Estimation of key parameters for weed population dynamics models: Base temperature and base water potential for germination

2010 ◽  
Vol 32 (2) ◽  
pp. 162-168 ◽  
Author(s):  
A. Gardarin ◽  
J.-P. Guillemin ◽  
N.M. Munier-Jolain ◽  
N. Colbach
Keyword(s):  
Population Dynamics ◽  
Water Potential ◽  
Base Temperature ◽  
Weed Population ◽  
Weed Population Dynamics ◽  
Population Dynamics Models ◽  
Dynamics Models ◽  
Base Water Potential

scholarly journals Defining Integrated Weed Management: A Novel Conceptual Framework for Models

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 747
Author(s):  
Jonathan Storkey ◽  
Joseph Helps ◽  
Richard Hull ◽  
Alice E. Milne ◽  
Helen Metcalfe
Keyword(s):  
Population Dynamics ◽  
Conceptual Framework ◽  
Herbicide Resistance ◽  
Weed Management ◽  
Integrated Weed Management ◽  
Management Options ◽  
Weed Population ◽  
Weed Population Dynamics ◽  
Population Dynamics Models ◽  
Dynamics Models

Weed population dynamics models are an important tool for predicting the outcome of alternative Integrated Weed Management (IWM) scenarios. The growing problem of herbicide resistance has increased the urgency for these tools in the design of sustainable IWM solutions. We developed a conceptual framework for defining IWM as a standardised input template to allow output from different models to be compared and to design IWM scenarios. The framework could also be used as a quantitative metric to determine whether more diverse systems are more sustainable and less vulnerable to herbicide resistance using empirical data. Using the logic of object-oriented programming, we defined four classes of weed management options based on the stage in the weed life cycle that they impact and processes that mediate their effects. Objects in the same class share a common set of properties that determine their behaviour in weed population dynamics models. Any weed control “event” in a system is associated with an object, meaning alternative management scenarios can be built by systematically adding events to a model either to compare existing systems or design novel approaches. Our framework is designed to be generic, allowing IWM systems from different cropping systems and countries to be compared.

Weed Demography and Population Dynamics: Implications for Threshold Management

1992 ◽  
Vol 6 (1) ◽  
pp. 184-190 ◽  
Author(s):  
Nicholas Jordan
Keyword(s):  
Population Dynamics ◽  
Seed Dispersal ◽  
Weed Management ◽  
Threshold Value ◽  
Soil Factors ◽  
Factors Affecting ◽  
Weed Population Dynamics ◽  
Population Dynamics Models ◽  
Dynamics Models ◽  
Optimum Threshold

Threshold weed management methods have recently been elaborated to consider effects of threshold management on weed population dynamics. Such economic optimum thresholds are calculated using population-dynamics models which require detailed information about weed demography, including seed production (as affected by events between germination and seed dispersal), seed dispersal, and seed survival and movement in soil. Factors affecting any of these aspects of demography appear likely to modulate the growth rate of a sub-threshold population and therefore to influence the economic optimum threshold value. To test this conjecture and evaluate weed threshold management, including associated risk, improved understanding is particularly needed of weed seed dispersal, seedbank processes, and unpredictable demographic variation.

Nonlinear Population Dynamics: Models, Experiments and Data

1998 ◽  
Vol 194 (1) ◽  
pp. 1-9 ◽  
Author(s):  
J.M. Cushing ◽  
R.F. Costantino ◽  
Brian Dennis ◽  
R.A. Desharnais ◽  
Shandelle M. Henson
Keyword(s):  
Population Dynamics ◽  
Population Dynamics Models ◽  
Dynamics Models

scholarly journals Challenging population dynamics models with new data: how accurate were our inferences?

2020 ◽  
Vol 27 (1) ◽  
pp. 008-016
Author(s):  
Verónica C. Andreo ◽  
Mauricio Lima ◽  
Jaime J. Polop ◽  
M. Cecilia Provensal
Keyword(s):  
Population Dynamics ◽  
Population Dynamics Models ◽  
Dynamics Models

Age-structured & Size-structured Population Dynamics Models

2009 ◽  
Author(s):  
Mohamed O. El-Doma ◽  
Theodore E. Simos ◽  
George Psihoyios ◽  
Ch. Tsitouras
Keyword(s):  
Population Dynamics ◽  
Structured Population ◽  
Structured Population Dynamics ◽  
Age Structured ◽  
Population Dynamics Models ◽  
Dynamics Models

Integrated population models: powerful methods to embed individual processes in population dynamics models

Ecology ◽  
2019 ◽  
pp. e02715 ◽  
Author(s):  
Floriane Plard ◽  
Rémi Fay ◽  
Marc Kéry ◽  
Aurélie Cohas ◽  
Michael Schaub
Keyword(s):  
Population Dynamics ◽  
Population Models ◽  
Population Dynamics Models ◽  
Dynamics Models

scholarly journals Predicting coral community recovery using multi-species population dynamics models

2018 ◽  
Vol 21 (12) ◽  
pp. 1790-1799 ◽  
Author(s):  
Mohsen Kayal ◽  
Hunter S. Lenihan ◽  
Andrew J. Brooks ◽  
Sally J. Holbrook ◽  
Russell J. Schmitt ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Coral Community ◽  
Community Recovery ◽  
Species Population ◽  
Population Dynamics Models ◽  
Dynamics Models
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