Results 71 to 80 of about 35,626 (266)

Integrative taxonomy supports DNA barcoding in revealing an abundant cryptic species in the United States Coastal Plain

open access: yesJournal of Systematics and Evolution, EarlyView.
We present the most densely sampled phylogeny of Carex section Lupulinae to date (107 specimens) and describe herein a new cryptic species for science from the southern United States, which is locally abundant and found in well‐explored and densely populated areas. Combining DNA sequences with morphometric data obtained from 299 samples, we Demonstrate
Étienne Lacroix‐Carignan   +4 more
wiley   +1 more source

Clonal propagation of ornamental forms of Ulmus L. and Acer L. in a dendrological park Sofiivka of the NAS of Ukraine

open access: yesІнтродукція Рослин, 2000
Clonal propagation of ornamental forms of elm trees (Ulmus L.) and maple trees (Acer L.) by means of autumn cutting and bud grafting during winter, spring, late spring and early summer periods of vegetation was studied. Ornamental forms of Ulmus L.
V.F. Sobchenko
doaj   +1 more source

An eco‐evolutionary optimality model explains the acclimated temperature response of photosynthesis

open access: yesNew Phytologist, EarlyView.
Summary The optimal temperature of photosynthesis (Topt) generally increases with plant growth temperature. Changes in Topt are associated with changes in the maximum carboxylation capacity at 25°C (Vcmax25) and the maximum electron transport rate at 25°C (Jmax25). The ratio between Jmax25 and Vcmax25 declines with warming.
Wenyao Gan   +5 more
wiley   +1 more source

Risk of root intrusion by tree and shrub species into sewer pipes in Swedish urban areas [PDF]

open access: yes, 2012
Blockages in sewer pipes caused by roots are very common and several tree and shrub species are reported to be particularly likely to cause root intrusion. This study examined the relative ability of roots of different species to intrude into urban sewer
Ann-Mari Fransson   +23 more
core   +1 more source

Turgor loss point explains climate‐driven growth reductions in trees in Central Europe

open access: yesPlant Biology, EarlyView.
Leaf turgor loss point of native tree species shows a high predictive power over the observed growth anomalies in Central Europe during the extensive drought period between 2018 and 2020. Abstract As climate change thrives, and the frequency of intense droughts is affecting many forested regions, a mechanistic understanding of the factors conferring ...
N. Kunert, I. K. Münchinger, P. Hajek
wiley   +1 more source

Inventory and Characterization of the Riparian Zone of the Current and Jacks Fork Rivers [PDF]

open access: yes, 1998
The ecological, recreational, and economic value of the 134 mile (216 km) riparian corridor within the Ozark National Scenic Riverways (ONSR) is of great interest to land managers and conservationists.
Lyon, Jonathan, Sagers, Cynthia L.
core   +2 more sources

Natural and anthropogenic forest fires recorded in the Holocene pollen record from a Jinchuan peat bog, northeastern China [PDF]

open access: yes, 2008
Pollen and charcoal particles from a Jinchuan peat (northeastern China) were examined to investigate the fire origin and interaction between climate, vegetation, fire and human activity during the Holocene.
Chu, G   +5 more
core   +1 more source

Functional traits explain growth response to successive hotter droughts across a wide set of common and future tree species in Europe

open access: yesPlant Biology, EarlyView.
Functional traits can explain significant tree growth reductions in response to the 2018–2020 drought for a wide set of 71 species including angiosperms and gymnosperms. Moreover, four distinct response types emerged: ‘Sufferer’, ‘Late sufferer’, ‘Recoverer’ and ‘Resister’, with gymnosperms predominately appearing as ‘Sufferer’ and ‘Late sufferer ...
L. Kretz   +8 more
wiley   +1 more source

THE RADIOGRAPH OF AN INVASIVE SPECIES (ULMUS PUMILA)

open access: yesAgricultura, 2015
Ulmus pumila is a woody species appreciated for some purposes but problematic due to its invasive character. Because of its qualities, siberian elm is now used in landscaping design and as well in hybridization proceses.
Denisa Hort   +4 more
doaj   +1 more source

Demographic history and genetic differentiation of an endemic and endangered Ulmus lamellosa (Ulmus)

open access: yesBMC Plant Biology, 2020
Background Ulmus lamellosa (one of the ancient species of Ulmus) is an endemic and endangered plant that has undergone climatic oscillations and geographical changes.
Huimin Hou   +8 more
doaj   +1 more source

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