annals-of-botany
Future shifts in precipitation regimes and temperature are expected to affect plant traits dramatically. To date, many studies have explored the effects of acute stresses, but
annals-of-botany
Water limitation is an important determinant of the distribution, abundance and diversity of plant species. Yet, little is known about how the response to limiting water
annals-of-botany
Quaternary glaciations strongly affected the distribution of species from arid and semi-arid environments, as temperature drops were accompanied by strong fluctuations in rainfall. In this
annals-of-botany
Plant survival under extreme drought events has been associated with xylem vulnerability to embolism (the disruption of water transport due to air bubbles in conduits). Despite
annals-of-botany
By the year 2100, atmospheric CO2 concentration ([CO2]a) could reach 800 ppm, having risen from ~200 ppm since the Neogene, beginning ~24 Myr ago. Changing
annals-of-botany
Most crucifer species (Brassicaceae) have small nuclear genomes (mean 1C-value 617 Mb). The species with the largest genomes occur within the monophyletic Hesperis clade (Mandáková
AoB PLANTS
As the single opportunity for plants to move, seed dispersal has an important impact on plant fitness, species distributions and patterns of biodiversity. However, models that
annals-of-botany
Differences in local abundance and ploidy level are predicted to impact the direction of introgression between species. Hu et al. test these hypotheses on Chinese populations
AoB PLANTS
Global climate change is threatening natural ecosystems worldwide. Mountain ecosystems are particularly vulnerable because range expansion or shifts are often not a viable strategy for species
annals-of-botany
Are seeds using heat from fires as a signal to end physical dormancy and germinate?
annals-of-botany
You can see how time affects germination, by measuring the proportion of seeds that germinate after time. But is there a way of examining seed viability without germinating them?
AoB PLANTS
Ramírez and Hokche evaluated the breeding system, sexual system, dichogamy and herkogamy of herbaceous-shrubby communities from the Gran Sabana Plateau, Venezuela