Coypu killed by gun. Combined with cold winters in 1962 to 1963, almost 40,500 coypu were removed from the population. Although coypu populations were greatly reduced after the 1962-1965 campaign ended, the population increased until another eradication campaign began in 1981. This campaign succeeded in fully eradicating coypu in Great Britain. The trapping areas were broken into 8 sectors leaving no area uncontrolled. The 24 Trappers were offered an incentive for early completion of the 10-year campaign. In 1989 coypu were assumed eradicated as only 3 males were found between 1987 and 1989. Nutria herbivory "is perhaps the least studied or
Norma (given name) "Norseman". The name has fluctuated in popularity over the past 100 years. It is still a very common name in the United States, but the name was most often given to babies in the 1930s, and is now seldom given. [[Category:Feminine given names]] Norma (given name) Norma is a female name. A single instance of the name "Norma" is recorded 1203, where it perhaps derives from the Latin word "norma", meaning "precept". The name's general usage seems to be subsequent to the 1831 debut of Vincenzo Bellini's opera "Norma" whose librettist Felice Romani borrowed the name (and the plot) from