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Environmental issues

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Vertebrate dispersal of seed plants through time

Article Abstract:

Various lines of evidence for vertebrate dispersal of plant disseminules through time and scenarios have been reviewed for its origin, together with a summation of this evidence from the Paleozoic, Mesozoic, and Cenozoic. A consideration of outstanding patterns and future possible directions of inquiry have been included.

Author: Tiffney, Bruce H.
Publisher: Annual Reviews, Inc.
Publication Name: Annual Review of Ecology, Evolution and Systematics
Subject: Environmental issues
ISSN: 1543-592X
Year: 2004
Environmental aspects, Plants, Angiosperms, Plant evolution, Gymnosperms

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Scale strength as a cost of rapid growth in sunfish

Article Abstract:

Comparisons among pumpkinseed sunfishes reveal a negative correlation between rapid growth and fish scale strength. Implications of this trade-off, such as swimming efficiency and/or surviving predation attempts, are also discussed.

Author: Arendt, Jeff, Wilson, David S., Stark, Erik
Publisher: Blackwell Publishers Ltd.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2001
Physiological aspects, Growth, Natural selection, Sunfishes, Pumpkinseed (Fish), Scales (Fishes), Sunfishes (Centrarchidae), Scales (Anatomy)

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Diffusional mass transfer at sediment-water interface

Article Abstract:

An analysis is presented on the expression for the diffusive sublayer thickness in sediment-water interface mass transfer, along with a model for its calculation.

Author: Prasad, Boyina V. Ramana, Russell, Manson J., Steinberger, Nancy, Hondzo, Midhat
Publisher: American Society of Civil Engineers
Publication Name: Journal of Environmental Engineering
Subject: Environmental issues
ISSN: 0733-9372
Year: 2000
Models, Diffusion, Diffusion (Physics), Sedimentation and deposition, Deposition (Geology), Sedimentation analysis

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Subjects list: United States, Statistical Data Included, Research
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