Results 81 to 90 of about 32,393 (253)

Human activities modulate reciprocal effects of a subterranean ecological engineer rodent, Tachyoryctes macrocephalus, on Afroalpine vegetation cover

open access: yesEcology and Evolution, 2023
Human activities, directly and indirectly, impact ecological engineering activities of subterranean rodents. As engineering activities of burrowing rodents are affected by, and reciprocally affect vegetation cover via feeding, burrowing and mound ...
Addisu Asefa   +6 more
doaj   +1 more source

Search for impact ejecta at the Paleocene–Eocene boundary

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Almost 10 years have passed since microtektites and microkrystites were reported for the Paleocene–Eocene (P–E) boundary in drill cores and outcrop in New Jersey and in ODP Hole 1051B in the western North Atlantic. The glassy spherules were interpreted to reflect an impact trigger for the Paleocene–Eocene Thermal Maximum (PETM).
Birger Schmitz   +6 more
wiley   +1 more source

Climatic and eustatic controls on the development of a Late Triassic source rock in the Jameson Land Basin, East Greenland [PDF]

open access: yes, 2014
This work was undertaken as part of the continuing work of CASP in East Greenland. The sponsoring companies are thanked for their continued support of this work. Help in the field by T. Kinnaird and useful discussions with A.
Andrews, Steven D.   +3 more
core   +1 more source

Bioturbating bivalves show potential to bioremediate degraded soft sediments by restoring ecosystem function

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Natural recovery of disturbed marine ecosystems can take years, mainly because long‐lived, functionally important species are lost. To regain ecosystem services, the focus of estuarine restoration is shifting from biodiversity metrics to functional restoration.
Natalie Prinz   +5 more
wiley   +1 more source

Effects of Fiddler Crab Burrows on Sediment Properties in the Mangrove Mudflats of Sungai Sepang, Malaysia

open access: yesBiology, 2016
In mangrove ecosystems, litter fall accumulates as refractory organic carbon on the sediment surface and creates anoxic sediment layers. Fiddler crabs, through their burrowing activity, translocate oxygen into the anoxic layers and promote aerobic ...
Mohammad Mokhtari   +3 more
doaj   +1 more source

Extent and duration of marine anoxia during the Frasnian– Famennian (Late Devonian) mass extinction in Poland, Germany, Austria and France [PDF]

open access: yes, 2004
– The intensity and extent of anoxia during the two Kellwasser anoxic events has been investigated in a range of European localities using amultidisciplinary approach (pyrite framboid assay, gamma-ray spectrometry and sediment fabric analysis).
Bond, D.P.G., Racki, G., Wignall, P.B.
core   +1 more source

Improving seed‐based restoration in Eelgrass (Zostera marina) in combined aquarium and field experiments

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Seagrass restoration efforts are being implemented globally to accelerate the slow natural recolonization success. Among the various existing methods, seed‐based approaches offer the greatest scalability for species like Zostera marina, yet these methods remain undeveloped for a number of sub‐tidal systems like the Baltic Sea ...
Ainara Zander   +4 more
wiley   +1 more source

Sedimentary processes and architecture of Upper Cretaceous deep-sea channel deposits : a case from the Skole Nappe, Polish Outer Carpathians [PDF]

open access: yes, 2018
Deep-sea channels are one of the architectonic elements, forming the main conduits for sand and gravel material in the turbidite depositional systems.
Łapcik, Piotr
core   +2 more sources

Ecosystem recovery in restored saltmarshes detected through invertebrate communities

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Saltmarsh ecosystems support rich biodiversity and provide key ecosystem services. Invertebrate communities underpin essential processes such as nutrient cycling and decomposition. However, saltmarshes have been widely degraded by land use change.
Agustina Quadri‐Adrogue   +3 more
wiley   +1 more source

Microbial mats in dinosaur ichnocoenoses

open access: yesSedimentology, EarlyView.
ABSTRACT Until now, the significance of microbial mats in preservation of dinosaur tracks and in reconstructing the palaeoenvironment in which dinosaurs roamed was rarely studied. Dinosaur tracks are commonly found close to ancient aquatic bodies where moist sediment had once allowed footstep registration.
Nora Noffke   +3 more
wiley   +1 more source

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