Ticks and Disease |
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Page 17
... increase in size ; thus unfed and fully fed females of I. ricinus weigh 1.8 and 250 mg , respectively , i.e. a weight increase of about 140 times . For accommodation of this increase , the cuticle must stretch considerably , and this is ...
... increase in size ; thus unfed and fully fed females of I. ricinus weigh 1.8 and 250 mg , respectively , i.e. a weight increase of about 140 times . For accommodation of this increase , the cuticle must stretch considerably , and this is ...
Page 134
... increases from 3 to 10 mg in the first 5 days , subsequently accelerating to 245 mg during the final feeding stages . The general form of the graph for the weight increase of feeding ticks is that of a sigmoid curve ( Fig . 46 ) . These ...
... increases from 3 to 10 mg in the first 5 days , subsequently accelerating to 245 mg during the final feeding stages . The general form of the graph for the weight increase of feeding ticks is that of a sigmoid curve ( Fig . 46 ) . These ...
Page 142
... increase in size of the intestine during blood sucking , this being attributed to an increase in size of the individual cells due to stretching , as well as to their rapid growth . This increase is proportionate along the length of the ...
... increase in size of the intestine during blood sucking , this being attributed to an increase in size of the individual cells due to stretching , as well as to their rapid growth . This increase is proportionate along the length of the ...
Contents
INTRODUCTION | 1 |
CUTICLE THE KEY TO TICK ADAPTABILITY | 10 |
EXTERNAL FEATURES OF SOME ECONOMICALLY IMPORTANT SPECIES 27 | 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 large number larvae larvae and nymphs lateral layer Lees legs length louping ill lumen male mammals 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