Search Results - "Ratti, John T."

EFFECTS OF PREDATOR REMOVAL ON MALLARD DUCKLING SURVIVAL by PEARSE, AARON T, RATTI, JOHN T

“…We experimentally evaluated the effect of predator removal on mallard (Anas platyrhynchos) duckling survival in south-central Saskatchewan, Canada, in 2000 and…”
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Selenium Levels in Bird Eggs and Effects on Avian Reproduction by RATTI, JOHN T, MOSER, ANN M, GARTON, EDWARD O, MILLER, ROBYN

“…During the 1999 and 2000 spring and summer seasons, we collected and analyzed 544 eggs, 273 from background sites and 271 from mining sites to measure and…”
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Comparison of Avian Communities on Restored and Natural Wetlands in North and South Dakota by Ratti, John T., Rocklage, Ann M., Giudice, John H., Garton, Edward O., Golner, Daniel P.

“…We compared avian use of 39 restored and 39 natural wetlands in North and South Dakota during spring and summer of 1997 and 1998. Wetlands were widely…”
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Further Comparison of Some Statistical Techniques for Analysis of Resource Selection by Alldredge, J. Richard, Ratti, John T.

“…Many biologists and statisticians still have questions about analysis of resource selection data. Consequently, we compared 4 statistical methods for analysis…”
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Mallard Brood Survival and Wetland Habitat Conditions in Southwestern Manitoba by Rotella, Jay J., Ratti, John T.

“…Although the primary mallard (Anas platyrhynchos) breeding area in North America has been greatly modified by agriculture, the relationship between habitat…”
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Distribution and Habitat Selection of Canyon Wrens, Lower Salmon River, Idaho by Johnston, Heather L., Ratti, John T.

“…Because canyon wrens (Catherpes mexicanus) are among the least-studied avian species in North America, we sought to obtain detailed data on distribution and…”
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Comparison of Some Statistical Techniques for Analysis of Resource Selection by Alldredge, J. Richard, Ratti, John T.

“…Four statistical methods for analysis of habitat selection were compared using over 50,000 computer simulations of field data. Comparisons were based on Type I…”
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Preliminary Test of the Ecological Trap Hypothesis by Ratti, John T., Reese, Kerry P.

“…We tested factors associated with predation near forest-field edge and with the ecological trap hypothesis using artificial bird nests containing Japanese…”
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Mallard Brood Movements and Wetland Selection in Southwestern Manitoba by Rotella, Jay J., Ratti, John T.

“…Wetland drainage has heavily impacted mallard (Anas platyrhynchos) breeding areas and decreased the amount of wetland area available to mallard broods. Also,…”
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Long-Term Population Analysis of Gray Partridge in Eastern Washington by Rotella, Jay J., Ratti, John T., Reese, Kerry P., Taper, Mark L., Dennis, Brian

“…Recent studies reported that gray partridge (Perdix perdix) populations have declined throughout Europe and Asia. Gray partridge on the Palouse Prairie of…”
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Use of Methoxyflurane to Reduce Nest Abandonment of Mallards by Rotella, Jay J., Ratti, John T.

“…We used methoxyflurane anesthesia to reduce nest abandonment by incubating dabbling ducks trapped on nests. We anesthetized 80 individuals with only 2…”
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Energy Dynamics, Foraging Ecology, and Behavior of Prenesting Greater White-Fronted Geese by Budeau, David A., Ratti, John T., Ely, Craig R.

“…We collected greater white-fronted geese (Anser albifrons frontalis) on their nesting grounds on the Yukon-Kuskokwim Delta, Alaska, when they arrived and again…”
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Reproductive Ecology of Tundra Swans on the Arctic National Wildlife Refuge, Alaska by Monda, Matthew J., Ratti, John T., McCabe, Thomas R.

“…Management of tundra swans (Cygnus columbianus) is hampered by a lack of information on their nesting and brood-rearing ecology. We studied tundra swan nesting…”
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Living with Wildlife in the Pacific Northwest . By Russell  Link . Published by University of Washington Press, Seattle (Washington), in association with the Washington Department of Fish and Wildlife. $26.95 (paper). viii + 392 p; ill.; index. ISBN: 0‐295‐98386‐8. 2004 by Ratti, John T

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Value of riverine islands to nongame birds by Moser, Ann M., Ratti, John T.

“…The value of riparian zones to nongame birds and islands to nesting waterfowl has been well documented. Therefore, we predicted that nongame birds would have…”
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Living with Wildlife in the Pacific Northwest by Ratti, John T

“…LIVING WITH WILDLIFE IN THE PACIFIC NORTHWEST by Russell Link is reviewed…”
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The Quails, Partridges, and Francolins of the World. Paul A. Johnsgard , Henry Jones by Ratti, John T.

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Reproductive Separation and Isolating Mechanisms between Sympatric Dark- and Light-Phase Western Grebes by Ratti, John T.

“…Studies of dark- and light-phase Western Grebes (Aechmophorus occidentalis) during 1975-1977 revealed highly significant assortative mating by the color…”
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Niche Overlap and Habitat Use by Sympatric Duck Broods in Eastern Washington by Monda, Matthew J., Ratti, John T.

“…We evaluated niche overlap and habitat use among duck broods on Turnbull National Wildlife Refuge (Turnbull NWR). During summer of 1983 and 1984, 485 brood…”
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Test of a Density Index Assumption for Gray Partridge: A Comment by Guthery, Fred S.

“…Rotella and Ratti (1986:523) concluded that, "... it is appropriate to utilize morning counts of [the number of] calling groups... as an index to gray…”
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