Results 161 to 170 of about 5,657,568 (377)

Mechanisms in ecology [PDF]

open access: yes, 2017
New mechanistic philosophy has not examined explanations in ecology although they are based extensively on describing mechanisms responsible for phenomena under scrutiny.
Pâslaru, Viorel
core   +1 more source

Environmental Heterogeneity Drives Secondary Metabolite Diversity from Mesquite Pods in Semiarid Regions

open access: yesEcologies
Secondary metabolites (SM) in plants play crucial pharmacological, ecological, and nutritional roles for humans, wildlife, and livestock. Environmental Heterogeneity (EH) encompasses the variability of biotic and abiotic factors that influence biological
Alfredo Esparza-Orozco   +10 more
doaj   +1 more source

Aquatic Macroinvertebrates of "Bray Creek" and "Frog Alley", Two Unnamed Agricultural Drainages in the Upper Mackinaw River Drainage [PDF]

open access: yes, 2005
Final Report issued June 30, 2005Report issued on: June 30, 2005INHS Technical Report prepared for Dr.
DeWalt, R. Edward
core  

Wetlands as environments of early human occupation: A new classification for freshwater palaeowetlands

open access: yesThe Depositional Record, EarlyView.
A new classification for inland freshwater palaeowetlands to be used in the field or core laboratory by sedimentologists, providing examples from the Guadix Basin (southern Spain). Abstract Present wetlands have proven to be delicate, biodiverse ecosystems, that are natural sinks for CO2 and act as good indicators for climate changes.
S. Pla‐Pueyo   +1 more
wiley   +1 more source

About units and units systems of the ecological values

open access: yesRUDN Journal of Ecology and Life Safety, 2009
At present exist several approaches to classification of characteristics (classes) estimation of ecosystem and geosphere cover of the Earth. At norm-setting and standardizations of man-caused influence to environment it is offered to choose the biotic ...
V N Zykov
doaj  

Eustatic and tectonic controls on mixed carbonate‐siliciclastic ramp deposits in the South Pyrenean foreland basin: The Eocene Alveolina Limestone

open access: yesThe Depositional Record, EarlyView.
The lower Eocene Alveolina Limestone records the global early Eocene transgression, but is equally affected by tectonic movements of the Montsec active thrust located in its hangingwall. Tectonic movements and the early Eocene transgression facilitated a detrital provenance shift in the southern Pyrenean foreland from a southern provenance in the ...
Stefan Schröder   +3 more
wiley   +1 more source

Trace elements, rare earth elements and isotopes of poorly preserved fossils from lower Cretaceous carbonates (Eastern Black Sea): Implications for early diagenetic alteration

open access: yesThe Depositional Record, EarlyView.
Analysing Rare Earth Elements (REEs) and other trace elements together with stable isotope data in poorly preserved belemnites can provide valuable insights into early diagenetic pathways, water‐interaction processes, and even potential redox conditions.
Merve Özyurt
wiley   +1 more source

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