spermatocyte
spermatocyte A diploid cell in the testis that divides by meiosis to give rise to four
spermatids (see
spermatogenesis). A
primary spermatocyte develops from a
spermatogonium. Two
secondary spermatocytes result from the first meiotic division of a primary spermatocyte; each of these produces two spermatids after the second meiotic division.
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 "Albany Times Union (Albany, NY)")
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LOONS FACE TROUBLED FUTURE ACID RAIN, DEVELOPMENT OF LAKES THREATEN BREEDING.(Local)
Newspaper article from: Albany Times Union (Albany, NY); 3/13/1987; 700+ words
; ...of lakes supporting loons between the recent...suggest an expanding loon population, Miller...its own threat. One loon died after complications...fishing hooks and three loons died after swallowing...lucky to have as many loons as we do. Toxics...pose a threat to the loon because of ...
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Loons: the struggle to survive. (includes related article on behavior of loons) (Column)
Magazine article from: Sports Afield; 7/1/1993; ; 700+ words
; ...that as populations of loons increase, the competition...killing other pairs' loon chicks, the competition...as a leading cause of loon nest failures. Loons appear to be more tolerant...become more sensitive to loons. But just as loon populations appear to...
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Counting loons: citizen science in the Adirondacks: whether you are a birder, a Conservationist subscriber, or someone who enjoys a quiet paddle in the north country, you are likely familiar with the common loon, one of our most intriguing symbols of the northern wilds. Loons inhabit many Adirondack lakes and ponds, and are commonly seen on certain water bodies in the summer breeding season.
Magazine article from: New York State Conservationist; 6/1/2007; ; 700+ words
; ...participating in the 2007 annual loon census, please visit www.adkscience.org/loons or www.wcs.org/adirondackloons, or contact the Loon Program at (518) 891...efforts focusing on common loons and regional conservation...and their habitats. The Loon Program was initiated...
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 "The Post-Standard (Syracuse, NY)")
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LOONS TAKE OFF; ADIRONDACK POPULATION INCREASES, BUT WORRIES FOR THE FUTURE REMAIN.(News)
Newspaper article from: The Post-Standard (Syracuse, NY); 7/20/2008; 700+ words
; ...fish, the main food of loons, he said. Some scientists think the loon population crashed decades...Conservation Society who studies loons. The common loon is not endangered: There...population at 800 to 1,000 loons. Loon watchers say the birds...
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VOICES OF LOONS TO ECHO THROUGH CONVENTION HALL.(WILDLIFE EXPOSITION)
Newspaper article from: Albany Times Union (Albany, NY); 3/19/1987; 700+ words
; ...other side features haunting loon duets, loons in harmony with night-singing...caught in a thunderstorm, loons in concert with coyotes and other loon "melodies." If some of...concerned about the plight of the loon. "Loons are an ancient bird with...
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Loon mystery: as darkness gathered, the loons called like a beacon, lifting our spirits and guiding us across the lake.
Magazine article from: New York State Conservationist; 4/1/2007; ; 700+ words
; ...The call of the loon seems to define the...darkness gathered, the loons called like a beacon...to search for the loon's nest, and as...tripod let us view the loons from a distance...a future family. Loon nests are typically...high. This suits loons because they have...
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Loon Mountain, NH, Opens South Peak, New England's Newest Ski Terrain.
PR Newswire; 12/20/2007; 700+ words
; Loon Mountain Now Offers 'New Hampshire's Biggest...of fresh snow this week, New Hampshire's Loon Mountain officially opened its long-awaited...anticipated South Peak expansion this morning. Loon Mountain General Manager Rick Kelley was joined...
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ADIRONDACK LOONS SHOW HIGH MERCURY LEVELS.(CAPITAL REGION)(Correction notice)
Newspaper article from: Albany Times Union (Albany, NY); 6/30/2002; 700+ words
; ...Adirondack Cooperative Loon Program and the institute, scientists caught 96 loons -- goose-sized birds...that 30 percent of the loon population there, and 46 percent of loon eggs, are contaminated...study on contamination in loons in the Adirondacks studied...
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 "Star Tribune (Minneapolis, MN)")
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The Loon Man; Tom Strandness provides loons on his northern Minnesota lake with a safe haven, towing a small homemade floating platform to where they can build a nest and hatch their young.(SPORTS)
Newspaper article from: Star Tribune (Minneapolis, MN); 7/6/2003; ; 700+ words
; ...Tom Strandness helps loons get in the mood for ... well, loon love. It's not that...loon from a female loon. Strandness, 72, provides loons on his northern Minnesota...smile - has helped the loons produce 30 or more loon chicks over the past...
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Loon Energy Inc.: Settlement of Brunei Block L Disputes
Newspaper article from: CCNMatthews Newswire; 11/30/2007; 700+ words
; CALGARY, ALBERTA--(Marketwire - Nov. 30, 2007) - Loon Energy Inc. ("Loon") (TSX VENTURE:LEY) is pleased to advise that Loon and Loon Brunei Limited ("Loon Brunei") have entered into a settlement agreement...
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Loons
Encyclopedia entry from: The Gale Encyclopedia of Science
...small, red-throated loon, which can take off...the feather molt, loons cannot fly at all...sometimes while calling. Loons do not call during...The red-throated loon (or red-throated...and yellow-billed loons tend to replace each...The yellow-billed loon (white-billed diver...
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loon
Book article from: The Columbia Encyclopedia, Sixth Edition
...North American species include the common loon, or great northern diver ( Gavia immer...in. (80 cm) long; the red-throated loon ( G. stellata ); and the Arctic loon ( G. arctica ). Loons are classified in the phylum Chordata...
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Van Loon, Hendrik Willem
Book article from: The Oxford Companion to American Literature
Van Loon, Hendrik Willem (1882–1944...Man, the Miracle Maker (1928); Van Loon's Geography (1932); Ships & How...1943), an intimate biography; and Van Loon's Lives (1942) and Report to St. Peter...
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Hendrik Willem van Loon
Book article from: The Columbia Encyclopedia, Sixth Edition
Hendrik Willem van Loon , 1882-1944, American author and journalist, b. Rotterdam, Netherlands. He emigrated to the United States in 1903 and studied...
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loony
Book article from: The Oxford Pocket Dictionary of Current English
loon·y / ˈloōnē / inf. • n. ( pl. loon·ies ) a crazy or silly person...with a bunch of loonies. • adj. ( loon·i·er , loon·...
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