Results 31 to 40 of about 121,467 (287)

Estimates of woody biomass and mixed effects improve isoscape predictions across a northern mixed forest

Frontiers in Ecology and Evolution, 2023
Contemporary methods used to predict isotopic variation at regional scales have yet to include underlying distributions of the abundance of isotopic substrates.
John L. Berini, John L. Berini, Bryan Runck, Jody Vogeler, David L. Fox, James D. Forester, James D. Forester   +6 more
doaj   +1 more source

Stable isotope analysis provides new information on winter habitat use of declining avian migrants that is relevant to their conservation [PDF]

, 2012
Winter habitat use and the magnitude of migratory connectivity are important parameters when assessing drivers of the marked declines in avian migrants. Such information is unavailable for most species.
BJM Stutchbury, BN Smith, C Eraud, C Fry, CM Perrins, CP Chamberlain, D Lack, D Norman, DI Pearson, DJ Pain, DS Wilcove, E Yohannes, FJ Sanderson, G Gory, GD Farquhar, GJ Morel, I Burfield, I Newton, JA Grey, Jason Newton, JC Sealy, JC Vogel, JF Kelly, JM Neto, John W. Mallord, JR Ehleringer, K Risely, KA Hobson, Karl L. Evans, KL Evans, L Jenni, L Svensson, L Zwarts, LA Hill, M Cardillo, M Schaub, MB Hernquist, MJA Werger, MS Webster, N Cooper, N Saino, Ofer Ovadia, P Chantler, P Marra, RA Robinson, RF Inger, RP Ellis, S Bearhop, S Bensch, S Oppel, S Shultz, SD Newsome, SH Ambrose, Shai Markman, T Szép, T Szép, TB Coplen, TB Oatley, TS Reichlin, WJ Peach   +59 more
core   +4 more sources

Measurement of proton-distribution radii of neutron-rich nitrogen isotopes [PDF]

EPJ Web of Conferences, 2019
Measurement of root-mean-square radii of proton distributions of 17–22N from charge-changing cross section shows the emergence of thick neutron skin towards the neutron-drip line.
Bagchi Soumya, Kanungo Rituparna, Horiuchi Wataru, Hagen Gaute, Morris Titus D., Stroberg Steven Ragnar, Suzuki Toshio, Ameil Frederic, Atkinson Joel, Ayyad Yassid, Cortina-Gil Dolores, Dillmann Iris, Estradé Alfredo, Evdokimov Alexey, Farinon Fabio, Geissel Hans, Guastalla Giulia, Janik Rudolf, Kaur Satbir, Knöbel Ronja, Kurcewicz Jan, Litvinov Yury, Marta Michele, Mostazo Magdalena, Mukha Ivan, Nociforo Chiara, Ong Hooi Jin, Pietri Stephane, Prochazka Andrej, Scheidenberger Christoph, Sitar Branislav, Strmen Peter, Takechi Maya, Tanaka Junki, Tanaka Yoshiki, Tanihata Isao, Terashima Satoru, Vargas Jossitt, Weick Helmut, Winfield John Stuart   +39 more
doaj   +1 more source

Stable Isotopes Unveil Dietary Trends in the Samnite and Peligni Communities of Opi Val Fondillo and Sulmona S. Lucia (V–VI Centuries BCE, Abruzzo, Central Italy)

Biology, 2023
The purpose of this study is to gain insights into the subsistence activities and nutrition of the Samnite and Peligni populations who lived in the Abruzzo region (Italy) during the Iron Age. The samples under investigation are from Opi Val Fondillo (AQ)
Iuri Icaro, Inmaculada Alemán, Joan Viciano   +2 more
doaj   +1 more source

Different Responses in Root Water Uptake of Summer Maize to Planting Density and Nitrogen Fertilization

Frontiers in Plant Science, 2022
Modifying farming practices combined with breeding has the potential to improve water and nutrient use efficiency by regulating root growth, but achieving this goal requires phenotyping the roots, including their architecture and ability to take up water
Yang Gao, Jinsai Chen, Guangshuai Wang, Zhandong Liu, Weihao Sun, Yingying Zhang, Xiaoxian Zhang   +6 more
doaj   +1 more source

Dual stable isotope abundances unravel trophic position of estuarine nematodes [PDF]

, 2005
The role and quantitative importance of free-living nematodes in marine and estuarine soft sediments remain enigmatic for lack of empirical evidence on the feeding habits and trophic position of most nematode species.
BOUILLON, S, GALLUCCI, F, Moens, Tom
core   +1 more source

The fate of nitrogen in the Zarin-Gol River receiving trout farm effluent

Scientific Reports, 2023
This study investigated the Zarrin-Gol River ecosystem in Iran to trace organic matter in the food web and evaluate the impact of aquaculture farm effluent using stable isotopes of nitrogen (δ15N) and carbon (δ13C).
Altin Ghojoghi, Rasoul Ghorbani, Rahman Patimar, Abdolrassoul Salmanmahiny, Rahmat Naddafi, Abdolazim Fazel, Timothy D. Jardine   +6 more
doaj   +1 more source

Determining trophic niche width: a novel approach using stable isotope analysis [PDF]

, 2004
1. Although conceptually robust, it has proven difficult to find practical measures of niche width that are simple to obtain, yet provide an adequate descriptor of the ecological position of the population examined. 2.
Adams, C.E., Bearhop, S., Fuller, R.A., Macleod, H., Waldron, S.   +4 more
core   +1 more source

Nitrogen isotope variations in the Solar System [PDF]

Nature Geoscience, 2015
The solar wind, cometary ices, and inner Solar System bodies exhibit distinct nitrogen isotopic compositions. A synthesis of these analyses suggests that these distinct reservoirs may be the result of early fractionation processes.
Füri, Evelyn, Marty, Bernard
openaire   +2 more sources

Marine sediment nitrogen isotopes and their implications for the nitrogen cycle in the sulfate-methane transition zone

Frontiers in Marine Science, 2023
IntroductionRecent work has proposed that the nitrogen isotopes in marine sediments can be impacted by anaerobic oxidation of methane (AOM), since nitrogen uptake by anaerobic methanotrophic archaea (ANME) modifies the nitrogen isotope compositions of ...
Xin Yang, Xin Yang, Yihao Zhang, Yihao Zhang, Xiaoming Sun, Xiaoming Sun, Xiaoming Sun, Li Xu, Li Xu, TingTing Chen, TingTing Chen   +10 more
doaj   +1 more source