Results 111 to 120 of about 132,054 (356)

Palynological study of the Liabeae (Asteraceae)

open access: yesSmithsonian Contributions to Botany, 1986
NH-Botany ; NMNH ; SISP ; Peer ...
Robinson, Harold E., Marticorena, C.
openaire   +3 more sources

Sensitivity of the grassland-forest ecotone in East African open woodland savannah to historical rainfall variation [PDF]

open access: yes, 2014
. Fossil pollen records provide key insight into the sensitivity of terrestrial ecosystems to climate change at longer time scales. However, tracing vegetation response to relatively modest historical climate fluctuations is often complicated by the ...
Gelorini, Vanessa   +2 more
core   +1 more source

Genistein induced by Frankliniella occidentalis feeding confers resistance to insect herbivores in peanut

open access: yesNew Plant Protection, EarlyView.
The Tianfu 22 (TF22) variety was identified as resistant to thrips based on field screening carried out over two consecutive years. Metabolomic profiling showed that thrip‐infested TF22 leaves exhibited differentially accumulated metabolites, particularly enriched in phenylpropanoid and secondary metabolite biosynthesis.
Qian Wang   +10 more
wiley   +1 more source

Contributions to the flora and vegetation of Kagbeni (Mustan District, Central Nepal) [PDF]

open access: yes, 2006
Kagbeni and its irrigated oasis are surrounded by subdesert dwarf scrubland. In the present study, a list of 78 species of vascular plants is presented for Kagbeni and its immediate surroundings, supplemented with data on the distribution of the species ...
Kasperek, Gerwin
core  

Use of Spotted Knapweed/Star Thistle (Asterales: Asteraceae) as the Primary Source of Nectar by Early Migrating Monarch Butterflies (Lepidoptera: Nymphalidae) from Beaver Island, Michigan [PDF]

open access: yes, 2019
Recent observations over the past decade suggest that the invasive star thistle (aka spotted knapweed (Centaurea stoebe L.) provides much of the nectar that supports monarch butterflies (Danaus plexippus) in their pre-migratory and early migratory flight
Douglas, Matthew M
core   +2 more sources

Three decades of experimental nitrogen fertilization increases the frequency of a defensive plant morph

open access: yesOikos, EarlyView.
Resources, such as nitrogen, are widely hypothesized to underlie the expression and evolution of plant defenses to herbivory. However, resource availability can affect selection on plant defense traits in contrasting ways: resource availability can 1) weaken selection on defense traits by reducing the costs of herbivory, or 2) strengthen selection on ...
Mia M. Howard   +3 more
wiley   +1 more source

ASTERACEAE-ANTHEMIDEAE

open access: yesBothalia, 2002
REDUCTION OF FOVEOLINA ALBIDA TO FOVEOLINA ...
openaire   +3 more sources

Una nueva combinación en Asteraceae. A new combination in Asteraceae

open access: yesActa Botanica Malacitana, 2010
A new combination in Asteraceae Palabras clave. Asteraceae, Carlina, taxonomía, Península Ibérica, Islas Baleares. Key words. Asteraceae, Carlina, taxonomy, Iberian Peninsula, Balearic Islands.
Juan Antonio Devesa Alcaraz   +1 more
openaire   +2 more sources

Population genetics and phylogenetic study of the genus Tolpis in the Azores and Madeira [PDF]

open access: yes, 2012
Dissertação de Mestrado, Biodiversidade e Biotecnologia Vegetal, 22 de Junho de 2012, Universidade dos Açores.O género Tolpis é constituído por aproximadamente 12 espécies que se encontram distribuídas por África, Europa e pelas ilhas da Macaronésia.
Silva, Lurdes da Conceição Borges
core  

Presence of the “Threatened” \u3ci\u3eTrimerotropis Huroniana\u3c/i\u3e (Orthoptera: Acrididae) in Relation to the Occurrence of Native Dune Plant Species and the Exotic \u3ci\u3eCentaurea Biebersteinii\u3c/i\u3e [PDF]

open access: yes, 2018
Trimerotropis huroniana Wlk. is a “Threatened” species in Michigan and Wisconsin with a distribution limited to open dune systems in the northern Great Lakes region of North America.
Marshall, Jordan M, Storer, Andrew J
core   +2 more sources

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