Population dynamics in heterogeneous landscapes: towards a theoretical framework

D J Murrell; R Law; C Dytham

Population dynamics in heterogeneous landscapes: towards a theoretical framework

Biology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The spatial dimension has long been ignored in ecology. Yet spatial heterogeneity is found at all scales and has important consequences for population dynamics. Landscape ecology deals with processes acting at large scales, and spatial heterogeneities that are formed extrinsically. We critically review the current methods that might be used to generate a theoretical framework for landscape ecology that is currently absent. Simulation methods can be easily incorporated into GIS models but are often overly complex, making them hard to analyse, and difficult to compare.

Metapopulation theory assumes a binary landscape of habitat and non-habitat and does not take spatial variation of patches into account. It is however, mathematically tractable and has generated some theory. Finally we introduce the method of moment dynamics which incorporates a second-order statistic on landscape spatial variability into a set of equations describing movement. The method occupies the middle ground between the simulation and metapopulation methods by including spatial variation in environment quality whilst remaining mathematically tractable. We conclude by pointing out the gap in the knowledge of how individuals react to different habitat types.

Original language	English
Title of host publication	HETEROGENEITY IN LANDSCAPE ECOLOGY: PATTERN AND SCALE
Editors	M Maudsley, J Marshall
Place of Publication	LYMM
Publisher	IALE (UK), INT ASSOC LANDSCAPEECOL
Pages	107-118
Number of pages	12
ISBN (Print)	0-9524263-6-6
Publication status	Published - 1999
Event	8th Annual Conference of the International-Association-for-Landscape-Ecology - BRISTOL Duration: 6 Sept 1999 → 8 Sept 1999

Conference

Conference	8th Annual Conference of the International-Association-for-Landscape-Ecology
City	BRISTOL
Period	6/09/99 → 8/09/99

Keywords

COMPETITIVE COEXISTENCE
HABITAT DESTRUCTION
METAPOPULATION DYNAMICS
MOVEMENTS
ECOLOGY
MODEL
GIS
COLEOPTERA
CARABIDAE
DISPERSAL

Cite this

@inproceedings{520071bc1d5b41908f3a94dc6a561492,

title = "Population dynamics in heterogeneous landscapes: towards a theoretical framework",

abstract = "The spatial dimension has long been ignored in ecology. Yet spatial heterogeneity is found at all scales and has important consequences for population dynamics. Landscape ecology deals with processes acting at large scales, and spatial heterogeneities that are formed extrinsically. We critically review the current methods that might be used to generate a theoretical framework for landscape ecology that is currently absent. Simulation methods can be easily incorporated into GIS models but are often overly complex, making them hard to analyse, and difficult to compare.Metapopulation theory assumes a binary landscape of habitat and non-habitat and does not take spatial variation of patches into account. It is however, mathematically tractable and has generated some theory. Finally we introduce the method of moment dynamics which incorporates a second-order statistic on landscape spatial variability into a set of equations describing movement. The method occupies the middle ground between the simulation and metapopulation methods by including spatial variation in environment quality whilst remaining mathematically tractable. We conclude by pointing out the gap in the knowledge of how individuals react to different habitat types.",

keywords = "COMPETITIVE COEXISTENCE, HABITAT DESTRUCTION, METAPOPULATION DYNAMICS, MOVEMENTS, ECOLOGY, MODEL, GIS, COLEOPTERA, CARABIDAE, DISPERSAL",

author = "Murrell, {D J} and R Law and C Dytham",

year = "1999",

language = "English",

isbn = "0-9524263-6-6",

pages = "107--118",

editor = "M Maudsley and J Marshall",

booktitle = "HETEROGENEITY IN LANDSCAPE ECOLOGY: PATTERN AND SCALE",

publisher = "IALE (UK), INT ASSOC LANDSCAPEECOL",

note = "8th Annual Conference of the International-Association-for-Landscape-Ecology ; Conference date: 06-09-1999 Through 08-09-1999",

}

TY - GEN

T1 - Population dynamics in heterogeneous landscapes: towards a theoretical framework

AU - Murrell, D J

AU - Law, R

AU - Dytham, C

PY - 1999

Y1 - 1999

N2 - The spatial dimension has long been ignored in ecology. Yet spatial heterogeneity is found at all scales and has important consequences for population dynamics. Landscape ecology deals with processes acting at large scales, and spatial heterogeneities that are formed extrinsically. We critically review the current methods that might be used to generate a theoretical framework for landscape ecology that is currently absent. Simulation methods can be easily incorporated into GIS models but are often overly complex, making them hard to analyse, and difficult to compare.Metapopulation theory assumes a binary landscape of habitat and non-habitat and does not take spatial variation of patches into account. It is however, mathematically tractable and has generated some theory. Finally we introduce the method of moment dynamics which incorporates a second-order statistic on landscape spatial variability into a set of equations describing movement. The method occupies the middle ground between the simulation and metapopulation methods by including spatial variation in environment quality whilst remaining mathematically tractable. We conclude by pointing out the gap in the knowledge of how individuals react to different habitat types.

AB - The spatial dimension has long been ignored in ecology. Yet spatial heterogeneity is found at all scales and has important consequences for population dynamics. Landscape ecology deals with processes acting at large scales, and spatial heterogeneities that are formed extrinsically. We critically review the current methods that might be used to generate a theoretical framework for landscape ecology that is currently absent. Simulation methods can be easily incorporated into GIS models but are often overly complex, making them hard to analyse, and difficult to compare.Metapopulation theory assumes a binary landscape of habitat and non-habitat and does not take spatial variation of patches into account. It is however, mathematically tractable and has generated some theory. Finally we introduce the method of moment dynamics which incorporates a second-order statistic on landscape spatial variability into a set of equations describing movement. The method occupies the middle ground between the simulation and metapopulation methods by including spatial variation in environment quality whilst remaining mathematically tractable. We conclude by pointing out the gap in the knowledge of how individuals react to different habitat types.

KW - COMPETITIVE COEXISTENCE

KW - HABITAT DESTRUCTION

KW - METAPOPULATION DYNAMICS

KW - MOVEMENTS

KW - ECOLOGY

KW - MODEL

KW - GIS

KW - COLEOPTERA

KW - CARABIDAE

KW - DISPERSAL

M3 - Conference contribution

SN - 0-9524263-6-6

SP - 107

EP - 118

BT - HETEROGENEITY IN LANDSCAPE ECOLOGY: PATTERN AND SCALE

A2 - Maudsley, M

A2 - Marshall, J

PB - IALE (UK), INT ASSOC LANDSCAPEECOL

CY - LYMM

T2 - 8th Annual Conference of the International-Association-for-Landscape-Ecology

Y2 - 6 September 1999 through 8 September 1999

ER -