Ograniczanie wyników

Czasopisma help
Autorzy help
Lata help
Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 178

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 9 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  gospodarowanie populacja
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 9 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
The natural range of the moose, Alces alces in Europe had been reduced during historical times and the species became extinct in western Europe. In Poland, being the edge of the species' natural range the moose population survived in the wild. After the Second World War, the moose was critically endangered in Poland. Fortunately, its number considerably increased, most probably due to immigration of large numbers of individuals from the former Soviet Union and the demographic expansion of autochthonous, relic population at the Biebrza valley. Starting for 1952 the species was strictly protected and in 1967, when population was about 600 individuals, the sustainable harvest (hunting) was established. Demographic expansion of moose populations continued through 60. and 70-ties of the XXth century and resulted in its maximum (ca 6200 individuals) in 1981. The moose was present at Polish lowlands and reached the German boundary. Unfortunately, overhunting that continued for over 20 years became a considerable threat to a species and their numbers were reduced by over 70%. Many populations in western and central Poland became extinct till 2001. The reduction was explained by demands of forest protection, as moose in Poland caused significant damages in young-growth forests. As the species became endangered, no hunting is allowed since 2001. This decision of the Ministry of Environment resulted in the recovery of moose populations and the species is now abundant, especially in eastern part of Poland. The future of the moose in Poland will depend on "The strategy for moose protection and management", being prepared by a team of scientists, National Forest Holding and Polish Hunting Association. This evidence based-management plans should help to maintain viable populations and lower the damages in young-growth forests as well as the risk of car accidents with moose.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 9 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.