Results 101 to 110 of about 95,822 (213)

From open landscapes to forest refugia: Human encroachment and climate change as drivers of red deer (Cervus elaphus) niche shifts over 21,000 years

Quaternary Environments and Humans
The red deer (Cervus elaphus) is one of the few remnant species of the European Pleistocene megafauna. It occupies a wide range of habitats across the Holarctic, yet the factors shaping the species’ realized ecological niche over time remain poorly ...
Maciej Sykut, Jens-Christian Svenning, Alejandro Gloria Ordonez, Matthew Roy Kerr, Felix Riede   +4 more
doaj   +1 more source

Trophic ecology of Mexican Pacific harbor seal colonies using carbon and nitrogen stable isotopes. [PDF]

PLoS One, 2020
Juárez-Rodríguez M, Heckel G, Herguera-García JC, Elorriaga-Verplancken FR, Herzka SZ, Schramm Y.   +5 more
europepmc   +1 more source

Resource partitioning among stranded aquatic mammals from Amazon and Northeastern coast of Brazil revealed through Carbon and Nitrogen Stable Isotopes. [PDF]

Sci Rep, 2020
Costa AF, Botta S, Siciliano S, Giarrizzo T.   +3 more
europepmc   +1 more source

Nitrification-denitrification in WSP: a mechanism for permanent nitrogen removal in maturation ponds [PDF]

, 2009
A pilot-scale primary maturation pond was spiked with 15N-labelled ammonia (15NH4Cl) and 15N labelled nitrite (Na15NO2), in order to improve current understanding of the dynamics of inorganic nitrogen transformations and removal in WSP systems.
Camargo Valero, M, Curtis, T, Davenport, R, Mara, D, Newton, R, Read L F   +5 more
core  

Group-specific effect of interannual water level fluctuation on consumers trophic niche area

Scientific Reports
The trophic niche area defines the consumer’s ability to utilize a range of food sources and their role in community. However, the trophic niche area might be influenced by a variety of biotic and abiotic factors.
Lukáš Veselý, Timo J. Ruokonen, Fabio Ercoli, Martin Bláha, Miloš Buřič, Paride Balzani   +5 more
doaj   +1 more source

Mercury in Florida Bay fish: spatial distribution of elevated concentrations and possible linkages to Everglades restoration [PDF]

, 2005
Health advisories are now posted in northern Florida Bay, adjacent to the Everglades, warning of high mercury concentrations in some species of gamefish.
Crumley, Peter H., Evans, David W.
core  

Responses of ectomycorrhizal fungi to changes in carbon and nutrient availability [PDF]

, 2001
Ectomycorrhizal (ECM) fungi may receive 20% of the total C fixed by their host plants and are essential components of host nutrient acquisition. As a consequence of the vast physiological diversity that exists among ECM fungi, changes in community ...
Fransson, Petra M.A.
core  

Stable isotopes of dissolved nitrogen in oceanic waters

, 2015
Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South, 22-27 February 2015, Granada ...
Delgado Huertas, Antonio, Granados, Arsenio, Metcalf, Amanda, Mesa, Elena, Galí, Martí, Simó, Rafel, Fernández-Castro, Bieito, Tell, Elena, Duarte, Carlos M.   +8 more
openaire   +1 more source

Temporal and spatial variations in freshwater 14C reservoir effects: Lake Myvatn, Northern Iceland [PDF]

, 2010
Lake Mývatn is an interior highland lake in northern Iceland that forms a unique ecosystem of international scientific importance and is surrounded by a landscape rich in archaeological and palaeoenvironmental sites.
Ascough, P.L., Church, M.J., Cook, G.T., Dugmore, A.J., Dunbar, E., Einarsson, A., Frioriksson, A., Gestsdottir, H., Hastie, Helen, McGovern, T.H., Perdikaris, S.   +10 more
core  

Neanderthals, hypercarnivores, and maggots: Insights from stable nitrogen isotopes

Science Advances
Reconstructions of Eurasian Neanderthal diets based on stable nitrogen isotope ratios (δ 15 N) typically place hominins at the top of the food web, together with, or above, hypercarnivores, such as lions and wolves.
Melanie M. Beasley, Julie J. Lesnik, John D. Speth   +2 more
openaire   +1 more source