Biology and distribution of the Dicosmoecinae (Trichoptera: Limnephilidae) in western North America Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/gh93h3045

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Literature and museum records have been reviewed to provide a summary on the distribution, habitat associations and biology of six western North American Dicosmoecinae genera and the single eastern North American genus, Ironoquia. Results of this survey are presented and discussed for Allocosmoecus, Amphicosmoecus and Ecclisomvia. Field studies were conducted in western Oregon on the life-histories of four species, Dicosmoecus atripes, D. failvipes, Onocosmoecus unicolor and Ecclisocosmoecus scvlla. Although there are similarities between genera in the general habitat requirements, the differences or variability is such that we cannot generalize to a "typical" dicosmoecine life-history strategy. A common thread for the subfamily is the association with cool, montane streams. However, within this stream category habitat associations range from semi-aquatic, through first-order specialists, to river inhabitants. In feeding habits most species are omnivorous, but they range from being primarily detritivorous to algal grazers. The seasonal occurrence of the various life stages and voltinism patterns are also variable. Larvae show inter- and intraspecific segregation in the utilization of food resources and microhabitats in streams. Larval life-history patterns appear to be closely linked to seasonal regimes in stream discharge. A functional role for the various types of case architecture seen between and within species is examined. Manipulation of case architecture appears to enable efficient utilization of a changing seasonal pattern of microhabitats and food resources.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-07-16T23:35:07Z (GMT) No. of bitstreams: 1 WissemanRobertW1988.pdf: 1535453 bytes, checksum: 0c77c1f5d70c8f15f2545638450d0466 (MD5)
  • description.provenance : Made available in DSpace on 2013-07-16T23:35:07Z (GMT). No. of bitstreams: 1 WissemanRobertW1988.pdf: 1535453 bytes, checksum: 0c77c1f5d70c8f15f2545638450d0466 (MD5) Previous issue date: 1987-08-06
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-05-29T18:54:51Z (GMT) No. of bitstreams: 1 WissemanRobertW1988.pdf: 1535453 bytes, checksum: 0c77c1f5d70c8f15f2545638450d0466 (MD5)
  • description.provenance : Submitted by Kim Stowell (ksscannerosu@gmail.com) on 2013-05-29T00:16:18Z No. of bitstreams: 1 WissemanRobertW1988.pdf: 1535453 bytes, checksum: 0c77c1f5d70c8f15f2545638450d0466 (MD5)

Relationships

In Administrative Set:
Last modified: 08/23/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items