12 books found
by North Carolina Agricultural Experiment Station
1888
by North Carolina State College. Agricultural Experiment Station
1929
by National Research Council, Division on Earth and Life Studies, Board on Agriculture and Natural Resources, Board on Life Sciences, Committee on the Status of Pollinators in North America
2007 · National Academies Press
Pollinators-insects, birds, bats, and other animals that carry pollen from the male to the female parts of flowers for plant reproduction-are an essential part of natural and agricultural ecosystems throughout North America. For example, most fruit, vegetable, and seed crops and some crops that provide fiber, drugs, and fuel depend on animals for pollination. This report provides evidence for the decline of some pollinator species in North America, including America's most important managed pollinator, the honey bee, as well as some butterflies, bats, and hummingbirds. For most managed and wild pollinator species, however, population trends have not been assessed because populations have not been monitored over time. In addition, for wild species with demonstrated declines, it is often difficult to determine the causes or consequences of their decline. This report outlines priorities for research and monitoring that are needed to improve information on the status of pollinators and establishes a framework for conservation and restoration of pollinator species and communities.
by Frank Charles Reimer, Frank Lincoln Stevens, J. S. Jeffrey, John Michels, North Carolina Agricultural Experiment Station, Ralph Ingram Smith, Robert Seth Curtis
1910
by North Carolina Agricultural Experiment Station
1889
by North Carolina Agricultural Experiment Station
1879
Vol. for 1889 contains, also, "Bulletin, no. 67 a", "Technical bulletin no. 1" and "Annual report of the Meteorological Division fo the North Carolina Agricultural Experiment Station, constituting the N. C. State Weather Service for 1889."; vols. for 1894- contain also Bulletin no. 94- also, Press bulletin , also 1916/17-1918/19, Technical bulletins, no. 11-16; 1950- combined with the annual report of the Extension Service.
by North Carolina Agricultural Experiment Station
1913
by North Carolina Geological and Economic Survey
1911
Vol. for 1889 contains, also, "Bulletin, no. 67 a", "Technical bulletin no. 1" and "Annual report of the Meteorological Division fo the North Carolina Agricultural Experiment Station, constituting the N. C. State Weather Service for 1889."; vols. for 1894- contain also Bulletin no. 94- also, Press bulletin , also 1916/17-1918/19, Technical bulletins, no. 11-16.