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Dispersal of ornithochorous seeds from forest edges in central Florida by T. R. McClanahan; R. W. Wolfe is a Environmental Science article available to read on EtoBox.

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Dispersal of ornithochorous seeds from isolated forests in the phosphate mining region of central Florida, U.S.A., were studied for two seasons (July to November) to determine patterns of dispersal. Three separate studies included (1) dispersal directly from forest edges to early successional herbs; (2) standardized perches (2 m high post with a crossbeam); and (3) snags (dead trees, 11.3+2.8 m high, 21.4+23,3 stem branches). Perch availability was more important than distance in predicting seed types and quantities of bird-dispersed seeds. The greatest concentration of bird-dispersed seeds were found under standard perches (255+249 seeds/mZ/fall) followed by snags (147\_+85 seeds/mZ/fall) and early successional vegetation (3,0+4.1 seeds/mZ/fall). Seed quantities dispersed to snags were positively correIated with the number of stem branches on snags. Seeds beneath standard perches were significantly lighter and less diverse than those found beneath snags. This difference is attributed to the larger percentage of forest or later successional species found beneath snags (73%) as compared to the standard perches (15%). Perches and vegetative structural development should facilitate ec

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Author

T. R. McClanahan; R. W. Wolfe

Publisher

Springer Netherlands; Springer-Verlag; Kluwer Academic Publishers; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 1385-0237)

Published

1987

Language

EN

Field

Environmental Science (Physical Sciences)