Ticks and Disease |
From inside the book
Results 1-3 of 27
Page 23
As the humidity is raised the tick loses less water relative to saturation deficiency .
At high relative humidities ( 95 % r . h . and over ) , survival is not related to
saturation deficiency at all , for in many cases no overall water loss is sustained
over ...
As the humidity is raised the tick loses less water relative to saturation deficiency .
At high relative humidities ( 95 % r . h . and over ) , survival is not related to
saturation deficiency at all , for in many cases no overall water loss is sustained
over ...
Page 25
following conclusions : " ( i ) If the humidity is near the point of equilibrium , the
exchanges of water are determined by the 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 water , yet at ...
following conclusions : " ( i ) If the humidity is near the point of equilibrium , the
exchanges of water are determined by the 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 water , yet at ...
Page 226
The mat encloses a layer of air which is relatively still and insulated from the
variations both of temperature and , particularly , of the relative humidity of the
macroclimate . Two layers can be recognized within the mat : ( i ) the upper mat
for ...
The mat encloses a layer of air which is relatively still and insulated from the
variations both of temperature and , particularly , of the relative humidity of the
macroclimate . Two layers can be recognized within the mat : ( i ) the upper mat
for ...
What people are saying - Write a review
We haven't found any reviews in the usual places.
Contents
CUTICLETHE KEY TO Tick ADAPTABILITY | 10 |
EXTERNAL FEATURES OF SOME ECONOMICALLY IMPORTANT | 27 |
CAPITULUM AND FEEDING MECHANISM | 92 |
Copyright | |
6 other sections not shown
Other editions - View all
Common terms and phrases
activity adults Africa Amblyomma andersoni animals appear areas associated attached Babesia base basis become bite blood body broad capitulum cattle cells cheliceral closely colour complete coxa cuticle cytoplasm Dermacentor disease distribution dogs dorsal drop effects eggs engorged evidence external feeding female fever fluid frequently further glands grooves hairs hard host humidity hypostome increase infection inner Ixodes known larvae lateral layer Lees legs length less male margin moubata moulting muscles narrow natural nymphs observed occur organ outer pair parasites pass period plate posterior present produced range records region relative remain reported ricinus rickettsiae rounded salivary scutum seasonal secretion segment sheep short shown side similar skin slightly species spur stages suggested surface takes temperature ticks tissues transmission transmitted unfed vector ventral virus wall weight