Dispersal and Species Coexistence Across Patchy Landscapes

Grant number: DP120103145 | Funding period: 2012 - 2015

Completed

Abstract

Millions of dollars are spent rehabilitating degraded river ecosystems in the absence of knowing whether and how species will be able to disperse to and re-populate repaired sections. This research will provide definitive information allowing restoration efforts to be targeted properly in streams surrounded by, and serving, agricultural areas.

Related publications (11)

Multiyear resource enrichment creates persistently higher species diversity in a landscape-scale field experiment

J Lancaster, BJ Downes

2021-09-01

Short-term resource enrichment can increase species diversity in communities, but prolonged resource enrichment may result in eith..

From Insects to Frogs, Egg-Juvenile Recruitment Can Have Persistent Effects on Population Sizes

Barbara J Downes, Barbara L Peckarsky, Jill Lancaster, William D Bovill, Maria Alp

2021-01-01

Understanding what regulates population sizes of organisms with complex life cycles is challenging because limits on population si..

Itinerant, nomad or invader? A field experiment sheds light on the characteristics of successful dispersers and colonists

BJ Downes, J Lancaster

2018-11-01

Many hypotheses in ecology depend upon identifying species that can disperse across landscapes and colonise new habitat patches. S..

Aquatic versus terrestrial insects: Real or presumed differences in population dynamics?

J Lancaster, BJ Downes

2018-01-01

The study of insect populations is dominated by research on terrestrial insects. Are aquatic insect populations different or are t..

Species-specific prevalence of mermithid parasites in populations of six congeneric host caddisflies of Ecnomus McLachlan, 1864 (Trichoptera: Ecnomidae)

William Bovill, Jill Lancaster

2017-05-24

Mermithid nematodes are entomophagous parasites and, despite being present in diverse aquatic insects, studies of caddisflies acti..

Dispersal traits may reflect dispersal distances, but dispersers may not connect populations demographically

Jill Lancaster, Barbara J Downes

2017-05-01

Ecological traits that reflect movement potential are often used as proxies for measured dispersal distances. Whether such traits ..

A fresh approach reveals how dispersal shapes metacommunity structure in a human-altered landscape

BJ Downes, J Lancaster, A Glaister, WD Bovill

2017-04-01

To understand species losses from disturbed landscapes, it is important to distinguish the effects of degraded environmental condi..

A landscape-scale field experiment reveals the importance of dispersal in a resource-limited metacommunity

J Lancaster, BJ Downes

2017-02-01

Dispersal may play a strong role in driving species diversity across landscapes. Theoretically, dispersal permits species to remai..

Large-scale manipulation of oviposition substrata affects egg supply to populations of some stream-dwelling caddisflies

A Macqueen, BJ Downes

2015-04-01

Oviposition substrata are a crucial resource for many stream-dwelling insects and may have a strong effect on population densities..

Implications of oviposition site selection and habitat limitation for caddisfly populations in sand-bed streams

Ashley Macqueen

2015-01-01

This work has established that oviposition habitat can be limiting in streams, thus adding to a small body of work on this area, b..

Population densities and density–area relationships in a community with advective dispersal and variable mosaics of resource patches

J Lancaster, BJ Downes

2014-12-01

Many communities comprise species that select resources that are patchily distributed in an environment that is otherwise unsuitab..

University of Melbourne Researchers

Jill Lancaster

Barbara Downes