Effects of quaking aspen density on the abundance and success of Lithocolletis salicifoliella in northern lower Michigan.

Show simple item record

dc.contributor.author Worsham, Aaron en_US
dc.coverage.spatial UMBS Station en_US
dc.date.accessioned 2007-06-14T22:25:05Z
dc.date.available 2007-06-14T22:25:05Z
dc.date.issued 1994 en_US
dc.identifier.uri http://hdl.handle.net/2027.42/54562
dc.description.abstract Stand density has either a negative or positive effect on the success of an herbivore. This study examines the effect of density of aspen on the abundance and the fate of blotch miner Lithocolletis salicifoliella. Blotch miner larvae are herbivorous and feed on the cortex of quaking aspen leaves. The abundance and fate of miners were observed on two 20x20 m plots of different aspen densities, high density (HD) and low density (LD). Abundance of miners was determined by counting the number of leaf miners on each leaf for 50 trees at each site. We also determined the fate of the miners on leaves picked haphazardly from HD (n=80) and LD (n=80). The miners were categorized as alive or dead and if dead then victims of predation, parasitism, or other causes of death ""other"". Significantly higher numbers of miners per leaf were found at the HD stand. There was no significant difference in survival frequency between the HD and LD sites. There was a difference in the type of death incurred by the miners at low vs. high density stands. Predation was higher than expected in the LD and parasitism was higher than expected in the HD stand. The higher abundance of the miners in the HD stand can be attributed to availability of food plant and lack of increased predation and parasitism. Therefore the miners in the HD stand are more successful. en_US
dc.format.extent 561925 bytes
dc.format.extent 3144 bytes
dc.format.mimetype application/pdf
dc.format.mimetype text/plain
dc.subject General Ecology en_US
dc.subject.classification Aspen en_US
dc.subject.other INSECTS en_US
dc.subject.other LITHOCOLLETIS en_US
dc.subject.other LEPIDOPTERA en_US
dc.subject.other MOTHS en_US
dc.subject.other HERBIVORY en_US
dc.subject.other DENSITY en_US
dc.subject.other SURVIVAL en_US
dc.subject.other MORTALITY en_US
dc.subject.other ABUNDANCE en_US
dc.subject.other DENSITY en_US
dc.subject.other ASPEN en_US
dc.subject.other POPULUS en_US
dc.title Effects of quaking aspen density on the abundance and success of Lithocolletis salicifoliella in northern lower Michigan. 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/2027.42/54562/1/3001.pdf en_US
dc.description.filedescription Description of 3001.pdf : Access restricted to on-site users at the U-M Biological Station. en_US
dc.owningcollname Biological Station, University of Michigan (UMBS)
 Show simple item record

This item appears in the following Collection(s)


Search Deep Blue

Advanced Search

Browse by

My Account

Information

Available Now


MLibrary logo