Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Life Sciences
Arthropod Community Dynamics In Three Ruderal Old Fields With Possible Effects Of Solid Rocket Fuel Exhaust, Russell D. Caldwell
Arthropod Community Dynamics In Three Ruderal Old Fields With Possible Effects Of Solid Rocket Fuel Exhaust, Russell D. Caldwell
Retrospective Theses and Dissertations
Arthropods were collected at three sites on the Canaveral Peninsula of the east central Florida coast, from May until November, 1975. These sites were old fields dominated by grasses and herbs and one of them (site 1) was located near Launch Complex 41, Kennedy Space Center. A modified drop-trap of 0.5 m2 was used to trap arthropods at approximately 14-day intervals. A vacuum collector removed the arthropods and loose material which was visually inspected for arthropods by the unaided eye and a 7X dissecting scope. A total of 12,296 arthropods was collected during the study. Insects were by far the …
Zooplankton Abundance And Diversity In Central Florida Grass Carp Ponds, Douglas Lee Fry
Zooplankton Abundance And Diversity In Central Florida Grass Carp Ponds, Douglas Lee Fry
Retrospective Theses and Dissertations
The effect of the Asian grass carp (Ctenopharyngodon idella Val.) and aquatic vegetation upon the zooplankton in four adjacent experimental ponds (0.139 ha each) was studied for one year. Zooplankton were collected with a newly designed shallow-water sampler. Pond 1 contained no aquatic vegetation. Ponds 2, 3, and 4 contained nine species of rooted aquatic plants. Grass carp were stocked into Pond 2 (65 per ha) and Pond 3 (611 per ha). Physicochemical parameters were similar among the ponds. Eighty-eight zooplankton species were enumerated. The abundance of zooplankton groups (Rotifera, Cladocera, and Copepoda) was not significantly different among the ponds …