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Common/spear rot crown disease in oil palm (Elaeis guineensis Jacq.): anatomy of the affected tissue
Bent rachises in palms with symptoms of “crown disease” had fibres with thinner and less lignified cell walls than normal cells. Also, vascular bundles were less numerous, thinner, and had fewer fibres than healthy tissue. ...
The roles of history and habitat area in the distribution and composition of avian species assemblages in the highlands of Costa Rica
Bird species assemblages in isolated Neotropical highland mountains have been moulded by the drastic climatic changes that occurred in late Pleistocene. Palynological evidence indicates that after the Pleistocene the ...