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.

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.

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.

Models, Diffusion, Diffusion (Physics), Sedimentation and deposition, Deposition (Geology), Sedimentation analysis

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