IN THIS ISSUE

Articles (15)
Proceedings of the Academy of Natural Sciences of Philadelphia
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Articles
158(1), 61-88, (1 April 2009) https://doi.org/10.1635/053.158.0104
KEYWORDS: land cover, land use, stressor-response function, stream ecosystem, biotic integrity, catchment, watershed, management tool, decision-support tool, spatially explicit model, planning, restoration
158(1), 89-105, (1 April 2009) https://doi.org/10.1635/053.158.0105
KEYWORDS: polychlorinated biphenyls, Delaware River Estuary, bioaccumulation
158(1), 107-127, (1 April 2009) https://doi.org/10.1635/053.158.0106
KEYWORDS: allometry, arctic-biomass, Ellesmere Island, fossil forest, late Paleocene-early Eocene, Metasequoia, Nunavut-productivity
158(1), 129-158, (1 April 2009) https://doi.org/10.1635/053.158.0107
KEYWORDS: Alaska, Arctic, biogeography, Climate, Cretaceous, evolution, land bridges, phylogeny, polar, Tertiary
158(1), 159-181, (1 April 2009) https://doi.org/10.1635/053.158.0108
KEYWORDS: Beryciforms, fin spines, Cretaceous-Tertiary boundary Interval
158(1), 221-238, (1 April 2009) https://doi.org/10.1635/053.158.0112
KEYWORDS: Mauritius, reunion, Unionidae, Etheriidae, biogeography
158(1), 239-259, (1 April 2009) https://doi.org/10.1635/053.158.0113
KEYWORDS: Ecuador, taxonomy
158(1), 261-296, (1 April 2009) https://doi.org/10.1635/053.158.0114
KEYWORDS: diverticula, ontogenetic variation, taxonomic variation
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