By Robert A. Gitzen, Joshua J. Millspaugh, Andrew B. Cooper, Daniel S. Licht
To supply invaluable and significant details, long term ecological courses have to enforce good and effective statistical methods for accumulating and interpreting info. This quantity offers rigorous counsel on quantitative concerns in tracking, with contributions from international specialists within the box. those specialists have wide event in educating basic and complex rules and techniques to normal source managers, scientists, and scholars. The chapters current a number instruments and methods, together with unique assurance of variance part estimation and quantitative choice between replacement designs; spatially balanced sampling; sampling ideas integrating layout- and model-based methods; and complex analytical methods reminiscent of hierarchical and structural equation modelling. Making those instruments extra obtainable to ecologists and different tracking practitioners throughout quite a few disciplines, this can be a necessary source for any expert whose paintings bargains with ecological tracking. Supplementary instance software program code is accessible on-line at www.cambridge.org/9780521191548.
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Additional info for Design and Analysis of Long-term Ecological Monitoring Studies
In this section, we discuss selected specific indicators that may help monitoring practitioners assess whether their specific monitoring study is adequately addressing important quantitative issues. g. Elzinga et al. 2001, de Gruijter et al. 2006, McComb et al. 2010). Most of these indicators are recognized as important standard components of any monitoring protocol (Oakley et al. 2003); others should be. g. Chapters 8, 9) which should be addressed with a comprehensive, “whole-problem” approach (Chapter 2).
It may seem self-evident to many readers, yet many reviews suggest that inadequate attention to quantitative issues is one of the common causes for failure or ineffectiveness of monitoring programs (Noon 2003, Legg and Nagy 2006, Lindenmayer and Likens 2010a, and multiple other reviews). 6 Robert A. Gitzen and Joshua J. 2). The meaning of “useful and relevant” must be defined for each individual study in the process of specifying clear objectives. To be useful, information also needs to be timely, based on sufficiently accurate data and analyses, and able to stand up to objective peer scrutiny as well as agenda-driven criticisms.
Vegetation monitoring at Fort Union Trading Post National Historic Site in North Dakota/Montana, USA, uses spatially balanced sampling from a 133-ha sample frame; Symstad et al. 2011). This type of national-scale program with a local-scale focus broadly expands awareness of available methods, and pulls in many professional ecologists and statisticians to further develop and apply diverse design and analysis approaches. It also leads many managers and biologists to think about the importance and requirements of sound statistical design.
Design and Analysis of Long-term Ecological Monitoring Studies by Robert A. Gitzen, Joshua J. Millspaugh, Andrew B. Cooper, Daniel S. Licht