Sentences with phrase «in plant pollination»

Bats also play an important ecological role in plant pollination and seed dissemination.

Not exact matches

At Key Stage 2 (Age 7 + to 11, Years 4 to 6) schools have to teach the following: Growth and reproduction; the main stages of the human life cycle; reproduction; the parts of the flower [for example, stigma, stamen, petal, sepal] and their role in the life cycle of flowering plants, including pollination, seed formation, seed dispersal and germination.»

The formation of the seed completes the process of reproduction in plants (started with the development of flowers and pollination), with the embryo developed from the zygote and the seed coat from the integuments of the ovule.

Bees play an essential role in food security: Many crops, trees, and plants rely on bees for pollination.

Pollination is needed for reproduction in flowering plants.

In the traditional Ecuadorian plantings that Kearney studies, cacao achieves a mere 3 to 5 percent pollination.

For example, in Argentina pollination by Bombus terrestris increases seed production and establishment of scotch broom, a pernicious plant invader.

The result: «The pollination of chilli plants is considerably better on the plots of land that are farmed in the traditional way, even when slash - and - burn practices are used,» says biologist Robert Paxton.

Her current work examines which bee species are most vulnerable to human disturbance, and explores in more detail whether both rare native bees and efficient pollination services can be restored by increasing the diversity of flowering plants.

According to recent studies, declines in wild and managed bee populations threaten the pollination of flowers in more than 85 percent of flowering plants and 75 percent of agricultural crops worldwide.

Until recently, most biologists thought that long - distance pollination occurred only rarely, with fewer than one plant in a hundred having parents separated by more than 100 metres, says Norman Ellstrand, a plant population geneticist at the University of California at Riverside.

«They go in for this phenomenon of reproductive deceit,» Davis says, referring to the plants» method of attracting flies that can aid in pollination.

«A large portion of the flowering plants, or angiosperms, depended on the insects for pollination, and insects were a major factor in creating the soil conditions on which the plants grew,» Wilson says.

This means that pollination by insects could be even more important than in other plants.

But those same chemical defenses can reduce the number of visits to the plant by pollinators such as bees, resulting in less pollination of individual plants and decreased growth.

A graduate student in Isaacs's lab investigated pollination in five blueberry fields of up to 10 acres, with up to two acres planted with native Michigan wildflowers in a mix that blooms from spring until early fall.

Reports of slug pollination for A. elatior date from over 100 years ago, when slugs were observed visiting plants in Europe.

In a detailed accounting of the pollination life of cabbage thistles (Cirsium oleraceum), Knop and colleagues found that night - lit plants produced 13 percent fewer seeds overall than counterparts in naturally dark placeIn a detailed accounting of the pollination life of cabbage thistles (Cirsium oleraceum), Knop and colleagues found that night - lit plants produced 13 percent fewer seeds overall than counterparts in naturally dark placein naturally dark places.

Honey bees carry out fundamentally vital roles in nature by providing essential ecosystem functions, including global pollination of crops and native plants.

Such patches not only harbor more hummingbirds but also display greater rates of pollination than plants in areas that are isolated from each other.

Even with selective breeding, 10 to 15 percent of plants are the low - yielding dura form due to uncontrollable wind and insect pollination, particularly in plantations without stringent quality control measures.

In standard forms of pollination, bees collect pollen by simply brushing it off plants» anthers.

Seedlessness in table grapes results from the abortion of the embryonic plant that is produced by fertilization, a phenomenon known as stenospermocarpy which requires normal pollination and fertilization.

Though it's rare for plants to use sound as an attraction tactic, there are other species that employ this technique, like some bat - pollinated plants in the Neotropics; this, however, is the first example of a plant that doesn't use the strategy for pollination.

Declines in the pollination of wild plants may lead to increases in the population of plants that do not rely on pollinators, and pollinator declines would lead to decreases in crop yields, Fuentes noted.

«Self - pollination leads to reduction of genetic variability in the population, and this can be a problem for the plants, because they have a reduced ability to evolve resistance against diseases.»

Through her research, Dr. Gallagher addresses questions about the mechanisms governing how global climate change affects plant - pollinator interactions and the extent to which changes in the levels of pollination influence the ecology and evolution of plant populations.

The scientists said changes in insect numbers could have secondary effects on plant pollination and food supplies.

These findings help to understand under which conditions rare plant species relying on animal pollination can persist, and when they are in danger of extinction.

In the article, they show that foragers with realistically limited information about the distribution of floral resources forage in a way which favors pollination of the rarer plant species, while perfectly informed animals prefer the more abundant flowering planIn the article, they show that foragers with realistically limited information about the distribution of floral resources forage in a way which favors pollination of the rarer plant species, while perfectly informed animals prefer the more abundant flowering planin a way which favors pollination of the rarer plant species, while perfectly informed animals prefer the more abundant flowering plant.

Major current projects include 1) Evaluating pesticide exposure and risk to wild bees and managed honey bees in different landscapes, 2) Combining empirical data with network modeling to understand pathogen transmission in complex plant - pollinator networks, and 3) Understanding how pesticide and pathogen stress influence bee behavior and delivery of pollination services to agriculturally important crops.

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.

(Grades K - 4) Building and Using a Hydroponic / Aquaculture System in the Classroom (Grades 9 - 12) Plants and Animals: Partners in Pollination (Grades 4 - 9) Hands - On Plant Activities (K - 4)

Species of plants which depend upon pollination for their germination can cause allergies in dogs.

Observational data, evidence from field experiments, and quantitative modeling are the evidence base of the negative effects of extreme weather events on crop yield: early spring heat waves followed by normal frost events have been shown to decimate Midwest fruit crops; heat waves during flowering, pollination, and grain filling have been shown to significantly reduce corn and wheat yields; more variable and intense spring rainfall has delayed spring planting in some years and can be expected to increase erosion and runoff; and floods have led to crop losses.4, 5,6,7

Currently she is working on projects to increase pollinator friendly habitat in Maryland, to study urban pollution using honey bees as environmental samplers, and to investigate the biophysical properties of plants during the pollination event.