Ticks and Disease |
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Page 25
... relative humidity , e.g. at 25 ° C , 95 % r.h. ( S.D. 1 · 2 mm Hg ) nearly all ticks ( i.e. I. ricinus ) take up ... relative humidity of about 99.4 % . Yet the tick can still gain water from a relative humidity of 90 % or even from ...
... relative humidity , e.g. at 25 ° C , 95 % r.h. ( S.D. 1 · 2 mm Hg ) nearly all ticks ( i.e. I. ricinus ) take up ... relative humidity of about 99.4 % . Yet the tick can still gain water from a relative humidity of 90 % or even from ...
Page 134
... relative distension ratios of body length , body width and body thickness to body weight . These ratios for Boophilus caudatus ? ( = microplus ) are given in Table 4 . TABLE 4 Relative distension coefficient 1st stage 2nd stage 3rd ...
... relative distension ratios of body length , body width and body thickness to body weight . These ratios for Boophilus caudatus ? ( = microplus ) are given in Table 4 . TABLE 4 Relative distension coefficient 1st stage 2nd stage 3rd ...
Page 226
... relative humidity of the macroclimate . Two layers can be recognized within the mat : ( i ) the upper mat for about the top 11⁄2 in . and ( ii ) the lower mat of about 1 in . Below this is the soil which extends down to 3-4 in . The ...
... relative humidity of the macroclimate . Two layers can be recognized within the mat : ( i ) the upper mat for about the top 11⁄2 in . and ( ii ) the lower mat of about 1 in . Below this is the soil which extends down to 3-4 in . The ...
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