| assessing watershed-scale, long-term hydrologic impacts of land-use change using a gis-nps model. | land-use change, dominated by an increase in urban/impervious areas, has a significant impact on water resources. this includes impacts on nonpoint source (nps) pollution, which is the leading cause of degraded water quality in the united states. traditional hydrologic models focus on estimating peak discharges and nps pollution from high-magnitude, episodic storms and successfully address short-term, local-scale surface water management issues. however, runoff from small, low-frequency storms d ... | 2000 | 11029115 |
| phylogeny and new taxonomy of the booted eagles (accipitriformes: aquilinae). | we present a phylogeny of all booted eagles (38 extant and one extinct species) based on analysis of published sequences from seven loci. we find molecular support for five major clades within the booted eagles: nisaetus (10 species), spizaetus (4 species), clanga (3 species), hieraaetus (6 species) and aquila (11 species), requiring generic changes for 14 taxa. additionally, we recommend that the long-crested eagle (lophaetus occipitalis) and the black eagle (ictinaetus malaiensis) remain in th ... | 2017 | 28183111 |
| conjugate and disjunctive saccades in two avian species with contrasting oculomotor strategies. | we have recorded with the magnetic search coil method the spontaneous saccades of two species of predatory birds, which differ in the relative importance of panoramic and foveal vision. the little eagle (haliaetus morphnoides) hunts from great heights and has no predators, whereas the tawny frogmouth (podargus strigoides) hunts from perches near the ground, is preyed upon, and frequently adopts an immobile camouflage posture. we find that both birds spend most of the time with their eyes confine ... | 1985 | 4009240 |
| effects of calibration on l-thia gis runoff and pollutant estimation. | urbanization can result in alteration of a watershed's hydrologic response and water quality. to simulate hydrologic and water quality impacts of land use changes, the long-term hydrologic impact assessment (l-thia) system has been used. the l-thia system estimates pollutant loading based on direct runoff quantity and land use based pollutant coefficients. the accurate estimation of direct runoff is important in assessing water quality impacts of land use changes. an automated program was develo ... | 2006 | 16112801 |