Addressing variability in estuarine food density for American black ducks

2016 ◽  
Vol 40 (3) ◽  
pp. 564-569 ◽  
Author(s):  
Marissa Goldstein ◽  
Christopher K. Williams ◽  
Paul. M. Castelli ◽  
Kenneth R. Duren
Keyword(s):  
2019 ◽  
Vol 10 (2) ◽  
pp. 492-499
Author(s):  
Benjamin S. Lewis ◽  
Michael W. Eichholz ◽  
Tina Yerkes ◽  
John M. Coluccy

Abstract Habitat restoration and enhancement objectives for wintering waterfowl are typically derived by a bioenergetics modeling approach. This approach has been developed as a planning tool to identify the amount of foraging habitat required to meet North American Waterfowl Management Plan population objectives. Our objective was to provide the energetic supply component of the bioenergetics model at an important wintering area for American black ducks Anas rubripes in the Atlantic Flyway, the Eastern Shore of Virginia. We estimated food availability among four main wetland cover types used by overwintering American black ducks: brackish water, freshwater, mudflat, and salt marsh. Mudflat (221 ± 50 kg/ha) and salt marsh (728 ± 175 kg/ha) had the highest amounts of available invertebrate food density, and freshwater (42 ± 9 kg/ha) had the highest amounts of available seed biomass. Our results suggest that seed density found in freshwater wetlands on the Eastern Shore of Virginia is considerably lower than densities found in inland freshwater cover types used by dabbling ducks. We also found that levels of invertebrate density found in Virginia mudflat and salt marsh are considerably lower than levels on Long Island, New York, and in southern New Jersey. Lower levels of food density compared with both more inland and northern wintering areas suggest that American black ducks wintering in Virginia are more likely to be limited by forage availability than American black ducks and other dabbling ducks wintering both inland and in the northern portion of the wintering range.


2020 ◽  
Vol 2 ◽  
pp. 19-25
Author(s):  
Mark C Anderson

Horror films such as White Zombie (1932) reveal viewers to themselves by narrating in the currency of audience anxiety. Such movies evoke fright because they recapitulate fear and trauma that audiences have already internalized or continue to experience, even if they are not aware of it. White Zombie’s particular tack conjures up an updated captivity narrative wherein a virginal white damsel is abducted by a savage Other. The shell of the captivity story, of course, is as old as America. In its earliest incarnation it featured American Indians in the role as savage Other, fiendishly imagined as having been desperate to get their clutches on white females and all that hey symbolized. In this way, it generated much of the emotional heat stoking Manifest Destiny, that is, American imperial conquest both of the continent and then, later, as in the case of Haiti, of the Caribbean Basin. White Zombie must of course be understood in the context of the American invasion and occupation of Haiti (1915-1934). As it revisits the terrain inhabited by the American black Other, it also speaks to the history of American slavery. The Other here is African-American, not surprisingly given the date and nature of American society of the day, typically imagined in wildly pejorative fashion in early American arts and culture. This essay explores White Zombie as a modified captivity narrative, pace Last of the Mohicans through John Ford’s The Searchers (1956), the Rambo trilogy (1982, 1985, 1988), the Taken trilogy (2008, 1012, 2014), even Mario and Luigi’s efforts to rescue Princess Peach from Bowser.


2000 ◽  
Author(s):  
Jerry R. Longcore ◽  
Daniel G. McAuley ◽  
Gary R. Hepp ◽  
Judith M. Rhymer

Zoo Biology ◽  
2020 ◽  
Author(s):  
Jennifer Vonk ◽  
Molly C. McGuire ◽  
Zoe Johnson‐Ulrich

Author(s):  
Melissa A. Napolitano ◽  
Cherise B. Harrington ◽  
Loral Patchen ◽  
Lindsey P. Ellis ◽  
Tony Ma ◽  
...  

The study aim was to implement and evaluate the feasibility of a culturally informed (“BeFAB”) app for African American/Black women to address postpartum weight. Women (n = 136; mean age = 27.8 ± 5.4; mean BMI = 32.5 ± 4.3) were recruited from postpartum units, and randomly assigned to receive BeFAB (n = 65) or usual care (n = 71) for 12 weeks. App content included didactic lessons delivered via a virtual coach, app-based messages, goal setting and tracking, and edutainment videos. Feasibility outcomes included recruitment, retention and engagement, and self-reported acceptability. Behavioral (i.e., diet, physical activity), psychosocial (i.e., stress, coping, support, self-efficacy) and weight outcomes were also examined. Recruitment goals were met, but attrition was high, with 56% retention at 12 weeks. Approximately half of participants accessed the app and set a goal ≥one time, but <10% reported achieving a nutrition or activity goal. Among study completers, ≥60% found the app content at least somewhat helpful. Within-group changes for BeFAB among completers were found for increased moderate-to-vigorous physical activity and decreased fruit/vegetable intake and weight. Findings indicate initial feasibility of recruiting postpartum women to participate in a digital healthy body weight program but limited use, reflecting low acceptability and challenges in engagement and retention. Future research is needed on strategies to engage and retain participants in postpartum interventions.


Author(s):  
Erika London Bocknek ◽  
Fantasy T. Lozada ◽  
Patricia Richardson ◽  
Deon Brown ◽  
Lucy McGoron ◽  
...  

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