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Table 2 Names of hypotheses and variables included for each hypothesis used to explain the probability from stopover sites by autumn-migrating dabbling ducks from 1995 to 2009. Predicted direction of effect included in parentheses

From: The effect of weather on the decision to migrate from stopover sites by autumn-migrating ducks

Hypothesis Name

Variables Included

WINDSALOFTINDEX

Winds aloft index (+)

PRECIPINDEX

Precipitation index (−)

CLOUDCOVER

Cloud cover (−)

CLOUDCOVERINDEX

Cloud cover index (+)

CLOUDHEIGHTINDEX

Cloud height index (+)

TEMPERATURE

Temperature (−)

MEANDAILYTEMPCHG24HR

Difference in daily mean temperature (−)

DAILYMINT

Minimum daily temperature (−)

PRESSURE

Barometric pressure at dusk (+)

PRESSURECHANGE

Change in barometric pressure (+)

HABITAT

Foraging habitat index (−)

ORIENTATION

Cloud height index (+), Cloud cover (−)

THERMAL

Temperature (−), Difference in daily mean temperature (−), Surface wind speed (+)

INTEGRATED

Winds aloft index (+), Precipitation index (−), Cloud cover index (+)

DATE

Julian date (+)

Null

Intercept only