Publikationen

How to account for habitat sustainability in weed management programms?

Autor(en)
Robert Richter, Stefan Dullinger, Franz Essl, Michael Leitner, Gero Vogl
Abstrakt

Designing efficient management strategies for already established invasive alien species is challenging. Here, we ask whether environmental suitability, as predicted by species distribution models, is a useful basis of cost-effective spatial prioritization in large-scale surveillance and eradication programmes. We do so by means of spatially and temporarily explicit simulations of the spread of a case study species (Ambrosia artemisiifolia L.) in Austria and southern Germany under different management regimes. We ran these simulations on a contiguous grid of the study area with each grid cell (similar to 35 kmA(2)) characterized by a habitat suitability value derived from the predictions of a species distribution model. The management regimes differed in terms of (a) a minimum habitat suitability rank p (suitability threshold) used to separate cells for surveillance from those which are not controlled; and (b) the strategy for selecting cells for annual campaigns from the pool defined by p. According to the results (i.e., number of cells infested in 2050 as well as infested on average per year) the most efficient way to base surveillance on suitability is to define the temporal sequence of management according to the grid cells' suitability ranks. Management success declines sharply when the suitability threshold is set too high, but only moderately when it is set too low. We conclude that accounting for environmental suitability is important for large-scale management programmes of invasive alien species and that species distribution models are hence useful tools for designing such programmes.

Organisation(en)
Dynamik Kondensierter Systeme, Department für Botanik und Biodiversitätsforschung
Externe Organisation(en)
Technische Universität München
Journal
Biological Invasions
Band
15
Seiten
657-669
Anzahl der Seiten
13
ISSN
1387-3547
DOI
https://doi.org/10.1007/s10530-012-0316-8
Publikationsdatum
09-2012
Peer-reviewed
Ja
ÖFOS 2012
106001 Allgemeine Biologie, 103015 Kondensierte Materie, 106026 Ökosystemforschung
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/how-to-account-for-habitat-sustainability-in-weed-management-programms(d46c2435-7253-446d-a5bb-875e052df330).html