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3
votes
2answers
49 views

Different Effects of Detection Probability Between Presence and Count Data at the Same Location

I'm modeling habitat suitability for a large, mobile animal using occurrence data (presence only - I have no true absence data in this case) collected from camera traps (stations with automatic ...
17
votes
1answer
763 views

Additive genetic variance components from LMER in R

I've set up some dummy data in R which makes 40 genetically related lines, they are all siblings within a line so are genetically related by a factor of ½ thus additive genetic variance should be ...
3
votes
0answers
80 views

Is there a standard formula/calculation for sexual dimorphism?

Is there a standard, or most accepted, way to present a value for sexual dimorphism? For example, one could use $$\frac{\text{Female value}}{\text{Male value}} -1$$ This would give negative values ...
0
votes
0answers
38 views

Large set of semen microscope images needed

As a course project I have to write an algorithm whose purpose is to analyze a sperm sample (total number, motility etc). In order to do that though, I need to have a sufficient number of images to ...