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Full-Text Articles in Life Sciences
Post-Biological Control Invasion Trajectory For Melaleuca Quinquenervia In A Seasonally Inundated Wetland, Philip W. Tipping, Melissa R. Martin, Ryan Pierce, Ted D. Center, Paul R. Pratt, Min B. Rayamajhi
Post-Biological Control Invasion Trajectory For Melaleuca Quinquenervia In A Seasonally Inundated Wetland, Philip W. Tipping, Melissa R. Martin, Ryan Pierce, Ted D. Center, Paul R. Pratt, Min B. Rayamajhi
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The recruitment and mortality of Melaleuca quinquenervia seedlings were evaluated over a 3-year period in a seasonally inundated wetland in the western Everglades region. The mean (±SE) density of seedlings/ saplingsm-1 declined from 64.8 (±4.5) to 0.5 (±0.2) over the 3 years, a population reduction of 99.2%. Four distinct water regimes characterized this site: dry, dry to wet transition, flooded, and wet to dry transition. Seedling recruitment was highest in the dry to wet transition and lowest in the flooded water regime, while mortality was highest under flooded and dry water regimes. The mean estimate of population growth (λ) …
Natural Enemies Of The Coccinellidae: Parasites, Pathogens, And Parasitoids, E. W. Riddick, T. E. Cottrell, K. A. Kidd
Natural Enemies Of The Coccinellidae: Parasites, Pathogens, And Parasitoids, E. W. Riddick, T. E. Cottrell, K. A. Kidd
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
We review aspects of the life histories of representative enemies of coccinellids (both entomophagous and phytophagous species) and expose both potential and real effects that they have on life parameters of their hosts. Lady beetles are attacked by a variety of natural enemies (bacteria, fungi, mites, nematodes, protozoa, wasps, flies). Few of these enemies have the ability to alter significantly the population dynamics of their hosts. This review should encourage further research to help define the role of natural enemies in the population dynamics of coccinellids. Ultimately, the conservation of beneficial lady beetles and the management of nuisance and pestiferous …
The Sticky Card: Device For Studying The Distribution Of Adult House Fly (Diptera: Muscidae) Populations In Closed Poultry Houses, Jerome Hogsette, Roger Jacobs, Richard Miller
The Sticky Card: Device For Studying The Distribution Of Adult House Fly (Diptera: Muscidae) Populations In Closed Poultry Houses, Jerome Hogsette, Roger Jacobs, Richard Miller
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
A commercially available sticky card was evaluated for use in adult fly distribution studies in large, closed poultry houses in Florida and Maryland. Results showed that house flies, Musca domestica L., preferred the interior parts of the houses, away from the walls. No vertical stratification was observed in Maryland, but flies in Florida stayed closer to the floor. In-house dispersal studies using fluorescent dust showed that flies would move =50 m, or one-third the length of the house, in Hydrotaea aenescens (Wiedemann) (formerly Ophyra aenescens) were recovered in both states.