Latest Blog posts

Important Change to ALMaSS Landscapes

From code version 501 ALMaSS will no longer be able to read old polygon reference files.
This is due to a change of status for orchards and young forest which now need to have a farm manager. Attempts to use old files with new codes will generate an error in errorfile.txt claiming that a farm polygon does not have an owner.

The fix for old files is to assign a owner to all polygons of type 55 & 56 e.g. farm 0. This should have no knock on effects (ie... (see more)

New ALMaSS collaborators from Portugal

Welcome to Sonia, Alberto, Antonio and Joana, from Braganca and Coimbra in Portugal!

Sonia and Alberto are part of a new project to extend the ALMaSS system to model Portuguese landscapes, and in particular olive growing regions. New additions to the ALMaSS species will be needed here, starting with a Collembola model. Once properly underway a short description of the project and its progress will be available on the discussion forum.

Antonio and Joana are both from Coimbra... (see more)

ALMaSS paper on recovery

"Recovery based on plot experiments is a poor predictor of landscape-level population impacts of agricultural pesticides"

Environmental Toxicology Chemistry 2014;33:1499–1507.


Current European Union regulatory risk assessment allows application of pesticides provided that recovery of nontarget arthropods in-crop occurs within a year. Despite the long-established theory of source-sink dynamics, risk assessment ignores depletion of surrounding populations... (see more)

Goose threads moved to Goose Modelling

I have moved the goose threads under a new discussion group called goose modelling. We can more easily discuss new matters in new threads in that group.


Landscape structure mediates the effects of a stressor on field vole populations - new paper

A new ALMaSS paper has been published, currently online first in the journal Landscape Ecology. DOI 10.1007/s10980-013-9932-7  link

There is a pdf deposited in the pdf library. This is an important piece of work demonstrating how landscape strucuture can effect the results of pesticide risk assessments for small mammals.

Abstract: Spatio-temporal landscape heterogeneity has rarely... (see more)