John P. Tracey
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View article: Recounting bias can affect abundance estimates from intensive helicopter surveys of feral goats
Recounting bias can affect abundance estimates from intensive helicopter surveys of feral goats Open
Context Aerial surveys are widely used for estimating the abundance of wildlife over large areas. The failure to count all animals within survey transects is commonly acknowledged and there are many techniques to measure and correct for un…
View article: Invasive species and their impacts on agri-ecosystems: issues and solutions for restoring ecosystem processes
Invasive species and their impacts on agri-ecosystems: issues and solutions for restoring ecosystem processes Open
Humans are the most invasive of vertebrates and they have taken many plants and animals with them to colonise new environments. This has been particularly so in Australasia, where Laurasian and domesticated taxa have collided with ancient …