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Full-Text Articles in Life Sciences
Pre-Settlement History May Obscure The Effect Of Forest Fragmentation On Genetic Variation In Eastern Red-Backed Salamanders, Mark Jordan, Douglas Morris, Scott Gibson
Pre-Settlement History May Obscure The Effect Of Forest Fragmentation On Genetic Variation In Eastern Red-Backed Salamanders, Mark Jordan, Douglas Morris, Scott Gibson
Mark A. Jordan
No abstract provided.
The Effects Of Water And Habitat Quality On Amphibian Assemblages In Two Midwest Watersheds, Abel Castaneda, Mark Jordan
The Effects Of Water And Habitat Quality On Amphibian Assemblages In Two Midwest Watersheds, Abel Castaneda, Mark Jordan
Mark A. Jordan
No abstract provided.
Cascading Ecological Effects Of Low-Level Phosphorus Enrichment In The Florida Everglades, Evelyn Gaiser, Joel Trexler, Jennifer Richards, Daniel Childers, David Lee, Adrienne Edwards, Leonard Scinto, Krish Jayachandran, Gregory Noe, Ronald D. Jones
Cascading Ecological Effects Of Low-Level Phosphorus Enrichment In The Florida Everglades, Evelyn Gaiser, Joel Trexler, Jennifer Richards, Daniel Childers, David Lee, Adrienne Edwards, Leonard Scinto, Krish Jayachandran, Gregory Noe, Ronald D. Jones
Evelyn E. Gaiser
Few studies have examined long-term ecological effects of sustained low-level nutrient enhancement on wetland biota. To determine sustained effects of phosphorus (P) addition on Everglades marshes we added P at low levels (5, 15, and 30 µg L-1 above ambient) for 5 yr to triplicate 100-m flow-through channels in pristine marsh. A cascade of ecological responses occurred in similar sequence among treatments. Although the rate of change increased with dosing level, treatments converged to similar enriched endpoints, characterized most notably by a doubling of plant biomass and elimination of native, calcareous periphyton mats. The full sequence of biological changes occurred …
Influence Of Fungal Isolates Infecting Tall Fescue On Multitrophic Interactions, Tom Bultman, A Aguilera, T Sullivan
Influence Of Fungal Isolates Infecting Tall Fescue On Multitrophic Interactions, Tom Bultman, A Aguilera, T Sullivan
Thomas L. Bultman
The epichloae are ascomycetous fungi in the genera Epichloe and Neotyphodium that live within grasses. Some of these fungi produce alkaloids that can help protect the host from herbivores. The alkaloids may also travel up the food web and affect members of the third trophic level. In this way they can produce trophic cascades which are rippling effects when a trophic level impacts those above or below it. We briefly summarize the general patterns of multitrophic effects of endophytes and highlight the most recent studies on this topic. Further, we report on our study in which we tested if different …
Do Botanophila Flies Provide Reproductive Isolation Between Two Species Of Epichloe Fungi? A Field Test, Thomas Bultman, Adrian Leuchtmann, T. Sullivan, Austin Dreyer
Do Botanophila Flies Provide Reproductive Isolation Between Two Species Of Epichloe Fungi? A Field Test, Thomas Bultman, Adrian Leuchtmann, T. Sullivan, Austin Dreyer
Thomas L. Bultman
P>Epichloe spp., fungal endophytes of cool season grasses, produce collars of mycelium (stromata) on host stems that Botanophila flies visit for egg laying. Flies transfer fungal gametes among stromata and thereby serve to cross-fertilize fungi. Hence, the interaction is analogous to insect pollination in angiosperms. While most Epichloe species are not interfertile, Epichloe typhina and Epichloe clarkii can hybridize. We investigated whether Botanophila flies play a role in the reproductive isolation of the two Epichloe species at a field site in southwestern Switzerland. We estimated the density of stromata and collected fly larvae and stromata occurring on plants. While …
Extensions To And Modulation Of Defensive Mutualism In Grass Endophytes, Thomas Bultman, Terrence Sullivan, Michael Cortez, Timothy Pennings, Janet Andersen
Extensions To And Modulation Of Defensive Mutualism In Grass Endophytes, Thomas Bultman, Terrence Sullivan, Michael Cortez, Timothy Pennings, Janet Andersen
Thomas L. Bultman
No abstract provided.
Potential Parthenogenesis In A Viperid Snake, Mark Jordan, Natasha Perrine
Potential Parthenogenesis In A Viperid Snake, Mark Jordan, Natasha Perrine
Mark A. Jordan
No abstract provided.
Direct Visualization Of Clay Microfabric Signatures Driving Organic Matter Preservation In Fine-Grained Sediment, Kenneth Curry
Direct Visualization Of Clay Microfabric Signatures Driving Organic Matter Preservation In Fine-Grained Sediment, Kenneth Curry
Kenneth J. Curry
We employed direct visualization of organic matter (OM) sequestered by microfabric signatures in organo-clay systems to study mechanisms of OM protection. We studied polysaccharides, an abundant class of OM in marine sediments, associated with the nano- and microfabric of clay sediment using a novel application of transmission electron microscopy, histochemical staining (periodic acid-thiosemicarbazide-silver proteinate), and enzymatic digestion techniques. We used two experimental organo-clay sediment environments. First, laboratory-consolidated sediment with 10% chitin (w/w) added was probed for chitin before and after digestion with chitinase. Second, fecal pellets from the polychaete Heteromastus filiformis were used as a natural environment rich in clay …
Population Genetics Of A Tolerant Fish In An Agriculturally Dominated Watershed, Mark Jordan, Deepal Patel, Matthew Richardville, Kathryn Sanders, Robert Gillespie
Population Genetics Of A Tolerant Fish In An Agriculturally Dominated Watershed, Mark Jordan, Deepal Patel, Matthew Richardville, Kathryn Sanders, Robert Gillespie
Mark A. Jordan
No abstract provided.
Symbiosis (Addiction: Biology, Psychology And Society), Ahmed Mustafa, Sharon Morgillo, Shree Dhawale
Symbiosis (Addiction: Biology, Psychology And Society), Ahmed Mustafa, Sharon Morgillo, Shree Dhawale
Ahmed Mustafa Dr.
No abstract provided.
A Role For The Root Cap In Root Branching Revealed By The Non-Auxin Probe Naxillin, B. De Rybel, D. Audenaert, W. Xuan, P. Overvoorde, L. Strader, S. Kepinski, R. Hoye, Ronald Brisbois, B. Parizot, S. Vanneste, X. Liu, A. Gilday, I. Graham, L. Nguyen, L. Jansen, M. Njo, D. Inze, B. Bartel, T. Beeckman
A Role For The Root Cap In Root Branching Revealed By The Non-Auxin Probe Naxillin, B. De Rybel, D. Audenaert, W. Xuan, P. Overvoorde, L. Strader, S. Kepinski, R. Hoye, Ronald Brisbois, B. Parizot, S. Vanneste, X. Liu, A. Gilday, I. Graham, L. Nguyen, L. Jansen, M. Njo, D. Inze, B. Bartel, T. Beeckman
Ronald Brisbois
No abstract provided.
Learning How We Think And Feel, John Pellegrini
Using The History Of Science And Medicine To Enrich Anatomy And Physiology Courses, John Pellegrini
Using The History Of Science And Medicine To Enrich Anatomy And Physiology Courses, John Pellegrini
John Pellegrini
No abstract provided.
Environmental Issues For The 21st Century And Their Impact On Human Health, Richard B. Philp
Environmental Issues For The 21st Century And Their Impact On Human Health, Richard B. Philp
Richard B. Philp
This book (see contents attached) is now available from the author on CD