Patch dynamics

Research has previously shown that bacteria are not uniformly distributed in soil, reflecting soil structure and available nutrients (Richaume et al., 1993). The distribution of microorganisms throughout the soil can also be considered from the applied ecological perspective of patch dynamics, where patch formation is a reflection of intrinsic and extrinsic forces (Rao et al., 1986). The same authors also showed spatial variability in the degradation of pesticides applied to a soil system. 

Mediterranean, temperate, boreal, and polar ecosystems. His interests in forensic taphonomy arose from a research activity in organic nutrient patch dynamics in soils, the principles of which he has applied to forensic science. Dr. Tibbett is currently director of the Centre for Land Rehabilitation at the University of Western Australia. 

Pringle, C. M., and a. s. others. 1988. Patch dynamics in lotic ecosystems The stream as a mosaic. Journal of the North American Benthological Society 7 503-524. 

Pickett STA and White PS (1985) The Ecology of Natural Disturbance and Patch Dynamics. New York Academic Press. 

Combining Scale and Ecological Dynamics The Hierarchical Patch Dynamic Paradigm... 

The hierarchical patch dynamic paradigm (HPDP) meets the above requirements (Wu and Loucks 1995, Wu and David 2002). It is a model for describing at a fundamental level the interactions and dynamics of ecological systems at landscape and regional scales. The HPDP inherently incorporates and predicts a variety of temporal and spatial scales, heterogeneity, and a wide range of dynamics. The basic tenets of HPDP are listed in Table 2.1. This framework is an alternative to models of ecological systems that incorporate a balance of nature, inherent stability, or multiple equilibriums. 

Wu, J. and O.L. Loucks. 1995. From balance of nature to hierarchical patch dynamics A paradigm shift in ecology. Q. Rev. Biol. 70 439-466. 

Barnes, P. W. and Archer, S. R. (1996). Influence of an overstorey tree iProsopis ylandulosa) on associated shrubs in a savanna parkland implications for patch dynamics. Oecologia 105,493-500. 

The technique used to study dewetting dynamics on materials consists of making a flat, smooth elastomer surface. A hquid puddle is deposited within a 50-mm-diameter ring of 0.1-mm-thick plasticized adhesive paper adhering to the substrate. The adhesive paper acts as a spacer. A microscope slide is drawn over the liquid to obtain a liquid film of ca. 0.1-mm thickness. At this thickness, the liquid film is unstable, being much less than the equilibrium value, of ca. 1.5 mm calculated from Eq. (29). Nucleation of dry patches... 

SHERLOCK, R.R. and GOH, K.M. (1984). Dynamics of ammonia volatilisation from simulated urine patches and aqueous urea applied to pasture. I. Field experiments. Fertilizer Research 5,181-196. 

PERMEABILITY PERMEABILITY CONSTANT MEMBRANE POTENTIAL ACTION POTENTIAL DEPOLARIZATION GOLDMAN EQUATION NERNST EQUATION RESTING POTENTIAL THRESHOLD POTENTIAL PATCH-CLAMP TECHNIQUE Membrane protein dynamics,... 

Figure 6 Illustration of the spatial partitioning in the ParTAD method, (a) Lattice and sublattice (SL) partitioning in the SL method on which ParTAD is built. Patches are indicated by numbers, subpatches by letters, (b) Setup for TAD dynamics on one subpatch. Reprinted, with permission, from ref. 34. Copyright 2007 by the American Physical Society, http // link.aps.org/doi/10.1103/PhysRevB.71.125432...

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