Factors such as the density of cats within the population or the sex-ratio can have potentially strong effects on the frequency of fight between individuals and hence appear as important population risk factors for FIV.
Possibly the lack of physical contact in most of behavioural units as well as the small number of combats observed between adult males contribute to "a lower frequency of fight" and "decrease [the] risk of serious injury", as reported by McElliot et al. [cited by Bartos, [ 97]] in Dama dama.
We compared frequencies of fights between pairs of fighters and between fighters and scramblers for large colonies, and for medium-size colonies pooled for all densities (as the frequencies did not differ significantly between densities, Yates χ = 0.079, df = 2, P = 0.961).
But a rider to a spending bill passed by the House and pending in the Senate intends to prevent a universal proxy rule, on the basis that it might increase the frequency of proxy fights and empower special interests.
He encourages husbands to track their wives' ovulation cycles along with the frequency of their fights to better understand what disrupts marital bliss.
Frequency of fighting (factoring in years of fighting) may be a complementary variable; fighting more frequently may reduce the time the brain has to fully recover from prior trauma and be a risk factor that interacts with number of fights.
Furthermore, frequency of fighting may be a complementary variable that requires consideration; fighting more frequently may reduce the time the brain has to fully recover from prior trauma and be a risk factor that interacts with number of fights.
Before the study visit, the fighter's professional record was obtained from commonly cited websites (boxrec.com for boxers and mixed martial arts.com and sherdog.com for MMA fighters) to determine number of years of professional fighting, number and outcome of professional fights, and frequency of professional fighting.
Innocent et al. (2011) found that M. australica males did not adjust the frequency and intensity of fights with variation in the value of females as mates (i.e. the greater value of virgin than mated females) or variation in the relatedness of competitors.
First, meerkats showed no sex difference in frequency of play fighting (consistent with the optimal design argument, since both males and females fight to obtain the dominant breeding position in a group).
