Results 11 to 20 of about 5,573 (155)
Establishing an Ecuadorian Isoscape: The Importance of Baseline Strontium Data in a Volcanic Landscape. [PDF]
Am J Biol AnthropolABSTRACT Objectives Strontium isotopes (87Sr/86Sr) have been used worldwide to track migrations and identify nonlocal individuals in the past. In South America, these studies often use comparative baseline maps, or isoscapes, established by samples from archaeological fauna and geologic formations. However, baseline research has focused on coastal Peru
Juengst SL, Alvarez MPO.
europepmc +2 more sources
Human land-use changes the diets of sympatric native and invasive mammal species. [PDF]
Ecol Evol, 2023 We simultaneously study the diet of nine native and two invasive mammal species inhabiting three different anthropogenic land‐uses across six bioclimatic regions using environmental DNA and stable isotope analysis. We show that land‐use influences the trophic relationships in invaded communities.
Chiu-Werner A, Jones M.
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Environmental and human factors shape the trophic ecology of a widespread marine predator. [PDF]
J Anim EcolOur study reveals how environmental factors and fishing pressure influence swordfish diet, highlighting trophic shifts under future climate scenarios. We provide a novel framework to strengthen our ability to plan for and manage the redistribution of species under global change ensuring that the energetic needs of predators are met.
Fernández-Corredor E +7 more
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Chromosomal Inversion Associated With Diet Differences in Common Quails Sharing Wintering Grounds. [PDF]
Ecol EvolA large chromosomal inversion in common quails (Coturnix coturnix) is associated with phenotypic traits. In a wintering population in southern Spain, we found all three karyotypes coexisting but showing differences in migratory behavior and diet, as exemplified by the isotopic signature.
Vinagre-Izquierdo C +4 more
europepmc +2 more sources
The role of nutritional impairment in carbon-water balance of silver fir drought-induced dieback. [PDF]
Glob Chang Biol, 2022 Declining silver fir trees show lower foliar concentrations of essential nutrients such as P, K, Cu and Ni than non‐declining trees. This nutritional impairment exacerbates and amplifies the negative effects of drought on tree functioning and growth, considering the relationship of tree nutritional status with water‐use efficiency and growth resilience
González de Andrés E +7 more
europepmc +2 more sources
Orbital Forcing and Evolution of the Southern African Monsoon From Late Miocene to Early Pliocene
Paleoceanography and Paleoclimatology, Volume 38, Issue 9, September 2023., 2023 Abstract The late Miocene‐early Pliocene (7.4‐4.5 Ma) is a key interval in Earth's history where intense reorganization of atmospheric and ocean circulation occurred within a global cooling scenario. The Southern African monsoon (SAFM) potentially played an important role in climate systems variability during this interval.
Allana Queiroz de Azevedo +11 more
wiley +1 more source
Ecology, Volume 104, Issue 5, May 2023., 2023 Abstract Popular as aquarium fish, armored catfishes from South America (Pterygoplichthys spp.) have been introduced and become invasive in tropical and subtropical regions worldwide. These ecosystem engineers can deplete basal resources (e.g., periphyton and detritus), with potential negative effects for native fauna. We studied the trophic ecology of
Yasmín Quintana +2 more
wiley +1 more source
Limnology and Oceanography, Volume 67, Issue S2, Page S6-S18, November 2022., 2022 Abstract As coastal ecosystems become widely recognized for their capacity to sequester carbon (blue carbon), standard accounting methodologies for the generation of carbon credits are being developed. To ensure the applicability of these standards across blue carbon ecosystems, we investigated organic carbon provenance and burial in salt marshes and ...
Johannes Renke Krause +7 more
wiley +1 more source
Functional Ecology, Volume 36, Issue 10, Page 2480-2492, October 2022., 2022 Read the free Plain Language Summary for this article on the Journal blog. Abstract One of the suggested mechanisms behind the success of non‐native plants in recipient ecosystems is competition avoidance with natives by means of different resource‐use strategies, such as deeper water uptake under dry conditions.
Elena Granda +3 more
wiley +1 more source
Agrosystems, Geosciences &Environment, Volume 5, Issue 4, 2022., 2022 Abstract Quantifying the impact of long‐term agricultural management on nutrient fate and transport is critical for developing sustainable management solutions. In this study, the utility of a dual‐isotope approach, combining soil δ15N with analysis of δ18O of phosphate (δ18Op), was assessed at the Riesel Watershed in the Texas Blackland Prairies.
Janae Bos +3 more
wiley +1 more source