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Full-Text Articles in Life Sciences
Likely Locations Of Sea Turtle Stranding Mortality Using Experimentally- Calibrated, Time And Space-Specific Drift Models, Bianca S. Santos, Marjorie A.M. Friedrichs, Sarah A. Rose, Susan G. Barco, David M. Kaplan
Likely Locations Of Sea Turtle Stranding Mortality Using Experimentally- Calibrated, Time And Space-Specific Drift Models, Bianca S. Santos, Marjorie A.M. Friedrichs, Sarah A. Rose, Susan G. Barco, David M. Kaplan
VIMS Articles
Sea turtle stranding events provide an opportunity to study drivers of mortality, but causes of strandings are poorly understood. A general sea turtle carcass oceanographic drift model was developed to estimate likely mortality locations from coastal sea turtle stranding records. Key model advancements include realistic direct wind forcing on carcasses, temperature driven carcass decomposition and the development of mortality location predictions for individual strandings. We applied this model to 2009–2014 stranding events within the Chesapeake Bay, Virginia. Predicted origin of vessel strike strandings were compared to commercial vessel data, and potential hazardous turtle-vessel interactions were identified in the southeastern Bay …
Helping Farmers And Reducing Car Crashes: The Surprising Benefits Of Predators, Christopher O'Bryan, Eve Mcdonald-Madden, James Watson, Neil Carter
Helping Farmers And Reducing Car Crashes: The Surprising Benefits Of Predators, Christopher O'Bryan, Eve Mcdonald-Madden, James Watson, Neil Carter
Human-Environment Systems Research Center Faculty Publications and Presentations
Humans may be Earth’s apex predator, but the fleeting shadow of a vulture or the glimpse of a big cat can cause instinctive fear and disdain. But new evidence suggests that predators and scavengers are much more beneficial to humans than commonly believed, and that their loss may have greater consequences than we have imagined.
Effects Of Rearing Environment On Behavior Of Captive-Reared Whooping Cranes, Christy L. Sadowski, Glenn H. Olsen, M. Elsbeth Mcphee
Effects Of Rearing Environment On Behavior Of Captive-Reared Whooping Cranes, Christy L. Sadowski, Glenn H. Olsen, M. Elsbeth Mcphee
Proceedings of the North American Crane Workshop
Whooping cranes (Grus americana) are 1 of the most endangered bird species in North America. In 1999 the Whooping Crane Eastern Partnership was formed to establish a migratory population of whooping cranes in eastern North America. These efforts have been extremely successful in terms of adult survival but reproductive success post-release has been low. One hypothesis developed to explain such low reproductive success is that captive-rearing techniques fail to prepare the birds to be effective parents. Captive-reared whooping cranes at the U.S. Geological Survey, Patuxent Wildlife Research Center, Laurel, Maryland, are either reared by humans in crane costumes …
Mississippi Sandhill Crane Conservation Update 2014-2016, Scott G. Hereford, Angela J. Dedrickson
Mississippi Sandhill Crane Conservation Update 2014-2016, Scott G. Hereford, Angela J. Dedrickson
Proceedings of the North American Crane Workshop
To manage crane habitat during 2014-2016, 5,826 ha were treated with prescribed burns, 298 ha of woody vegetation were removed, 94 ha of invasive plants were chemically treated, and 8 ha of crops were planted. There were 247 predators removed. We acclimated and released 29 captive-reared juveniles. We began testing drones (unmanned aerial systems [UAS]), to locate nests. We detected an average of 34 nests per year with 6 fledglings each year. The December 2016 population was 129 cranes, up 9% from the previous 3 years.
Consequences Of Drift And Carcass Decomposition For Estimating Sea Turtle Mortality Hotspots, Bianca Santos, David M. Kaplan, Marjorie A.M. Friedrichs, Susan G. Barco, Katherine L. Mansfield, James P. Manning
Consequences Of Drift And Carcass Decomposition For Estimating Sea Turtle Mortality Hotspots, Bianca Santos, David M. Kaplan, Marjorie A.M. Friedrichs, Susan G. Barco, Katherine L. Mansfield, James P. Manning
VIMS Articles
Sea turtle strandings provide important mortality information, yet knowledge of turtle carcass at-sea drift and decomposition characteristics are needed to better understand and manage where these mortalities occur. We used empirical sea turtle carcass decomposition and drift experiments in the Chesapeake Bay, Virginia, USA to estimate probable carcass oceanic drift times and quantify the impact of direct wind forcing on carcass drift. Based on the time period during which free-floating turtle carcasses tethered nearshore were buoyant, we determined that oceanic drift duration of turtle carcasses was highly dependent on water temperature and varied from 2 to 15 days during typical …
A Dynamic Ocean Management Tool To Reduce Bycatch And Support Sustainable Fisheries, Elliot L. Hazen, Kylie L. Scales, Sara M. Maxwell, Dana K. Briscoe, Heather Welch, Steven J. Bograd, Helen Bailey, Scott R. Benson, Tomo Eguchi, Heidi Dewar
A Dynamic Ocean Management Tool To Reduce Bycatch And Support Sustainable Fisheries, Elliot L. Hazen, Kylie L. Scales, Sara M. Maxwell, Dana K. Briscoe, Heather Welch, Steven J. Bograd, Helen Bailey, Scott R. Benson, Tomo Eguchi, Heidi Dewar
Biological Sciences Faculty Publications
Seafood is anessential sourceofprotein formore than3billionpeopleworldwide, yet bycatchof threatened species in capture fisheries remains a major impediment to fisheries sustainability. Management measures designed to reduce bycatch often result in significant economic losses and even fisheries closures. Static spatial management approaches can also be rendered ineffective by environmental variability and climate change, as productive habitats shift and introduce new interactions between human activities and protected species. We introduce a new multispecies and dynamic approach that uses daily satellite data to track ocean features and aligns scales of management, species movement, and fisheries. To accomplish this, we create species distribution models for …