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Full-Text Articles in Life Sciences
Zooplankton Abundance And Diversity In A Hydrilla Infested Central Florida Lake, Don C. Schmitz
Zooplankton Abundance And Diversity In A Hydrilla Infested Central Florida Lake, Don C. Schmitz
Retrospective Theses and Dissertations
Zooplankton abundance, hydrilla biomass, and physicochemical parameters were sampled for one year in a small central Florida lake. Annually, rotifers comprised most of the species collected and were the most abundant zooplankton group. Hydrilla biomass was lowest during winter and spring while orthophosphate and phtoplankton concentrations were highest. Zooplankton densities were highest when hydrilla biomass was low. Small-bodied limnetic herbivores comprised most of the zooplankton during the spring. Zooplanton abundances were lowest during summer and fall and may have been either directly or indirectly related to the hydrilla growth. Factors, such as lower phytoplankton and dissolved oxygen concentrations, possible increased …
Attentiveness And Time Budget Of A Pair Of Nesting Wood Storks, E. Scott Clark
Attentiveness And Time Budget Of A Pair Of Nesting Wood Storks, E. Scott Clark
Retrospective Theses and Dissertations
An instantaneous sampling system was used to quantify nest attentiveness and time budget of a pair of Wood Storks (Mycteria americana) nesting at the Moore Creek colony on Merritt Island National Wildlife Refuge in 1977. The amount of time devoted to various activities during each stage of the 4-month reproductive cycle was examined and differences between stages evaluated. During the incubation period an adult was constantly at the nest site and the birds shared equally in the incubation duties. During the first four weeks of the 8-week pre-flight nestling stage, an adult was with the chicks continuously, although the adults …
Population Dynamics Of Small Mammals In Two Plant Communities Of The Merritt Island National Wildlife Refuge, Jeffrey A. Goldberg
Population Dynamics Of Small Mammals In Two Plant Communities Of The Merritt Island National Wildlife Refuge, Jeffrey A. Goldberg
Retrospective Theses and Dissertations
No abstract provided.
Population Ecology Of The Beach Mouse, Peromyscus Polionotus Niveiventris, Douglas Dale Extine
Population Ecology Of The Beach Mouse, Peromyscus Polionotus Niveiventris, Douglas Dale Extine
Retrospective Theses and Dissertations
No abstract provided.
Benthic Macroinvertebrates In A Hydrilla Infested Central Florida Lake, Stefani L. Scott
Benthic Macroinvertebrates In A Hydrilla Infested Central Florida Lake, Stefani L. Scott
Retrospective Theses and Dissertations
Benthic macroinvertebrates and physicochemical parameters were monitored simultaneously with hydrilla in a central Florida lake. Changes in the benthos were described in relation to plant growth. Twenty-seven of the 54 taxa of benthic macroinvertebrates collected were members of the Family Chironomidae. Chironomids and oligochaetes numerically dominated the benthos, comprising of 82% of the individual collected. The greatest numbers of species and individuals were found during the winter when hydrilla biomass was low. Hydrilla biomass ranged from 0.385 kg/m2 in April, 1977 to 2.275 kg/m2 in October, 1977. Low numbers of species and individuals were collected from bottom sediments during summer …