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Articles 1 - 4 of 4
Full-Text Articles in Entire DC Network
Early Limb Patterning In The Direct‐Developing Salamander Plethodon Cinereus Revealed By Sox9 And Col2a1, Ryan R. Kerney, James Hanken, David C. Blackburn
Early Limb Patterning In The Direct‐Developing Salamander Plethodon Cinereus Revealed By Sox9 And Col2a1, Ryan R. Kerney, James Hanken, David C. Blackburn
Biology Faculty Publications
Direct‐developing amphibians form limbs during early embryonic stages, as opposed to the later, often postembryonic limb formation of metamorphosing species. Limb patterning is dramatically altered in direct‐developing frogs, but little attention has been given to direct‐developing salamanders. We use expression patterns of two genes, sox9and col2a1, to assess skeletal patterning during embryonic limb development in the direct‐developing salamander Plethodon cinereus. Limb patterning in P. cinereus partially resembles that described in other urodele species, with early formation of digit II and a generally anterior‐to‐posterior formation of preaxial digits. Unlike other salamanders described to date, differentiation of preaxial zeugopodial …
Getting That Sinking Feeling: Analysis And Impacts Of Sea Level Rise On Three National Parks Along The East Coast, Usa, Julia K. Deros, Amanda L. Thibault, Amy B. True
Getting That Sinking Feeling: Analysis And Impacts Of Sea Level Rise On Three National Parks Along The East Coast, Usa, Julia K. Deros, Amanda L. Thibault, Amy B. True
Student Publications
Due to global climate change, sea level rise (SLR) has become a threat for future generations, but the extent of this danger is unknown. To help understand the possible effects of SLR on the east coast of the United States, we studied three national parks: Acadia National Park (ACAD), Assateague Island National Seashore (ASIS) and Everglades National Park (EVER). We predicted that ACAD would be less affected by SLR than ASIS and EVER due to the construction of its beach profile. By measuring the beach profile, we found that Sand Beach in ACAD was reflective with an average slope of …
Long Live The King? A Gis Analysis Of Climate Change’S Impact On The Future Wintering Range And Economy Of The Monarch Butterfly (Danaus Plexippus) In Mexico, Megan E. Zagorski
Long Live The King? A Gis Analysis Of Climate Change’S Impact On The Future Wintering Range And Economy Of The Monarch Butterfly (Danaus Plexippus) In Mexico, Megan E. Zagorski
Student Publications
The annual migration of the monarch butterfly (Danaus plexippus) is a natural phenomenon widely integrated into the popular and social imagination of North America. However, this migratory population has recently declined. I investigated the threat of climate change on the future distribution of suitable monarch habitat, using ArcGIS to create a model of current and future monarch habitat. I also analyzed municipal data for 5 communities in Mexico State in an examination of the social aspects of the Monarch Butterfly Biosphere Reserve [MBBR]. According to my model, an estimated 38.6% to 69.8% of current monarch habitat may be lost within …
Sam Van Aken: New Edens, Shannon Egan
Sam Van Aken: New Edens, Shannon Egan
Schmucker Art Catalogs
Hybridized fruit trees, grafted orchids on shiny, reflective aluminum pedestals, fluorescent lights placed vertically on stands, and sheets of silver Mylar create a lush and somewhat disorienting space in contemporary artist Sam Van Aken’s most recent body of work New Edens. Van Aken makes Gettysburg College’s Schmucker Art Gallery into a kind of fantastical and futuristic winter garden. Without daylight and despite the cool fall weather of the Northeast, the dozen trees in the gallery are leafy and green, some even bearing fruit. Peach, plum, cherry, nectarine and apricot branches emerge from a single trunk and grow productively alongside their …