I am an ecologist, with research interests in both applied and theoretical ecology. My research in applied ecology is focused on management of semi-natural grasslands, and the preservation of the species within them; while my research in theoretical ecology is focused on modelling of vector-borne disease spread to livestock.

Management of semi-natural grasslands

The amount of species-rich, semi-natural grasslands have decreased during the last 60 years, and many of the species dependent on this habitat type have become rare and threatened. Semi-natural grassland species are dependent on management for survival, usually mowing or grazing, and the aim of my research is to find the most beneficial management methods for conservation of grasslands and grassland species. Using studies from Sweden and Europe, as well as other continents, I compare the effect of mowing and grazing, different mowing techniques and mowing frequencies, using meta-analysis to determine the management practice with the most positive effect. The results have so far revealed that grazing have a slightly more positive effect compared to mowing, but that the effects differ depending on for example the type of grassland and other factors.

Vector-borne disease spread

Vector-borne disease spread, i.e. diseases spread by for example mosquitoes or ticks (e.g. Malaria, Lyme disease), is a very current subject. My research is focused on diseases affecting livestock like cattle or sheep, for example Bluetongue. The spread of these diseases can have large consequences, as the control and prevention of these diseases can be very costly. The aim of my project is to create simulation models to analyse disease spread in different types of landscapes. How far can a disease spread if all farms in a landscape are close to each other, what happens if there are animal transports between farms and what effect does infected wildlife (e.g. deer) have on the spread of a disease? Furthermore I examine the effect of vector habitat availability and effects of control measures like transport bans on disease spread. The aim is to make these models for both simulated and real landscapes (e.g. southern Sweden).

Management of vector habitats

My goal for the future is to try and connect both my research subjects, by examining how management of habitats where vectors reproduce affect the vector population, as management of this type of habitats may decrease the amount of surviving larvae. Therefore, management might be an effective control measure against disease spread, while also contributing to for example increased plant species richness in these habitats. 

Publications

2018

Malin Tälle

Conservation of semi-natural grasslands: Effects of different management methods on biodiversity

Doctoral thesis, comprehensive summary

Tim Möhlmann, Uno Wennergren, Malin Tälle, Guido Favia, Claudia Damiani, Luca Bracchetti, Willem Takken, Constantianus J. M. Koenraadt

Community analysis of the abundance and diversity of biting midge species (Diptera: Ceratopogonidae) in three European countries at different latitudes

In Parasites & Vectors

Article in journal

Per Milberg, Håkan Fogelfors, Lars Westerberg, Malin Tälle

Annual burning of semi-natural grasslands for conservation favours tall-grown species with high nectar production

In Nordic Journal of Botany

Article in journal