Ecology. Stability of ecosystems.


Ebook "STABILITY OF TERRESTRIAL ECOSYSTEMS TO PLANT PESTS: AN AXIOMATIC APPROACH"
Gleb I.Vasechko,
Cand.Sc.(Biology)

© Gleb Vasechko, 2005 All rights reserved.
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Created 20.03.2005
Last modification 15.06.2021

"This book is a synthesis of ideas as to stability of ecosystems..."
Gleb Vasechko.

PART I. A LIST OF THE AXIOMS. Continuation.

AXIOM 9. POPULATION DYNAMICS OF PLANT PESTS AND ECOSYSTEM STABILITY TO PLANT PESTS

"Population dynamics is the science which explains how and why the abundance of living things fluctuates" (Stark 1977) (cited in R.W. Campbell, 1981, p. 65).

The concept of ESPPs is able to bring contribution in answering on the questions "why" and "how" the abundance of PPs fluctuates in certain circumstances. As a whole, this was done in preceding discourse. In the Axiom 8, it was shown driving forces behind growth of density of herbivores and affection by phytopathogens. FDESPPs are the forces, which realize the growth. As to the causes of decrease of the density and the affection, they are considered in many places of this discourse. Now, in the Axiom 9, it will be done systematization of the knowledge based of the classification of FDESPPs. It will be offered patterns of population dynamics of PPs (PPDPPs). Every PPDPPs describes the following phenomena:

9.1. A category of FDESPPs or a complex of them, which determine specificity of a given PPDPPs.

9.2. Composition of CESPPs, which failed due to effects of a category of FDESPPs or a complex of them.

9.3. Typical taxa of PPs, which density or affection undergo increasing due to effects of a category of FDESPPs or a complex of them.

9.4. Character of the outbreak phase of population dynamics of PPs (its duration and value of the increase).

9.5. Composition of CESPPs providing a decline of outbreaks and epiphytoties (on the levels ESPPs 3.2. (A.3.2.) "Lag control" or 3.3. (A.3.3.) "Late control.")

9.6. Factors determining of recurrence of outbreaks or epiphytoties.

9.7. Participation of PPs species (taxa) in outbreaks (epiphytoties).

9.8. Specific measures of suppression of PPs.

AXIOM 8. FACTORS OF DISTURBANCE OF ECOSYSTEM STABILITY TO PLANT PESTS AND THEIR EFFECTS. In the same window    AXIOM 10. ECOSYSTEM STABILITY TO PLANT PESTS AS A SPECIAL SCIENTIFIC PROVINCE, ITS OBJECTIVES AND MANAGEMENT IMPLICATIONS: A NEW PROVINCE AND NEW WAYS IN POLITICS. In the same window