Anthropogenic effect on forest landscape pattern and Cervidae habitats in northeastern China

摘要: Species abundance and habitat distribution are two important aspects of species conservation studies both affected by similar environmental factors. Forest resource inventory data in 2010 were used to evaluate the patterns for target Cervidae six typical forestry bureaus Yichun forest area Lesser Xing’an Mountains, northeastern China. A suitability index (HSI) model was based on elevation, slope, aspect, vegetation age tree. These five factors selected boosted regression tree (BRT) analysis from 14 variables collected during field surveys. Changes caused anthropogenic activities mainly involving settlement road also considered. The results identified 1780.49 km2 most-suitable 1770.70 unsuitable areas under natural conditions, covering 16.38% 16.29% entire study area, respectively. had been reduced 4.86% when human interference taken into account, whereas increased 11.3%, indicating that disturbance turned some potential habitats ones. Landscape metrics indicated average patch declined while density edge increased. This suggests as becomes fragmented its quality degraded activities, cervid populations will be threatened with extirpation. helped identify spatial extent influenced local population. As clearly avoid more attention should paid considering way intensity management fully possible