Effective species conservation action often relies on knowing what directly drives mortality. To identify factors contributing to platypus mortality, we collated details of more than 400 deaths recorded since 1989. Important causal agents included drowning in fish nets or enclosed yabby traps, predation (mainly by foxes), becoming accidentally hooked by recreational anglers (and then released with line still trailing behind the animal), litter entanglement and being hit by motor vehicles. Photograph by Nicholas Rowlands.

This article belongs to the collection: Recent research on the platypus.

Survival of mammal species under climate change is increasingly reliant on refuges that provide protection from extreme drought and fire. We identified refuges for the threatened marsupial swamp antechinus. While many were very small (<40 ha) and located in Coastal Dunes subject to destruction under sea level rise, very few were large (>1000 ha), located in unfragmented habitat with complex vegetation. Effective management will require translocations, protection from inappropriate fire and predators, and control of Phytophthora infestations. Photograph by Barbara Wilson.