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Evaluation of roost culling as a management strategy for reducing invasive rose-ringed parakeet (Psittacula krameri) populationsNARA Subscribed
Rose-ringed parakeets ( Psittacula krameri ) are one of the most widespread invasive avian species worldwide. This species was introduced to the island of Kaua‘i, Hawai‘i, USA, in the 1960s. The rapidly increasing population has caused substantial economic losses in the agricultural and tourism industries. We evaluated the efficacy of a roost culling program conducted by an independent contractor from March 2020 to March 2021....
Thiols in wetland interstitial waters and their role in mercury and methylmercury speciationNARA Subscribed
Organic sulfhydryl compounds, or thiols, are ligands that strongly complex class B metals such as Hg and methylmercury (MeHg). We determined the concentration profiles of five low‐molecular‐weight thiols (cysteine, thioglycolic acid, glutathione, N ‐acetyl‐L‐cysteine, and 3‐mercaptopropionic acid) in sediment interstitial waters, at a vertical resolution of 1 cm, in three contrasting freshwater and brackish wetlands in Canada....
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