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dc.creatorAlvarez, Javier
dc.date.available2011-02-18T21:42:45Z
dc.date.issued1991-05
dc.identifier.urihttp://hdl.handle.net/2346/16765en_US
dc.description.abstractLand snails were collected from quadrats positioned outside and inside treefall gaps in the Tabonuco Forest of Puerto Rico to determine the effects of treefall gaps on the species abundance, richness, evenness, diversity, and distribution of land snails during the dry and wet seasons. This study also determined the importance of atmospheric and litter temperature, relative humidity, litter and soil moisture, slope, and substrate type in determining the spatial distribution of the land snails. Only two species, H. tridens and £.. caracolla. respond to patches created by treefalls. In particular, the abundance of R. tridens was higher in gaps, whereas that of £.. caracolla was higher in the surrounding undisturbed forest. Such differences in habitat use by ti- tridens and £.. caracolla may be attributed to differences in diet and body water loss rates. However, patchiness does not have a pervasive influence at the community level. In general, treefall gaps have little effect on the richness, evenness, diversity, and distribution of land snails of the Tabonuco Forest.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherTexas Tech Universityen_US
dc.subjectSnailsen_US
dc.subjectEnvironmental impact analysisen_US
dc.titleEffects of treefall gaps on a tropical land snail community
dc.typeThesis
thesis.degree.nameM.S.
thesis.degree.levelMasters
thesis.degree.disciplineZoology
thesis.degree.grantorTexas Tech University
thesis.degree.departmentZoology
thesis.degree.departmentBiological Sciences
dc.degree.departmentZoologyen_US
dc.rights.availabilityUnrestricted.


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