A. Michelsen

Details der Publikationsliste

Zeitraum

1994 - 2009

Anzahl

14

Co-Autoren

Nonvascular contribution to ecosystem NPP in a subarctic heath during early and late growing season. (2009)

Campioli, M., Samson, R., Michelsen, A., Jonasson, S., Baxter, R., Lemeur, R.

Abstract Bryophytes and lichens abound in many arctic ecosystems and can contribute substantially to the ecosystem net primary production (NPP). Because of their growth seasonality and their...

Installation of River and Drain Instrumentation Stations to Monitor Flow and Water Quality and Internet Data Sharing (2008)

Fahy, M. P., Michelsen, A., Srinivasan, R., Creel, B., Brown, C., Sheng, Z.

Over the last five years, the Paso del Norte Watershed Council’s Coordinated Water Resources Database and GIS Project (Project) was developed to provide improved access to regional water resources...

Fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem (2007)

Rinnan, R, Michelsen, A, Bååth, E, Jonasson, S

Soil microbial biomass in arctic heaths has been shown to be largely unaffected by treatments simulating climate change with temperature, nutrient and light manipulations. Here, we demonstrate that...

Ergosterol content in ericaceous hair roots correlates with dark septate endophytes but not with ericold mycorrhizal colonization (2007)

Olsrud, M, Michelsen, A, Wallander, H

The relationship between ergosterol content in ericaceous hair roots and ericoid mycorrhizal (ErM) colonization versus dark septate endophytic (DSE) hyphal colonization was examined in a dwarf...

Response of ericoid mycorrhizal colonization and functioning to global change factors (2004)

Olsrud, M, Melillo, JM, Christensen, TR, Michelsen, A, Wallander, H, Olsson, PA

Here, we investigated effects of increased atmospheric CO2 concentration, increased temperatures, and both factors in combination on ericoid mycorrhizal colonization, mycorrhizal functioning and...

Plant nitrate use in deciduous woodland: the relationship between leaf N, N-15 natural abundance of forbs and soil N mineralisation (2004)

Falkengren-Grerup, U, Michelsen, A, Olsson, MO, Quarmby, C, Sleep, D

Our aim was to study whether the in situ natural abundance N-15 (delta(15)N)-values and N concentration of understory plants were correlated with the form and amount of mineral N available in the...

Global change and arctic ecosystems: is lichen decline a function of increases in vascular plant biomass (2001)

Cornelissen, J. H. C., Callaghan, T. V., Alatalo, J. M., Michelsen, A., Graglia, E., Hartley, A. E., ...

Macrolichens are important for the functioning and biodiversity of cold northern ecosystems and their reindeer-based cultures and economies. 2We hypothesized that, in climatically milder parts of the...

Long-term manipulation of the microbes and microfauna of two subarctic heaths by addition of fungicide, bactericide, carbon and fertilizer (2000)

Schmidt, IK, Ruess, L, Bååth, E, Michelsen, A, Ekelund, F, Jonasson, S

Nutrient availability is a major constraint to plant production and carbon storage in arctic ecosystems, but there are few studies coupling processes in the decomposer and microbial food web and the...

DoD Weapon Systems Software Management Study. Appendix C. Airborne Systems. (1998)

Bradshaw, J. F., Foard, T. R., Hazan, P. L., Ginsberg, H., Michelsen, A.

This appendix to the DoD Weapon Systems Software Management Study conducted by APL contains information on Airborne Systems presented in more detail than is given in the main report. The specific...

A new biophysical method to determine the gain of the acoustic trachea in bushcrickets (1994)

Michelsen, A., Rohrseitz, K., Stumpner, A.

Abstract A method is described for measuring the gain (i.e., the change of amplitude and phase angle) for sounds that propagate to the internal surface of the tympana in ears working as pressure...

EVALUATING THE EFFECTIVENESS OF CONSERVATION WATER-PRICING PROGRAMS

Huffaker, R., Whittlesey, N., Michelsen, A., Taylor, R., McGuckin, T.

Charging farmers increasing block prices for irrigation deliveries is advocated as a means of encouraging agricultural water conservation in the West. We formulated a model of a hypothetical...