by helping them identify birds by their songs, but it also includes access to The David Sibley Bird Reference, which offers additional details about the birds, including the birds»
seasonal range maps, song samples, and illustrations of their appearance.
We've noted
the seasonal range for every member of our top ten.
TIGGE is designed to span the medium - range (out to day 15), but a similar multi-model ensemble, the S2S dataset, has been created with contributions from 11 centres to extend across the sub-seasonal to
seasonal range (up to day 60).
Seasonal range is greater at the Poles because of greater seasonal temperature range.
That is, other countries at the same latitude have seen a sharper shrinking of
the seasonal range than the UK has.
In fact, Elias and Matthews (2002) showed a much better relationship between modern beetle distributions and WMMT (r2 = 0.95) than CMMT (r2 = 0.80), suggesting that
the seasonal range of warming inferred from the beetle assemblage (ΔMAT = 10.0 to 14.8 °C) is probably biased low.