Publications

General goodness-of-fit tests for the Jolly-Seber model are proposed. These tests are based on conditional arguments using minimal sufficient statistics. The tests are shown to be of simple hypergeometric form so that a series of independent contingency table chi-square tests can be performed. The relationship of these tests to other proposed tests is discussed. This is followed by a simulati

No abstract available.

The object of this study was to determine whether interspecific competition modified local geographic distribution, after taking into account the effect of habitat structure. The tendencies for 14 passerine birds to have positive or negative associations were examined, using 7861 sample points in seven native forests on the islands of Hawaii, Maui, and Kauai. All birds were at least partly insecti

To search for the existence of stability gradients in North American breeding land bird communities we operationally defined stability (after Jarvinen 1979) as year-to-year persistence in species composition and distribution of species abundances. From the census data for 174 study plots we derived nine indices that estimate the annual variability of species composition, the species abundance dist

No abstract available.

Wolves (Canis lupus ) probably risk injury while attempting to kill large prey (Muie, 1944; Rausch, 1967; Mech, 1970; Peterson, 1977). Rausch (1967) found that numerous wolf skulls collected in a control program had sustained injuries, probably inflicted by severe blows from moose (Alces alces ). Wolves killed by prey seldom if ever are found. The authors located only three such published records,

In 1981, we studied Caspian Terns (Sterna caspia) and Elegant Terns (S. elegans) nesting at the south end of San Diego Bay, California. Randomly collected Caspian Tern eggs contained signficantly (P < 0.05) higher mean concentrations of DDE (9.30 ppm) than did Elegant Tern eggs (3.79 ppm). DDE may have had an adverse effect on Caspian Tern reproduction but the relationship between hatching success

No abstract available.

No abstract available.

Of in the 15 participating banding stations in Region Park V in the autumn of 1983, only Baltimore's Leakin Park was new. Two others that were active but not reported in 1982 rejoined us in 1983. Four of the 15 stations are home operations, 2 are on Federal land, 2 in city parks, 2 at private schools, 2 at coastal concentration spots, 1 on a wildlife sanctuary, 1 in an abandoned orchard, and 1 in

Autumnal attraction to man-made lighting causes heavy mortality in fledgling Hawaiian seabirds: Newell's Shearwater (Puffinus auricularis newelli), Dark-rumped Petrel (Pterodroma phaeopygia sandwichensis), and Band-rumped Storm-Petrel (Oceanodroma castro). These threatened, endangered, and rare species (respectively) approach and circle lights on their first flight from mountain nesting colonies o

Observations since 1981 have conclusively documented the capacity of California Condors (Gymnogyps californianus) to lay replacement clutches within breeding seasons and to nest successfully on an annual basis. Deliberate encouragement of these capacities led to a better than three-fold increase in reproduction of the remnant population in 1983 and 1984.