Results 21 to 30 of about 159,553 (287)

Life history and mating systems select for male biased parasitism mediated through natural selection and ecological feedbacks [PDF]

open access: yes, 2010
Males are often the "sicker" sex with male biased parasitism found in a taxonomically diverse range of species. There is considerable interest in the processes that could underlie the evolution of sex-biased parasitism.
Bacelar, Flora S.   +2 more
core   +5 more sources

Chytridiomycosis of marine diatoms : the role of stress physiology and resistance in parasite-host recognition and accumulation of defense molecules [PDF]

open access: yes, 2017
Little is known about the role of chemotaxis in the location and attachment of chytrid zoospores to potential diatom hosts. Hypothesizing that environmental stress parameters affect parasite-host recognition, four chytrid-diatom tandem cultures ...
Karsten, Ulf   +4 more
core   +3 more sources

Prevalence of Sarcocystis calchasi in free-ranging host species: Accipiter hawks and Common Woodpigeon in Germany [PDF]

open access: yes, 2012
The apicomplexan parasite Sarcocystis calchasi (S. calchasi) triggers pigeon protozoal encephalitis, a neurologic disease in columbids. Accipiter hawks have been identified as the final host, and Columbidae and Psittaciformes as intermediate hosts.
Ciruela, Antonio   +6 more
core   +1 more source

Review of investigations on fleas (Siphonap-tera) of mammals and birds in Ciscaucasia

open access: yesНаука. Инновации. Технологии, 2022
The species history of diversity, distribution, parasite-host relations, sea-sonal rhythms of mammals’ and birds fleas investigations in Ciscaucasia is discussed.
Lyudmila Aleksandrovna Kot   +1 more
doaj  

Host-Parasite relationships and co-infection of nasal mites of Chrysomus ruficapillus (Passeriformes: Icteridae) in southern Brazil

open access: yesIheringia: Série Zoologia, 2018
One hundred twenty-two Chrysomus ruficapillus were examined in southern Brazil, in order to research the presence of nasal mites and the parasite-host relationships.
Fabiana Fedatto Bernardon   +3 more
doaj   +1 more source

Excreción de promastigotos de Leishmania pifanoi por Lutzomyia youngi experimentalmente infectada Excretion of promastigotos of Leishmania pifanoi by experimentally infected Lutzomyia youngi

open access: yesRevista de Saúde Pública, 1995
Se describe el desarrollo poblacional promastigótico de Leishmania pifanoi en Lutzomyia youngi experimentalmente infectada y mantenida con sacarosa al 50% bajo condiciones constantes de temperatura y humedad.
Elina Rojas   +2 more
doaj   +1 more source

Interactions between landscape changes and host communities can regulate echinococcus multilocularis transmission [PDF]

open access: yes, 2003
An area close to the Qinghai-Tibet plateau region and subject to intensive deforestation contains a large focus of human alveolar echinococcosis while sporadic human cases occur in the Doubs region of eastern France.
Bao, G   +10 more
core   +2 more sources

Implicações da agregação espacial de parasitas para a dinâmica populacional na interação hospedeiro-parasita Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction

open access: yesRevista de Saúde Pública, 1997
São discutidos aspectos relacionados ao padrão comumente observado de distribuição agregada de parasitas na população-hospedeira. Geralmente observa-se que a maioria dos hospedeiros alberga poucos parasitas, enquanto que poucos hospedeiros albergam a ...
Claudio J. Von Zuben
doaj   +1 more source

The hospitality phenomenon: philosophical enlightenment? [PDF]

open access: yes, 2007
The emergent paradigm of hospitality studies does not have a coherent philosophical foundation. In seeking to identify a philosophy of hospitality this paper explores Derrida's contribution, along with other writers in philosophy and postcolonial theory,
Conrad Lashley, Kevin D. O'Gorman
core   +1 more source

Host-Parasite Relation in Invasive Aspergillosis

open access: yesNippon Ishinkin Gakkai Zasshi, 2002
Invasive aspergillosis has become one of the most important infectious complications of intensive modern medicine often limiting the success of oncological treatments and transplantation. The rationale for this is found in the effects of immunosuppressive therapies and to a lesser degree underlying disease processes as well as in properties of the ...
openaire   +3 more sources

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