Conifer-angiosperm interactions: Physiological ecology and life history. [PDF]
Worldwide, conifers are most successful on sites subject to chronic stresses that limit productivity (low temperatures, nutrient poverty, poor drainage).
Lusk, Christopher H.
core +2 more sources
Past plant use in Jordan as revealed by archaeological and ethnoarchaeological phytolith signatures [PDF]
Ninety-six phytolith samples were analysed from seven archaeological sites ranging from the Pre-Pottery Neolithic to the Classical period and from two ethnoarchaeological sites in Jordan.
Baker, A., Elliott, S., Jenkins, E.L.
core +1 more source
How does the presence of endosperm affect seed size and germination?
Endospermic seeds may germinate more successfully than non-endospermic seeds. The quantity of reserves of endosperm is directly related to seed size; large seeds may present higher percentages of germination than small seeds.
Susana Valencia-Díaz +3 more
doaj +1 more source
Sobre a ocorrência dos estômatos "Graminóides" em espécies do gênero Virola e em outras Dicotiledôneas. [PDF]
"Graminaceous" stomata were observed in Virola (Myristicaceae). Comments are made on the widespread occurrence of this type of stomata as well as the need for additional structural information which can show a variation gradient between the ...
Marilene Marinho Nogueira Braga
doaj +1 more source
Effect of supplementation on the performance of F1 crossbred goats finished in native pasture
The present study aimed to assess the effect of supplementation on the performance of F1 (Boer × females of no defined breed) goats finished in native pasture.
Aloísio Monteiro de Carvalho Júnior +4 more
doaj +1 more source
A new record of fossil wood of Vochysiaceae from the Upper Pleistocene (Arroyo Feliciano Formation), Argentina, South America [PDF]
A new species of Qualeoxylon Suguio & Mussa is described from the Late Pleistocene Arroyo Feliciano Formation of the Gualeguay Basin on eastern Argentina.
Brea, Mariana, Moya, Eliana Vanesa
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The Brazilian standard ABNT NBR 7190 (Associação Brasileira de Normas Técnicas [ABNT], 1997) recommends adopting the mean value of the modulus of elasticity to compression in the direction parallel to the grain (Ec0,m) in the calculation of ...
Arthur Filipe Freire Gomes +5 more
doaj +1 more source
Eocene–early Oligocene climate and vegetation change in southern China: Evidence from the Maoming Basin [PDF]
Although the Eocene-Oligocene climate transition marks a critical point in the development of the ‘icehouse’ global climate of the present little is known about this important change in the terrestrial realm at low latitudes.
Aleksandrova, Galina N. +8 more
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Ecology and co-existence of two endemic day gecko (Phelsuma) species in Seychelles native palm forest [PDF]
In island ecosystems, reptiles play diverse ecological roles as a result of niche broadening, which increases potential niche overlap between species. Ecological niche partitioning is a means of reducing direct competition between coexisting species and ...
Bassett +30 more
core +1 more source
Induced Systemic Resistance (ISR) and Fe Deficiency Responses in Dicot Plants
Plants develop responses to abiotic stresses, like Fe deficiency. Similarly, plants also develop responses to cope with biotic stresses provoked by biological agents, like pathogens and insects. Some of these responses are limited to the infested damaged
Francisco J. Romera +8 more
doaj +1 more source

