| Title | Date | Views | Brief Description |
|---|
| Seasonal changes in lotic phytoplankton and their successional responses to experimental temperatures |
1973 |
252 |
An investigation was made of algae collected on glass slides from polluted waters of an urban creek in Greensboro, North Carolina. Observations were made on the successional properties of these planktonic algal communities in relation to changes in t... |
| Some aspects of the ecology of benthic macroinvertebrates in a cove of Lake Jeanette |
1974 |
248 |
A close examination of the benthos of the 0-5 m zone of a lake cove was undertaken at Lake Jeanette, 10 km north of Greensboro, North Carolina. Monthly samples were made from September, 1973 through April, 1974. The sampling technique devised for thi... |
| The life-history of Ischnura posita (Hagen) in relation to seasonal regulation : (Odonata: Coenagrionidae) |
1968 |
250 |
A study was conducted on Ischnura posita to gain information on aspects of its seasonal cycle and what types of regulation are imposed upon it in achieving metamorphosis and emergence. Information was obtained through a program of larval population s... |
| Some pre-emergence studies on final-instar larvae of Tetragoneuria cynosura (Odonata) |
1975 |
270 |
Final-instar larvae of Tetragoneuria cynosura collected in Guilford Co., N.C. from October 1974 until March 1975 were subjected to experimental temperatures and photoperiods. These environmental factors were analyzed for their effects on food consump... |
| Morphological and chromatic changes in the last instars of Erythemis simplicicollis (odonata) |
1966 |
252 |
Many aspects of the adult life history of the dragonfly Erythemis simplicicollis are well-known resulting from an excellent paper by Williamson (1923). This species (Family Libellulinae) is the "green jacket" dragonfly one finds almost everywhere aro... |
| Growth of larvae of Plathemis Lydia Drury as influenced by controlled photoperiod and temperature (odonata: anisoptera) |
1970 |
207 |
In order to investigate the respective roles of photoperiod and temperature in seasonal regulation of the life cycle, experiments were undertaken to measure the rate of growth of dragonfly larvae when maintained to emergence under constant conditions... |
| Life-history study of libellula incesta with emphasis on egg development as influenced by controlled temperature |
1971 |
1067 |
A field and laboratory study was carried out with Libellula incesta to investigate the effects of controlled temperature and photoperiod on egg development and to determine various aspects of the life cycle. Eggs collected from mating females were su... |
| Effects of some ecological factors on a late summer community of adult Odonata |
1977 |
215 |
A community of adult Odonata, composed of 15 species, was studied from 7 August 1975 until 17 November 1975 at a small pond in piedmont North Carolina. Studies were made on adult behavioral patterns including flight, reproductive, and perching activi... |
| A study of behavioral and reproductive patterns of adult Lestes Vigilax Hagen (Odonata: Lestidae) |
1972 |
196 |
A study was undertaken to investigate the general behavior and reproductive activity of an adult population of Lestes vigilax at an impoundment in piedmont North Carolina. The study was conducted from July through October, 1971 with observations bein... |
| The influence of environmental conditions on the daily activities of Enallagma geminatum (Kellicott), Enallagma signatum (Hagen) and Enallagma civile (Hagen) (Odonata: Zygoptera) |
1973 |
232 |
A field station was established on the farm pond of the North Carolina Agricultural and Technical State University to study some environmental impacts upon the activity cycle of three species of Enallagma. Sites of observation were established to det... |