also includes our lands and waters. Remove one part from the environment and damage will be done. For example, after the last wolves were killed in Yellowstone Park in 1926, problems began to emerge. During the 70 years before wolves were reintroduced to Yellowstone Park there were many problems with the rise in deer population, conditions of the park were impaired by erosionding land and eradicating all kind of greenery. In 1995, the reintroduction of the wolves fixed the problems. The natural situation was restoredadvanced, new species appeared and the deer population was got under the control. Therefore, all animals are important to our environment and if one of the species goesis going to extinct, then the whole natural ecosystem will be disheveled. It will affect humans as well because we are a part of wildlife. Animals and plants benefit us just by being there. These
Populatsioon – ehk asurkond on kõik organismid, kes kuuluvad samasse liiki ning kes kasutavad elu-, sigimis- ja toitumispaigana ühist geograafilist piirkonda ehk areaali. Kooslus - on ühesuguste keskkonnatingimustega alal elavate organismide kogum, mis on sarnase liigilise koosseisu ja struktuuriga ning suhtelise stabiilsusega. Elupaik - mingi liigi (populatsiooni) eluks vajalikke biootilisi ja abiootilisi tingimusi rahuldav paik (ka biotoop) taasasustamine (reintroduction) – liigi taasasustamine tema kunagisele asualale, kust liik on praeguseks välja surnud (kasutatakse tehistingimustes paljundatud või loodusest kogutud isendeid) tugiasustamine (reinforcement, augmentation) – olemasolevasse populatsiooni täiendavate isendite lahtilaskmine populatsiooni arvukuse ja geneetilise mitmekesisuse suurendamiseks uusasustamine ehk liigikaitseline introdutseerimine (conservation introduction) –
muu rikutud või hävinud ökosüsteemi komponendi loodusliku või jätkusuutliku seisundi taastamine. Ökoloogilise taastamise võimalusi, vahendeid ja tagajärgi uurib taastamisökoloogia. Taastamisökoloogia - ökoloogia haru, mis tegeleb populatsioonide, koosluste ja ökosüsteemide ning nende looduslikkuse ja iseregulatsioonivõime taastamise võimaluste ja vahendite uurimisega. Taas-, tugi- ja uusasustamine Taasasustamine (reintroduction) liigi taasasustamine tema kunagisele asualale, kust liik on praeguseks välja surnud (kasutatakse tehistingimustes paljundatud või loodusest kogutud isendeid). Tugiasustamine (reinforcement, augmentation) olemasolevasse populatsiooni täiendavate isendite lahtilaskmine populatsiooni arvukuse ja geneetilise mitmekesisuse suurendamiseks. Uusasustamine ehk liigikaitseline introdutseerimine (conservation introduction)
ugliest, while the cantilever was generally regarded as a type, especially those of American origin, whose profile was unsightly despite their record lengths. The largest cantilever in Europe was Saligney's Danube Bridge near Czernavoda (Romania), with a span of 623ft (190m). Another great cantilever is the Howrah Bridge over the Hooghly River at Calcutta (India), with a span of 1500ft (457m). Reintroduction of masonry and concrete Concrete is an ancient material. It was first discovered and used by the Romans in their aqueducts and temples, to be sporadically rediscovered throughout time by engineers who used it in its mass- poured form. The discovery of natural cement in 1796, on the Isle of Sheppey in the Thames Estuary (UK), renewed interest in the material, but the age of concrete began its most vigorous development with Joseph Aspdin's invention in 1824 of artificial Portland cement
[8] 40. routeways/pathways allowing movement of (insects); ref to connectivity/AW; ref to sites of refuge/habitat; max 2 [2] 41. pest remains/not totally eradicated; slow to work/AW; labour intensive/AW; reintroduction often needed; predator may eat crop; risk of migration; risk to other organisms/mutation/predation of other species; max 2 [2] 42. pollination; maintain biodiversity; benefits to food chain/food for other organisms; max 2
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