Ticks and Disease |
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Page 197
... nymphal instar but does not feed in the adult stage . One can only postulate that the blood ingested by the nymph is utilized to provide the necessary materials for egg development . This repre- sents an extreme case of specialization ...
... nymphal instar but does not feed in the adult stage . One can only postulate that the blood ingested by the nymph is utilized to provide the necessary materials for egg development . This repre- sents an extreme case of specialization ...
Page 302
... nymphal moult may sometimes occur . The feeding of the two nymphal stages takes place at night ( rarely in intense light ) and is completed within from 5 min to a couple of hours . Unfed first nymphal instars can survive up to 9 months ...
... nymphal moult may sometimes occur . The feeding of the two nymphal stages takes place at night ( rarely in intense light ) and is completed within from 5 min to a couple of hours . Unfed first nymphal instars can survive up to 9 months ...
Page 344
... nymphal R. appendiculatus , which fed in the larval instar on a diseased animal , seems to be lower than in adult ticks infected in the preceding nymphal instar . It has been suggested that mortality caused by East Coast fever in calves ...
... nymphal R. appendiculatus , which fed in the larval instar on a diseased animal , seems to be lower than in adult ticks infected in the preceding nymphal instar . It has been suggested that mortality caused by East Coast fever in calves ...
Contents
INTRODUCTION | 1 |
CUTICLEThe Key to TICK ADAPTABILITY | 10 |
EXTERNAL FEATURES OF SOME ECONOMICALLY IMPORTANT | 27 |
Copyright | |
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Common terms and phrases
activity Africa Amblyomma andersoni animals appear areas argasid Argasidae attached Babesia basis capituli bite body Boophilus broad capitulum cattle cells Cervical grooves cheliceral colour coxa coxal cuticle cytoplasm Dermacentor disease dogs dorsal view eggs endocuticle engorged epicuticle evertsi external spur feeding fluid fully fed genus granules Haemaphysalis hairs hard ticks hexagonus Hoogstraal host humidity Hyalomma hypostome infection inner Ixodes ricinus Ixodidae large number larvae larvae and nymphs lateral layer Lees legs length louping ill lumen male membrane microplus moult muscles Nuttall nymphal nymphs nymphs and adults occur palp palpi parasites pathogens period persicus pharynx posterior margin punctations rabbits relapsing fever reported Rhipicephalus rickettsiae rounded salivary glands sanguineus scutum sheep skin soft ticks spermatophore spiracle Spiracular plate spirochaetes spotted fever spur on coxa surface tarsus tarsus IV temperature Theileria tick species tissues transmission transmitted transverse unfed females variabilis vector ventral virus whilst