Research interests: The role of water quality monitoring in conservation, population and community ecology of temperate and tropical aquatic invertebrates; pollution assessment in temperate and tropical streams using macroinvertebrates; the role of streamside forests in the structure and function of stream and river ecosystems; factors affecting the growth and survivorship of trees in riparian forests; the effects of global warming on stream ecosystems; genetic variation and gene flow among populations of stream insects; the effects of diel and seasonal temperature change on aquatic insect populations; evolution of facultative parthenogenesis in aquatic insects; bioenergetics and secondary production of aquatic insects; and the bioassay of toxic materials in aquatic systems.
Ecology and BiologyAdjunct Professor of Biology, Department of Biology, University of Pennsylvania Previous positions: Vice-President, Environmental Group, Academy of Natural Sciences of Philadelphia: 1996 – 1999. Curator, Academy of Natural Sciences of Philadelphia, 1996 – 1999. Associate Curator, Academy of Natural Sciences of Philadelphia, 1988 – 1996. Assistant Curator, Academy of Natural Sciences of Philadelphia, 1978 – 1988.
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A Scientific Foundation for Shaping Riparian Buffer Protection Regulations
Sweeney has research, written and presented extensively on water quality and riparian buffers.
The Science Behind the Need for Riparian Buffer Protection
Sweeney has research, written and presented extensively on water quality and riparian buffers.
Riparian Forest Restoration
An article studying the increased rate of forest restoration by reducing plant competition.