A survey of the effects of a beaver dam on Carp Creek.
dc.contributor.author | Cole, Scott D. | en_US |
dc.contributor.author | Reilly, Cheryl | en_US |
dc.contributor.author | Tracy, Chris | en_US |
dc.coverage.spatial | Carp Creek | en_US |
dc.date.accessioned | 2007-06-14T21:42:40Z | |
dc.date.available | 2007-06-14T21:42:40Z | |
dc.date.issued | 1991 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/54252 | |
dc.description.abstract | Beaver dams can be a major stress on stream ecosystems, and may have a significant affect on the ecology of the stream below them. Carp Creek, in Cheboygan county, Michigan, was studied to determine the effects of a beaver dam on its water chemistry, aquatic invertebrate diversity, and standing crop in and on sandy substrate. Measurements of pH, hardness, dissolved oxygen, temeprature, phosphates, nitrates, and chlorides were measured at sites 3/4 of a mile above the dam, and 1/4 of a mile below the dam. Differences (increases) were found below the dam only in nitrates and phosphates. Standing crop was estimated by measuring chlorophyll a in the water column. Chlorophyll a levels were higher downstream than up, indicating that there is a larger standing crop downstream. Ribbons were used as an artificial substrate to measure colonization by invertebrates as an indication oftheir density and diversity. More invertebrates--both numbers of organisms and diversity of taxa--were found downstream. Due to a small number of sample sites, we cannot differentiate between affects of the dam and affects of the river continuum. However, there were differences between sites above and below the dam in chemistries and invertebrate colonization. Further studies are needed to separate the affect of the am from that of the river continuum. | en_US |
dc.format.extent | 309265 bytes | |
dc.format.extent | 3144 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.relation.haspart | Graph | en_US |
dc.relation.haspart | Table of Numbers | en_US |
dc.subject | Streams | en_US |
dc.title | A survey of the effects of a beaver dam on Carp Creek. | en_US |
dc.type | Working Paper | en_US |
dc.subject.hlbsecondlevel | Natural Resource and Environment | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.contributor.affiliationum | Biological Station, University of Michigan | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/54252/1/2688.pdf | en_US |
dc.description.filedescription | Description of 2688.pdf : Access restricted to on-site users at the U-M Biological Station. | en_US |
dc.owningcollname | Biological Station, University of Michigan (UMBS) |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.