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Articles 571 - 600 of 4790
Full-Text Articles in Life Sciences
Acer Saccharinum L., Gordon C. Tucker
Verbena Urticifolia L., Gordon C. Tucker
Acer Rubrum Wats., Gordon C. Tucker
Acer X Freemanii E. Murray [Rubrum × Saccharinum], Gordon C. Tucker
Acer X Freemanii E. Murray [Rubrum × Saccharinum], Gordon C. Tucker
Specimens by Name
No abstract provided.
Verbena L., Gordon C. Tucker, Xun-Lin Yi
Viola Diffusa Ging., Gordon C. Tucker, Xun-Lin Yu
Viola Diffusa Ging., Gordon C. Tucker, Xun-Lin Yu
Specimens by Name
No abstract provided.
Helicia Cochinchinensis Lour., Gordon C. Tucker, Xun-Lin Yu
Helicia Cochinchinensis Lour., Gordon C. Tucker, Xun-Lin Yu
Specimens by Name
No abstract provided.
Viola Blanda Willd., P. Harwood
Viola Cucullata Moc. & Sessé Ex Ging., P. Harwood
Viola Cucullata Moc. & Sessé Ex Ging., P. Harwood
Specimens by Name
No abstract provided.
Glandularia Canadensis (L.) Nutt., William E. Mcclain
Glandularia Canadensis (L.) Nutt., William E. Mcclain
Specimens by Name
No abstract provided.
Basketball’S Forgotten Experiment: Don Barksdale And The Legacy Of The United States Olympic Basketball Team, Chad R. Carlson
Basketball’S Forgotten Experiment: Don Barksdale And The Legacy Of The United States Olympic Basketball Team, Chad R. Carlson
Faculty Research and Creative Activity
The 1948 United States Olympic basketball team has largely been fotgotten in the annals of American history despite taking a major step toward racial integration in American sports. Don Barksdale, the first African American to represent the US on the hardwood in the Olympics, joined nine players from the American South and legendary University of Kentucky coach, Adolph Rupp - a man notoriously identified as a racist. While Barksdale experienced very little racial mistreatment during the London Olympics, the lead-up to the Games reveals America's ambiguous views on race relations. During training in the segregated states of Oklahoma and Kentucky, …
Claytonia Virginica L., Gordon C. Tucker
Viola Canadensis L., P. Harwood, Carol Woodin
Claytonia Virginica L., Gordon C. Tucker
Relative Allelopathic Potential Of Invasive Plant Species In A Young Disturbed Woodland, Nikki Pisula, Scott J. Meiners
Relative Allelopathic Potential Of Invasive Plant Species In A Young Disturbed Woodland, Nikki Pisula, Scott J. Meiners
Faculty Research & Creative Activity
Invasive plant species are often more successful within introduced areas when compared to their natural ranges. Allelopathy has been suggested as a potential mechanism for this success because invasive plants frequently establish monocultures and may produce allelochemicals evolutionarily novel to the recipient community. However, species are typically tested in isolation making the relative strength of allelopathy difficult to assess. We conducted laboratory bioassays for 10 co-occurring non-native species to determine the relative strength of their allelopathic potential. These species represented a suite of successful invaders within a young forest and were from a variety of plant life forms: trees, lianas, …
Tissue-Diet Discrimination Factors And Turnover Of Stable Carbon And Nitrogen Isotopes In White-Footed Mice (Peromyscus Leucopus), Rachel L. Demots, James M. Novak, Karen F. Gaines, Aaron J. Gregor, Christopher S. Romanek, Daniel A. Soluk
Tissue-Diet Discrimination Factors And Turnover Of Stable Carbon And Nitrogen Isotopes In White-Footed Mice (Peromyscus Leucopus), Rachel L. Demots, James M. Novak, Karen F. Gaines, Aaron J. Gregor, Christopher S. Romanek, Daniel A. Soluk
Faculty Research & Creative Activity
Stable isotope analysis has become an increasingly valuable tool in investigating animal ecology. Here we document the turnover rates for carbon in the liver, muscle, and whole blood tissue, as well as the tissue-diet discrimination values for carbon and nitrogen isotopes in the liver, whole blood, muscle, and hair, of the white-footed mouse (Peromyscus leucopus (Rafinesque, 1818)). A 168-day diet-switching experiment was conducted with a laboratory population of white-footed mice. The δ13C values for all tissues deviated less than 1‰ from those of the diet except for whole blood, which had a slightly higher tissue-diet discrimination factor of 1.8‰. All …
Evaluating The Illinois Stream Valley Segment Model As An Effective Management Tool, Stephen S. Warrner, Robert U. Fischer, Ann M. Holtrop, Leon C. Hinz Jr., James M. Novak
Evaluating The Illinois Stream Valley Segment Model As An Effective Management Tool, Stephen S. Warrner, Robert U. Fischer, Ann M. Holtrop, Leon C. Hinz Jr., James M. Novak
Faculty Research & Creative Activity
Stream habitat assessments are conducted to evaluate biological potential, determine anthropogenic impacts, and guide restoration projects. Utilizing these procedures, managers must first select a representative stream reach, which is typically selected based on several criteria. To develop a consistent and unbiased procedure for choosing sampling locations, the Illinois Department of Natural Resources and the Illinois Natural History Survey have proposed a technique by which watersheds are divided into homogeneous stream segments called valley segments. Valley segments are determined by GIS parameters including surficial geology, predicted flow, slope, and drainage area. To date, no research has been conducted to determine if …
Mechanisms Of Apoptosis In Crustacea: What Conditions Induce Versus Suppress Cell Death?, Michael A. Menze, Grady Fortner, Suman Nag, Steven C. Hand
Mechanisms Of Apoptosis In Crustacea: What Conditions Induce Versus Suppress Cell Death?, Michael A. Menze, Grady Fortner, Suman Nag, Steven C. Hand
Faculty Research & Creative Activity
Arthropoda is the largest of all animal phyla and includes about 90% of extant species. Our knowledge about regulation of apoptosis in this phylum is largely based on findings for the fruit fly Drosophila melanogaster. Recent work with crustaceans shows that apoptotic proteins, and presumably mechanisms of cell death regulation, are more diverse in arthropods than appreciated based solely on the excellent work with fruit flies. Crustacean homologs exist for many major proteins in the apoptotic networks of mammals and D. melanogaster, but integration of these proteins into the physiology and pathophysiology of crustaceans is far from complete. Whether apoptosis …
A Sketch-Based Language For Representing Uncertainty In The Locations Of Origin Of Herbarium Specimens, Barry Kronenfeld, Andrew Weeks
A Sketch-Based Language For Representing Uncertainty In The Locations Of Origin Of Herbarium Specimens, Barry Kronenfeld, Andrew Weeks
Faculty Research and Creative Activity
Uncertainty fields have been suggested as an appropriate model for retrospective georeferencing of herbarium specimens. Previous work has focused only on automated data capture methods, but techniques for manual data specification may be able to harness human spatial cognition skills to quickly interpret complex spatial propositions. This paper develops a formal modeling language by which location uncertainty fields can be derived from manually sketched features. The language consists of low-level specification of critical probability isolines from which a surface can be uniquely derived, and high-level specification of features and predicates from which low-level isolines can be derived. In a case …
Relative Allelopathic Potential Of Invasive Plant Species In A Young Disturbed Woodland, Nikki Pisula, Scott Meiners
Relative Allelopathic Potential Of Invasive Plant Species In A Young Disturbed Woodland, Nikki Pisula, Scott Meiners
Faculty Research & Creative Activity
Invasive plant species are often more successful within introduced areas when compared to their natural ranges. Allelopathy has been suggested as a potential mechanism for this success because invasive plants frequently establish monocultures and may produce allelochemicals evolutionarily novel to the recipient community. However, species are typically tested in isolation making the relative strength of allelopathy difficult to assess. We conducted laboratory bioassays for 10 co-occurring non-native species to determine the relative strength of their allelopathic potential. These species represented a suite of successful invaders within a young forest and were from a variety of plant life forms: trees, lianas, …
Allelopathic Effects Of Goldenrod Species On Turnover In Successional Communities, Nikki Pisula, Scott Meiners
Allelopathic Effects Of Goldenrod Species On Turnover In Successional Communities, Nikki Pisula, Scott Meiners
Faculty Research & Creative Activity
While goldenrod species are often found to be allelopathic in laboratory settings, its importance in controlling plant community dynamics has been much more difficult to assess. We designed a study to determine whether allelopathy is related to the success of goldenrods in abandoned agricultural land. To accomplish this, we conducted laboratory bioassays for six co-occurring goldenrod species and compared these results to the cover and impacts of these species in the field. We determined the germination responses of two target species to a gradient of leaf extract concentrations to assess the allelopathic potential of these goldenrods. We also used long-term …
Spatiotemporal Dynamics Of Lianas During 50 Years Of Succession To Temperate Forest, Laura Ladwig, Scott Meiners
Spatiotemporal Dynamics Of Lianas During 50 Years Of Succession To Temperate Forest, Laura Ladwig, Scott Meiners
Faculty Research & Creative Activity
Although they are important components of forest communities, the general ecology and spatiotemporal patterns of temperate lianas during forest regeneration are largely unknown. The dependence of lianas on other plants for physical support makes them a potentially important driver of community dynamics. We examined 50 years of vegetation data from an old-field succession study to determine the dynamics and community controls on liana expansion within the Piedmont region of New Jersey, USA. Four lianas, Lonicera japonica, Parthenocissus quinquefolia, Toxicodendron radicans, and Vitis spp., occurred in enough abundance for detailed analyses. In general, liana cover peaked during mid-succession (20–30 years post-abandonment) …
Responses Of Bats To Forest Fragmentation In The Mississippi River Alluvial Valley, Arkansas, Usa, Rex E. Medlin Jr., Matthew B. Connior, Karen F. Gaines, Thomas S. Risch
Responses Of Bats To Forest Fragmentation In The Mississippi River Alluvial Valley, Arkansas, Usa, Rex E. Medlin Jr., Matthew B. Connior, Karen F. Gaines, Thomas S. Risch
Faculty Research & Creative Activity
Intense conversion of bottomland hardwood forests to rice and soybeans in the Mississippi River Valley of Arkansas has restricted the remaining forest to isolated fragments. Habitat fragmentation has proven to be detrimental to population sustainability of several species, and is the subject of intense study with often species and latitude specific responses. We compared both coarse land area classes and landscape fragmentation metrics from six 30 km × 30 km subsets centered on publicly owned management areas to bat captures obtained from a 2005 population study. Patch density was the strongest predictor of total captures (R 2 = 0.801, p …
Reconstitution Of The Olfactory Epithelium Following Injury In Apoe-Deficient Mice, Britto P. Nathan, Salina Gairhe, Ikemefuna Nwosu, Stephen Clark, Robert G. Struble
Reconstitution Of The Olfactory Epithelium Following Injury In Apoe-Deficient Mice, Britto P. Nathan, Salina Gairhe, Ikemefuna Nwosu, Stephen Clark, Robert G. Struble
Faculty Research & Creative Activity
ApoE, a protein component of lipoproteins, is extensively expressed in the primary olfactory pathway. Because apoE has been shown to play a vital role in nerve repair and remodeling, we hypothesized that apoE expression will increase in the injured olfactory epithelium (OE), and that apoE deficiency in apoE knockout (KO) mice will lead to delayed/incomplete reconstitution of the OE following injury. To directly test this hypothesis, we compared OE regeneration in wild-type (WT) and KO mice following injury induced by intranasal irrigation of Triton X-100. OE was collected at 0, 3, 7, 21, 42, and 56 days post lesion. The …
Reconstitution Of The Olfactory Epithelium Following Injury In Apoe-Deficient Mice, Britto Nathan, Salina Gairhe, Ikemefuna Nwosu, Stephen Clark, Robert Struble
Reconstitution Of The Olfactory Epithelium Following Injury In Apoe-Deficient Mice, Britto Nathan, Salina Gairhe, Ikemefuna Nwosu, Stephen Clark, Robert Struble
Faculty Research & Creative Activity
ApoE, a protein component of lipoproteins, is extensively expressed in the primary olfactory pathway. Because apoE has been shown to play a vital role in nerve repair and remodeling, we hypothesized that apoE expression will increase in the injured olfactory epithelium (OE), and that apoE deficiency in apoE knockout (KO) mice will lead to delayed/incomplete reconstitution of the OE following injury. To directly test this hypothesis, we compared OE regeneration in wild-type (WT) and KO mice following injury induced by intranasal irrigation of Triton X-100. OE was collected at 0, 3, 7, 21, 42, and 56 days post lesion. The …
Surveys Of Stylisma Pickeringii Var. Pattersonii (Convolvulaceae), Its Associated Plant Species, And Its Insect Visitors, Ann E. Claerbout, Brent L. Todd, Janice M. Coons, Henry R. Owen, Donald W. Webb, John E. Ebinger, William E. Mcclain
Surveys Of Stylisma Pickeringii Var. Pattersonii (Convolvulaceae), Its Associated Plant Species, And Its Insect Visitors, Ann E. Claerbout, Brent L. Todd, Janice M. Coons, Henry R. Owen, Donald W. Webb, John E. Ebinger, William E. Mcclain
Faculty Research & Creative Activity
Stylisma pickeringii var. pattersonii (Convolvulaceae) is endangered in Illinois and Iowa, and occurs in scattered populations in other states. During 1999 and 2000, two insect species previously unreported from Illinois were observed visiting its flowers. This study was undertaken to survey additional insect visitors, as well as to characterize the plant community where S. pickeringii occurs. The objectives were to survey: 1) floral traits (anthesis and flower density) of S. pickeringii, 2) associated plant species, and 3) insect visitor characteristics. Floral traits were determined and associated plant species surveyed in Mason County (degraded hay field on private property) and Henderson …
Liana Host Preference And Implications For Deciduous Forest Regeneration, Laura M. Ladwig, Scott J. Meiners
Liana Host Preference And Implications For Deciduous Forest Regeneration, Laura M. Ladwig, Scott J. Meiners
Faculty Research & Creative Activity
Lianas have the potential to shape forest communities and alter forest regeneration. However, impacts of lianas on forest regeneration, particularly in temperate forests, are largely unstudied. To understand potential liana impacts on the community we need to first know the location and intensity of liana burdens on host trees. We examined liana-tree host references within a series of young regenerating deciduous forests in the Piedmont region of New Jersey, USA. Established trees ($ 5 cm dbh) and the lianas associated with each tree were surveyed in 2008. The five most abundant liana species were Celastrus orbiculatus, Lonicera japonica, Parthenocissus quinquefolia, …
Spatiotemporal Dynamics Of Lianas During 50 Years Of Succession To Temperate Forest, Laura Ladwig, Scott J. Meiners
Spatiotemporal Dynamics Of Lianas During 50 Years Of Succession To Temperate Forest, Laura Ladwig, Scott J. Meiners
Faculty Research & Creative Activity
Although they are important components of forest communities, the general ecology and spatiotemporal patterns of temperate lianas during forest regeneration are largely unknown. The dependence of lianas on other plants for physical support makes them a potentially important driver of community dynamics. We examined 50 years of vegetation data from an old-field succession study to determine the dynamics and community controls on liana expansion within the Piedmont region of New Jersey, USA. Four lianas, Lonicera japonica, Parthenocissus quinquefolia, Toxicodendron radicans, and Vitis spp., occurred in enough abundance for detailed analyses. In general, liana cover peaked during mid-succession (20–30 years post-abandonment) …
Allelopathic Effects Of Goldenrod Species On Turnover In Successional Communities, Nikki Pisula, Scott J. Meiners
Allelopathic Effects Of Goldenrod Species On Turnover In Successional Communities, Nikki Pisula, Scott J. Meiners
Faculty Research & Creative Activity
While goldenrod species are often found to be allelopathic in laboratory settings, its importance in controlling plant community dynamics has been much more difficult to assess. We designed a study to determine whether allelopathy is related to the success of goldenrods in abandoned agricultural land. To accomplish this, we conducted laboratory bioassays for six co-occurring goldenrod species and compared these results to the cover and impacts of these species in the field. We determined the germination responses of two target species to a gradient of leaf extract concentrations to assess the allelopathic potential of these goldenrods. We also used long-term …
Dna Double-Strand Breakage As An Endpoint To Examine Metal And Radionuclide Exposure Effects To Water Snakes On A Nuclear Industrial Site, Stephanie M. Murray, Karen F. Gaines, James M. Novak, Michael Gochfeld, Joanna Burger
Dna Double-Strand Breakage As An Endpoint To Examine Metal And Radionuclide Exposure Effects To Water Snakes On A Nuclear Industrial Site, Stephanie M. Murray, Karen F. Gaines, James M. Novak, Michael Gochfeld, Joanna Burger
Faculty Research & Creative Activity
This study examined metal levels (especially U and Ni) in the tail tissues of water snakes from contaminated (Tim’s Branch) and reference areas on the Department of Energy’s Savannah River Site (SRS). Home ranges of snakes were quantified to determine the ratio of the habitat that they use in relation to the contaminated areas to better estimate exposure Compared to conventional methods that do not. The exposure assessment indicated that water snakes in the contaminated areas could expect U exposure at 3–4 orders of magnitude greater than the Agency for Toxic Substances and Disease Registry’sMinimum Risk Level (MRL) from ingestion …