Results 41 to 50 of about 7,667 (209)

Determination of Geochemical Bio-Signatures in Mars-Like Basaltic Environments [PDF]

open access: yes, 2017
Bio-signatures play a central role in determining whether life existed on early Mars. Using a terrestrial basalt as a compositional analog for the martian surface, we applied a combination of experimental microbiology and thermochemical modeling ...
Abramov   +91 more
core   +2 more sources

Meta-bauxite deposit in the Tavşanlı Zone, NW Turkey: A new locality for gem-quality diaspore formation

open access: yesJournal of Asian Earth Sciences: X, 2022
The tectonic units of Sakarya Zone (Pontides) and Tavşanlı Zone (Anatolides) are exposed in the Mihalıççık area of central Anatolia. A Cretaceous accretionary complex that forms the İzmir-Ankara-Erzincan suture zone separates the units.
İbrahim Gündoğan
doaj   +1 more source

Seed Dispersal Spectrum of Woody Species in South Ecuadorian Dry Forests: Environmental Correlates and the Effect of Considering Species Abundance [PDF]

open access: yes, 2011
This study examines the seed dispersal spectrum of the tropical dry forests of Southern Ecuador, in an effort to contribute to the knowledge of the complex dynamics of tropical dry forests.
Cruz Rot, Marcelino de la   +2 more
core   +2 more sources

A new Kalidium species (Amaranthaceae s. l.) from northern Central Asia

open access: yesTurczaninowia, 2022
Kalidium juniperinum Sukhor. et Lomon. is described as a species new to science. It is similar to K. foliatum in having a short leaf blade but differs by the presence of numerous slender, prostrate, or ascending stems forming mats vs.
Александр Петрович Сухоруков   +2 more
doaj   +1 more source

Animal‐mediated seed dispersal: A review of study methods

open access: yesApplications in Plant Sciences, EarlyView.
Abstract By dispersing seeds, animals provide ecological functions critical for the ecology, evolution, and conservation of plants. We review quantitative and empirical approaches and emerging technologies to quantify processes and patterns of animal‐mediated seed dispersal (zoochory) across its phases: from predispersal to postdispersal.
Noelle G. Beckman   +10 more
wiley   +1 more source

Interactions between bubble and particles of key minerals of diasporic bauxite through the extended DLVO theory

open access: yesInternational Journal of Mining Science and Technology, 2022
The flotation of diasporic bauxite is to separate diaspore (valuable mineral) from aluminosilicate minerals (gangue minerals, mainly including kaolinite, illite and pyrophyllite), and the microscopic interaction force between the two types of minerals ...
Ningning Zhang   +9 more
doaj   +1 more source

Ecology of Sydney plant species : part 10, Monocotyledon families Lemnaceae to Zosteraceae [PDF]

open access: yes, 2013
Ecological data in tabular form are provided on 668 plant species of the families Lemnaceae to Zosteraceae, 505 native and 163 exotics, occurring in the Sydney region, defined by the Central Coast and Central Tablelands botanical subdivisions of New ...
Benson, Doug, McDougall, Lyn
core  

Vegetation Re-development After Fen Meadow Restoration by Topsoil Removal and Hay Transfer [PDF]

open access: yes, 2009
We investigated the effects of different restoration treatments on the development of fen meadow communities: (1) depth of topsoil removal, with shallow (circa 20 cm) and deep (circa 40 cm) soil removal applied, (2) transfer of seed-containing hay, and ...
Bakker   +62 more
core   +4 more sources

Aquatic and Littoral Successions in Various Post‐Mining Sites—Patterns and Possible Use in Ecological Restoration

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Vegetation succession in aquatic and littoral habitats has received much less attention than terrestrial habitats have. We sampled differently aged successional stages at five different types of post‐mining sites, that is, sandpits, stone quarries, clay quarries, brown coal spoil heaps and black coal subsidences, across the Czech Republic ...
Anna Müllerová   +2 more
wiley   +1 more source

Germination of Archontophoenix cunninghamiana (Australian king palm) seeds based on different temperatures and substrates

open access: yesOrnamental Horticulture, 2017
Archontophoenix cunninghamiana or Australian King Palm, is a very popular ornamental palm in Brazil. Although A. cunninghamiana is propagated by seeds, few studies have reported on seed germination of this species.
Petterson Baptista da Luz   +2 more
doaj   +1 more source

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