Results 91 to 100 of about 452,511 (216)

Single-species metapopulation dynamics : A structured model

open access: yes, 1992
We describe and analyse a general metapopulation model, which consists of a model of local dynamics within a habitat patch, and balance equations for dispersing individuals and the metapopulation.
Hanski, Ilkka,, Gyllenberg, Mats,
core   +1 more source

A note on fractional-type models of population dynamics

open access: yesMathematical Modelling and Analysis
The fractional exponential function is considered. General expansions in fractional powers are used to solve fractional population dynamics problems. Laguerretype exponentials are also considered, and an application to Laguerre-type fractional logistic ...
Diego Caratelli, Paolo Emilio Ricci
doaj   +1 more source

Individual differences, density dependence and offspring birth traits in a population of red deer [PDF]

open access: yes, 2008
Variation between individuals is an essential component of natural selection and evolutionary change, but it is only recently that the consequences of persistent differences between individuals on population dynamics have been considered.
Clutton-Brock, TH   +8 more
core   +1 more source

Large Population Limit of Interacting Population Dynamics via Generalized Gradient Structures

open access: yes
This chapter focuses on the derivation of a doubly nonlocal Fisher-KPP model, which is a macroscopic nonlocal evolution equation describing population dynamics in the large population limit. The derivation starts from a microscopic individual-based model described as a stochastic process on the space of atomic measures with jump rates that satisfy ...
Hraivoronska, Anastasiia   +2 more
openaire   +4 more sources

A critical review of the literature on population modelling

open access: yes, 2012
Final Report to the Joint Industry Project of the International Association of Oil & Gas Producers on contract JIP22 07_20The 2005 report of the National Research Council’s ‘Committee on Characterizing Biologically Significant Marine Mammal Behavior ...
New, Leslie Frances   +4 more
core  

The frankincense tree of Ethiopia : ecology, productivity and population dynamics

open access: yes, 2011
Keywords: Boswellian papyrifera, Frankincense tree, matrix model, population dynamics, population bottleneck, tapping. Combretum – Terminalia woodlands and Acacia – Commiphora woodlands are the two dominant vegetation types that cover large parts of ...
Eshete Wassie, A.
core  

Replicated point processes with application to population dynamics models

open access: yes, 2019
In this paper we study spatially clustered distribution of individuals using point process theory. In particular we discuss the spatially explicit neutral model of population dynamics of Shimatani (2010) which extends previous works on Malécot theory of
Favretti, Marco
core   +1 more source

Influence of Human Hunting Strategies and Large Carnivore Presence on Population Dynamics of European Facultative Scavengers

open access: yesEcology and Evolution
Ungulates serve as the primary carrion source for facultative scavengers in European ecosystems. In the absence of large carnivores, such as wolves (Canis lupus), human hunting leftovers are the main source of carrion for these scavengers.
Elke Wenting   +4 more
doaj   +1 more source

Spinal interneuron population dynamics underlying flexible pattern generation

open access: yesNature Communications
Abstract The mammalian spinal locomotor network is composed of diverse populations of interneurons that collectively orchestrate and execute a range of locomotor behaviors. Despite the identification of many classes of spinal interneurons constituting the locomotor network, it remains unclear how the network’s collective activity ...
Lahiru N. Wimalasena   +2 more
openaire   +4 more sources

Dynamic Heckscher-Ohlin Results from a 2x2x2x2 Overlapping Generations Model with Unequal Population Growth Rates [PDF]

open access: yes
This paper considers a two-country world where the population in one country grows faster than the other, and investigates the implications of the addition of non-stationary population dynamics to a simple 2- commodity, 2-factor model of international ...
Serdar Sayan
core  

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