A consumer–resource system with source–sink populations and asymmetric dispersal

2020 ◽  
Vol 540 ◽  
pp. 123145
Author(s):  
Chengguan Tan ◽  
Yuanshi Wang ◽  
Hong Wu
Keyword(s):  
Asymmetric Dispersal ◽  
Source Sink ◽  
Resource System ◽  
Consumer Resource

MODELING TOXIC STRESS BY ATRAZINE IN A MARINE CONSUMER-RESOURCE SYSTEM

2013 ◽  
Vol 32 (5) ◽  
pp. 1088-1095 ◽  
Author(s):  
Lisette De Hoop ◽  
Marleen De Troch ◽  
A. Jan Hendriks ◽  
Frederik De Laender
Keyword(s):  
Toxic Stress ◽  
Resource System ◽  
Consumer Resource

Cannibalism in Size-Structured Systems

2013 ◽  
Author(s):  
André M. de Roos ◽  
Lennart Persson
Keyword(s):  
Population Dynamics ◽  
Population Level ◽  
Metabolic Rates ◽  
Intraspecific Interaction ◽  
Individual Level ◽  
Structured Systems ◽  
Level Model ◽  
Continuous Population ◽  
Resource System ◽  
Consumer Resource

The previous two chapters discussed how the size scaling of foraging and metabolic rates affected the dynamics of consumer-resource systems. Using different modeling approaches, it was shown that stage-dependent competitive ability was the main predictor of population dynamics; that is, it largely set the conditions for different types of cycles to occur. This chapter adds another intraspecific interaction on top of the consumer-resource system, namely, cannibalism. It uses a discrete-continuous population-level model based on individual-level net-production energetics to investigate the effects of cannibalism. The focus will be on the effects of cannibalism on population dynamics related to four processes that have been discussed in the literature regarding cannibalism: effects on mortality, competition, energy gain, and the size dependence of interactions.

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