Abstract
In this note, we suggest the adoption of expert-based approaches for threat analysis to allow an assessment of the magnitude of efforts of wildlife management actions. Similar to what is proposed for expert-based quantification of threat events, in wildlife management this approach can be applied by assigning a score to the extent of the areas affected by management, their frequency and intensity of action, supporting the decision-making process and optimizing the management strategies, both ordinary (for example, in the operational management of nature reserves) and extraordinary (for example, within specific target-oriented conservation projects). Quantifying and defining priority ranks among management events can be useful: (i) to compare managed areas with each other or the same areas in different times; (ii) to adjust the allocation of resources among alternative management actions (assigning more or less resources in terms of time, budget, operators, and technology). Finally, similar to what is done in the threat analysis approach, managers could compare the effort (magnitude) of management at different times. We report, as an example, a first quantification for a case study carried out in a coastal nature reserve.
Highlights
IntroductionAny event can be characterized by its regime in time and space [1]. This characterization is used in both the quantification of natural disturbances [2] and the analysis of anthropogenic threats [3,4,5,6]
In ecology, any event can be characterized by its regime in time and space [1]
The approaches characterizing anthropogenic threats have been mainly based on the evaluation and quantification of regimes of threats, for instance, considering the extent, frequency, duration, and intensity in order to obtain an overall value of impact
Summary
Any event can be characterized by its regime in time and space [1]. This characterization is used in both the quantification of natural disturbances [2] and the analysis of anthropogenic threats [3,4,5,6]. The approaches characterizing anthropogenic threats have been mainly based on the evaluation and quantification (either analytical approaches or according to expert-based methods) of regimes of threats, for instance, considering the extent, frequency, duration, and intensity in order to obtain an overall value of impact (i.e., their magnitude). This approach, criticized, has been adopted in many conservation contexts and appears effective to rank priorities in conservation (for review, see Reference [7]).
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