...The prices have since fallen, and the slave-trade decreased, on the plain principle of political economy, that the demand regulates the supply... 
Horatio Bridge 「Journal of an African Cruiser」
...Mackaystated that this bird and the golden plover had decreased 90 percent in fifty years, and in the last ten years of that period 90 percent of the remainder had gone...
William T. Hornaday 「Our Vanishing Wild Life」
...Breaths for the first three hours were steady at three or four per minute but then decreased to two or three per minute...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Bears have decreased in numbers, andhave become very shy and difficult to get at;they were never plentiful...
Various 「Hunting in Many Lands」
...Activity increased as the percentage of ground covered by snow increased and as the abundance of food decreased...
Donald W. Janes 「Home Range and Movements of the Eastern Cottontail in Kansas」
...It is anonfebrile condition, in which the appetite is not decreased and the milksecretion is kept up...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The amount offish bones, crayfish, and snail shells in the pellets decreased duringthis period...
Dwight Platt 「Food of the Crow, Corvus brachyrhynchos Brehm, in South-central Kansas」
...7 per cent) in October, justafter sowing, it steadily decreased, varying from 6...
Dwight Platt 「Food of the Crow, Corvus brachyrhynchos Brehm, in South-central Kansas」
...Hence the logical conclusion: those dimensions must be lessened; the abdomen, the head and, above all, the wings must be chopped off; and the resistance will be decreased...
J. Henri Fabre Alexander Teixeira de Mattos 「The Mason-bees」
...Both breeding and molting are sources of considerable stress, and thedelay of the peak of molting activity until November when breedingactivity has decreased seems of benefit to the mice...
Sydney Anderson 「Mammals of Mesa Verde National Park, Colorado」
...Snow penetrability then decreased through Februaryand March to a point where a walkingdeer would sink in approximately 0...
L. David Mech 「Ecological Studies of the Timber Wolf in Northeastern Minnesota」
...Both species decreased in abundance during a period of continuousflow (1957 to 1959) following drought at the upper Neosho station...
James Everett Deacon 「Fish Populations, Following a Drought, in the Neosho and Marais des Cygnes Rivers of Kansas」
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