Results 61 to 70 of about 13,655 (229)
Determinação de ptaquilosídeo no leite de vacas por CLAE-UV
Semina: Ciências Agrárias, 2019 Samambaias do gênero Pteridium são reconhecidas como responsáveis por casos de intoxicação em bovinos. As espécies de Pteridium comumente encontradas no Brasil são P. arachnoideum e P. caudatum.
Debora da Silva Freitas Ribeiro +3 more
doaj +1 more source
Geoarchaeology, Volume 41, Issue 1, January/February 2026.ABSTRACT Modern studies show that soil erosion results in a loss of ecosystem function, particularly fertility, and is a cause of declining agricultural yields. However, despite the well‐attested high rates of soil erosion across Roman and medieval Europe there appears to have been little or no soil‐associated decline in agricultural production—the ...
Ben Pears +5 more
wiley +1 more source
Semina: Ciências Agrárias, 2001 The authors describe a case of acute intoxication by bracken fern ( Pteridium aquilinum) in a cattle herd raised in the city of Reserva, Parana State. A total of 25 animals died due to intoxication caused by the ingestion of large amounts of the toxic ...
Alexandre Amorim Monteiro +5 more
doaj +1 more source
Determination of Ellenberg’s indicator values along an elevational gradient in Central Black Sea Region of Turkey [PDF]
, 2013 The Central Black Sea Region has an unique vegetation because different vegetation types occurred. In the present study plant communities (from Mediterranean-type to temperate forests) in the Central Black Sea Region along an elevational gradient was ...
Kutbay, H.G., Surmen, B.
core
Measurement of Ungulate Palatability and Browsing Pressure on Japanese Flora
Ecological Research, Volume 41, Issue 1, January 2026.Estimation of palatability and browsing pressure are key techniques for ecosystem management. We compared four methods to estimate palatability based on browsing scar survey and proposed the reference palatability values for the Japanese flora as plant ecological trait.
Fumito Koike, Masayo Isozaki
wiley +1 more source
The life cycles of cryptogams [PDF]
, 1991 Meiosis and karyogamy are recognized as control points in the life cycle of cryptogams. The control of meiosis is evidently complex and in yeast, and by analogy in all cryptogams, involves progressive gene activation.
Bell, Peter R.
core +2 more sources
Linking forest cover, soil erosion and mire hydrology to late-Holocene human activity and climate in NW Spain [PDF]
, 2014 This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) which permits non-commercial use, reproduction and distribution of the work without further ...
Aira Rodríguez MJ +23 more
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Journal of Vegetation Science, Volume 37, Issue 1, January/February 2026.Shifting grazing regimes alter grasslands, however the relative roles of species turnover versus intraspecific variation (ITV) underpinning trait change are poorly understood. Using a 20‐year grazing experiment in the Scottish uplands,we found that grazing‐driven functional change in grass communities are primarily driven by ITV rather than species ...
Susan E. Eshelman +5 more
wiley +1 more source
Scientific Papers Animal Science and Biotechnologies, 2023 Study results show that over 70% of the permanent grasslands are affected by soil acidity and moisture excess. In addition, 54% of the floristic structure of these grasslands is made up of invasive species of no value as fodder plants.
Maria Sauer +7 more
doaj
Genes Translocated into the Plastid Inverted Repeat Show Decelerated Substitution Rates and Elevated GC Content. [PDF]
, 2016 Plant chloroplast genomes (plastomes) are characterized by an inverted repeat (IR) region and two larger single copy (SC) regions. Patterns of molecular evolution in the IR and SC regions differ, most notably by a reduced rate of nucleotide substitution ...
Kuo, Li-Yaung +3 more
core +1 more source