Results 91 to 100 of about 69,955 (264)

Field Guide to the Searobins (Prionotus and Bellator) in the Western North Atlantic [PDF]

open access: yes, 1992
Species identifications of Prionotus and Bellator are often difficult under field conditions owing to the large number of species and their overlapping taxonomic characteristics.
Grace, Mark   +2 more
core  

Exploring the exploration: implications of leaving or remaining at the natal site during the early stages of independence in a partially migratory bird

open access: yesIbis, EarlyView.
Despite being an important fraction of any animal population, juveniles are a severely understudied group. Juveniles often need to learn an array of skills that allow them to survive independently and do so while undertaking decisions that may impact their fitness, recruitment and survival, having therefore relevant demographic implications.
Manuela S. Rodrigues   +6 more
wiley   +1 more source

The Command and Control of Canadian and American Maritime Air Power in the Northwest Atlantic, 1941-1943 [PDF]

open access: yes, 2017
Operational, organizational, doctrinal, and cultural differences hampered effective command and control of Canadian and American maritime air power defending shipping against U-boats off the east coast during the Second World War.
Goette, Richard
core   +1 more source

How scientists can make the case for international cooperation in an age of diplomatic retrenchment

open access: yes
Conservation Biology, EarlyView.
James A. Dubovsky   +6 more
wiley   +1 more source

Expansion of invasive carabids across elevation and habitats on sub‐Antarctic South Georgia

open access: yesInsect Conservation and Diversity, EarlyView.
Two introduced carabid species have continued to expand their ranges on the sub‐Antarctic island of South Georgia over the past 10–15 years. The species have colonised inland valleys and are present across habitats but are more abundant in those with high vegetation cover. N‐mixture models revealed the optimal sampling method, intensity and habitat for
Pierre Tichit   +5 more
wiley   +1 more source

BLACK SEA: A GEOPOLITICAL AND ECONOMIC PERSPECTIVE OF THE EASTERN BORDER OF THE EURO-ATLANTIC STRUCTURES [PDF]

open access: yes
The Black Sea is a crossing space between worlds, different cultures and global interests. Political, economic and social shifts occurred over time within the states in the area, with major consequences in the game of power and in exercising control in ...
Daniela Popa
core  

The Role of Adult Fiddler Crab Environmental Acoustic Cues and Chemical Cues in Stimulating Molting of Field-Caught Megalopae [PDF]

open access: yes, 2017
In mid-Atlantic estuaries, three fiddler crab species, Uca pugilator, Uca pugnax and Uca minax co-occur, with their adults occupying different habitat types distinguished by salinity and sediment size.
Piniak, Wendy Dow   +3 more
core   +1 more source

Sequence capture analysis determines spatial and temporal stock contributions to a mixed coastal anadromous fishery

open access: yesJournal of Fish Biology, EarlyView.
Abstract Employing a citizen science model of partnerships with recreational and commercial fishers, we collected 5298 fin‐clip samples of striped bass Morone saxatilis over a 2‐year period and a broad geographic area that encompassed a majority of the species migratory range.
Kristopher J. Wojtusik   +3 more
wiley   +1 more source

Passion and Conflict: Medieval Islamic Views of the West

open access: yes, 2014
This article analyzes the representation of al-Andalus and North Africa in medieval Islamic maps from the eleventh to the fifteenth centuries. In contrast to other maps of the Mediterranean, which display a veneer of harmony and balance, the image of the
Pinto, Karen C.
core  

Hydrographic measurements in Jökulsárlón lagoon, Iceland [PDF]

open access: yes, 2013
Jökulsárlón lagoon is an enclosed lake bordering the retreating Breidamerkurjökull glacier which flows down from the Vatnajökull ice cap. As the glacier calves most of the ice it releases decays within the lake and the addition of the stored fresh water ...
Björnsson, Helgi   +3 more
core  

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