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Full-Text Articles in Life Sciences

Ecological And Organic Life Safety Concerns Of Hfo-1234yf, Alberni V. Ruiz Aug 2017

Ecological And Organic Life Safety Concerns Of Hfo-1234yf, Alberni V. Ruiz

STAR Program Research Presentations

While at NOAA my research was directed by the inquiry of whether or not HFO-1234yf, a new compound being introduced into coolant system and replacing greenhouse gases HFC, is harmful to organic life. Using the computer program Matlab I was able to develop figures that represented the concentration of HFO-1234yf (HFO) in 12 different tower locations throughout the country. Comparing and contrasting concentrations of this HFO compound at each site led me to the question the possible harmful side effects this compound could bring to organic life due to the fact that concentration levels are increasing, with one factor being …


Recruitment, Survival, And Parasitism Of Monarchs In Residential Gardens And Conservation Areas, Emily A. Geest Mar 2017

Recruitment, Survival, And Parasitism Of Monarchs In Residential Gardens And Conservation Areas, Emily A. Geest

UNO Student Research and Creative Activity Fair

Monarch butterflies (Danaus plexippus) are suffering from declining populations due to habitat loss. To help offset this habitat loss conservationists have encouraged planting milkweed gardens to increase the availability of host plants for larvae. A tachinid fly (Lespesia archippivora) that causes mortality parasitizes monarchs. Understanding the influence these gardens can have on parasitism rates and monarch recruitment is vital to evaluating their effectiveness. I am quantifying egg/larval abundance and demography at conservation areas and residential gardens. Additionally, I am collecting and rearing monarch larvae to compare parasitism rates in both areas. My preliminary results suggest that …