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- Title
- Diet-based defensive secretions in harvestmen.
- Creator
- Whitaker, Graham., Harriet L. Wilkes Honors College
- Abstract/Description
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Harvestmen are known to secrete a wide range of defensive chemicals in order to protect themselves from predators. An earlier study examined the phylogenetic pattern of defensive secretions produced by 22 species of harvestmen. This research, however, assumed that there is a genetic link between the defensive secretions. I wished to determine whether harvestmen defensive secretions may be diet-based by introducing several irritants into their food and then testing their secretions in the same...
Show moreHarvestmen are known to secrete a wide range of defensive chemicals in order to protect themselves from predators. An earlier study examined the phylogenetic pattern of defensive secretions produced by 22 species of harvestmen. This research, however, assumed that there is a genetic link between the defensive secretions. I wished to determine whether harvestmen defensive secretions may be diet-based by introducing several irritants into their food and then testing their secretions in the same manner. I performed a GC-MS analysis on 13 samples from the Vonones sp. But I found no initial GC-MS readings that showed this species of harvestmen to contain any irritants in their secretions. The absence of irritants does not allow any evaluation of whether harvestmen secretions are genetically or dietarily based.
Show less - Date Issued
- 2007
- PURL
- http://purl.flvc.org/FAU/11596
- Subject Headings
- Opiliones, Identification, Arachnida, Physiology, Predation (Biology)
- Format
- Document (PDF)
- Title
- Fishes of Savannas Preserve State Park.
- Creator
- McKee, Kristy., Harriet L. Wilkes Honors College
- Abstract/Description
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Freshwater marshes are a harsh wetland ecosystem classified by seasonal water level fluctuation. Dry down periods are common in some marshes, making life difficult for fish and other aquatic organisms. The goal of this study was to compile an updated species list of fishes inhabiting the freshwater marsh system within Savannas Preserve State Park. Twenty-three fish species were collected between August 2005 and May 2007. This survey, along with past collections, and the current species list...
Show moreFreshwater marshes are a harsh wetland ecosystem classified by seasonal water level fluctuation. Dry down periods are common in some marshes, making life difficult for fish and other aquatic organisms. The goal of this study was to compile an updated species list of fishes inhabiting the freshwater marsh system within Savannas Preserve State Park. Twenty-three fish species were collected between August 2005 and May 2007. This survey, along with past collections, and the current species list in the park's management plan were used to make a new proposed species list. Three species of nonnative fishes were observed during the study, the first report of exotic fishes in the park. It is believed that abnormally high water levels for an extended period may have allowed the water in neighboring canals to connect to the marsh system and, as a result, new species were able become introduced in the park.
Show less - Date Issued
- 2007
- PURL
- http://purl.flvc.org/FAU/40970
- Subject Headings
- Savannas Preserve State Park (Fla.), Ecology, Fishes, Identification, Population biology
- Format
- Document (PDF)
- Title
- Fishes of the Abacoa Greenway.
- Creator
- Snow, Tiffany., Harriet L. Wilkes Honors College
- Abstract/Description
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The Abacoa Greenway is a manmade artificial water system constructed in the late 1990s, and home to an array of aquatic flora and fauna. There has been no previous survey of the species residing in this area; therefore this will be a foundation for future samplings to compare to. The goal of this study was to compile a species list of fishes inhabiting the freshwater systems of the Abacoa Greenway Ranges IV and V, as well as a classification of exotic and native species inhabiting the area. A...
Show moreThe Abacoa Greenway is a manmade artificial water system constructed in the late 1990s, and home to an array of aquatic flora and fauna. There has been no previous survey of the species residing in this area; therefore this will be a foundation for future samplings to compare to. The goal of this study was to compile a species list of fishes inhabiting the freshwater systems of the Abacoa Greenway Ranges IV and V, as well as a classification of exotic and native species inhabiting the area. A total of 11 species have been collected and identified between March 2007 and May 2008. Of these three species have been classified as exotic or introduced and the other eight as native species naturally existing in Florida.
Show less - Date Issued
- 2008
- PURL
- http://purl.flvc.org/FAU/77693
- Subject Headings
- Greenways, Fishes, Identification, Population biology
- Format
- Document (PDF)
- Title
- House ants of Karachi, Pakistan.
- Creator
- Haji, Malik., Harriet L. Wilkes Honors College
- Abstract/Description
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Ants are ubiquitous and ecologically important, yet little is known of ants within Pakistan. I studied ants collected from houses and apartments in Karachi, Pakistan to determine which ants are common indoor ants. Ants were attracted by spilling syrups and sodas on the floor which were left overnight. The following morning the ants were collected using an aspirator. A total of eleven species were found. Of these eight were well-known pest ants with worldwide distributions: Paratrechina...
Show moreAnts are ubiquitous and ecologically important, yet little is known of ants within Pakistan. I studied ants collected from houses and apartments in Karachi, Pakistan to determine which ants are common indoor ants. Ants were attracted by spilling syrups and sodas on the floor which were left overnight. The following morning the ants were collected using an aspirator. A total of eleven species were found. Of these eight were well-known pest ants with worldwide distributions: Paratrechina longicornis, Tetramorium simillimum, Monomorium pharaonis, Monomorium subopacum, Monomorium destructor, Tapinoma melanocephalum, Pheidole megacephala, and Tetramorium bicarinatum. Three others, Camponotus sp., Pheidole sp., and Solenopsis sp., not identified to species were probably native species. Paratrechina longicornis and M. subopacum were the two most dominant species that were found in the highest abundance.
Show less - Date Issued
- 2008
- PURL
- http://purl.flvc.org/FAU/77670
- Subject Headings
- Insects, Identification, Ants, Research, Self-organizing systems
- Format
- Document (PDF)
- Title
- Manatee census of the Harbor Branch channel utilizing photo-identification techniques.
- Creator
- Nys, Lauren., Harriet L. Wilkes Honors College
- Abstract/Description
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Anecdotal accounts of manatees congregating in the Harbor Branch channel have been reported by staff scientists at the Harbor Branch Oceanographic Institute for over three decades. The main goals of this study were to identify individual manatees using photo-identification techniques and collect baseline data on manatee abundance and environmental parameters. During the primary study period (summer 2009), I identified 31 distinct manatees at Harbor Branch. Four manatees were matched with the...
Show moreAnecdotal accounts of manatees congregating in the Harbor Branch channel have been reported by staff scientists at the Harbor Branch Oceanographic Institute for over three decades. The main goals of this study were to identify individual manatees using photo-identification techniques and collect baseline data on manatee abundance and environmental parameters. During the primary study period (summer 2009), I identified 31 distinct manatees at Harbor Branch. Four manatees were matched with the statewide Manatee Individual Photo-identification System database. I observed the highest abundance of manatees in the small boats marina, suggesting that this location is preferential manatee habitat. Water temperature at the two deepest depths measured (0.6 m and 1.50 m) were the only two significantly different environmental parameters influencing the number of manatees present. The results of this study provide evidence for the Harbor Branch channel as an important manatee habitat.
Show less - Date Issued
- 2010
- PURL
- http://purl.flvc.org/FAU/3335459
- Subject Headings
- Manatees, Monitoring, Manatees, Habitat, Manatees, Identification
- Format
- Document (PDF)