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Journal : Biocelebes

Konsekuensi Biologis Pemanasan Global dengan Penekanan Terhadap Interaksi Serangga-Tumbuhan Shahabuddin Shahabuddin
Biocelebes Vol. 3 No. 2 (2009)
Publisher : Biology Department, Mathematics and natural science, Tadulako University

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Abstract

Global warming that caused by increasing of C02 in atmosphere effects many aspect on organism lives, including insects-plants interactions. The effect of CO2 increased will more complex when interact with another environment factors such as Nitrogen increased and atmosphere temperature increased. Global warming effects on physiology, phenology, distribution, adaptation, and interaction among species. Increasing of C02 gases in atmosphere potentially to rise attack of herbivory insects and effects on their natural enemy. Eventhough, the effect is very species spesific  and specific system on insects-plants interactions. It is needed  holistic understanding to build the strategy for herbivory insects controlled. In the other side, C02 increasing is a ecological issue that caused and effects to human life. It is need proactive attitude and communication to handle this problem together.
Dampak Perubahan Hutan Menjadi Kebun Kakao Terhadap Keanekaragaman Laba-Laba (Araneae) di Sulawesi Tengah Shahabuddin Shahabuddin; Abd. Wahid Abd. Wahid; Elijonnahdi Elijonnahdi
Biocelebes Vol. 5 No. 1 (2011)
Publisher : Biology Department, Mathematics and natural science, Tadulako University

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Abstract

This study aims to evaluate the effect of forest conversion to agriculture, especially cocoa plantation on spider diversity in Central Sulawesi. The experiment was conducted in the vicinity of the village of Bobo Palolo Subdistrict, Donggala in the margins of Lore Lindu National Park in Central Sulawesi. Spiders were collected on transects size of 50 mx 10 m at each study site using insect nets. The results showed that there are at least 17 species from 11 families of spiders recorded from natural forest, disturb forest, and cacao plantation. Changes in habitat type affect the diversity of spiders. Spider species diversity tends to decline due to habitat change from natural forest to cocoa plantations. However the forest with intermediate level of disturbance as well as a cacao plantation that maintains many types of shade trees has capability for supporting spiders diversity. Community structure of spiders at the cacao plantation are relatively similar to those in natural forests.