Nocturnal migrants following coasts and diurnally mobile individuals may also be channeled into those peninsular areas. |
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Also, freshwater prey species such as bullheads and catfish are more active nocturnally than diurnally and thus should be more available as prey. |
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Experimenters have established the use of a time-compensated sun-compass by homing pigeons and diurnally migrating songbirds. |
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Published data from a lake and diurnally stratified river weir pool are used here to verify a minimum thermocline depth hypothesis proposed by others. |
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Several diurnally active bird species call or sing at night. |
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Many adults migrate diurnally to the surface at night, to feed on the phytoplankton. |
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These two variables are normalized by the time duration between trades and diurnally adjusted. |
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This plane varies diurnally and seasonally with changes in light penetration. |
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Diurnally active mosquitoes are believed to have better developed colour sensitivity than crepuscular or nocturnally active species. |
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