This paper addresses some of the ethical and welfare considerations implicit in the application of general techniques in common use during the course of collecting data in ecological field work. Even if they are not explicitly constructed as manipulative experiments, many field studies involve some degree of intervention during routine monitoring programmes: through disturbance caused merely by the presence of an observer or where specific sampling techniques themselves involve capture, handling and marking. Such interventive techniques may cause discomfort, distress or loss of fitness, even in the extreme may result in incidental mortality — and the ethical scientist should critically evaluate the implications of each methodology before adopting any procedure. The paper reviews by way of example the types of objective information now available for both small and larger mammals in relation to: (i) distress and mortality during capture operations; (ii) mortality or distress caused at the time by marking; (iii) longer-term consequences of handling and marking in terms of subsequent [delayed] mortality or loss of fitness, before considering a formal framework for assessment of costs and benefits of any given field programme.
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Putman, R.J. Ethical considerations and animal welfare in ecological field studies. Biodivers Conserv 4, 903–915 (1995). https://doi.org/10.1007/BF00056197
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DOI: https://doi.org/10.1007/BF00056197