Results 21 to 30 of about 199,664 (342)

Geoadditive Regression Modeling of Stream Biological Condition [PDF]

, 2010
Indices of biotic integrity (IBI) have become an established tool to quantify the condition of small non-tidal streams and their watersheds. To investigate the effects of watershed characteristics on stream biological condition, we present a new ...
Hothorn, Torsten, Maloney, K. O., Potapov, Sergej, Schmid, Matthias, Weller, D. E.   +4 more
core   +2 more sources

Diatoms Are Selective Segregators in Global Ocean Planktonic Communities

mSystems, 2020
Diatoms are a major component of phytoplankton, believed to be responsible for around 20% of the annual primary production on Earth. As abundant and ubiquitous organisms, they are known to establish biotic interactions with many other members of plankton.
Flora Vincent, Chris Bowler
doaj   +3 more sources

Nearshore Benthic Mapping in the Great Lakes: A Multi-Agency Data Integration Approach in Southwest Lake Michigan

Remote Sensing, 2021
The Laurentian Great Lakes comprise the largest assemblage of inland waterbodies in North America, with vast geographic, environmentally complex nearshore benthic substrate and associated habitat.
Molly K. Reif, Brandon S. Krumwiede, Steven E. Brown, Ethan J. Theuerkauf, Joseph H. Harwood   +4 more
doaj   +1 more source

Seasonal, synoptic, and diurnal-scale variability of biogeochemical trace gases and O2 from a 300-m tall tower in central Siberia [PDF]

, 2008
We present first results from 19 months of semicontinuous concentration measurements of biogeochemical trace gases (CO2, CO, and CH4) and O2, measured at the Zotino Tall Tower Observatory (ZOTTO) in the boreal forest of central Siberia.
Andres, Andrew C. Manning, Bakwin, Bakwin, Bakwin, Battle, Bender, Bender, Chapin, Chevillard, Davis, Denman, Denning, Dlugokencky, Dlugokencky, Dlugokencky, Draxler, Elena A. Kozlova, Friborg, Friedlingstein, García, Gloor, Haszpra, Heimann, Hurst, Karstens, Kasischke, Keeling, Keeling, Keeling, Keeling, Keeling, Keeling, Khalil, Khvorostyanov, Kocache, Kozlova, Kurbatova, Levin, Lloyd, Lloyd, Machta, Manning, Manning, Martin Heimann, Novelli, Novelli, Prentice, Ramaswamy, Randerson, Rödenbeck, Röser, Schulze, Shibistova, Shibistova, Shvidenko, Sohngen, Stephens, Stephens, Stephens, Styles, Tans, Tarasova, Thomas Seifert, Tohjima, van der Molen, Van der Werf, Vermeulen, Walter, Warneck, Weiss, Wirth, Yegor Kisilyakhov, Yoshikawa, Zimov, Zimov   +75 more
core   +1 more source

Evaluation and identification of wild lentil accessions for enhancing genetic gains of cultivated varieties.

PLoS ONE, 2020
Domesticated lentil has a relatively narrow genetic base globally and most released varieties are susceptible to severe biotic and abiotic stresses. The crop wild relatives could provide new traits of interest for tailoring novel germplasm and cultivated
Mohar Singh, Sandeep Kumar, Ashwani Kumar Basandrai, Daisy Basandrai, Nikhil Malhotra, Deep Rattan Saxena, Dorin Gupta, Ashutosh Sarker, Kuldeep Singh   +8 more
doaj   +1 more source

Insights into the Effects of Hydroxycinnamic Acid and Its Secondary Metabolites as Antioxidants for Oxidative Stress and Plant Growth under Environmental Stresses

Current Issues in Molecular Biology, 2023
Plant immobility renders plants constantly susceptible to various abiotic and biotic stresses. Abiotic and biotic stresses are known to produce reactive oxygen species (ROS), which cause comparable cellular secondary reactions (osmotic or oxidative ...
Sindiswa Khawula, Arun Gokul, Lee-Ann Niekerk, Gerhard Basson, Marshall Keyster, Mihlali Badiwe, Ashwil Klein, Mbukeni Nkomo   +7 more
doaj   +1 more source

Strusture, biomass and production of the biotic component of the ecosystem of an growing eutrophic reservoir

Biosystems Diversity, 2018
Using our own data and data from the literature, we assessed the total biomass of the biotic component of the ecosystem of the Ivankovo Reservoir (Upper Volga, Russia), a eutrophic reservoir which is becoming overgrown with macrophytes.
A. I. Kopylov, D. B. Kosolapov, V. I. Lazareva, N. M. Mineeva, E. G. Pryanichnikova   +4 more
doaj   +1 more source

Measuring and Linking the Missing Part of Biodiversity and Ecosystem Function: The Diversity of Biotic Interactions

Diversity, 2020
Biotic interactions are part of all ecosystem attributes and play an important role in the structure and stability of biological communities. In this study, we give a brief account of how the threads of biotic interactions are linked and how we can ...
Pedro Luna, Erick J. Corro, Reuber Antoniazzi, Wesley Dáttilo   +3 more
doaj   +1 more source

Extracting Additional Information From Biotic Index Samples [PDF]

, 2017
Macroinvertebrates were collected from a small midwestern stream over a 3-year period as part of a non-point source pollution study. Temporal and spatial variability in standard biotic index values (BIs) were computed and compared with variability ...
Lillie, Richard A, Schlesser, Roger A
core   +2 more sources

Predicting spring barley yield from variety-specific yield potential, disease resistance and straw length, and from environment-specific disease loads and weed pressure [PDF]

, 2008
For low-input crop production, well-characterised varieties increase the possibilities of managing diseases and weeds. This analysis aims at developing a framework for analyzing grain yield using external varietal information about disease resistance ...
Hansen, P.K., Hovmøller, M.S., Kristensen, K., Pinnschmidt, H.O., Østergård, H.   +4 more
core   +1 more source