Spread rates on fragmented landscapes: the interacting roles of demography, dispersal and habitat availability

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Abstract

Aim
We still lack a comprehensive understanding of the relative importance of demographic, dispersal and landscape characteristics on species’ rates of range expansion (RRE) and on how these factors interact. Here, we provide an analysis of these effects for passive dispersers, by investigating how habitat characteristics, such as habitat quality, availability and fragmentation, interplay with species’ dispersal characteristics in determining species’ RRE. In addition, we assessed the predictability of RRE in cases where we have the knowledge of a species’ demography, dispersal and habitat availability.

Methods
Using the newly available individual-based modelling platform, RangeShifter we simulated the range expansion of species with different dispersal abilities, by varying mean dispersal distance and number of emigrants, on various landscapes. Landscapes varied in habitat quality (in terms of carrying capacity and species’ growth rates) and in habitat availability (in terms of the proportion of suitable habitat and its degree of fragmentation).
Original languageEnglish
Pages (from-to)1266-1275
Number of pages10
JournalDiversity and Distributions
Volume22
Issue number12
Early online date21 Sep 2016
DOIs
Publication statusPublished - Dec 2016

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habitat availability
demography
range expansion
habitats
habitat quality
fragmentation
species dispersal
habitat
carrying capacity
rate
demographic statistics
modeling

Keywords

  • dispersal
  • habitat fragmentation
  • habitat quality
  • range expansion
  • spatially explicit
  • individual-based model

Cite this

@article{5f089f7e9a8849e6960f717dee293935,
title = "Spread rates on fragmented landscapes: the interacting roles of demography, dispersal and habitat availability",
abstract = "AimWe still lack a comprehensive understanding of the relative importance of demographic, dispersal and landscape characteristics on species’ rates of range expansion (RRE) and on how these factors interact. Here, we provide an analysis of these effects for passive dispersers, by investigating how habitat characteristics, such as habitat quality, availability and fragmentation, interplay with species’ dispersal characteristics in determining species’ RRE. In addition, we assessed the predictability of RRE in cases where we have the knowledge of a species’ demography, dispersal and habitat availability.MethodsUsing the newly available individual-based modelling platform, RangeShifter we simulated the range expansion of species with different dispersal abilities, by varying mean dispersal distance and number of emigrants, on various landscapes. Landscapes varied in habitat quality (in terms of carrying capacity and species’ growth rates) and in habitat availability (in terms of the proportion of suitable habitat and its degree of fragmentation).",
keywords = "dispersal, habitat fragmentation, habitat quality, range expansion, spatially explicit, individual-based model",
author = "Ceres Barros and Palmer, {Stephen C F} and Greta Bocedi and Travis, {Justin M J}",
note = "This work was supported by the award of the Natural Environment Research Council grant NE/J008001/1 to JMJT.",
year = "2016",
month = "12",
doi = "10.1111/ddi.12487",
language = "English",
volume = "22",
pages = "1266--1275",
journal = "Diversity and Distributions",
issn = "1366-9516",
publisher = "WILEY-BLACKWELL",
number = "12",

}

TY - JOUR

T1 - Spread rates on fragmented landscapes: the interacting roles of demography, dispersal and habitat availability

AU - Barros, Ceres

AU - Palmer, Stephen C F

AU - Bocedi, Greta

AU - Travis, Justin M J

N1 - This work was supported by the award of the Natural Environment Research Council grant NE/J008001/1 to JMJT.

PY - 2016/12

Y1 - 2016/12

N2 - AimWe still lack a comprehensive understanding of the relative importance of demographic, dispersal and landscape characteristics on species’ rates of range expansion (RRE) and on how these factors interact. Here, we provide an analysis of these effects for passive dispersers, by investigating how habitat characteristics, such as habitat quality, availability and fragmentation, interplay with species’ dispersal characteristics in determining species’ RRE. In addition, we assessed the predictability of RRE in cases where we have the knowledge of a species’ demography, dispersal and habitat availability.MethodsUsing the newly available individual-based modelling platform, RangeShifter we simulated the range expansion of species with different dispersal abilities, by varying mean dispersal distance and number of emigrants, on various landscapes. Landscapes varied in habitat quality (in terms of carrying capacity and species’ growth rates) and in habitat availability (in terms of the proportion of suitable habitat and its degree of fragmentation).

AB - AimWe still lack a comprehensive understanding of the relative importance of demographic, dispersal and landscape characteristics on species’ rates of range expansion (RRE) and on how these factors interact. Here, we provide an analysis of these effects for passive dispersers, by investigating how habitat characteristics, such as habitat quality, availability and fragmentation, interplay with species’ dispersal characteristics in determining species’ RRE. In addition, we assessed the predictability of RRE in cases where we have the knowledge of a species’ demography, dispersal and habitat availability.MethodsUsing the newly available individual-based modelling platform, RangeShifter we simulated the range expansion of species with different dispersal abilities, by varying mean dispersal distance and number of emigrants, on various landscapes. Landscapes varied in habitat quality (in terms of carrying capacity and species’ growth rates) and in habitat availability (in terms of the proportion of suitable habitat and its degree of fragmentation).

KW - dispersal

KW - habitat fragmentation

KW - habitat quality

KW - range expansion

KW - spatially explicit

KW - individual-based model

U2 - 10.1111/ddi.12487

DO - 10.1111/ddi.12487

M3 - Article

VL - 22

SP - 1266

EP - 1275

JO - Diversity and Distributions

JF - Diversity and Distributions

SN - 1366-9516

IS - 12

ER -