Results 111 to 120 of about 323,005 (266)

Carbon isotope geochemistry of organic matter in volcanic paleosols constrains paleo‐environmental variations

Journal of Quaternary Science, EarlyView.
ABSTRACT The Fiorano quarry paleosol developed within the Colli Albani volcanic district (Italy) in the time interval bracketed by the deposition of the Pozzolanelle pyroclastic‐flow unit (365 ± 4 ka) and the emplacement of the Capo di Bove lava flow (277 ± 2 ka).
Eduardo Di Marcantonio, Luca Aldega, Luigi Dallai, Mario Gaeta, Fabrizio Marra   +4 more
wiley   +1 more source

Within-population isotopic niche variability in savanna mammals: disparity between carnivores and herbivores

Frontiers in Ecology and Evolution, 2016
Large mammal ecosystems have relatively simple food webs, usually comprising three – and sometimes only two – trophic links. Since many syntopic species from the same trophic level therefore share resources, dietary niche partitioning features ...
Daryl eCodron, Daryl eCodron, Jacqueline eCodron, Matt eSponheimer, Marcus eClauss   +4 more
doaj   +1 more source

SEGMENTATION AND DIFFERENTIATION OF AGRI-FOOD NICHE MARKETS: EXAMPLES FROM THE LITERATURE [PDF]

Niche marketing has recently received a great deal of attention in the agri-food trade press and in academic circles as a legitimate strategy for small- and medium-sized agri-food firms.
Phillips, Jon C., Peterson, H. Christopher   +1 more
core  

Invasion success of a global avian invader is explained by within-taxon niche structure and association with humans in the native range [PDF]

, 2015
Aim To mitigate the threat invasive species pose to ecosystem functioning, reli- able risk assessment is paramount. Spatially explicit predictions of invasion risk obtained through bioclimatic envelope models calibrated with native species distribution ...
Strubbe, Diederik, Groombridge, Jim J., Jim Groombridge, Hazel Jackson, Erik Matthysen, Jackson, Hazel, Groombridge, Jim, Matthysen, Erik, Diederik Strubbe   +8 more
core   +1 more source

Preservation of stable isotope niche dynamics in squamate museum specimens

Journal of Animal Ecology
Abstract Natural history museums are invaluable resources for large‐scale ecological and evolutionary studies, but certain ecological traits can be challenging to recover, particularly from fluid‐preserved specimens.
Maggie R. Grundler, Erica Bree Rosenblum
openaire   +2 more sources

Long‐Term Operation of Photovoltaic Power Stations Promotes Soil Carbon Sequestration but Induces Stoichiometric C:N:P Imbalance in Desert Ecosystems

Land Degradation &Development, EarlyView.
ABSTRACT Soil carbon‐nitrogen‐phosphorus (C:N:P) stoichiometry governs nutrient cycling and carbon sequestration in desert ecosystems, yet how large‐scale photovoltaic (PV) deployment, a cornerstone of global carbon neutrality, shifts these stoichiometric balances and whether such shifts enhance or degrade long‐term land function remain unresolved over
Anlin Wang, Fenghua Sun, Longfei Chen, Hong Yang, Panxing He, Zhanjun Wang, Xudong Wu, D. M. Sabra, Rui Ma, Jianhua Xiao   +9 more
wiley   +1 more source

Isotopic niche width of the consumer community.

, 2015
Biplot of δ13C and δ15N isotope values (‰) of all consumer individuals of the soft bottom intertidal areas of the bay of the Mont Saint-Michel (A) and Boulogne-Sur-Mer (B).
Jan Vanaverbeke (226659), Bart De Smet (817627), Magda Vincx (119289), Marleen De Troch (652603), Jérôme Fournier (817628)   +4 more
core   +1 more source

Carbon–Phosphorus Limitation Is Associated With Shifts in Microbial Life‐History Strategies Across Vegetation Restoration Modes in Alpine Sandy Land on the Tibetan Plateau

Land Degradation &Development, EarlyView.
ABSTRACT Alpine sandy land on the Tibetan Plateau is fragile, with poorly developed soils, low nutrient availability, and weak biological resilience. Vegetation restoration is widely used to improve soil functioning, yet how microbial nutrient limitation and life‐history strategies vary among restoration modes remains unclear.
Linna Jiang, Zhiyong Zhang, Tao Yang, Gesangquzhen, Jibin Nan, Yuting Wang, Qiongyu Guo, Zhixin Liu, Ruixin Ma, Jinxing Zhou   +9 more
wiley   +1 more source

Optimized Fertilization Balances Microbial Carbon and Nitrogen Use Efficiency: Evidence From Microbial Communities

Land Degradation &Development, EarlyView.
ABSTRACT Optimized fertilization involving reduced mineral N input and organic substitution can alter resource stoichiometry, microbial carbon use efficiency (CUE) and nitrogen use efficiency (NUE). However, how fertilization‐induced resource imbalance reshapes microbial community to regulate CUE and NUE remains unclear. We conducted a field experiment
Yazhen Chen, Yichen Xu, Haobo Xu, Juan Chen, Xiaozhou Huang, Wenqiong Jiang, Jinsong He, Xiaohong Wu, Xinxing He, Jun Wang, Xiaocui Liang, Wende Yan   +11 more
wiley   +1 more source

Intraspecific isotopic niche variation in broad-snouted caiman (Caiman latirostris)

Isotopes in Environmental and Health Studies, 2013
Strategies to minimise intraspecific competition are common in wild animals. For example, individuals may exploit food resources at different levels of the food chain. Analyses of stable isotopes are particularly useful for confirming variations in an intraspecific niche because the chemical composition of animals tends to reflect both the food ...
Marques, Thiago S., Lara, Neliton R. F., Bassetti, Luís A. B., Piña, Carlos Ignacio, Camargo, Plínio B., Verdade, Luciano M.   +5 more
openaire   +3 more sources