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DESCRIPTION OF THE STUDY AREA
EFFECTS OF SPRING FLOODING ON PLANT COMMUNITY ll
WATERFOWL RESPONSE TO SPRING FLOODING
56 mallard 63 swamp white American elm April area in l965 bait-trapping black duck nests borrow pits broods observed canoe census cattail Cayuga Lake clutch CN CN CN color-mark Cummings Density and frequency derived from sampling dike duckweed East Pool experimental pools flight counts flooded woods flooding regime frequency estimates green-timber impoundment green-winged teal habitat herbaceous herbaceous vegetation hummocks inch d.b.h. increase of 63 July large number mallard and black marsh meters mid-dike Montezuma Refuge nape tag nest density nest search lines nest success nests found nests per acre nests were discovered nests were found netter number of birds number of nests number of waterfowl Parthenocissus quinquefolia percent pipelines pools in September population predators prior to flooding red ash red maple renesting sampling the experimental sensitive fern study area stumps success rate swamp white oak Table timber impoundment toxicodendron transects trapped waterfowl nests West Pool wood duck cavities wood duck nest