Abstract. Out of 1150 Mha (million hectares) forest designated primarily for production purposes in 2020, plantations accounted 11 % (131 Mha) this area and fulfilled more than 33 the global industrial roundwood demand. However, adding additional timber to meet increasing demand intensifies competition scarce land resources between different uses such as food, feed, livestock production. Despit...

single roofed, indicating that the specimen was an immature. The skull and wing are now in the collection at Humboldt State College. This record is additional support for the assumption made by Cogswell (Condor, 54, 1952:117) that the northward movements of wandering vagrants of this species in the fall may be fairly commonplace, at least along the Pacific coast.--Row E. MALL, Humboldt State Co...

Brood parasitism in birds is one of the best examples of coevolutionary interactions in vertebrates. Coevolution between hosts and parasites is assumed to occur because the parasite imposes strong selection pressures on its hosts, reducing their fitness and thereby favouring counter-adaptations (e.g. egg rejection) which, in turn, select for parasite resistance (e.g. egg mimicry). Great spotted...