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Keeping Track Of Change: Developmental Insights Into The Ability To Represent Objects In Episodic Terms, Emily Yearling
Keeping Track Of Change: Developmental Insights Into The Ability To Represent Objects In Episodic Terms, Emily Yearling
Master's Theses
No abstract provided.
The Impact Of Relationships On Youth Developmental Outcomes In A Sport-Based Setting, Khalil Griffith
The Impact Of Relationships On Youth Developmental Outcomes In A Sport-Based Setting, Khalil Griffith
Master's Theses
No abstract provided.
A Tale Of Two Symbioses: Development And Maintenance Of Bacterial Partnerships With The Hawaiian Bobtail Squid, Sarah J. Mcanulty
A Tale Of Two Symbioses: Development And Maintenance Of Bacterial Partnerships With The Hawaiian Bobtail Squid, Sarah J. Mcanulty
Doctoral Dissertations
Beneficial associations with microorganisms are widespread in the animal kingdom. The Hawaiian bobtail squid (Euprymna scolopes) has two symbiotic organs with bacteria. The light organ symbiosis contains one species of bioluminescent bacteria, Vibrio fischeri, which produces light allowing the squid to camouflage itself against down-welling moonlight. The second organ, the accessory nidamental gland (ANG), is found only in female squid and houses a consortium of bacteria1. Bacteria from the ANG are deposited into the squid’s egg jelly coat 2, where they play a defensive role against biofouling 3 1,4.
This dissertation characterizes the …
Floral Preformation In The Warming Boreal Forest: The Effects Of Temperature On The Development Of Vaccinium Vitis-Idaea, Eileen Schaub
Floral Preformation In The Warming Boreal Forest: The Effects Of Temperature On The Development Of Vaccinium Vitis-Idaea, Eileen Schaub
Master's Theses
The boreal forest is experiencing climate change at twice the rate of other regions. Although changes in flowering phenology are a known consequence of warming temperatures, much is unknown about the effects of temperature anomalies on floral development. Boreal angiosperms preform flowers a year or more in advance and are consequently subject to varied environmental conditions across that time. My thesis examines the effects of temperature on floral development in order to understand how boreal taxa will respond to climate change.
Collection of Vaccinium vitis-idaeafrom natural populations in Fairbanks, Alaska was carried out over the growing seasons of 2017 …
The Effects Of Deepwater Horizon Oil, Dispersants, And Environmental Stressors On The Health Of Two Important Gulf Of Mexico Species, Eastern Oysters And Sheepshead Minnows, Lindsay Jasperse
Doctoral Dissertations
The explosion of the Deepwater Horizon oil platform on April 20, 2010 initiated the release of 640 million liters of oil into the Gulf of Mexico (GOM). In efforts to prevent the oiling of coastlines, response officials applied nearly 7.5 million liters of the oil dispersant Corexit. Despite these efforts, oil reached over 2100 km of coastline along the northern GOM, including estuaries that serve as important habitats and nurseries. These estuaries are dynamic ecosystems, with constant fluctuations in salinity and dissolved oxygen. While it is well-established that oil is toxic to marine species, gaps remain in the understanding of …
The Biomechanics And Evolution Of Air-Breathing In Anuran Tadpoles, Jackson Phillips
The Biomechanics And Evolution Of Air-Breathing In Anuran Tadpoles, Jackson Phillips
Master's Theses
The fact that tadpoles breathe air is an oft over-looked aspect of anuran biology. The air-breathing behavior of small tadpoles is particularly interesting, as they are not large enough to overcome the physical constraints imposed by surface tension. Instead of breaching the water’s surface to access air, small tadpoles perform “bubble-sucking”, a breathing mode that circumvents the need to breach the water’s surface tension. In my first chapter, I find that Hyla versicolor (Anura: Hylidae) tadpoles are bubble-sucking specialists that perform both the typical, single bubble-suck seen in other tadpole species as well as an undescribed, double bubble-suck. A combination …
The Developmental Evolution Of The Novel Treehopper Helmet, Cera Fisher
The Developmental Evolution Of The Novel Treehopper Helmet, Cera Fisher
Doctoral Dissertations
Understanding morphological diversity requires understanding the developmental basis for the origin of novelty. In my dissertation, I use the treehopper helmet to investigate the origin of novelty. This 3-dimensional outgrowth of the prothoracic dorsal body wall has been molded by natural selection into myriad elaborate forms and differentiates treehoppers from their closest relatives. The helmet is hypothesized to have originated by modulation of the ancestral body wall patterning network, or alternatively by co-option of the wing or leg patterning network. I tested these hypotheses using a comparative approach in three species from the order Hemiptera: Entylia carinata, an emerging …