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Browse publications authored by our scientists. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

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January 1, 1987

Incorporating activity time in harmonic home range analysis Incorporating activity time in harmonic home range analysis

The amount of time an animal spends in particular areas is an important aspect of estimating its home range and activity pattern. Calculations of home range using the harmonic mean can be modified to reflect the amount of time or the type of activity observed at each location. The relative time spent at each location may be used to calculate a time-weighted harmonic home range and...

Authors

Michael D. Samuel, Edward O. Garton

Cooperative Research Units

January 1, 1987

Aggressive encounters between tundra swans and greater white-fronted geese during brood rearing Aggressive encounters between tundra swans and greater white-fronted geese during brood rearing

Interspecific aggression in waterfowl (Anatidae) is relatively common (McKinney 1965; Kear 1972; Savard 1982, 1984), but interactions leading to mortality of one of the combatants are rarely-observed in the wild. A recent debate (Livezey and Humphrey 1985a, 1985b; Nuechterlein and Storer 1985a, 1985b; Murray 1985) has centered on the proximate and ultimate causes of interspecific...

Authors

Craig R. Ely, David A. Budeau, Una G. Swain

Ecosystems Mission Area, Cooperative Research Units, Alaska Science Center

January 1, 1952

Wildlife research: Or disaster! Wildlife research: Or disaster!

No abstract available.

Authors

Arnold O. Haugen

Cooperative Research Units