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Articles 1 - 6 of 6
Full-Text Articles in Biology
Human Trampling In The Upper Rocky Intertidal: Trampling And Recovery In Barnacle Mediated Succession, Timothy Lawrence Grubba
Human Trampling In The Upper Rocky Intertidal: Trampling And Recovery In Barnacle Mediated Succession, Timothy Lawrence Grubba
Dissertations and Theses
Marine intertidal ecosystems are vulnerable to human interference,
because trampling can be a significant problem. I studied the impacts of
trampling on community patterns and succession in a rocky intertidal
habitats. This study was divided into two phases: ( 1) a trampling phase and
(2) a recovery phase. Both phases are focused on two barnacles, Balanus
glandula and Chthamalus dalli, and on fucoid and red algae. The trampling
phase tested the effects of trampling on these organisms. The effects of
herbivores, primarily limpets (Collisella digitalis) were also tested to
determine whether anthropogenic (trampling) and natural (herbivory and
limpet bulldozing) disturbances …
Changes In Reproductive Morphology And Physiology Observed In The Amphipod Crustacean, Melita Nitida Smith, Maintained In The Laboratory On Polluted Estuarine Sediments, John T. Tanacredi Ph.D., B. Borowsky, P. Aitken-Ander
Changes In Reproductive Morphology And Physiology Observed In The Amphipod Crustacean, Melita Nitida Smith, Maintained In The Laboratory On Polluted Estuarine Sediments, John T. Tanacredi Ph.D., B. Borowsky, P. Aitken-Ander
Faculty Works: CERCOM
An earlier study showed that the amphipod crustacean Melita nitida Smith maintained on sediments dosed with waste crankcase oil developed physiological and morphological abnormalities. Most notably, mature females developed abnormal setae along the edges of their brood plates. The present study was conducted to determine whether similar abnormalities might be induced in animals maintained on polluted field sediments containing petroleum by-products among other toxic substances. In the laboratory, heterosexual pairs were maintained on three sediments taken from Jamaica Bay (New York) plus one control sediment and one toxic substratum (Ulva lactuca (L.) thalli). The results mirrored the results of …
Las Vegas Wash Water Quality Monitoring Program: 1996 Report Of Findings, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation, U.S. Geological Survey
Las Vegas Wash Water Quality Monitoring Program: 1996 Report Of Findings, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation, U.S. Geological Survey
Publications (WR)
Las Vegas Wash, a natural wash east of the city of Las Vegas, Nevada, carries stormwater, groundwater drainage, and sewage effluent from three sewage treatment plants to Lake Mead. The Wash provides nearly the only surface water outlet for the entire 2,193 mi2 of Las Vegas Valley. A drainage area of 1,586 mi2 contributes directly to the Wash through surface flow which is channeled to Las Vegas Bay of Lake Mead, while drainage of the remaining 607 mi2 is presumably subsurface and may drain toward Las Vegas Wash.
In the 1930's and 1940's, sewage treatment plants were …
Behavioral Response Of The Crayfish Procambarus Clarkii To The Crustacean Molting Hormone 20-Hydroxyecdysone, William D. Hornsby
Behavioral Response Of The Crayfish Procambarus Clarkii To The Crustacean Molting Hormone 20-Hydroxyecdysone, William D. Hornsby
Honors Capstone Projects and Theses
No abstract provided.
Description Of The Tadpole Of Atelopus Tricolor, E. O. Lavilla, Rafael O. De Sá, Ignacio De La Riva
Description Of The Tadpole Of Atelopus Tricolor, E. O. Lavilla, Rafael O. De Sá, Ignacio De La Riva
Biology Faculty Publications
Tadpoles of Atelopus belong to the gastromyzophorous guild of exotrophic larvae (Altig and Johnston, 1989), and are characterized by the presence of a conspicuous abdominal sucker and an expanded oral disc. The larvae of several Atelopus species have been described previously: A. varius (Starrett, 1967); A. certus, A. ignescens, and A. spumarius (Duellman and Lynch, 1969); A. cruciger (Mebs, 1980); A. flavescens (Lescure, 1981); A. peruensis (Gray and Cannatella, 1985); and A. subornatus (Lynch, 1986). These represent about 15% of the known species in the genus (Frost, 1985; Duellman, 1993). Although Atelopus tricolor was originally described at the beginning of …
Factors Influencing Maternal Behaviour In A Burrower Bug, Sehirus Cinctus (Heteroptera: Cydnidae), Scott Kight
Factors Influencing Maternal Behaviour In A Burrower Bug, Sehirus Cinctus (Heteroptera: Cydnidae), Scott Kight
Scott Kight