Maja Norling, Karin Stenzelius, Nina Ekman, Anne Wennick
High School Students' Experiences in School Toilets or Restrooms
The Journal of school nursing : the official publication of the National Association of School Nurses
present simple model investment across suite different antipredatory defences defences incur initial construction cost andor may costly time utilised aim use simple general mathematical model explore prey face single predatory threat attack nature invest single defence spread investment across one defence help explain observed variety defences single prey individual may employ repeated attacks similar nature even different stages one attack previous verbal reasoning suggested prey specialise investment defences utilised early predation sequence quantitative model predicts depending relatively properties different defences may concentrated investment early acting lateacting defences spread investment across defence types variety predictions agreement variation defences shown natural organisms subjected repeated predatory attack