Author: Anne Boschen Wright
Publisher:
ISBN:
Category :
Languages : en
Pages : 100
Book Description
Macroinvertebrate Community Structure and Production in an Undisturbed Southeastern Coastal Plain Stream
Macroinvertebrate Community Structure and Ecological Function in Maryland Coastal Plain Streams
Author: Nicholas Arthur Baer
Publisher:
ISBN:
Category : Coastal ecology
Languages : en
Pages : 166
Book Description
Publisher:
ISBN:
Category : Coastal ecology
Languages : en
Pages : 166
Book Description
Landscape, Riparian, and In-stream Parameters as Factors Influencing Macroinvertebrate Community Structure in Coastal Plain Streams of Virginia, U.S.A.
Author: Robert Scott Greenlee
Publisher:
ISBN:
Category :
Languages : en
Pages : 332
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 332
Book Description
Macroinvertebrate Community Structure, Functional Organization, Production, and Energy Flow in a Colorado Plains Stream
Author: Sen-Her Shieh
Publisher:
ISBN:
Category : Freshwater invertebrates
Languages : en
Pages : 428
Book Description
Publisher:
ISBN:
Category : Freshwater invertebrates
Languages : en
Pages : 428
Book Description
The Ecology of Shredder Macroinvertebrates in a Southeastern U.S.A. Coastal Plain Stream
Author: Cheryl Elizabeth Roeding
Publisher:
ISBN:
Category :
Languages : en
Pages : 158
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 158
Book Description
Dynamics of Stream Macroinvertebrate Community Structure, Secondary Production, and Carbon-nitrogen-phosphorus Stoichiometry Along an Urban Development Gradient in Louisville, KY (U.S.A.)
Author: Robert Clayton Johnson
Publisher:
ISBN:
Category : Invertebrates
Languages : en
Pages : 274
Book Description
The future expansion of urban areas is one of the most pervasive threats to the natural environment and the services it provides society. In this dissertation, the dynamics of stream macroinvertebrate community structure, secondary production and carbon-nitrogen-phosphorus stoichiometry along an urban development gradient in Louisville, KY are assessed. Chapter 1 provides a brief review of the effects of urbanization on stream ecosystems with an emphasis on macroinvertebrate communities. In Chapter 2, the effects of urbanization on macroinvertebrate and fish communities are assessed at 24 stream sites that drain catchments with varying degrees of urbanization in Louisville. The analysis revealed strong relationships between urbanization, in-stream disturbances induced by urbanization and both biotic communities. In chapter 3, the temporal variation in macroinvertebrate community structure of six streams in Louisville is assessed. From this analysis, it was apparent that temporal variation in macroinvertebrate taxon abundances throughout the year, which primarily resulted from taxon life history differences, can affect the interpretation of biotic indices used to assess the biological integrity of streams. In chapter 4, macroinvertebrate secondary production (i.e. the rate of macroinvertebrate biomass accumulation over time) we quantified at each of the six sites assessed in Chapter 3, and identifies possible regulatory factors of macroinvertebrate production along the urban gradient. In this analysis, macroinvertebrate secondary production was strongly associated with changes in the quantity and quality of food resources at each site. Finally, in chapter 5, macroinvertebrate production data (Chapter 4) are combined with the carbon-nitrogen-phosphorus body elemental contents of each macroinvertebrate taxon to determine how differences in macroinvertebrate community structure and secondary production at each site affect the flow of these vital elements through macroinvertebrate communities. Strong relationships we observed between phosphorus loading into streams, macroinvertebrate production, and the carbon-nitrogen-phosphorus stoichiometry of macroinvertebrate communities at each site. Overall, these results suggest that stream biodiversity is greatly reduced with increasing urbanization in Louisville. Moreover, in addition to losses of biodiversity, secondary production stoichiometric analyses, which are relatively unstudied phenomena in urban streams, indicate potential changes in the roles of these communities in the fundamental ecosystem processes of energy flow and nutrient cycling.
Publisher:
ISBN:
Category : Invertebrates
Languages : en
Pages : 274
Book Description
The future expansion of urban areas is one of the most pervasive threats to the natural environment and the services it provides society. In this dissertation, the dynamics of stream macroinvertebrate community structure, secondary production and carbon-nitrogen-phosphorus stoichiometry along an urban development gradient in Louisville, KY are assessed. Chapter 1 provides a brief review of the effects of urbanization on stream ecosystems with an emphasis on macroinvertebrate communities. In Chapter 2, the effects of urbanization on macroinvertebrate and fish communities are assessed at 24 stream sites that drain catchments with varying degrees of urbanization in Louisville. The analysis revealed strong relationships between urbanization, in-stream disturbances induced by urbanization and both biotic communities. In chapter 3, the temporal variation in macroinvertebrate community structure of six streams in Louisville is assessed. From this analysis, it was apparent that temporal variation in macroinvertebrate taxon abundances throughout the year, which primarily resulted from taxon life history differences, can affect the interpretation of biotic indices used to assess the biological integrity of streams. In chapter 4, macroinvertebrate secondary production (i.e. the rate of macroinvertebrate biomass accumulation over time) we quantified at each of the six sites assessed in Chapter 3, and identifies possible regulatory factors of macroinvertebrate production along the urban gradient. In this analysis, macroinvertebrate secondary production was strongly associated with changes in the quantity and quality of food resources at each site. Finally, in chapter 5, macroinvertebrate production data (Chapter 4) are combined with the carbon-nitrogen-phosphorus body elemental contents of each macroinvertebrate taxon to determine how differences in macroinvertebrate community structure and secondary production at each site affect the flow of these vital elements through macroinvertebrate communities. Strong relationships we observed between phosphorus loading into streams, macroinvertebrate production, and the carbon-nitrogen-phosphorus stoichiometry of macroinvertebrate communities at each site. Overall, these results suggest that stream biodiversity is greatly reduced with increasing urbanization in Louisville. Moreover, in addition to losses of biodiversity, secondary production stoichiometric analyses, which are relatively unstudied phenomena in urban streams, indicate potential changes in the roles of these communities in the fundamental ecosystem processes of energy flow and nutrient cycling.
Archiv Für Hydrobiologie
MACROINVERTEBRATE COMMUNITY STRUCTURE IN A FLORIDA SAND BOTTOM STREAM.
Macroinvertebrate Community Structure and Function in Seasonal, Low-land, Tropical Streams Across a Pristine-rural-Urban Land-use Gradient
Assessing Impacts of Animal Agriculture on Macroinvertebrates in Intermittent Coastal Plain Streams in the Southeastern USA
Author: Stephanie Nicole Davis
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
Book Description