(EurekAlert/Chinese Academy of Science Headquarters) Climatic niches describe where species can occur and are essential to determining how they will respond to climate change. Given the fundamental biological differences in plants and animals, previous research proposed that plants may have broader environmental tolerances than animals but are more sensitive to climate. However, a recent study has found that there are actually “general rules” of climatic-niche evolution that span plants and animals. “This is extremely important, because it warns us to pay more attention to the high extinction risks for both plant and animal species, if we cannot slow down climatic changes caused by humans.”
(CNRS) As average temperatures rise every year, it is no longer rare to see plants flower as early as February. Behind this phenomenon is a complex of proteins whose activity is controlled by temperature changes.
(Hartford Courant) Honey bees collect a surprising amount of pollen from plants like goldenrod, poison ivy, clover and ragweed. “Perhaps the lesson to be learned is that honeybees have a much wider range of flowers they enjoy than we humans do.”
(North Country Public Radio) The field of electric ecology: The surface of the earth, and the flowers growing from it, tend to have a more negative charge. Bees are moving and flying around, and tend to be more positive. So just like your hair with a balloon, the hairs on a bumble bee or honey bee tend to bend towards a flower in the presence of its static field. This helps guide the bee into the flower. Honey bees even seem to carry an indication of the flower’s charge back to their hive, helping to communicate the location of target flowers to hive mates.
(Penn State) The newly reported genome sequence of a water lily sheds light on the early evolution of angiosperms. Water lilies have been important to scientists because of their position near the base of the evolutionary tree of all flowering plants. Scientists are interested in the water lily genome to help understand how traits like big showy colorful flowers and floral scents, both of which serve to attract pollinators, have evolved.
(University of York) Researchers at the University of York discovered that foreign plants – often found in gardens and parks – were supporting communities of British insects, including pollinators. For example, solitary bees were found visiting the flowers of non-native agave-leaved sea holly plants. Not surprisingly, however, the greatest numbers and diversity of insects were typically found on native plant species. “It is important to ensure that at least a third of plants are native, as the research suggests that these plants provide the best home for most insects. However, the presence of some non-native plants may help provide a home for unusual or rare British insects that may be struggling to find a home on our native plants.”
(University of Melbourne) New research has revealed that Australia’s oldest flowering plants are 126 million years old and may have resembled modern magnolias, buttercups and laurels. Angiosperm pollen produced by the oldest flowers was recovered from numerous sites across Victoria indicating the large areal extent of flowers during the Early Cretaceous period.
(Entomology Today) When it comes to flowers, the traits humans prefer – things like low pollen production, brighter colors, and changes to the height and shape of plants – are a mixed bag for pollinators. Researchers are now trying to understand what characteristics make ornamental plants attractive to pollinators. “I think this research is an important step to understanding how to design urban and suburban landscapes that are practical for humans and pollinators.”