Sentences with phrase «with plant pollens»

Sometimes referred to as ambrosia, bee pollen are compact pellets packed with plant pollens, plant nectar and bee saliva collected by worker honeybees.

Not exact matches

New research shows that hotter weather coupled with higher concentrations of carbon dioxide in the air prompt flowering plants to produce pollen that is far more noxious than pollen of the past.

To get to the bottom of things, he mapped the ages and locations of 1,323 woolly mammoth remains and 576 archaeological sites, and he merged them with data from plant and pollen records, and climate change information from ice cores in Greenland.

Using ancient DNA, along with the remains of pollen, plants, and animals collected from lake sediments, a new study has an answer: about 12,600 years ago.

PLANTS may be spiking their nectar with addictive drugs to lure insects into spreading their pollen.

Pollen and seeds preserved in these middens indicate the climate by analogy with modern plants.

Plants have a complicated relationship with bees: They need the insects to spread their pollen, but — because pollen takes a lot of energy to make — flowers need to make sure each bee doesn't take too much.

New pollen and spore data from the Chinle Formation at the Petrified Forest National Park, Arizona, suggest that a extinction of plants occurred between 213 and 217 million years ago in tandem with an extinction of several reptile groups.

Scientists suspected insect visitors carried pollen between the separate male and female plants, so with help from scaffolding and climbing gear, they spent 76 hours monitoring the plants in 2008 and 2009.

The fossil find, an ancient relative of today's bleeding hearts, poses a new puzzle in the study of plant evolution: did Earth's dominant group of flowering plants evolve along with its distinctive pollen?

Bees are a flower's best friends: The insects land on flowers that catch their eye, pick up pollen with their sticky feet, and spread the plants» genetic material far and wide.

It is well known that bumblebees and other pollinators can tell the difference between plants that will provide them with nectar and pollen and those that won't.

She compared pollen and seed production in plants that were infected with the fungus and plants that were not.

Nagoya, Japan — Dr. Daisuke Maruyama and Professor Tetsuya Higashiyama at the Institute of Transformative Bio-Molecules (WPI - ITbM) of Nagoya University and the JST - ERATO Higashiyama Live - Holonics Project along with their international team have shown by live - cell imaging techniques that flowering plants, such as Arabidopsis thaliana undergo a cell to cell fusion to prevent the attraction of the second pollen tube after fertilization has occurred.

«Our goal is to understand how landscape features affect pollen and seed dispersal for plant species associated with different dispersal vectors,» says Cruzan.

When the bees were familiar with the flowers (after a few visits), five bees per plant species were observed visiting a flower with the anthers (here called pollen - sacs) marked with white UV - active luminous pigment (GP280443, Boesner, Witten, Germany).

In order to investigate whether plants use the bees» safe sites to ensure pollen transfer, the following experiments were carried out in an indoor flight cage at the example of Salvia pratensis L. and Salvia officinalis L. with laboratory B. terrestris as well as with Borago officinalis L. (Boraginaceae) and managed A. mellifera caught in the Botanical Garden (HHU Düsseldorf).

The concept of safe sites for pollen transfer on bees» bodies does not put the major role of bees as pollinators into question, but might focus future research to guidance of bees on flowers to take favorable positions for safe pollen transport by means of floral filtering of suitable pollinators [26], morphological match between pollinators and flowers [54] and floral guides [55] as well as potential strategies of flower visitors to bypass the flowers» restrictions (e.g. bees with specialised hairs for pollen collection from specialised bee - flowers)[26] or strategies of plants via shifting to non-pollen collecting pollinators (e.g. birds)[56 — 57,64 — 66].

To enable sexual reproduction, plants normally use animals as pollen vectors, with their flowers mostly offering nectar [1].

They fly from flower to flower, and with their long, slender bills they transfer the pollen required for the plants» reproduction.

Most leafy house plants don't release pollen, but check with your gardener before buying any shrubs, grasses, or small trees you plan to keep indoors.

Pollen urges us to stick to foods that resemble something we might encounter in nature: eat foods our grandmothers would recognize; purchase foods that come from a plant, not foods that are made in one; and to stick to whole foods or packaged foods with five listed ingredients or less.

Manuka honey is made with pollen gathered from the flowers of the Manuka bush (a medicinal plant), and clinical trials have found this type of honey can effectively eradicate more than 250 clinical strains of bacteria, including resistant varieties such as:

However, even indoor plants can produce pollen associated with allergies.

Sunfood's wildcrafted bee pollen is harvested in the Spanish countryside by beekeepers that treat their bees and plants with the highest respect and regard.

I just don't agree with taking Bees honey as I wonder if it will stop the pollination of plants if bees no longer keep there honey what would be the point in bees getting pollen from plants.

We would discourage them from even entering houses with cats, but if they must be there, make sure cats can't access any part of the plant, including falling leaves, the pollen or the water flowers were stored in; all can all cause life - threatening signs in cats.

About this time of year, dogs with seasonal allergies start scratching and itching because pollen, mold or some beautiful spring plant is the source of their allergies.

, you are lying on the floor of your place looking up, a small draft runs through the room, between the door and the window, and all things seem perfectly still, wind only disturbs concrete in imperceptible ways, or it may take millions of years to be noticed and, as the air runs through the space, all your plants move and all is animated and all is alive somehow, and here are the thoughts of all men in all ages and lands, they are not original with me, and that wind upon your plants is the common air that bathes the globe, and we have no ambitions of universalism, and I'm glad we don't, but the particles of air bring traces of pollen and are charged with electricity, desert sand, maybe sea water, and these particles were somewhere else before they were dragged here, and their route will not end by the door of this house, and if we tell each other stories, one can imagine that they might have been bathed by this same air, regrouped and recombined, recharged as a vehicle for sound, swirling as it moves, bringing the sound of a drum, like that Kabuki story where a fox recognizes the voice of its parents as a girl plays a drum made out of their skin, or any other event, and yet I always felt your work never tells stories, I tend to think that narrative implies a past tense, even if that past was just five seconds ago, one second ago was already the past, and human memory is irrelevant in geological time, plants and fish know not what tomorrow will bring, neither rocks nor metal do, but we all live here now, and we all need visions and we all need dreams, and as long as your metal sculptures vibrate they are always in the Present, and their past is a material truth alien to narrative, but well, maybe narrative does not imply a past tense at all and they are writing their own story while they gently move and breathe, and maybe nothing was really still before the wind came in, passing through the window as if through an irrational portal to make those plants dance, but everything was already moving and breathing in near complete silence, and if you're focused enough you can feel the pulse of a concrete wall and you can feel the tectonic movements of the earth, and you can hear the magma flowing under our feet and our bones crackling like a wild fire, and you can see the light of fireflies reflected in polished metal, and there is nothing magical about that, it is just the way things are, and sometimes we have to raise our voice because the music is too loud and let your clothes move to a powerful bass, sound waves and bright lights, powerful like the sun, blinding us if we stare for too long, but isn't it the biggest sign of love, like singing to a corn field, and all acts of kindness that are not pitiful nor utilitarian, that are truly horizontal as everything around us is impregnated with the deadliest violence, vertical and systemic, poisonous, and sometimes you just want to feel the sun burning your skin and look for life in all things declared dead, a kind of vitality that operates like corrosion, strong as the wind near the sea, transforming all things,

Basic biological research has often been done with plants, such as use of pollen core records to study the distant past or the pea plants used to derive Mendel's laws of genetics.

Dr. Lewis Ziska, a plant physiologist with the U.S. Department of Agriculture's Crop Systems and Global Change Laboratory, and colleagues at the National Allergy Bureau and Aerobiology Canada, analyzed ragweed pollen counts at ten monitoring stations along a south to north transect, from Texas north to Saskatchewan, Canada, from 1995 to 2009.

Patterns and rates of plant migration are documented using our macrofossil studies in combination with pollen stratigraphy.

Always trying to come up with new ways to stop the progress of safe, genetically modified foods, some environmentalists are now claiming that the pollen from such plants will «pollute» nearby organic fields.

When you are doing your planting remember to provide them with nectar and pollen rich flowering plants (which will be needed for the bees to build strong colonies in the Spring).

Avoid plants with double or multi-petalled flowers as they may lack nectar and pollen and insects may have difficulty in gaining access.