Species Accounts: Pied-billed Grebe - Sooty Tern

2019 ◽  
pp. 35-250
Keyword(s):  
The Condor ◽  
1976 ◽  
Vol 78 (1) ◽  
pp. 128-129 ◽  
Author(s):  
William Y. Brown
Keyword(s):  

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3287 ◽  
Author(s):  
Ryan M. Huang ◽  
Oron L. Bass Jr ◽  
Stuart L. Pimm

Migratory seabirds face threats from climate change and a variety of anthropogenic disturbances. Although most seabird research has focused on the ecology of individuals at the colony, technological advances now allow researchers to track seabird movements at sea and during migration. We combined telemetry data on Onychoprion fuscatus (sooty terns) with a long-term capture-mark-recapture dataset from the Dry Tortugas National Park to map the movements at sea for this species, calculate estimates of mortality, and investigate the impact of hurricanes on a migratory seabird. Included in the latter analysis is information on the locations of recovered bands from deceased individuals wrecked by tropical storms. We present the first known map of sooty tern migration in the Atlantic Ocean. Our results indicate that the birds had minor overlaps with areas affected by the major 2010 oil spill and a major shrimp fishery. Indices of hurricane strength and occurrence are positively correlated with annual mortality and indices of numbers of wrecked birds. As climate change may lead to an increase in severity and frequency of major hurricanes, this may pose a long-term problem for this colony.


2021 ◽  
Vol 11 (21) ◽  
pp. 10191
Author(s):  
Hoda Abd El-Sattar ◽  
Salah Kamel ◽  
Hamdy Sultan ◽  
Marcos Tostado-Véliz ◽  
Ali M. Eltamaly ◽  
...  

This paper presents an analysis and optimization of an isolated hybrid renewable power system to operate in the Alrashda village in the Dakhla Oasis, which is situated in the New Valley Governorate in Egypt. The proposed hybrid system is designed to integrate a biomass system with a photovoltaic (PV), wind turbine (WT) and battery storage system (Bat). Four different cases are proposed and compared for analyzing and optimizing. The first case is a configuration of PV and WT with a biomass system and battery bank. The second case is the integration of PV with a biomass system and battery bank. The third case is WT integrated with biomass and a battery bank, and the fourth case is a conventional PV, WT, and battery bank as the main storage unit. The optimization is designed to reduce component oversizing and ensure the dependable control of power supplies with the objective function of reducing the levelized cost of energy and loss of power supply probability. Four optimization algorithms, namely Heap-based optimizer (HBO), Franklin’s and Coulomb’s algorithm (CFA), the Sooty Tern Optimization Algorithm (STOA), and Grey Wolf Optimizer (GWO) are utilized and compared with each other to ensure that all load demand is met at the lowest energy cost (COE) for the proposed hybrid system. The obtained results revealed that the HBO has achieved the best optimal solution for the suggested hybrid system for case one and two, with the minimum COE 0.121171 and 0.1311804 $/kWh, respectively, and with net present cost () of $3,559,143 and $3,853,160, respectively. Conversely, STOA has achieved the best optimal solution for case three and four, with a COE of 0.105673 and 0.332497 $/kWh, and an NPC of $3,103,938 and $9,766,441, respectively.


The Auk ◽  
1941 ◽  
Vol 58 (2) ◽  
pp. 258-259
Author(s):  
Dayton Stoner
Keyword(s):  
New York ◽  

2002 ◽  
Author(s):  
Elizabeth A. Schreiber ◽  
C. J. Feare ◽  
Brian A. Harrington ◽  
B. G. Murray ◽  
W. B. Robertson ◽  
...  

1994 ◽  
Vol 45 (3) ◽  
pp. 445 ◽  
Author(s):  
SJM Blaber ◽  
DA Milton

The distribution and abundance of seabirds was documented at sea in the Gulf of Carpentaria in December 1990 and November 1991. Of the 17 species recorded, only the crested tern, least frigatebird, brown booby and streaked shearwater were widespread. The first three species were seen mainly in coastal waters; streaked shearwaters were seen only in the central north-western gulf. The common tern, roseate tern, little tern, sooty tern, black-naped tern, common noddy and greater frigatebird were either sparsely distributed or uncommon. The list includes five terrestrial species. The distribution of the seabirds is discussed in relation to proximity to breeding and roosting sites, food availability, the effects of discards from prawn trawling, and water currents.


1958 ◽  
Vol 58 (1) ◽  
pp. 63-64 ◽  
Author(s):  
A. R. Sefton

The Auk ◽  
1984 ◽  
Vol 101 (2) ◽  
pp. 288-294 ◽  
Author(s):  
Elizabeth N. Flint ◽  
Kenneth A. Nagy

Abstract The CO2 production of free-ranging Sooty Terns (Sterna fuscata) was measured using doubly labeled water (HTO-18). Metabolic rate during flight was determined to be 4.8 times standard metabolic rate (SMR). This value is much lower than estimates of flight metabolism predicted from previously published equations. Observations of these birds at sea indicate that flapping flight predominated at the windspeeds (0-5 m/s) that prevailed during our measurement periods, so factors other than gliding must account for the comparatively low flight metabolism we measured. Sooty Tern flight metabolism is similar to that of some other birds, such as swallows and swifts, that also have high aspect ratios and low wing loadings.


The Auk ◽  
1929 ◽  
Vol 46 (1) ◽  
pp. 102-102
Keyword(s):  

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