The ecological research in the Dead Sea and Arava Science Center encompasses several systems, as well as many species of vegetation and animals. One of the main ecological topics is the demographic changes imposed upon the acacia populations along the Arava Rift, as well as across the Negev desert. During the last few decades, several observations revealed high mortality rates of acacias, and at the same time, low recruitment rates of young trees. Researchers of the Science Center deal with different aspects of that topic, including field surveys for monitoring the state of the acacia populations; studying the effects of precipitations and floods on mortality and recruitment; examining the effects of ungulate species on germination and survival of young trees, investigating the effects of insects on seeds vitality; etc. Additional studies encompass several hydrological and geological topics, which facilitate in achieving complementary information on the acacia populations. In the northern edge of the Arava Valley and along the Dead Sea, researchers of the Science Center study the characteristics of several native medicinal plants species, as well as the potential of their commercialization. The ecological research in the Science Center has been conducted in close collaboration with researchers from several Jordanian institutes.