Sarah A. Bekessy

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Araucaria araucana (Monkey Puzzle), a southern South American tree species of exceptional cultural and economic importance, is of conservation concern owing to extensive historical clearance and current human pressures. Random amplified polymorphic DNA (RAPD) markers were used to characterise genetic heterogeneity within and among 13 populations of this(More)
In response to the increasing loss of native vegetation and biodiversity, a growing number of countries have adopted “offsetting” policies that seek to balance local habitat destruction by restoring, enhancing and/or protecting similar but separate habitat. Although these policies often have a stated aim of producing a “net gain” or “no net loss” in(More)
Environmental impact assessment (EIA) is a key mechanism for protecting threatened plant and animal species. Many species are not perfectly detectable and, even when present, may remain undetected during EIA surveys, increasing the risk of site-level loss or extinction of species. Numerous methods now exist for estimating detectability of plants and(More)
There is a growing view that to make efficient use of resources, ecological monitoring should be hypothesis-driven and targeted to address specific management questions. 'Targeted' monitoring has been contrasted with other approaches in which a range of quantities are monitored in case they exhibit an alarming trend or provide ad hoc ecological insights.(More)
In this quantitative review, we investigate the degree to which landscape ecology studies that use spatial data address spatial uncertainty when conducting analyses. We identify three broad categories of spatial uncertainty that are important in determining the characterisation of landscape pattern and affect the outcome of analysis in landscape ecology:(More)
Systematic conservation planning (SCP) represents a significant step toward cost-effective, transparent allocation of resources for biodiversity conservation. However, research demonstrates important consequences of uncertainties in SCP and of basing methods on simplified circumstances involving few real-world complexities. Current research often relies on(More)
Remote sensing data type, classification technique and class description act together to produce, large differences in the classification of landcover. The resulting map will vary in the extent, patchiness and accuracy of classified areas. Differences in the classification of a landcover map are the result inter-relationships between a number of scale(More)
Adaptive management is an approach to environmental management based on learning-by-doing, where complexity, uncertainty, and incomplete knowledge are acknowledged and management actions are treated as experiments. However, while adaptive management has received significant uptake in theory, it remains elusively difficult to enact in practice. Proponents(More)
Finding sustainable ways to increase the amount of private land protected for biodiversity is a challenge for many conservation organizations. In a number of countries, organizations use 'revolving fund' programs, whereby land is purchased, and then on-sold to conservation-minded owners with a condition to enter into a conservation covenant or easement. The(More)