Ecological migration policy has been proposed and implemented as a means for depopulating ecological restoration areas in the arid Northwest China. Migration intention is critical to the effectiveness of ecological migration policy. However, studies on migration intention in relation to ecological migration policy in China remain scant. Thus this paper aims to investigate the rural residents’ m...

The articles included in this special section focus on the ecological and economic interactions of woodland use in Western Zimbabwe. One of the aims was to investigate the use of modelling to achieve integration among disciplines. The integrated model draws on the models in the different papers comprising the special section. The model has five ecological sectors, five sectors covering woodland...

N. R ü ger ([email protected]) and A. Huth, UFZ, Helmholtz Centre for Environmental Research – UFZ, Dept of Ecological Modelling, Permoserstr. 15, DE – 04318 Leipzig, Germany. Present address for NR: AG Spezielle Botanik und Funktionelle Biodiversit ä t, Univ. Leipzig, Johannisallee 21-23, DE – 04103 Leipzig, Germany. – S. P. Hubbell, Dept Ecology and Evolutionary Biology, Univ. of Ca...

The classical view of ecological systems has been one that assumes a state of equilibrium and stability; this is encapsulated in the ‘balance of nature’ paradigm. Over the last 30 years ecologists and biogeographers have rejected the view that ecological systems are inherently stable or at some sort of equilibrium. Instead a nonequilibrium view, emphasizing the role of chance events such as dis...

This paper describes Work Domain Analysis (WDA) applied to the domain of automated midair collision detection and avoidance as a first step in the design of improved ecological interfaces for automated traffic alerting displays. Three abstraction hierarchies (AH) modelling the aircraft, collision environment, and a traffic alerting system are presented, and the challenges of adapting the AH to ...

Ecologists collect and evaluate data from all possible data sources, sources of objective (mostly quantitative) data, like measurements and simulation results and sources of subjective (often only imprecise qualitative) information, like subjective estimations obtained from an expert. Not all ecological parameters are measurable, for example, the number and biomass of fi sh in a particular lake...

Ecological data can be difficult to collect, and as a result, some important temporal ecological datasets contain irregularly sampled data. Since many temporal modelling techniques require regularly spaced data, one common approach is to linearly interpolate the data, and build a model from the interpolated data. However this process introduces an unquantified risk that the data is overfitted t...