Integrative Evolutionary Ecology & Behaviour

Invasive redback spiders from New Zealand and Japan are more dispersive than Australian natives. Click to learn more! Mowery et al 2021.
What is new about sexual cannibalism in South American Widows? Click to learn more! Baruffaldi & Andrade 2021
How do male black widows use chemicals to find females & defeat rivals?
Are there native black widows in central Canada?
Does female choosiness change with social context?
How do male redback spiders avoid cannibalism?
Masked Lab! May 2021
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We examine how reciprocal effects of ecological and social factors influence reproductive tactics, life history decisions, physiological performance, and sexual selection. One recent focus is exploring how these processes shape plasticity and divergence in phenotypic traits related to mating in geographically separated populations, and how these may be related to invasiveness. Our work includes laboratory and field studies of invertebrates, and our primary study organisms are the black widow spiders (genus Latrodectus) and their relatives.

Statement of Lab Values & Commitments

Founder & Co-Chair: Toronto Initiative for Diversity & Excellence 

Co-Founder & President: Canadian Black Scientists Network

Brief BIO

portrait of a woman in a suit holding a spider moult skin.

University Professor Maydianne CB Andrade


Recent Publications