Results 91 to 100 of about 170,655 (310)
American Journal of Botany, EarlyView.Abstract Premise Understanding the habitat requirements of imperiled flora is critical for informing ex situ conservation practices, designing effective reintroduction strategies, and understanding how climate change will impact such species, especially in montane regions with high levels of environmental heterogeneity. In southern Appalachia, USA, the
Nicholas J. Chang +6 more
wiley +1 more source
Інтродукція Рослин, 2019 Objective – to study the species composition and structure of spontaneous flora in M.M. Gryshko National Botanical Garden of the NAS of Ukraine (Kyiv). Material and methods. The study was conducted in 2010–2018 on the territory of the Botanical Garden.
O. Shynder
doaj +1 more source
Effect of seed mixture composition and management on competitiveness of herbs in temporary grasslands [PDF]
, 2012 In multispecies grasslands the proportion of different herb species may vary considerably due to low competitiveness of some herbs. To examine the possibility for increasing the competitiveness an experiment with three factors were set up: 1) amount of ...
Eriksen, J. +2 more
core
Forage selection preferences of experienced cows and naïve heifers grazing native tallgrass range during winter [PDF]
, 2011 Beef Cattle Research, 2011 is known as Cattlemen’s Day, 2011Estimating the nutritive value of a grazing animal’s diet is a significant challenge. Description of the botanical composition of a grazed diet is vital in that regard.
Aubel, N.A. +7 more
core +2 more sources
Relationship between seedbank and aboveground botanical composition during spring
New Zealand Plant Protection, 2010 Poor pasture persistence and ingress of weedy species are major concerns for farmers The seedbank gives an indication of what weedy species may establish in pastures and compete with sown species It was hypothesised that the aboveground composition reflects the seedbank The seedbank was sampled and botanical assessments were undertaken during ...
K.N. Tozer +3 more
openaire +2 more sources
High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State
American Journal of Botany, EarlyView.Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording +4 more
wiley +1 more source
Herbs in grasslands - effect of slurry and grazing/cutting on species composition and nutritive value [PDF]
, 2008 Herbs are established in many organic grasslands due to their expected beneficial properties for nutritive value and biodiversity. However, knowledge about grassland herbs is limited. Three mixtures were therefore established at different grazing/cutting
Askegaard, Margrethe +2 more
core
Elevational and latitudinal changes in tree associations and diversity in the Eastern Arc mountains of Tanzania [PDF]
, 1996 A total of 200 variable-area plots covering 20 3 ha containing 4000 trees with a basal area of 921 4 m2 were assessed over a combined elevational range of 410-2180 m in the moist forests of three Tanzanian Eastern Arc mountains: West Usambara, Nguru and ...
Lovett, J.C.
core +1 more source
A leaf phenomics approach for estimating belowground traits in North American licorice
American Journal of Botany, EarlyView.Abstract Premise Selective breeding over thousands of years has prioritized aboveground yield, with little regard for changes belowground. Roots underpin plant growth and resilience, but our knowledge of these critical structures lags behind that of aboveground structures.
Zachary N. Harris +5 more
wiley +1 more source
Productivity and botanical composition of pasture under grazing and fertilizing
Mljekarstvo, 2009 Environmental and economic factors in milk and meat production increase a use of legumes and grass-legumes mixtures, with zero or minimum mineral N as an alternative to grass monoculture withhigh rate of mineral N.
Mladen Knežević +5 more
doaj