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The strength of interactions is crucial to the stability of ecological networks. However, the patterns of interaction strengths in mathematical models of ecosystems have not yet been based upon independent observations of balanced material fluxes. Here we analyse two Antarctic ecosystems for which the interaction strengths are obtained: (1) directly, from independently measured material fluxes, (2)...
This avifauna study was conducted at Taman Botani Negara Shah Alam, Selangor, Malaysia on the 17th-18th October 2009. A total of eighteen individuals of birds representing 13 species from 9 families were recorded. Birds were sample by utilizing standard mist nets (dimensions, 2.5 m × 9 m and 3 m × 14 m). The most abundance of species is Lanius tigrinus (Tiger Shrike) and the Laniidae is the most abundance...
The influences of different management operations on tree regeneration and understory vegetation were tested 20 years after thinning in larch plantations in the Loess Plateau of China. Five treatments were conducted: unthinned, uniform light, moderate, heavy thinning, and creation of gaps. Creating gaps noticeably enhanced tree regeneration and understory vegetation development. In contrast, the effect...
The ChEss project of the Census of Marine Life (2002–2010) helped foster internationally-coordinated studies worldwide focusing on exploration for, and characterization of new deep-sea chemosynthetic ecosystem sites. That work advanced our understanding of the nature of factors controlling the biogeography and biodiversity of these ecosystems in four geographic locations: the Atlantic Equatorial Belt,...
This paper exhibited the change process of the delta wetland and then discussed the factors that related to wetland degradation. Based on the implementation of wetland restoration, effects on wetland process were analyzed. Results showed that before restoration, wetland landscape tended to fragmentation and biodiversity decreased, while after restoration, wetland ecosystem was objected to develop...
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