poultry products are considered as one of the most important sources of food for humans, worldwide. indigenous poultry production has grown in popularity among villagers and some urbanites due to simple maintenance conditions, adequate adaption of poultry to different climatic conditions, and acceptable product yield. parasites are among the main pathogenic agents, threatening the health of pou...

background: demodex is a genus of mites living predominantly in mammalian pilosebaceous units. they are commonly detected in the skin of face, with increasing numbers in inflammatory lesions. causation between demodex mites and inflammatory diseases, such as rosacea, blepharitis, perioral and seborrhoeic dermatitis or chalazion, is controversially discussed. clinical observations indicate a pri...

During an ongoing survey of the ectoparasites of birds in Canada (Bourgeois and Threlfall, 1981, Proc. Entomol. Soc. Wash. 83: 799-800; Eveleigh and Threlfall, 1974a, Proc. Entomol. Soc. Wash. 76: 270-277; Eveleigh and Threlfall, 1974b, Acarologia 16: 621-635; Eveleigh and Threlfall, 1975, Can. J. Zool. 53: 82-86; Eveleigh and Threlfall, 1976, Can. J. Zool. 54: 1694-171 1; Fitzpatrick and Threl...

Egypt is characterized by many deserts associated with cities. The desert raven considered an ancient one of the most abundant birds in Egyptian and susceptible to a wide range ectoparasites. therefore, present study was identify ectoparasites that infect brown-necked Corvus ruficollis Wadi Dara, Eastern Desert, Red Sea Governorate, Egypt. During two years from 2020 2022, several parasites were...

Introduction There is considerable variation in the extent of the association between a blood sucking insect and its host. Blood sucking Diptera such as mosquitoes are temporary ectoparasites, only visiting the host for long enough to obtain a blood meal. Temporary ectoparasites such as tsetse flies, tabanids and mosquitoes tend to take relatively large blood meals, thus limiting the danger fro...

Homo sapiens L. has been described as the naked ape, and this nakedness undoubtedly constitutes one of the most striking differences in appearance between man and the apes. Nakedness has been attributed at various times to sexual selection [1], aquatic stage [2], hunting [3], cooling [4], sex [5], neoteny [6] and allometry [7], most proposed explanations logically revealing some aspect of the p...

For birds, the first line of defence against ectoparasites is preening. The effectiveness of self-preening for ectoparasite control is well known. By contrast, the ectoparasite control function of allopreening-in which one birds preens another-has not been rigorously tested. We infested captive pigeons with identical numbers of parasitic lice, and then compared rates of allopreening to the abun...

A major goal of community ecology is to identify and explain non-random patterns of species composition. To date, the search for nested patterns in parasite component communities of the same fish host species has not been attempted, despite the fact that this higher hierarchical level is more relevant to nestedness analyses. The aims of this study are first, to determine the structure of compon...

Raptorial birds harbor a variety of ectoparasites and the mayority of them are host specific. The aim of this study was to identify the ectoparasites of captive birds of prey from Mexico, as well as to verify their impact in the health of infested birds. Raptorial birds were confiscated and kept in captivity at the Centro de Investigación y Conservación de Vida Silvestre (CIVS) in Los Reyes La ...