Results 31 to 40 of about 778 (177)

Genome duplications, genomic conflict, and rapid phenotypic evolution characterize the Cretaceous radiation of Fagales. [PDF]

open access: yesJ Integr Plant Biol
Fagales show “early burst” model of phenotypic disparification, with morphospace being filled during the early radiation of the Fagales crown and its major families. The elevated levels of phenotypic evolution often correspond to hotspots of gene duplication, whereas species diversification is decoupled from both phenotypic and genomic evolution ...
Yang YY   +10 more
europepmc   +2 more sources

Diversity-Elevation Relationships of Vascular Plants in Austral Temperate Ecosystems Are Strata Dependent. [PDF]

open access: yesEcol Evol
We investigated diversity patterns of vascular plants of overstorey and understorey vegetation separately per stratum and the influence of anthropogenic disturbances along two elevational transects with contrasting slope aspects in a temperate rainforest and alpine scrub in southern Chile.
Michelt T   +3 more
europepmc   +2 more sources

Fires in rainforests: Quantifying litter bed flammability of cool temperate rainforests in eastern Australia. [PDF]

open access: yesAm J Bot
Abstract Premise Rainforests are usually too wet to burn, acting as natural barriers to fire spread and as refuges for biodiversity. However, climate change is increasing the risk of fire incursion into rainforests. Our capacity to manage these impacts is hindered by limited research on rainforest flammability.
Burton JE, Penman TD, Peacock RJ.
europepmc   +2 more sources

Axis Differentiation in Two South American Nothofagus Species (Nothofagaceae) [PDF]

open access: yesAnnals of Botany, 2003
An analysis was carried out on the length, diameter and number of leaves, and the ratios between these variables for current-year growth units (sibling growth units) derived from different nodes of previous-year growth units (parent growth units) of young Nothofagus dombeyi and Nothofagus pumilio trees.
Puntieri, Javier G.   +4 more
openaire   +10 more sources

Cecinothofagus Nieves-Aldrey & Liljeblad (Hymenoptera, Cynipidae) is likely an endoparasitoid of the gall-maker genus Aditrochus Rübsaamen (Hymenoptera, Pteromalidae) [PDF]

open access: yesJournal of Hymenoptera Research, 2022
Paraulax Kieffer and Cecinothofagus Nieves-Aldrey & Liljeblad (Cynipidae: Paraulacini) were long supposed to be gall-makers on southern beeches (Nothofagus, Nothofagaceae).
Jean-Yves Rasplus   +2 more
doaj   +3 more sources

Stamen Morphology in Nothofagus (Nothofagaceae) [PDF]

open access: yesInternational Journal of Plant Sciences, 1998
Stamen morphology is shown to vary considerably in Nothofagus. All species in subgenus Brassospora have heteromorphic, striated epidermal papillae on their anthers. The absence of similar epidermal papillae in other subgenera in Nothofagus or in the putative sister taxa Fagaceae or Betulaceae would suggest that heteromorphic papillae is a derived ...
LEONIE J. SCRIVEN, ROBERT S. HILL
openaire   +2 more sources

Local-scale topoclimate effects on treeline elevations: a country-wide investigation of New Zealand’s southern beech treelines [PDF]

open access: yesPeerJ, 2015
Although treeline elevations are limited globally by growing season temperature, at regional scales treelines frequently deviate below their climatic limit.
Bradley S. Case, Hannah L. Buckley
doaj   +2 more sources

Testing key tenets of pyro-ecophysiology: Indicators of drought response in relation to shoot flammability. [PDF]

open access: yesAm J Bot
Abstract Premise Relationships between flammability and drought tolerance influence vegetation dynamics during fires. A goal of the emerging subdiscipline of pyro‐ecophysiology is to identify ecophysiological traits that determine live fuel flammability, but empirical studies of these relationships are rare.
Sultana N   +9 more
europepmc   +2 more sources

Nothofagus and the associated palynoflora from the Late Cretaceous of Vega Island, Antarctic Peninsula [PDF]

open access: yesPolish Polar Research, 2019
Nothofagaceae fossil leaves and an associated palynoflora from Late Cretaceous sediments of Vega Island, eastern Antarctic Peninsula, are presented. The leaves are described as Nothofagus sp.
Edgardo Romero   +3 more
doaj   +1 more source

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