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Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
Ecological Problems With Iowa's Invasive And Introduced Fishes, Neil P. Bernstein, John R. Olson
Ecological Problems With Iowa's Invasive And Introduced Fishes, Neil P. Bernstein, John R. Olson
Journal of the Iowa Academy of Science: JIAS
Since the time of European settlement, at least 59 non-indigenous fish species have been introduced, reached, or moved within Iowa waters. At least 28 nonnative fish species have been introduced into, or reported from Iowa waters since settlement. Of that number, 10 are established at this time through natural reproduction. In addition, many species of native fishes have been translocated within the state, and we provide documentation for 31 of these species. Two translocated species, gizzard shad (Dorosoma cepedianum) and yellow bass (Marone mississippiensis), have had adverse impacts on Iowa's aquatic ecosystems. While many introductions are thought to be benign, …
Agenda: A Cartography Of Governance: Exploring The Province Of Environmental Ngos, University Of Colorado Boulder. School Of Law, University Of Colorado Boulder. Environmental Program, University Of Tulsa. National Energy-Environment Law & Policy Institute, University Of Colorado Boulder. United Government Of Graduate Students
Agenda: A Cartography Of Governance: Exploring The Province Of Environmental Ngos, University Of Colorado Boulder. School Of Law, University Of Colorado Boulder. Environmental Program, University Of Tulsa. National Energy-Environment Law & Policy Institute, University Of Colorado Boulder. United Government Of Graduate Students
A Cartography of Governance: Exploring the Province of Environmental NGOs (April 7-8)
Presented by: the Colorado Journal of International Environmental Law and Policy on April 7 & 8, 2001. Symposium director: Lakshman D. Guruswamy.
Co-sponsored by: University of Colorado School of Law, University of Colorado Environmental Program, University of Tulsa National Energy-Environment Law and Policy Institute, University of Colorado United Government of Graduate Students.
The papers and edited proceedings of the conference will be published in a special symposium issue of the Colorado Journal of International Environmental Law & Policy (CJIELP).
"The first objective of the Symposium was to understand and explore the growing importance of nongovernmental actors, and delineate the manner …
Worms, Nematoda, Scott Lyell Gardner
Worms, Nematoda, Scott Lyell Gardner
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Nematodes are the most speciose phylum of metazoa on earth. Not only do they occur in huge numbers as parasites of all known animal groups, but also they are found in the soils, as parasites of plants, and in large numbers in the most extreme environments, from the Antarctic dry valleys to the benthos of the ocean. They are extremely variable in their morphological characteristics, with each group showing morphological adaptations to the environment that they inhabit. Soil-dwelling forms are extremely small; many marine species have long and complex setae; and parasitic species manifest amazingly great reproductive potential and large …
Biodiversity And Decomposition In Experimental Grassland Ecosystems, Johannes M. H. Knops, David A. Wedin, David Tilman
Biodiversity And Decomposition In Experimental Grassland Ecosystems, Johannes M. H. Knops, David A. Wedin, David Tilman
School of Biological Sciences: Faculty Publications
We examined the impact of biodiversity on litter decomposition in an experiment that manipulated plant species richness. Using biomass originating from the experimental species richness gradient and from a species used as a common substrate, we measured rates of decomposition in litterbags in two locations: in situ in the experiment plots and in an adjacent common garden. This allowed us to separate the effects of litter quality and decomposition location on decomposition. We found that plant species richness had a significant, but minor negative effect on the quality (nitrogen concentration) of the biomass. Neither litter type nor location had a …