Indexing body condition of bighorn sheep: potential for concordance among independent investigators?

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Abstract
Estimates of body condition or body composition are useful metrics, and consistency among results determined by independent investigators enhances their utility. If concordant, albeit subjective, assessments of body condition can be achieved by personnel possessing differing levels of expertise, there are important implications for generating useful information that otherwise may not be obtained by investigators facing logistic or economic constraints, or difficult field conditions. We used a serendipitous opportunity to explore level of agreement among personnel with disparate levels of anatomical knowledge and familiarity with palpation to index body condition of 55 bighorn sheep ( Ovis canadensis ). Our preliminary results—albeit affected by sample size—suggested the investigators interpreted and applied scoring criteria similarly, despite their differing backgrounds. Given the potential to gain meaningful information on body condition that otherwise may not be attainable, we encourage further evaluation of concordance among independent investigators whenever body condition of bighorn sheep can be rated independently by >1 individual and, further, that the information be shared widely.

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