权威例句
The use spraints to survey populations of otter Lutra lutraThe use of spraints to survey populations of otters Lutra lutraThe use of spraints for surveying otter Lutra lutra populations: An evaluationOtter movements assessed by genotyped spraints in southern ItalyUsing videotaping to validate the use of spraints as an index of Eurasian otter ( Lutra lutra ) activitySex identification of the Eurasian otter Lutra lutra by PCR typing of spraintsSurveying otter Lutra lutra populations: A discussion of problems with spraintsThe value of otter Lutra lutra surveying using spraints: An analysis of its success and problems in BritainAnalysis of otter (Lutra lutra) spraints: Part 1: Comparison of methods to estimate prey proportions; Part 2: Estimation of the size...Errors associated with otter Lutra lutra faecal analysis. I. Assessing general diet from spraints