The geographic distribution of the Avicenniaceae and certain genera of Verbenaceae /

"New York Botanical Garden, Bronx Park, New York City. September 20, 1939"--Leaf 41.

Geographic distribution of industrial r&d expenditures.

Mode of access: Internet.

Geographic distribution of the pines of the world /

Includes index.

The fleas of North America : classification, identification, and geographic distribution of these injurious and disease-spreading insects /

Contribution from Bureau of Entomology and Plant Quarantine.

The plants of southern New Jersey, with especial reference to the flora of the pine barrens, and the geographic distribution of the species.

Indexed in Annual report for 1912, p. 148-164, 201-203.

Benthic fauna of an offshore borrow area in Broward County, Florida /

Benthic fauna from two stations within a 5-year-old borrow area and two control stations off Hillsboro Beach (Broward County), Florida, were sampled quarterly from June 1977 to March 1978 to evaluate the long-term impact of offshore dredging. Generally enhanced productivities occurred within the borrow area, although there was much seasonal variation among stations. Species diversities were usually higher at the borrow stations than at the control stations. The single exception was due to a high concentration of the bivalve E. nitens at one of the control stations in June. Although faunal similarity analysis revealed a qualitative change in the fauna of the borrow area, this change is not considered detrimental. Conspicuous patterns of heterogeneous faunal distributions were evident in this study, particularly for the bivalve E. nitens. No lasting detrimental effects, in terms of numbers of species, faunal densities, or species diversity, resulted from the dredging operation. (Author).