>Raoiella indica or red palm mite, is reported for the first time from Mexico City. It has now been found at 2244 masl which highest elevation documented species. Most of specimens were collected underside Canarian palms (Phoenix canariensis Chabaud) fronds, however it registered on upper side as well. Some also robellini roebelenii O'Brien).

Two proteins which have carbonate dehydratase (carbonic anhydrase, EC 4.2.1.1) activity were shown to be in the chloroplasts and in the cytosol of leaves of Brassica chinensis, Spinacia oleracea, and in variegated leaves of Tradescantia albiflora and Hedera canariensis. The chloroplastic enzyme is smaller than the one in the cytosol, as it runs farther on gradient polyacrylamide gels. It was se...

The species of Plutothrix Förster, 1856 are reviewed. gribanovi , sp. nov. is described from Russia, P. longigaster and zerovae Finland Russia. male canariensis Hedqvist, 1974 for the first time. transdanuviana (Erdös, 1946), syn. synonymized under Seladerma antennatum (Walker, 1833). following new records reported: nudicoxa Graham, 1993 perelegans Finland, obtusiclava zhangyieensis Yang, 1996 ...

BACKGROUND AND AIMS It is widely accepted that hydraulic failure due to xylem embolism is a key factor contributing to drought-induced mortality in trees. In the present study, an attempt is made to disentangle phenotypic plasticity from genetic variation in hydraulic traits across the entire distribution area of a tree species to detect adaptation to local environments. METHODS A series of t...

Mast-seeding species exhibit not only a large inter-annual variability in seed production but also considerable variability among individuals within the same year. However, very little is known about the causes and consequences for population dynamics of this potentially large between-individual variability. Here, we quantified seed production over ten consecutive years in two Mediterranean oak...