ERA

Download the full-sized PDF of Determining The Critical Weight Of The Rocky Mountain Wood Ticks Dermacentor andersoni Stiles (Acari: Ixodidae)Download the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R3ND2N

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

Determining The Critical Weight Of The Rocky Mountain Wood Ticks Dermacentor andersoni Stiles (Acari: Ixodidae) Open Access

Descriptions

Other title
Critical Weight Of Dermacentor Andersoni
Subject/Keyword
Dermacentor andersoni, ixodid tick, Rocky mountain wood tick, critical weight, salivary gland degeneration, ovary weight, oocyte length, ovary vitellin content, reattachment
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Ullah, A.K.M. Shahid
Supervisor and department
Dr. W. Reuben Kaufman
Examining committee member and department
Keddie, Andrew (Biological Sciences)
Ali, Declan (Biological Sciences)
Sperling, Felix (Biological Sciences)
Department
Department of Biological Sciences
Specialization
Physiology, Cell and Developmental Biology
Date accepted
2012-09-28T10:19:38Z
Graduation date
2012-09
Degree
Master of Science
Degree level
Master's
Abstract
The feeding cycle of female ixodid ticks is divided into preparatory, slow and rapid feeding phases. Female ticks, virgin or mated, reach a ‘critical weight’ (CW; 10-13X the unfed weight) at the transition between the slow and rapid feeding phases, which is characterized by several physiological and behavioural changes. To date, the CW has been determined for Amblyomma hebraeum only. This study established that, in both mated and virgin Dermacentor Andersoni, salivary gland degeneration and ovarian development are triggered when the tick exceeds 10-13X the unfed weight. However, mated ticks undergo these changes 4 days earlier than virgin ticks. Unlike A. hebraeum, virgin D. andersoni regularly fed well beyond their CW, and occasionally fed up to 100X their unfed weight.
Language
English
DOI
doi:10.7939/R3ND2N
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication

File Details

Date Uploaded
Date Modified
2014-04-24T23:46:53.387+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 3895142
Last modified: 2015:10:12 12:32:02-06:00
Filename: Ullah_A.K.M. Shahid_Fall 2012.pdf
Original checksum: d7e6aab01e07cef16a4aaa41037b84df
Well formed: true
Valid: true
File author: Rigan
Page count: 83
Activity of users you follow
User Activity Date