| Semliki forest virus | <virology> Enveloped virus of the alphavirus group of Togaviridae. First isolated from mosquitoes in the Semliki Forest in Uganda, not known to cause any illness. The synthesis and export of its three spike glycoproteins, via the endoplasmic reticulum and Golgi complex, have been used as a model for the synthesis and export of plasma membrane proteins. (18 Nov 1997) |
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| Kyasanur Forest disease virus | A group B arbovirus, in the family Flaviviridae, isolated from monkeys in India and capable of causing Kyasanur Forest disease in humans; the virus is spread by monkeys and birds having mild infections; the vectors are probably species of the tick Haemaphysalis. (05 Mar 2000) |
| commercial forest land | Forested land which is capable of producing new growth at a minimum rate of 20 cubic feet per acre/per year, excluding lands withdrawn from timber production by statute or administrative regulation. (05 Dec 1998) |
| conventional forest products | Any commercial roundwood product (boards, dimension lumber, pulp and paper products) except fuelwood. (05 Dec 1998) |
| kyasanur forest disease | Tick-borne flavivirus infection occurring in the kyasanur forest in india. (12 Dec 1998) |
| forest | 1. <ecology> An extensive wood; a large tract of land covered with trees; in the United States, a wood of native growth, or a tract of woodland which has never been cultivated. 2. A large extent or precinct of country, generally waste and woody, belonging to the sovereign, set apart for the keeping of game for his use, not inclosed, but distinguished by certain limits, and protected by certain laws, courts, and officers of its own. 3. <zoology> One of numerous species of blood-sucking flies, of the family Tabanidae, which attack both men and beasts. See Horse fly. A fly of the genus Hippobosca, especially. H. Equina. See Horse tick. Forest glade, a grassy space in a forest. Forest laws, laws for the protection of game, preservation of timber, etc, in forests. Forest tree, a tree of the forest, especially a timber tree, as distinguished from a fruit tree. Origin: OF. Forest, F. Foret, LL. Forestis, also, forestus, forestum, foresta, prop, open ground reserved for the chase, fr. L. Foris, foras, out of doors. (04 Apr 1998) |
| forest health | A condition of ecosystem sustainability and attainment of management objectives for a given forest area. Usually considered to include green trees, snags, resilient stands growing at a moderate rate, and endemic levels of insects and disease. Natural processes still function or are duplicated through management intervention. (05 Dec 1998) |
| forest plan | The document that sets goals, objectives, desired future condition, standards and guidelines, and overall programmatic direction for a National Forest. Required by the National Forest Management act of 1976. (05 Dec 1998) |
| forest residue | Material not harvested or removed from logging sites in commercial hardwood and softwood stands as well as material resulting from forest management operations such as precommercial thinnings and removal of dead and dying trees. (05 Dec 1998) |
| forest yaws | A form of New World cutaneous leishmaniasis caused by Leishmania braziliensis guyanensis in the Amazon delta; a small proportion of cases are said to metastasize to the nasal mucosa with espundia-like involvement. Synonym: bosch yaws, bush yaws, forest yaws. (05 Mar 2000) |
| late-successional forest | Forest seral stages which include mature and old- growth age classes. (05 Dec 1998) |
| arthritis-encephalitis virus, caprine | A species of lentivirus, subgenus ovine-caprine lentiviruses (lentiviruses, ovine-caprine), closely related to visna-maedi virus and causing acute encephalomyelitis, chronic arthritis, pneumonia, mastitis, and glomerulonephritis in goats. It is transmitted mainly in the colostrum and milk. (12 Dec 1998) |
| Central European tick-borne encephalitis virus | One of the virus's of the tick-borne encephalitis complex of group B arboviruses (genus Flavivirus); the causative agent of tick-borne encephalitis (Central European subtype). (05 Mar 2000) |
| Russian autumn encephalitis virus | A virus of the genus Flavivirus (group B arbovirus) occurring particularly in Japan but probably widespread throughout Southeast Asia; the virus is normally present in humans, especially in children, as an inapparent infection, but may cause febrile response and sometimes encephalitis; it may cause encephalitis in horses and abortion in pigs; wild birds are probably the natural hosts and culicine mosquitoes the vectors. Synonym: Russian autumn encephalitis virus. (05 Mar 2000) |
| Russian spring-summer encephalitis virus | An arbovirus of the genus Flavivirus that occurs in Central Europe and the USSR in two subtypes, causing two forms of encephalitis in humans: tick-borne encephalitis (Central European subtype) and tick-borne encephalitis (Eastern subtype); the vectors are ticks of the genus Ixodes. Synonym: Russian spring-summer encephalitis virus, tick-borne virus. (05 Mar 2000) |