Trapido-Rosenthal, H.G.*; Zengler, K.; Ritter, J.E.: Multiple Species of Archaea, Cyanobacteria, and Eubacteria Live in Association with the Sponge Chondrilla nucula Marine sponges have been the subjects of natural products chemists’ investigations for many years, and have been the sources from which novel chemicals with interesting properties have been isolated. Many marine sponges harbor large […]
year: 2001
Chemical cues and vulnerable hosts An investigation into factors affecting settlement of Loxothylacus texanus, a rhizocephalan barnacle parasitizing portunid crabs in the Gulf of Mexico
O’BRIEN, J.J.*; BOETTCHER, A.A.; BOONE, E.; SHERMAN, T.D.: Chemical cues and vulnerable hosts: An investigation into factors affecting settlement of Loxothylacus texanus, a rhizocephalan barnacle parasitizing portunid crabs in the Gulf of Mexico The parasitic castrator, Loxothylacus texanus, stunts the growth and inhibits reproduction of economically important portunid crabs in the Gulf of Mexico where […]
An ancient clade of myxozoans parasitic in freshwater bryozoans
OKAMURA, B.*; ANDERSON, C.L.; CANNING, E.U.: An ancient clade of myxozoans parasitic in freshwater bryozoans The Myxozoa, an enigmatic group of endoparasites, is marked by a long history of phylogenetic and taxonomic uncertainty. Originally classified as protists, it is now clear that myxozoans are proper metazoans, although controversy remains as to whether they are highly […]
The effect of feeding specificity on the fate of terpenoids in Lymantriidae (Lepidoptera)
POWELL, J.S.*; RAFFA, K.F.: The effect of feeding specificity on the fate of terpenoids in Lymantriidae (Lepidoptera) Insect herbivores possess a wide array of mechanisms for processing ingested phytochemicals. However, it is difficult to predict the fate of phytochemicals since it is influenced by many factors. We are testing whether feeding specificity influences the relative […]
Solar Ultraviolet-B Radiation Does Not Affect Hatching Success of Rana pipiens (Northern Leopard Frog) Eggs Under Natural Conditions Along a Contamination Gradient
EDBLOM, T.L.*; KARASOV, W.H.: Solar Ultraviolet-B Radiation Does Not Affect Hatching Success of Rana pipiens (Northern Leopard Frog) Eggs Under Natural Conditions Along a Contamination Gradient We compared the hatching success of Rana pipiens (northern leopard frog) eggs at field sites located along a known contamination gradient in the Green Bay and Fox River ecosystem, […]
Protection or Concealment Ultraviolet Absorption in Transparent Animals
JOHNSEN,S.: Protection or Concealment? Ultraviolet Absorption in Transparent Animals The use of transparency as camouflage in the epipelagic realm is complicated by the presence of ultraviolet radiation, because the presence of UV-protective pigments decreases UV-transparency and may reveal transparent zooplankton to predators and prey with ultraviolet vision. During July 1999, September 1999, and June 2000, […]
Palatability of Pteraster tesselatus (Echinodermata Asteroidea) Eggs
COWART, J.D.: Palatability of Pteraster tesselatus (Echinodermata: Asteroidea) Eggs Risk of offspring mortality is a critical component of models concerning the ecology and evolution of life history traits in marine invertebrates. In these models, predation is generally assumed to be the most important cause of pre-settlement offspring mortality. Although few studies have directly investigated offspring […]
Modeling the effect of UV-B induced egg-stage mortality on the population dynamics of the Common Toad
VONESH, J. R. *; DE LA CRUZ, O.: Modeling the effect of UV-B induced egg-stage mortality on the population dynamics of the Common Toad There has been increasing evidence of widespread population declines of amphibians from relatively undisturbed habitats. It has been suggested that ultraviolet radiation induced embryonic mortality has contributed to the decline of […]
Effects of ultraviolet radiation and water motion on the reef coral Porites compressa A transplantation experiment
KUFFNER, I.B.: Effects of ultraviolet radiation and water motion on the reef coral Porites compressa: A transplantation experiment Ultraviolet radiation (UVR, 280 – 400 nm) is an important ecological variable affecting coral reef organisms, but UVR effects may be influenced by other factors such as water motion. In this study, the effects of ambient UVR […]
Vision in a cubozoan jellyfish
COATES, M.M.*; THOMPSON, S.H.: Vision in a cubozoan jellyfish. Jellyfish of the class Cubozoa possess camera-type eyes similar to those of cephalopods and vertebrates; consisting of a lens, cornea, and retina. The retina is composed of three layers: a sensory layer, a pigmented layer, and a nuclear layer with extending nerve fibers. The cells of […]