Margareta Rahayuningsih*, Firman Heru Kurniawan, and Nugroho Edi Kartijono

Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang. Jl. Sekaran Raya, Semarang 50229, Indonesia. *E-mail: etak_sigid@mail.unnes.ac.id

Ficus plays an essential role in the forest ecosystem and can be used as an indicator of success in the local environment. Its lateral rooting system binds with soil, thereby maintaining soil stability. The fig fruit of Ficus is essential food for frugivores. This study aims to determine the species richness and potential as frugivorous feed, focusing on Gentong Hill, Mount Ungaran. Mount Ungaran is a forest ecosystem with a variety of flora and fauna, including various species of Ficus, and was selected as a research location due to the habitat it provides for animals and plants. This research was conducted between January and May 2018. Data was selectively sampled based on Ficus accessibility and location. Its feed potential was determined using scoring based on fruit dimensions and colour. The research showed 24 species of Ficus in six sub-genera. According to our scoring results, these species were divided into four categories based on their frugivorous feed potential: high potential (4 Ficus species), potential (11), and less potential (9). This finding implies that Gentong Hill plays an important role in providing food for frugivores, and its maintenance is urgently necessary.

Denis E. Rumyantsev*, Leonid V. Stonozhenko, Ekaterina V. Naidenova, and Anna A. Sirotova
 

Mytishchi branch of Bauman Moscow State Technical University (National Research University), 1st Institutskaya Str., 141005 Mytischi, Moscow region, Russia. *E-mail: dendro15@list.ru

The article considers the issue of establishment and formation of new plantations in forest areas, passing continuous sanitary logging. The evaluation of the reaction of European spruce in stands of various species composition to the different climatic factors impact by analyzing dendroclimatic information has been carried out. It was found out that the least meteosensitivity of spruce is observed in lime stands. Predicting the conditions of Norway spruce trees (Picea abies (L.) Karst.) and spruce stands in general after catastrophic drought of 2010 followed by eight-toothed bark beetle (Ips typographus L.) invasion is of immediate interest now. On the practical side optimization of stand composition according to the reaction to climatic factors is advantageous.