CONTENTS I. Upper bounds for control time and energy cost 2 A. Preliminaries 2 B. Estimate of control time 2 C. Estimate of control energy cost 4 II. Controlling food-web networks: Data and analyses 6 III. Eigenvalue distributions of ecological networks 6 A. Wigner semicircle law 7 B. Eigenvalue distributions of ecological networks 7 IV. Flexibility of control 9 V. Hindmarsh-Rose neuronal model...

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the “driving force - pressure - state - impact – response” modeling framework isadopted to consider the formation mechanisms of environmental risks and the requirements ofecological environment protection. moreover, a systematical index system and evaluation model forthe measurement of the coastal ecological security level is put forward in this paper to assess thestate of coastal ecological en...

A Special Ecological Areas approach to alien plant management was adopted at Hawai`i Volcanoes National Park in 1985. The approach involves control of widespread, disruptive alien plant species in Special Ecological Areas, which are intensive management and research units in the Park. Special Ecological Areas management developed from these perceptions: 1) unmanaged alien species were affecting...