Diurnal habitat use of American woodcock wintering along the Atlantic coast

1994 ◽  
Vol 72 (11) ◽  
pp. 1945-1950 ◽  
Author(s):  
David G. Krementz ◽  
Grey W. Pendleton

The long-term decline of the American woodcock (Scolopax minor) population led us to investigate diurnal habitat use with radiotelemetry on the wintering grounds. Sites included the coastal plain of Georgia (1989–1991), South Carolina (1988–1989), and Virginia (1991–1992). Habitat use was not explained by age, sex, or date during the winter, but individuals used habitat differently (P < 0.05). Only shrubland was preferred at all sites in all years. Pine plantations of various ages were used according to availability, but usually less often than expected, while bottomland hardwoods and pine–hardwoods were used more often than expected.

2012 ◽  
Vol 76 (5) ◽  
pp. 1036-1046 ◽  
Author(s):  
Cathryn H. Greenberg ◽  
Douglas J. Levey ◽  
Charles Kwit ◽  
John P. Mccarty ◽  
Scott F. Pearson ◽  
...  

2011 ◽  
Vol 4 (1-2) ◽  
pp. 67-76 ◽  
Author(s):  
W. H. Conner ◽  
B. Song ◽  
T. M. Williams ◽  
J. T. Vernon
Keyword(s):  

2020 ◽  
Vol 639 ◽  
pp. 169-183
Author(s):  
P Matich ◽  
BA Strickland ◽  
MR Heithaus

Chronic environmental change threatens biodiversity, but acute disturbance events present more rapid and immediate threats. In 2010, a cold snap across south Florida had wide-ranging impacts, including negative effects on recreational fisheries, agriculture, and ecological communities. Here, we use acoustic telemetry and historical longline monitoring to assess the long-term implications of this event on juvenile bull sharks Carcharhinus leucas in the Florida Everglades. Despite the loss of virtually all individuals (ca. 90%) within the Shark River Estuary during the cold snap, the catch per unit effort (CPUE) of age 0 sharks on longlines recovered through recruitment within 6-8 mo of the event. Acoustic telemetry revealed that habitat use patterns of age 0-2 sharks reached an equilibrium in 4-6 yr. In contrast, the CPUE and habitat use of age 3 sharks required 5-7 yr to resemble pre-cold snap patterns. Environmental conditions and predation risk returned to previous levels within 1 yr of the cold snap, but abundances of some prey species remained depressed for several years. Reduced prey availability may have altered the profitability of some microhabitats after the cold snap, leading to more rapid ontogenetic shifts to marine waters among sharks for several years. Accelerated ontogenetic shifts coupled with inter-individual behavioral variability of bull sharks likely led to a slower recovery rate than predicted based on overall shark CPUE. While intrinsic variation driven by stochasticity in dynamic ecosystems may increase the resistance of species to chronic and acute disturbance, it may also increase recovery time in filling the diversity of niches occupied prior to disturbance if resistive capacity is exceeded.


2020 ◽  
Author(s):  
Jessica Kasten ◽  
Elizabeth Lewis ◽  
Sari Lelchook ◽  
Lynn Feinberg ◽  
Edem Hado

1985 ◽  
Vol 14 (3) ◽  
pp. 329-332 ◽  
Author(s):  
D. C. Mc Clurkin ◽  
P. D. Duffy ◽  
S. J. Ursic ◽  
N. S. Nelson

2013 ◽  
Author(s):  
Daniel G. McAuley ◽  
Daniel M. Keppie ◽  
R. Montague Whiting Jr.

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