Wojciech K. NOWAKOWSKI, Pawel BORATYNSKI

An attempt to estimate the size and density of Dryomys nitedula population in the Bialowieza Forest

Bialowieza Ormanı'nın yaklaşık 58 000 hektarlık Polonya kısmındaki ağaç faresi populasyonunun büyüklük ve yoğunluğu hakkında mevcut kaynaklara dayanılarak bir hesaplama yapılmıştır. Hesaplanan populasyon büyüklüğü 7750 ile 40 170 birey arasında çıkmıştır. 18 856 adetlik birey sayısı büyük olasılıkla gerçek duruma en yakın olanıdır. Yukarıdaki hesapların güvenilir olduğu kabul edilirse bu bölgedeki populasyon yoğunluğu yaklaşık 3,3 birey/10 ha'dır (ekstrem değerler: 1,3 ve 6,9/10 ha'dır). Bu yoğunluk değerleri diğer araştırıcıların diğer bögelerden verdikleri değerler ile uyuşmaktadır.

Anahtar Kelimeler:

orman ekolojisi, populasyon, populasyon dinamiği, populasyon tahmini, Polonya

Bialowieza Ormanı Dryomys nitedula populasyonunun yoğunluk ve büyüklüğünün hesaplanmasına ait bir deneme

On the basis of available literature data an attempt was made to estimate size and density of the Forest Dormouse population in the Polish part of the Bialowieza Forest, covering ca 58 000 ha. The estimate of the population size falls between 7750 and 40 170 individuals. The number of 18 856 individuals is probably the closest to the real state. Considering the above calculations as reliable, the density ofpopulation in this area is ca 3.3 indiv./10 ha (the extreme results are: 1.3 and 6.9 indiv./10 ha). Such densities correspond to those given by other authors for other areas.

Keywords:

forest ecology, populations, population dynamics, population forecasts, Poland,

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