Biology of Ticks, Volume 1This is the first volume of a two-volume work on the basic biology, ecology, disease transmission and control of ticks. Ticks are parasitic insects that infect cattle, birds and people. The health and economic consequences of ticks are so considerable that most land- grant universities have tick laboratories associated with their entomology departments. In addition, state and federal health officials are concerned with disease transmission by ticks. This first volume covers the anatomy, functional morphology, physiology, reproduction, development and ecology of ticks. The descriptions are comprehensive and fully up-to-date. Entomologists, and in particular tick specialists (acarologists), as well as public health officials, will find this work of interest. It will also be extremely useful to advanced students beginning research in these fields. Volume 2 will focus on ticks and disease, with sections on immunological response to tick parasitism, and the control of ticks and disease. |
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Page 164
... Unfed Ticks ( Figs 9.4–9.8 ) In ixodids , the midgut epithelium of unfed , hungry ticks is characterized by large , often gigantic differentiated digestive cells ( DGC ) and degenerating digestive cells ( DDC ) interspersed with ...
... Unfed Ticks ( Figs 9.4–9.8 ) In ixodids , the midgut epithelium of unfed , hungry ticks is characterized by large , often gigantic differentiated digestive cells ( DGC ) and degenerating digestive cells ( DDC ) interspersed with ...
Page 181
... unfed weight ( Table 9.2 ) . Tick feeding is generally very wasteful . In some species , large amounts of hemoglobin ... unfed weight . Overall , larvae of the 5 different species ingested from 6.5 to 10 times their engorged body weight ...
... unfed weight ( Table 9.2 ) . Tick feeding is generally very wasteful . In some species , large amounts of hemoglobin ... unfed weight . Overall , larvae of the 5 different species ingested from 6.5 to 10 times their engorged body weight ...
Page 383
... Unfed , 2–3 wks postmolt Unfed , 2–3 wks postmolt Fed 7 days Fed 7 days Fed 7 days Unfed , 2–3 wks postmolt Unfed , 2–3 wks postmolt 80 100 50 65 75 21 70 106 None None 10 ng ecdo 1 % saline 10 ng ecd " 100 ng ecd " None 10 ng ecd ...
... Unfed , 2–3 wks postmolt Unfed , 2–3 wks postmolt Fed 7 days Fed 7 days Fed 7 days Unfed , 2–3 wks postmolt Unfed , 2–3 wks postmolt 80 100 50 65 75 21 70 106 None None 10 ng ecdo 1 % saline 10 ng ecd " 100 ng ecd " None 10 ng ecd ...
Contents
INTRODUCTION | 3 |
EVOLUTION AND SYSTEMATIC RELATIONSHIPS OF TICKS | 13 |
ECOLOGY OF NONNIDICOLOUS TICKS | 23 |
Copyright | |
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Common terms and phrases
acids acini activity addition adjacent adults Amblyomma appear argasid ticks aspect attached behavior believed blood meal canal cavity cells changes Chapter characteristic cheliceral complex concentrations consists contain cuticle cycle cytoplasm Dermacentor described digestion digits dorsal duct ecdysteroids eggs electron engorged et al evidence extend fat body feeding females Figure fluid folded Following function genital genus glands granules groove hemolymph highly hormone host hypostome illustrating important increase indicate insects ixodid ticks known larvae lateral layer lipid located lumen males mated material Measurement bar membrane micrographs midgut muscles nerve noted numerous nymphs occur oocytes organ Ornithodoros outer oviposition paired period permission pheromone plate pore posterior production protein region representative response role salivary glands secretion segment sensilla showing similar Sonenshine species stage structure studies suggest surface surrounding synganglion tissues tubules types unfed variabilis ventral wall weight