Behavioral Ecology and Sociobiology, Vol. 75, No. 11 (November 2021), pp. 1-15 (15 pages) Nest-dwelling ectoparasites are a major source of stress for growing nestling birds, as they can negatively ...

1. For iteroparous organisms life-history theory predicts a trade-off between current and future reproduction, and therefore the evolution of host responses to current parasite infestation that will ...

A hen infested with sticktight fleas. (Courtesy of Amy Murillo/UC Riverside) Keeping backyard chickens can be a lot of fun, not to mention the added bonus of getting fresh eggs. But how s it for the ...

Mannequins for sand-bathing — bee eaters may walk away with that title without a contest, where humans handle the adjudication. A majority of us, particularly those who let birdwatching happen to them ...

A parasite is an organism that lives in or on an organism of another species. Three main classes of parasites can cause disease in humans: protozoa, helminths, and ectoparasites. Protozoa and ...

Pediculosis (head, body, or pubic lice infestation) and scabies are caused by ectoparasites that are found to some degree in all human populations, with pruritus being the most common presenting ...

A new study suggests that humans have a distinct, itchy defense response to ticks and other ectoparasites. By Sabrina Imbler In a way, nausea is our trusty personal bodyguard. Feeling nauseated is ...