In this study, habitat preferences of the European Rollers (Coracias garrulus) in the Northern Anatolia was investigated, in 2014 breeding season. Total of 31 breeding pairs in 4 certain roller sites were located. The average distance between the breeding territories was 1.2 km in one of the roller sites with 17 pairs. Both solitary and colonial breeding pairs were recorded. Overall, 8, 2 and 2 nests (total of 12 nests) were located on sand quarries, concrete buildings and abandoned magpie nests on electrical poles, respectively. The habitat preferences were determined within a radius of 300 m and 1000 m around the nest site for the breeding and foraging habitats, respectively. We conducted the spatial analysis in ArcGIS 10.5 using Corine Land Cover 2012 database. Agricultural areas were the major land cover types where the European Rollers breed in our study. Use of unfavorable habitats and other nest sites including magpie nests necessitated a conservation program for the European Rollers in the study area.
Endosulfan is a persistent insecticide that is still used in some countries even though it is life-threatening and banned in the agricultural struggle. The solubility of pesticides in water is negligible. It is known that pesticides with better solubility in organic solvents have different solubility when the dielectric constants of these solvents are taken into account. The polymeric structure of arginine was modified with methacrylate to be a functional monomer, and it was immobilized on a solid support, poly(HEMA), and finally, poly(2-hydroxyethyl methacrylate-arginine methacrylate) was obtained and used as an effective adsorbent. The effect of organic solvents on endosulfan adsorption was investigated for the first time in the literature. Endosulfan was removed from alcohol media by using this polymeric structure synthesized by exploiting alcoho-phobic interaction in this work. Nuclear magnetic resonance (NMR), elemental analysis, and Fourier transform infrared spectroscopy (FTIR) methods were used for the structural characterization and therefore to prove successful synthesis of cryogels. Morphological characteristics were also investigated by scanning electron microscopy (SEM), an N adsorption method, and swelling test. Adsorption experiments were carried out against varying interaction time and concentration parameters in the batch system. Since the alcohol used as a solvent has a pH value close to the ionic strength of drinking water, no change was made in the pH of the solution. Endosulfan molecules dissolved in solvents such as toluene, dichloromethane, acetone, and chloroform were removed using poly(HEMA-ArMA) cryogels to determine the solvent effect on the adsorption of endosulfan. As expected, the removal of endosulfan from the solvent toluene provided the best result. Although the adsorption in toluene is almost 9.5 times higher than that in ethanol, the use of toluene in the adsorption process due to its chemical structure is not feasible. Thus, experiments were carried out in ethanol.
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