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Articles 1 - 8 of 8
Full-Text Articles in Life Sciences
Assessing The Occurrence Of Trichechus Manatus Latirostris In Mobile Bay, Alabama Using Edna, Elora Pierce
Assessing The Occurrence Of Trichechus Manatus Latirostris In Mobile Bay, Alabama Using Edna, Elora Pierce
Honors Theses
In the past several decades Florida manatees (Trichechus manatus latirostris) have begun to expand their summer range into the northern Gulf of Mexico. Because this is a recent occurrence, not much is known about their habitat use and distribution in this region. Citizen-sourced sighting data suggests that Florida manatees frequent subembayments of Mobile Bay, Alabama, reaching a sighting peak in August. To assess the occurrence of manatees in this area environmental DNA surveys were used from winter (February 19-20) and summer (August 21-22) of 2018. At each of the 21 sites ranging from the mouth of Mobile Bay, …
A Baseline Documentation Report For The Delta Wind Birds Sky Lake Nature Reserve, James Dubberly
A Baseline Documentation Report For The Delta Wind Birds Sky Lake Nature Reserve, James Dubberly
Honors Theses
The purpose of this baseline documentation is to conduct a report on our subject property and discuss the findings. A conservation easement is established by upholding a certain standard of a property’s current condition which makes a baseline documentation necessary for an easement to be enacted. Baseline documentation reports are used as a resource to monitor and enforce the legal agreements of the conservation easement. The subject property is currently owned by the Delta Wind Birds organization. In our scenario, this documentation report will serve to aid in the conversion of our subject property into a conservation easement in which …
Genetic Diversity & Connectivity Of Chasmanthium Latifolium (Poaceae) In Pennsylvania & The Effect On Conservation Status Of A Rare Species, Jonathan D. Hayes
Genetic Diversity & Connectivity Of Chasmanthium Latifolium (Poaceae) In Pennsylvania & The Effect On Conservation Status Of A Rare Species, Jonathan D. Hayes
Honors Theses
Chasmanthium latifolium (Michx.) Yates (Poaceae) is a loosely colonial, rhizomatous, perennial grass species that lives in riparian habitats, making it fittingly referred to as river oats. Native to the southern Midwest and the eastern half of the United States, C. latifolium reaches the northeastern edge of its range in Pennsylvania. Within Pennsylvania, eleven extant C. latifolium populations are found along four waterways: the Monongahela River, the Susquehanna River, and two tributaries to the Susquehanna River. This limited state distribution exhibits an east-west disjunct distribution, where western populations are largely separated from eastern populations with one centrally located population. Between the …
The Effects Of Phosphate On The Metamorphosis Of Larval Western Barred Tiger Salamanders (Ambystoma Mavortium), Lexy Polivanov
The Effects Of Phosphate On The Metamorphosis Of Larval Western Barred Tiger Salamanders (Ambystoma Mavortium), Lexy Polivanov
Honors Theses
This investigation will collect data to assist in determining if elevated aquatic phosphate levels affects the metamorphosis rate of larval western barred tiger salamanders (Ambystoma mavortium). Monoammonium phosphate fertilizers are being used on crops in Nebraska (NDA, 2017). This area lines up with the area the western barred tiger salamanders are disappearing from (Damme, 2018). Monoammonium phosphate is made up of nitrogen and phosphate. There have been several studies showing how nitrogen is harmful to amphibians such as this salamander (Griffis-Kyle, 2007) (Griffis-Kyle & Richtie, 2007), but there have not been many showing how phosphate affects amphibian’s metamorphosis …
Sibship Reconstruction For Inferring The Number Of Breeders Of Gulf Sturgeon In The Apalachicola River, Robbilyn Verges
Sibship Reconstruction For Inferring The Number Of Breeders Of Gulf Sturgeon In The Apalachicola River, Robbilyn Verges
Honors Theses
The Gulf sturgeon is an anadromous fish that inhabits the Gulf of Mexico and its neighboring river drainages. The species is currently listed as threatened due to habitat alterations and overfishing. In this study, we focused on the Apalachicola River in Florida, which has had several historic spawning locations of the sturgeon blocked by the Jim Woodruff Lock and Dam. Age-1 juvenile sturgeon from the year 2013 (n=31) and 2014 (n=131) were genotyped using fourteen microsatellite loci. Sibship reconstruction and parentage assignment was performed in order to determine the effective number of breeders (Nb) and the total number of spawning …
Genetic Estimates Of The Number Of Breeding Adults In Alligator Gar From The Choke Canyon Reservoir, Texas, E. Blayne Newsome
Genetic Estimates Of The Number Of Breeding Adults In Alligator Gar From The Choke Canyon Reservoir, Texas, E. Blayne Newsome
Honors Theses
Alligator gar were historically found across the coastal drainages of the Gulf of Mexico and up into the Mississippi River basin. However, their populations are experiencing decline in many portions of their range. Texas seems to have large populations of alligator gar, but state resource officers are seeking to better understand its biology so as to provide appropriate management recommendations to maintain the recreational fishery. In this study, I used genetic techniques to examine a cohort of 144 juvenile alligator gar collected in 2016 in the Choke Canyon Reservoir. By estimating the effective number of breeders and number of spawning …
Using Unmanned Aerial Vehicle Technology To Enhance Conservation Biology Research, Ann Briggs
Using Unmanned Aerial Vehicle Technology To Enhance Conservation Biology Research, Ann Briggs
Honors Theses
This study examined the most effective ways to utilize unmanned aerial vehicles (UAV) for wildlife conservation. More specifically, a UAV platform was created that can perform multiple data collection tasks by utilizing interchangeable modules. The prototype produced in this study has the capability to perform many tasks through the use of interchangeable modules. These tasks include, but are not limited to aerial surveys and collection of biological samples. This innovative technology will provide invaluable assistance to conservation efforts by reducing research and subject injury or death while maximizing efficiency. The modular design of the prototype was developed for retail to …
Old Father Hudson: The Three Stages Of Environmental Activism In The Hudson River Valley, Gregory P. Cannillo
Old Father Hudson: The Three Stages Of Environmental Activism In The Hudson River Valley, Gregory P. Cannillo
Honors Theses
Consequences of development have threatened the health of the Hudson River for decades. These have included the prospect of destroying scenic value of the Hudson River Valley with the a hydroelectric power plant on Storm King Mountain, as well as the pollution of the river itself by a variety of industrial sources. Since the 1960s, a long lineage of environmental activism in the Hudson River Valley has emerged to address those issues. The example of the Hudson River supplies an excellent case study of how environmental issues began to be addressed in the later half of the 20th century. I …