Filters: Contacts: {oldPartyId:251} (X)
8 results (29ms)|
Filters
Date Range
Types Contacts
Categories Tag Types Tag Schemes |
The coastal prairie of Louisiana is classified as a Tier 1 Habitat in the Louisiana Department of Wildlife and Fisheries’ Wildlife Action Plan, meaning that it is a priority habitat of primary conservation concern. Declines in pollinator populations worldwide have prompted questions about the role of such grasslands as habitat for pollinators. In this study, we surveyed bee populations and the plant communities present in the following three grassland types in southwest Louisiana: prairie remnants, restored prairies, and old fields.
Categories: Data;
Tags: Cajun Prairie Farms,
Cameron Prairie National Wildlife Refuge,
Durald Prairie Restoration,
Ecology,
Estherwood,
Recurring drying and wetting events are likely to increase in frequency and intensity in predicted future droughts in the central United States and alter the regeneration potential of species. We explored the resistance of seed banks to successive droughts in 53 sites across the nine locations in baldcypress swamps in the southeastern United States. Along the Mississippi River Alluvial Valley and northern Gulf of Mexico, we investigated the capacity of seed banks to retain viable seeds after successive periods of drying and wetting in a greenhouse study. Mean differences of species richness and seed density were compared to examine the interactions of successive droughts, geographical location and water regime....
Categories: Data;
Types: Citation;
Tags: Gulf of Mexico,
Mississippi River,
USGS Science Data Catalog (SDC),
climate change effects,
geographical gradient,
The decline of Taxodium distichum, bald cypress, forests along the Gulf Coast of North America is partly due to elevation loss and subsequent flooding. In many coastal wetlands, a common approach for coastal restoration is to rebuild elevation through the application of dredge spoil, but this technique has not been used widely in coastal forests due to concerns of negatively impacting trees. This experiment explored health responses of Nyssa aquatica, water tupelo, and T. distichum saplings to applications of low salinity dredge spoil in a greenhouse setting. Compared to controls, saplings of T. distichum grown in 7 and 15 cm sediment depths had higher final heights, and stem and total biomass while N. aquatica...
Categories: Data;
Types: Citation;
Tags: Ecology,
Lafayette, Lafayette Parish, Louisiana,
Sediment application,
Subsidence,
USGS Science Data Catalog (SDC),
During March and April of 2018, viable seeds were collected from Cañón de Fernández State Park in Lerdo, Durango and sent to Lafayette, LA for germination. This study tested the seedling growth and germination of Taxodium mucronatum from the Nazas River watershed at different salinity concentrations representing freshwater, moderate salinity, and high salinity.
Categories: Data;
Tags: Botany,
Cañón de Fernández State Park,
Chihuahuan Desert,
Germination Response,
Halophile,
A better understanding of the potential of climate change to affect carbon dynamics in wetlands can be gained through the study of plant decomposition and soil organic matter trends across continental gradients. This study from 2007 and 2011 examines patterns of wood, leaf and cloth decomposition, as well as soil organic matter storage in Taxodium distichum (T. distichum) swamps along the Mississippi River Alluvial Valley (MRAV) and the northern Gulf of Mexico (GOM) in North America.
Estimates of the biomass of the knees of baldcypress (Taxodium distichum), and oddly shaped, difficult to quantify vegetation components, can be critical to improve estimates of carbon stock in blue carbon assessments. To this end, tree metrics (e.g., density, height, biomass) were examined in 2004 at mixed baldcypress swamps across the Mississippi River Alluvial Valley (MRAV) from Illinois to Louisiana. Biomass of knees was estimated using the point-centered quarter method and volume/mass regressions calculated from measurements of knee height and diameter of the base of knees.
Genetic diversity may promote a plant species’ invasiveness by facilitating the evolution of local adaptation, enhanced competitive abilities, and phenotypic plasticity. We examined the possible role of genetic diversity in the invasiveness of purple loosestrife, Lythrum salicaria L., a Eurasian native introduced to North America, through a broad geographic comparison of eight populations, four from Europe and four from North America. We further cultivated these populations in two common gardens varying by nearly 20 degrees of latitude to evaluate whether invasive populations exhibit heightened growth/reproductive capabilities and/or phenotypic plasticity when faced with widely varying environmental conditions....
Categories: Data;
Types: Citation;
Tags: Botany,
Climate change,
Genetics,
Lafayette, Lafayette parish,
USGS Science Data Catalog (SDC),
In this study our objective was to establish baseline abundance numbers of butterflies and to evaluate a monitoring system that can be used by persons with relatively little experience to assess changes in butterfly abundance. Because butterflies that depend on grasslands use flowering plants as nectar sources and a variety of plant species as larval host plants, nectar and pollen resources are described as well. Associated products: Asher, J., Warren, M., Fox, R., Harding, P., Jeffcoate, G., and Jeffcoate, S., 2001, The millennium atlas of butterflies in Britain and Ireland. Oxford University Press, Oxford, 456 p., https://www.worldcat.org/title/millennium-atlas-of-butterflies-in-britain-and-ireland/oclc/45121710....
|
|
