MEIOFAUNA IN TROPICAL MONTANE STREAMS: BIOTIC AND ABIOTIC FACTORS REGULATING COMMUNITIES

Biotic and abiotic controls on the ecosystem significance of consumer excretion in two contrasting tropical streams

JONATHAN P. BENSTEAD*, WYATT F. CROSS , JAMES G. MARCH, WILLIAM H. M CDOWELL § , ALONSO RAMÍREZ AND ALAN P. COVICH *Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, U.S.A. Odum School of Ecology, University of Georgia, Athens, Georgia, GA, U.S.A. Biology Department, Washington and Jefferson College, Washington, PA, U.S.A. Department of Natural Resources and the Environm...

Uncertain biotic and abiotic interactions in benthic communities

Abiotic and biotic factors regulating dynamics of bacterioplankton in a large shallow lake.

Lake Võrtsjärv (270 km2, mean depth 2.8 m, Estonia) is an eutrophic and turbid lake (Secchi depth 0.5-1 m) with a high nutrient load (total nitrogen 1-2 mg N l(-1), total phosphorus approximately 50 microg P l(-1)) leading to a highly productive phytoplankton population (average chlorophyll a concentration 24 microg l(-1)). Seasonal dynamics of the main members of pelagic microbial loop - phyto...

Abiotic and Biotic Factors Regulating Inter-Kingdom Engagement between Insects and Microbe Activity on Vertebrate Remains

Abstract: A number of abiotic and biotic factors are known to regulate arthropod attraction, colonization, and utilization of decomposing vertebrate remains. Such information is critical when assessing arthropod evidence associated with said remains in terms of forensic relevance. Interactions are not limited to just between the resource and arthropods. There is another biotic factor that has b...

Assembly of root-associated bacteria communities: interactions between abiotic and biotic factors.

Nitrogen (N) deposition in many areas of the world is over an order of magnitude greater than it would be in absence of human activity. We ask how abiotic (N)and biotic (plant host and neighborhood) effects interact to influence root-associated bacterial (RAB)community assembly. Using 454 pyrosequencing, we examined RAB communities from two dominantal pine tundra plants, Geum rossii and Descham...