Evolution of Dispersal Rates in Metapopulation Models: Branching and Cyclic Dynamics in Phenotype Space

Evolution ◽  
1997 ◽  
Vol 51 (6) ◽  
pp. 1730 ◽  
Author(s):  
Michael Doebeli ◽  
Graeme D. Ruxton
Keyword(s):  
Evolution Of Dispersal ◽  
Phenotype Space ◽  
Cyclic Dynamics ◽  
Metapopulation Models

Metapopulation models predict the temporal response of two macrophytes to drought in a subtropical water reservoir

2017 ◽  
Vol 100 ◽  
pp. 1-7 ◽  
Author(s):  
Éder A. Gubiani ◽  
Sidinei M. Thomaz ◽  
Luis M. Bini ◽  
Pitágoras A. Piana
Keyword(s):  
Water Reservoir ◽  
Temporal Response ◽  
Subtropical Water ◽  
Metapopulation Models

scholarly journals Cyclic dynamics of a boreal southern red-backed vole population in northwestern Quebec

2015 ◽  
Vol 96 (3) ◽  
pp. 573-578 ◽  
Author(s):  
Dominique Fauteux ◽  
Marianne Cheveau ◽  
Louis Imbeau ◽  
Pierre Drapeau
Keyword(s):  
Vole Population ◽  
Cyclic Dynamics

Parent‐Offspring Conflict and the Evolution of Dispersal Distance

2010 ◽  
Vol 175 (1) ◽  
pp. 38-49 ◽  
Author(s):  
Jostein Starrfelt ◽  
Hanna Kokko
Keyword(s):  
Dispersal Distance ◽  
Evolution Of Dispersal

Interplay between Local Dynamics and Dispersal in Discrete-time Metapopulation Models

2002 ◽  
Vol 218 (3) ◽  
pp. 273-288 ◽  
Author(s):  
ABDUL-AZIZ YAKUBU ◽  
CARLOS CASTILLO-CHAVEZ
Keyword(s):  
Discrete Time ◽  
Local Dynamics ◽  
Metapopulation Models

scholarly journals Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird

2020 ◽  
Author(s):  
Diana E. Bowler ◽  
Mikkel A. J. Kvasnes ◽  
Hans C. Pedersen ◽  
Brett K. Sandercock ◽  
Erlend B. Nilsen
Keyword(s):  
Population Dynamics ◽  
Species Interactions ◽  
Climatic Conditions ◽  
Boreal Ecosystems ◽  
Prey Switching ◽  
Predator Prey ◽  
Classic Theory ◽  
Species Population ◽  
Cyclic Dynamics ◽  
Ground Nesting

AbstractAccording to classic theory, species’ population dynamics and distributions are less influenced by species interactions under harsh climatic conditions compared to under more benign climatic conditions. In alpine and boreal ecosystems in Fennoscandia, the cyclic dynamics of rodents strongly affect many other species, including ground-nesting birds such as ptarmigan. According to the ‘alternative prey hypothesis’ (APH), the densities of ground-nesting birds and rodents are positively associated due to predator-prey dynamics and prey-switching. However, it remains unclear how the strength of these predator-mediated interactions change along a climatic harshness gradient in comparison with the effects of climatic variation. We built a hierarchical Bayesian model to estimate the sensitivity of ptarmigan populations to interannual variation in climate and rodent occurrence across Norway during 2007–2017. Ptarmigan abundance was positively linked with rodent occurrence, consistent with the APH. Moreover, we found that rodent dynamics had stronger effects on ptarmigan in colder regions. Our study highlights how species interactions play an important role for the population dynamics of species at higher latitudes and suggests that they can become even more important in the most climatically harsh regions.

scholarly journals CYCLIC DYNAMICS OF INFLATION: EMPIRICAL ANALYSIS

2017 ◽  
Vol 5 ◽  
pp. 396-400
Author(s):  
Alexander Protasov ◽  
Tatyana Kotcofana ◽  
Polina Stazhkova
Keyword(s):  
Nonlinear Dynamics ◽  
Twentieth Century ◽  
Spectral Analysis ◽  
Empirical Analysis ◽  
Price Levels ◽  
The World ◽  
Cyclic Dynamics ◽  
Dynamic Series

The paper is dedicated to the study of nonlinear dynamics of inflation. We hypothesize that in the second half of the twentieth century, inflation cycles replaced the pre-existing inflation-deflation cycles. This hypothesis is based on the study of data about price levels in various countries of the world for the period of 1950 to 2016. The paper shows some results of a spectral analysis that was applied to the dynamic series of prices. The results of the spectral analysis confirmed the hypothesis about the existence of inflation cycles.

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