Explaining species diversity in a fractal world
Grant number: DP160102262 | Funding period: 2016 - 2020
This project aims to improve our understanding of landscape-scale patterns of species diversity, particularly invertebrates. A central question in ecology asks how habitat patchiness interacts with dispersal abilities to determine species diversity. Field tests of hypotheses are lacking due to logistic difficulties in quantifying habitat patchiness and dispersal over landscape scales. A new model proposes that fractals (a clever way of measuring environmental complexity) can capture both habitat patchiness and species' responses. Advances in river ecology have solved the logistic problems and will allow tests to compare the three main hypotheses about species diversity. The project aims to i..View full description
Related publications (13)
Hydrological controls on oviposition habitat are associated with egg-laying phenology of some caddisflies
Jill Lancaster, Stephen P Rice, Louise Slater, Rebecca E Lester, Barbara J Downes
Abstract 1. Seasonal variation in resource availability can have strong effects on life histories and population densities. Emerge..
Using fractals to describe ecologically-relevant patterns in distributions of large rocks in streams
Georgia K Dwyer, Courtney Cummings, Stephen P Rice, Jill Lancaster, Barbara J Downes, Louise Slater, Rebecca E Lester
Measuring the physical complexity of habitats or ecological resources is often achieved using 27 system-specific methods that make..
Capturing geomorphologial patterns in ecological resources: fractal dimensions describe fluvial rock distributions
Georgia K Dwyer, Stephen P Rice, Jill Lancaster, Barbara J Downes, Louise Slater, Rebecca E Lester
Oral presentation at the annual meeting of the Ecological Society of Australia in December 2020
Avoidance and aggregation create consistent egg distribution patterns of congeneric caddisflies across spatially variable oviposition landscapes.
Jill Lancaster, Barbara J Downes, Rebecca E Lester, Stephen P Rice
Amongst oviparous animals, the spatial distribution of individuals is often set initially by where females lay eggs, with potentia..
Terrestrial-aquatic transitions: Local abundances and movements of mature female caddisflies are related to oviposition habits but not flight capability
Jill Lancaster, Barbara J Downes, Georgia K Dwyer
1. Movement behaviours of adult aquatic insects can produce distinct spatial distribution patterns. Studies of adult abundance wit..