Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Emergent encoding of dispersal network topologies in spatial metapopulation models
 
research article

Emergent encoding of dispersal network topologies in spatial metapopulation models

Nicoletti, Giorgio
•
Padmanabha, Prajwal
•
Azaele, Sandro
Show more
November 14, 2023
Proceedings Of The National Academy Of Sciences Of The United States Of America (PNAS)

We address a generalization of the concept of metapopulation capacity for trees and networks acting as the template for ecological interactions. The original measure had been derived from an insightful phenomenological model and is based on the leading eigenvalue of a suitable landscape matrix. It yields a versatile predictor of metapopulation persistence through a threshold value of the eigenvalue determined by ecological features of the focal species. Here, we present an analytical solution to a fundamental microscopic model that incorporates key ingredients of metapopulation dynamics and explicitly distinguishes between individuals comprising the "settled population" and "explorers" seeking colonization. Our approach accounts for general network characteristics (in particular graph-driven directional dispersal which is known to significantly constrain many ecological estimates) and yields a generalized version of the original model, to which it reduces for particular cases. Through examples, including real landscapes used as the template, we compare the predictions from our approach with those of the standard model. Results suggest that in several cases of practical interest, differences are significant. We also examine, with both models, how changes in habitat fragmentation, including removal, addition, or alteration in size, affect metapopulation persistence. The current approach demonstrates a high level of flexibility, enabling the incorporation of diverse "microscopic" elements and their impact on the resulting biodiversity landscape pattern.

  • Details
  • Metrics
Type
research article
DOI
10.1073/pnas.2311548120
Web of Science ID

WOS:001263119900004

PubMed ID

37931096

Author(s)
Nicoletti, Giorgio

University of Padua

Padmanabha, Prajwal

University of Padua

Azaele, Sandro

Natl Biodivers Future Ctr

Suweis, Samir

University of Padua

Rinaldo, Andrea  

École Polytechnique Fédérale de Lausanne

Maritan, Amos

Natl Biodivers Future Ctr

Date Issued

2023-11-14

Publisher

National Academy of Sciences

Published in
Proceedings Of The National Academy Of Sciences Of The United States Of America (PNAS)
Volume

120

Issue

46

Article Number

e2311548120

Subjects

ecological corridors

•

metapopulation capacity

•

habitat fragmentation

•

landscape structure

•

microscopic models

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
ECHO  
FunderFunding(s)Grant NumberGrant URL

Ministry of Education, Universities and Research (MIUR)

Swiss Fonds National via the project"Optimal control of intervention strategies for waterborne disease epidemics"

200021-172578

NBFC

Show more
Available on Infoscience
February 1, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/246211
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés