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Articles 1 - 7 of 7
Full-Text Articles in Animal Sciences
Exposure Of Bald Eagle Nestlings To Contaminants On National Park Service Lands Within The Chesapeake Bay, Interim Report: Fall 2017, B. D. Watts, B. J. Paxton, M. L. Pitts
Exposure Of Bald Eagle Nestlings To Contaminants On National Park Service Lands Within The Chesapeake Bay, Interim Report: Fall 2017, B. D. Watts, B. J. Paxton, M. L. Pitts
CCB Technical Reports
No abstract provided.
Mapping Bald Eagle Activity Shadows Around Communal Roosts, B. D. Watts, Courtney Turrin
Mapping Bald Eagle Activity Shadows Around Communal Roosts, B. D. Watts, Courtney Turrin
Arts & Sciences Articles
We assessed diurnal activity patterns associated with communal roosts (n = 26) by tracking nonbreeding bald eagles (Haliaeetus leucocephalus; n = 58) within the upper Chesapeake Bay, USA, 2008-2013. We used daytime locations (n = 54,165) to map activity shadows (using home range analytics, 90% kernel) around communal roosts, to evaluate the spatial structure and to delineate diurnal activity centers. We overlaid a range (100-3,200 m) of buffers around the perimeter of each roost to estimate the benefits of management scenarios in extending protection to daytime activities. Activity shadows around roosts varied from 1.5 km(2) to 116 km(2) ((x) over …
Age, Growth And Reproduction Of Western North Atlantic Butterfly Rays (Myliobatiformes: Gymnuridae), With The Description Of Two New Species, Kristene Teal Parsons
Age, Growth And Reproduction Of Western North Atlantic Butterfly Rays (Myliobatiformes: Gymnuridae), With The Description Of Two New Species, Kristene Teal Parsons
Dissertations, Theses, and Masters Projects
Batoid fishes are among the most threatened and least understood chondrichthyan species worldwide due to their large body size, conservative life-history characteristics, and predominantly coastal distributions where fishing and habitat degradation threaten the stability of populations. A lack of empirical life history data is widespread across batoid taxa — nearly half of all species are considered data deficient, thus hindering species assessments and the development of effective management strategies. Furthermore, many batoid taxa are in need of taxonomic re-examination. Increasing our understanding of life history traits that determine population productivity, such as age and size at maturity, growth rate, and …
Counting Blue Crabs In The Bay! Subjects: Life Science / Biology, Environmental Science, Marine / Ocean Science Grade Level: 6-8, Bruce W. Pfirrmann
Counting Blue Crabs In The Bay! Subjects: Life Science / Biology, Environmental Science, Marine / Ocean Science Grade Level: 6-8, Bruce W. Pfirrmann
Reports
This lesson plan invites students and teachers to ponder the question: How many blue crabs are in the Chesapeake Bay, and where do we find them? Through hands-on activities and the use of real data, students will discover the excitement and grapple with the challenges faced by marine scientists as they try to quantify the use of different habitats by marine animals and estimate the size of marine animal populations.
Microscopic Hitchhiking: Taking A Trip With Microbes And Plankton. Subjects: Life Science / Biology, Environmental Science, Marine / Ocean Science Grades: 6-8, Lucia Safi
Reports
This lesson plan develops concepts on food webs and ecological relationships, giving special attention to microorganisms and Chesapeake Bay species and dynamics. Students will conduct investigations, generate their own data and find out more about species they constantly see!
Marine Parasites And Fish: How To Sample And Analyze. Subjects: Life Science / Biology, Environmental Science, Marine / Ocean Science Grades: 6-8, Zoemma Warshafsky
Marine Parasites And Fish: How To Sample And Analyze. Subjects: Life Science / Biology, Environmental Science, Marine / Ocean Science Grades: 6-8, Zoemma Warshafsky
Reports
This lesson plan provides a hands-on way for students to investigate the impacts of an invasive parasitic nematode which has been targeting the American eel. Students will first “infect” pipe cleaner eels with parasitic nematodes (beads), which will then be used to simulate real-life research efforts through collecting multiple random samples of “eels” and counting the amount of parasites. They will then use this data to calculate prevalence, mean intensity, and mean abundance.
Digesting Data - Subjects: Life Science / Biology Grade Level: 6-8, Amanda Bromilow
Digesting Data - Subjects: Life Science / Biology Grade Level: 6-8, Amanda Bromilow
Reports
This lesson plan encourages students to become scientific investigators to determine which fish species are important predators of juvenile blue crabs in Chesapeake Bay. Students will have the opportunity to practice using triple-beam balances and draw conclusions based on their data.