JournalTOCs

International Journal of Ecological Economics and Statistics
Number of Followers: 4

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ISSN (Print) 0973-1385
Published by CESER Publications

[11 journals]

Calibration and variogram analysis in a small forest area
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  Authors: Ivan Sciascia1
  Pages: 1 - 13
  Abstract: The combined use of field measurements, statistical analysis and remote sensing measurements allows understanding the complexity of ecological forest landscapes. In this work we analyzed data from a small forest landscape to estimate forest tree diameter, a variable often used in ecological research literature. Based on 40 forest inventory plots field measured in one Alpine watershed, we compared a calibration model with remote sensing auxiliary data to a spatial dependence regression kriging model which use only field measured interdependence. The use of the comparison of statistical techniques proposed is innovative for the study of small forests.
  PubDate: 2024-04-20
  Issue No: Vol. 45 (2024)
Stability Analysis of prey-Predator Model with Constant Harvesting of Prey
Species.
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  Authors: Paparao. A. V
  Pages: 14 - 22
  Abstract: We studied the stability analysis of prey-predator model with constant harvesting of prey-species. The basic mathematical model is described by the couple of differential equation. The Holling type function -II response is included in the prey-predator interaction. The well posed ness of the model is explored. The bounded ness property and persistence is also addressed. The local stability analysis is studied at all equilibrium points. The global dynamics is also studied and shown that the system is asymptotically stable. Further numerical simulation is executed in support of stability analysis.
  PubDate: 2024-03-20
  Issue No: Vol. 45 (2024)
Dynamics of cannibalism in the predator in a prey refuge functional
response dependent predator-prey model
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  Authors: Md Sarijul Islam, Md. Sabiar Rahman
  Pages: 22 - 44
  Abstract: The mathematical model for predator-prey interactions discussed in this article includes cannibalism in the predator. Cannibalism is pervasive in natural individuals which reflects the potential to modify their functional relationship for interacting with resources. We have considered here prey refuge, which depends on the contacts between both the species. Predator consumes the prey according to Holling type II functional response. Feasibility as well as stability of the points of equilibria and the existence of Hopf bifurcation along with its direction at interior equilibrium have been duly accomplished and in this regard suitable graphical representation with proper discussions are executed to substantiate the system under consideration.
  PubDate: 2024-03-20
  Issue No: Vol. 45 (2024)

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