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Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
Biological Soil Crusts In A Northeastern Pine Barren: Composition And Ecological Effects, Jessica Gilbert
Biological Soil Crusts In A Northeastern Pine Barren: Composition And Ecological Effects, Jessica Gilbert
Honors Theses
Biological soil crusts (BSCs), otherwise known as cryptogamic soil crusts, biocrusts, or cyanobacterial crusts, are soil aggregations hosting diverse biotic communities. They are composed of cyanobacteria and algae, and generally have a covering of moss and/or lichen. BSCs are typically found in arid to semi-arid regions throughout the world, and are integral soil stabilizers, moisture retainers, and nitrogen fixers in these communities. Along with these factors, BSCs are able to impact germination and establishment of plants, either as an accompanying influence, or direct result of those listed above. BSCs have yet to be formally described in the inland northeastern United …
The Effects Of Soil Ph On The Molting Success Of Blacklegged Ticks (Ixodes Scapularis): A Laboratory Experiment, Daniel Rice
The Effects Of Soil Ph On The Molting Success Of Blacklegged Ticks (Ixodes Scapularis): A Laboratory Experiment, Daniel Rice
Honors Theses
Ixodes scapularis, or the black-legged tick, is the major vector of Lyme disease in the U.S. I. scapularis has expanded its range in recent decades, making the study of factors affecting its distribution a high priority. Studying the effects of various conditions in the soil could help in predicting range expansions, because ticks spend the majority of their lives in contact with the soil. We investigated the effects of soil pH on the molting success of engorged I. scapularis nymphs collected from Eastern Chipmunks (Tamias striatus). The experiment was conducted in a laboratory to control for covariates such as temperature …
The Effects Of Soil Ph And Texture On The Molting Success And Survival Of Blacklegged Ticks (Ixodes Scapularis): A Field Experiment, Colleen Cook
Honors Theses
The blacklegged tick (Ixodes scapularis) is the primary vector of Borrelia burgdorferi, the causative agent of Lyme disease. When a tick is not questing or feeding, the majority of its life is spent within the soil. Abiotic factors within soil have been shown to affect tick molting and survival across all life stages. Soil pH, however, has not been heavily investigated. In this field study, I investigated the effects of soil pH and texture on engorged nymphal ticks. Two sites were chosen to encompass the extremes of soil pH in the region; the Albany Pine Bush in Albany, NY has …
The Effects Of Soil Ph And Composition On Blacklegged Tick Molting Success Avian Window Strike Mortality On Union College Campus, Kaleigh Ahern
The Effects Of Soil Ph And Composition On Blacklegged Tick Molting Success Avian Window Strike Mortality On Union College Campus, Kaleigh Ahern
Honors Theses
The blacklegged tick (Ixodes scapularis) is the one of the most significant vectors of infectious disease in the world and most notorious for its ability to transmit Borrelia burgdorferi, the bacteria that causes Lyme disease. Because both the range of the blacklegged tick and the annual incidence of Lyme disease have been increasing in North America over the past several decades, it is becoming increasingly important to better understand how environmental factors contribute to blacklegged tick survival. Past studies have shown that these factors include precipitation levels, extent of groundcover, plant and animal community composition, temperature, and soil type. Because …