Results 11 to 20 of about 2,589 (201)

Assessing the diet and seed dispersal ability of non-native sambar deer (Rusa unicolor) in native ecosystems of south-eastern Australia. [PDF]

open access: yesEcol Evol, 2023
Understanding the influence of non‐native herbivores on ecosystems through dietary foraging and seed dispersal requires multiple methodologies. In south‐eastern Australia, sambar deer (Rusa unicolor) are rapidly expanding in range and placing native ecosystems at risk through browsing and as vectors for seed dispersal.
Quin MJ, Morgan JW, Murphy NP.
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

Molecular insights into volatile organic compound sensing and signaling in plants. [PDF]

open access: yesPlant J
SUMMARY Plants interact with their surrounding environment through the perception of a vast and structurally diverse array of volatile organic compounds (VOCs); however, the molecular mechanisms involved remain mostly unknown. Despite the large number of VOCs emitted and perceived by plants, only a small number of phylogenetically distinct, but often ...
Bergman ME   +4 more
europepmc   +2 more sources

Wood Anatomy of Drimys S.S. (Winteraceae) [PDF]

open access: yesAliso, 1988
Qualitative and quantitative data are reported for seven specimens representing six varieties of the four species of Drimys generally recognized. Tracheid length and diameter are correlated both with plant size and with severity of climate: wide, long ...
Carlquist, Sherwin
core   +5 more sources

Toward a phylogenomic classification of magnoliids. [PDF]

open access: yesAm J Bot
Abstract Premise Magnoliids are a strongly supported clade of angiosperms. Previous phylogenetic studies based primarily on analyses of a limited number of mostly plastid markers have led to the current classification of magnoliids into four orders and 18 families. However, uncertainty remains regarding the placement of several families.
Helmstetter AJ   +14 more
europepmc   +2 more sources

Osmoxylon-like fossils from early Eocene South America: West Gondwana-Malesia connections in Araliaceae. [PDF]

open access: yesAm J Bot
Abstract Premise Araliaceae comprise a moderately diverse, predominantly tropical angiosperm family with a limited fossil record. Gondwanan history of Araliaceae is hypothesized in the literature, but no fossils have previously been reported from the former supercontinent.
Wilf P.
europepmc   +2 more sources

Paleobotany reframes the fiery debate on Australia's rainforest edges. [PDF]

open access: yesNew Phytol
Summary The tall eucalypt forests (TEFs) of the Australian tropics are often portrayed as threatened by ‘invasive’ neighboring rainforests, requiring ‘protective’ burning. This framing overlooks that Australian rainforests have suffered twice the historical losses of TEFs and ignores the ecological and paleobiological significance of rainforest margins.
Wilf P, Kooyman RM.
europepmc   +2 more sources

The Neotropical endemic liverwort subfamily Micropterygioideae had circum-Antarctic links to the rest of the Lepidoziaceae during the early Cretaceous. [PDF]

open access: yesEcol Evol
We inferred the position of Micropterygioideae in the molecular phylogeny of the liverwort family Lepidoziaceae for the first time and found circum‐Antarctic links of the subfamily to the rest of the family. Additionally, we estimated the divergence times and inferred the ancestral ranges of the major clades of the family.
Rayos AL, Renner MAM, Ho SYW.
europepmc   +2 more sources

In Vitro and In Vivo Evaluation of the Antischistosomal Activity of Polygodial and 9-Deoxymuzigadial Isolated from Drimys brasiliensis Branches [PDF]

open access: yesMolecules
In the present study, the hexane extract from branches of Drimys brasiliensis (Winteraceae) displayed potent activity against Schistosoma mansoni parasites (100% mortality of the worms at 200 μg/mL). Bioactivity-guided fractionation afforded, in addition
Eric Umehara   +6 more
doaj   +2 more sources

Biological activity of the essential oil of Drimys winteri [PDF]

open access: yesFrontiers in Chemistry
In the Chilean indigenous culture, the tree Drimys winteri (Winteraceae) Canelo is of great importance and is considered the sacred Mapuche tree. It has antibacterial and disinfectant properties and is used in the treatment of various diseases, such as ...
Myriam Navarro   +9 more
doaj   +2 more sources

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