RUFUS R. HUMPHREY(1892–1977)

Rufus Cole, 1913

Seroprevalence of antibodies to Toxoplasma gondii in the Pennsylvania bobcat (Lynx rufus rufus).

From 2000 to 2002 bobcat blood samples were collected, in association with the Pennsylvania Game Commission, during the recently reactivated bobcat hunting and trapping season. Sex, age, and county/township data were recorded for each animal. Blood was tested for antibodies to Toxoplasma gondii using the modified agglutination test. In the 2-yr study, 131 bobcat samples were collected in 14 Pen...

Cue learning by rufous hummingbirds (Selasphorus rufus).

The authors investigated the use by wild-living rufous hummingbirds (Selasphorus rufus) of flower color pattern and flower position for remembering rewarded flowers. Birds were presented with arrays of artificial flowers, a proportion of which was rewarded. Once the locations were learned by the birds, the array was moved 2 m, and flower color pattern and/or rewarded positions were manipulated....

Timing in Free-Living Rufous Hummingbirds, Selasphorus rufus

Animals organize their lives around circannual and circadian rhythms, but little is known of their use of much shorter intervals. In the laboratory, some animals can learn the specific duration (seconds or minutes) between periods of food access. It has been supposed that wild nectarivores, such as hummingbirds, might also learn short time intervals so as to avoid revisiting emptied flowers unt...

The Forgotten Leader in Agricultural Education: Rufus W. Stimson

In a recen t article in The Jou rna l o f t he Amer i can Assoc ia t i on o f Teacher Educa to rs i n Ag r i cu l t u re , t he 10 i nd i v idua l s who had con t r i bu ted the mos t t o t he deve lopmen t o f agricultural educa t i on we re i den t i f i ed (Camp & Crunk i l ton , 1985) . T h i s e f f o r t t o d o c u m e n t t h e h i s t o r i c a l l y impo r tan t peop le i n t he p ro ...