1. Interspecific competition influences which, how many and where species coexist in biological communities. Interactions between species in different trophic levels can mediate interspecific competition; e.g. predators are known to reduce competition between prey species by suppressing their population sizes. A parallel phenomenon may take place in host-parasite systems, with host defence medi...

Data were obtained from a population consisting of 160 Merino ewes, as well as 64 male and 75 female progeny of these ewes at the 2-tooth age. The age and sex groups were maintained in separate flocks. The population has been divergently selected from the same base since 1986, either for (high or H line) or against (low or L line) maternal multiple rearing ability. All animals were inspected fo...

Hematophagus arthropod bloodmeals may be useful in identifying individual hosts. To examine the application of human lice as a forensic tool, that is, as evidence of physical contact between individuals, body lice from a laboratory colony and head lice, collected from the head of infested children, were studied. The DNA profile of an individual was detectable in the pooled bloodmeals of two bod...

Ab^r.irt: Human \olunt<’crs were exposed. unt.li’r nn-dical surveillance. ro 34 g of a 5°o formulation cOEisisting of 5"o Mubam’1"^ (t-iK-n^othienyI-^-irK-thylcarbamatft’’ in pyr;ix powder \\v;wi lo evaluate ihe foimnlation’h porcniial valm-’ as a louse toxicant. The icst was conciucKid at tlic Republic of Keif-a’;! Anny Disciplinary Cunicr. .it Kwangju. iirai Sroul. Korea fioin Jainiary to -\L...

A study of head lice infestations among young people, adults and elderly individuals was conducted from August 2010 to July 2013 in Manaus, AM, Northern Brazil. Hair samples collected from 1,860 individuals in 18 barber shops and beauty parlors were examined for the ectoparasite. The occurrence of pediculosis and its association with factors, such as sex, age, ethnicity, hair characteristics an...

By ISAAC SULTAN A joint proposal raising the athletic fee at the College o $2 per semester was passed last month by two committees in athletics. : The -Student-Faculty Gommittee HI Intercollegiate Athletics (SFJA) *and the General Faculty bmmittee on Inter-collegiate Athetics (GFCIA) both passed a moion which calls for the $1 increase o begin in the Fall' '59 term. The ootiori applies to Da...