Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Life Sciences
Natural History And Conservation Of Bolitoglossine Salamanders In Central Panama, Leslie Caren Brinkman
Natural History And Conservation Of Bolitoglossine Salamanders In Central Panama, Leslie Caren Brinkman
MSU Graduate Theses
I conducted a mark-recapture study to assess the natural history of a Neotropical salamander community in three discrete 4–6 week sampling periods at Chorro Las Yayas, a protected natural area of about 8000 m2 in central Panama, during an extended drought. I captured 87 Bolitoglossa biseriata, 17 Oedipina complex, and 15 O. parvipes. Bolitoglossa biseriata, had a mean mass of 0.8 ± 0.4 g with a mean snout-vent length (SVL) of 31.45 ± 5.30 mm. Bolitoglossa biseriata was active throughout the night, and its detection rate varied with season, air temperature, and amount of precipitation in the previous 24 h. …
Trophic Interactions And The Efficacy Of Milfoil Weevils For Biocontrol Of Eurasian Watermilfoil In Wisconsin Lakes, Kristopher Andrew Maxson
Trophic Interactions And The Efficacy Of Milfoil Weevils For Biocontrol Of Eurasian Watermilfoil In Wisconsin Lakes, Kristopher Andrew Maxson
MSU Graduate Theses
Eurasian water-milfoil (Myriophyllum spicatum L., henceforth “EWM”) is the most heavily managed nuisance submersed aquatic plant in the United States. EWM’s rapid spring growth and formation of dense surface mats inhibits native macrophyte communities, serves as poor-quality habitat for fish and macroinvertebrates, impacts recreation, and can clog water supply infrastructure. The milfoil weevil (Euhrychiopsis lecontei Dietz) has been associated with EWM declines in several states, though natural weevil densities are generally too small to effect control. Augmentative biocontrol has had varied success and fish predation may account for high weevil mortality. Weevils were augmented in 4 northern Wisconsin lakes in …