Results 141 to 150 of about 38,050 (251)

A 13,000‐Year Record of the Southern Hemisphere Westerlies Inferred From Pollen and Plant Wax Isotopes From the South Atlantic

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 5, May 2026.
Abstract We compare a new pollen record with pre‐existing plant‐wax isotope data from lacustrine sediments retrieved from Mt. Usborne, East Falkland. These records document variations in plant productivity, wind intensity, and moisture availability, to measure the influence of the Southern Hemisphere Westerlies (SHW) over the last 13,000 years.
M. Spoth‐Ascencao   +7 more
wiley   +1 more source

Identification of chemical compounds in Essential oil of Zeravschania membranacea (Boiss.) M.Pimenov

open access: yesJournal of Medicinal Plants, 2005
Background: One of the natural products in plants is essential oil. Their odor, components and properties are depended on factors such as genetics, climate, habitat and so on.
N Yassa, R Golestani, G Bakhshi-khaniki
doaj  

Description of Austrocelis gen. nov. (Diptera: Periscelididae), including the description of eight new species and the diversity and abundance of the species in different strata of the Amazon Rainforest

open access: yesAustral Entomology, Volume 65, Issue 2, May 2026.
Abstract Austrocelis gen. nov. is described based on the following characters: maxillary palpus short and spatulate; setae of the head elongate; face protrudent, with the dorsal portion flattened and oblique, and ventral portion shorter and recessed towards the mouth opening; wing banded, with setae present on dorsal surface of vein R1; surstylus ...
Rosaly Ale‐Rocha, Wayne N. Mathis
wiley   +1 more source

Species Assembly Is Lineage Specific: Phylogenetic Divergent Species Aggregate in Some Lineages but Segregate in Others

open access: yesEcology Letters, Volume 29, Issue 5, May 2026.
Phylogenetic relatedness of co‐occurring species is often used as a proxy for inferring prior assembly processes. However, this approach ignores the possibility that different phylogenetic lineages may have evolved distinct assembly processes. Here, we directly observed assembly processes through changes in the co‐occurrence patterns of 1770 pairs of ...
Keliang Zhang   +9 more
wiley   +1 more source

Megaphylogenetic Specimen-Level Approaches to the Carex (Cyperaceae) Phylogeny Using ITS, ETS, and matK Sequences: Implications for Classification [PDF]

open access: yes, 2016
We present the first large-scale phylogenetic hypothesis for the genus Carex based on 996 of the 1983 accepted species (50.23%). We used a supermatrix approach using three DNA regions: ETS, ITS and matK.
Escudero Lirio, Marcial   +7 more
core  

Invasive plants optimize leaf nitrogen allocation in photosynthesis

open access: yesNew Phytologist, Volume 250, Issue 3, Page 1522-1534, May 2026.
Summary Invasive plants often outcompete co‐occurring native species by expressing acquisitive functional traits that promote high photosynthetic capacity. However, it remains unclear whether these traits are newly evolved in the introduced (‘away’) range or if invaders arrived preadapted with superior traits from their native (‘home’) range.
Robert J. Griffin‐Nolan   +7 more
wiley   +1 more source

Catálogo das plantas vasculares citadas para a ilha de Santa Maria [PDF]

open access: yes, 2010
XIV Expedição Científica do Departamento de Biologia - Santa Maria 2009.Foi construído um catálogo das plantas vasculares citadas para a ilha de Santa Maria com base nas obras de síntese de Trelease (1897), Palhinha (1966), Franco (1971, 1984), Franco &
Cabral, Natália   +2 more
core  

Apiaceae

open access: yes, 1984
Annual or perennial herbs, rarely shrubs, with hollow stems. Leaves alternate or rarely opposite, simple or variously compound; petioles usually sheathing at the base. Stipules minute or wanting. Inflorescence consisting of many-flowered, simple or compound umbels, heads or spikes; umbels and umbellules often involucrate.
openaire   +1 more source

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