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Pollination in Biological News

Economic value of insect pollination worldwide estimated at 153 billion euros

... found that the worldwide economic value of the pollination service provided by insect pollinators, bees ... In particular, the economic value of the pollination service they provide had not been assessed on ... in the world. The total economic value of pollination worldwide amounted to 153 billion in 2005, which ...

Mate choice in plants

... it comes to choosing mates. Flowering plant pollination systems are clever devices for attracting ... as well as ensuring safeguards against unwanted pollination by genetically modified crops. Dr. Felipe Cruz ... built-in safeguards for preventing inadvertent pollination by and in pest or insecticide resistant crops or ...

Living fossils have hot sex

... get covered by it in the process. The push-pull pollination method used by some cycads makes the adult thrips ... the scales open slightly during the period when pollination occurs. The spaces provide a way for the insects ... female cones. It once was thought that pollination of cycads occurred randomly by wind blowing the ...

T-STAR grant funds genetic studies on shrimp and papaya and endangered cycad rescue

... as an expert on cycad plants. Marler, in collaboration with pollination biologist Irene Terry, was awarded $120,318 to study the pollination process of Cycas micronesica, a plant endemic to the Mariana Islands. This ...

Pollinator decline not reducing crop yields just yet

... "While this is a positive finding, the interaction between yields and pollination is a hugely complex issue which needs to be teased-out further," Dr ... shortages might be beginning to affect crops that rely heavily on pollination because their yield growth was lower than for crops that were less ...

Bitter-tasting nectar and floral odors optimize outcrossing for plants

... the amount of nicotine in the floral nectar of wild tobacco influenced pollination by the tobacco hornworm Manduca sexta and two hummingbird species [1]. To ... rate of seeds in the ovary), the other on male fitness (successful pollination of neighboring plants). To determine female fitness, the flowers of ...

A special issue of the International Journal of Plant Sciences

... Flowering plants owe their spectacular diversity to the evolution of their pollination systems, and the first section of the issue, Flowers and Pollination, ... and genetic mechanisms that might account for the destabilization of pollination syndromes. Risa Sargent and Jana Vamosi further explore this topic in ...

Simulating kernel production influences maize model accuracy

... fertilization of a female flower leads to the production of a kernel. pollination success depends on the amount of viable pollen produced, the presence of ... of agronomy. CERES-Maize does not consider these critical aspects of the pollination process. To overcome the limitations of CERES-Maize, Westgate and his ...

First orchid fossil puts showy blooms at some 80 million years old

... orchid pollen on its back, represents some of the only direct evidence of pollination in the fossil record. "Since the time of Darwin, evolutionary ... on the bee's back not only confirms the grains were placed through active pollination -- as opposed to a random encounter with an orchid -- but also sheds light ...

Warming climate threatens California fruit and nut production

... which is particularly critical for trees such as walnuts and pistachios that depend on male and female flowering occurring at the same time to ensure pollination and a normal yield. Planning for a warmer future Fruit and nut growers commonly use established mathematical models to select tree varieties ...

Sex involved in plant defense

... generalist herbivores. Though there are short-term benefits to asexual reproduction populations can grow more rapidly and propagate even when pollination is not possible losing sex puts plants at a long-term disadvantage. "In the end, asexual reproduction appears to be an evolutionary dead-end." ...

Protecting the food crops of the future

... in the climate. Professor of Plant Development at the University, Brendan Davies, says: "Flowers are vital to the plant reproduction process as pollination leads to the development of the fruit, where the seeds are found. Everything that we eat comes from flowering plants - even the food that is fed to ...

Scientists tackle the mystery of white-nose syndrome in bats

... keep insects under control, ultimately reducing the quantities of insecticides used on crops. Bats also play an important ecological role in plant pollination and seed dissemination. In April, the U.S. Forest Service issued an emergency order to close caves and mines in 33 states for up to one year, ...

Scientists unravel the mystery of white-nose syndrome

... keep insects under control, ultimately reducing the quantities of insecticides used on crops. Bats also play an important ecological role in plant pollination and seed dissemination. In April, the U.S. Forest Service issued an emergency order to close caves and mines in 33 states for up to one year, ...

ChloroFilms announces video contest winners

... http://www.youtube.com/watch?v=6pHGN04CPEM , a collaboration with Anna Edlund, combines music, dance, sensual imagery and puns to tell the story of pollination and fertilization in plants in an unforgetable way. More from this creative team is available at http://www.lelavision.com/ . First prizes ...

Male flower parts responsible for potent grapevine perfume: UBC research

... more prevalent than we think." The team also found that emission of perfume is light-dependent and is strongest at dawn, possibly to coincide with pollination and predation activities. ...

Male flower parts responsible for potent grapevine perfume: UBC research

... more prevalent than we think." The team also found that emission of perfume is light-dependent and is strongest at dawn, possibly to coincide with pollination and predation activities. ...

Wild bees can be effective pollinators

... A new study published in the Annals of the Entomological Society of America shows that wild bees, which are not affected by CCD, may serve as a pollination alternative. In the article "Wild Bees ( Hymenoptera: Apoidea: Anthophila ) of the Michigan Highbush Blueberry Agroecosystem," authors Julianna ....

Ecologists report quantifiable measures of nature's services to humans

... and people that goes beyond emotional arguments and points us toward practical solutions." Some of the best-described ecosystem services include pollination of crops, flood and storm protection, water filtration and recreation. The challenging part is translating these services into something with a ...

Shade coffee benefits more than birds

... species such as Africanized honeybees don't perform buzz pollination, but native bees do, said Jha, "so I thought Miconia , which requires buzz pollination and is common both in forests and on coffee farms, could be a bio-indicator of how well native bees are pollinating native plants." As she spent ...

Ecologists tease out private lives of plants and their pollinators

... in the second part of the study, recorded bumblebee foraging behaviour. They found that without exception, plants that rely solely on insects for pollination produce the highest quality pollen, packing 65% more protein into their pollen than plant species that do not have to rely on insect pollinators. ...

Crop scientists discover gene that controls fruit shape

... the process by which it came to reside in the tomato genome. Another unique characteristic of the SUN gene is that it affects fruit shape after pollination and fertilization, with the most significant morphological differences found in developing fruit five days after plant flowering. The only other ...

Haagen-Dazs gift to support Penn State honeybee research

... As the pollination season approaches in Pennsylvania and the Northeast, scientists at Penn State and elsewhere continue to seek answers to the decline of the nation's ...

4 GBIF-endorsed campaigns underway

... by animals. Without this vital ecosystem service, 3/4 of the worlds leading fruit, vegetable, and seed crops would be in peril. The global value of pollination to agriculture has been estimated at around 150 billion per year. While bees are by far the dominant pollinator group (about 20,000 described ...

Indonesia's 'Lost World' reveals more surprises

... minimizes the impact of climate change while providing direct benefits to local populations, such as fresh water, clean air, food, seed dispersal, pollination and sources of medicines. The Indonesian Government has declared the region a National Wildlife Sanctuary, and CI continues to work with the ...

Great Ape Trust awards $127,000 for international conservation efforts

... such as maintenance of air quality, security of fresh water sources, control of erosion and siltation, temperature and climate stability, and pollination of domestic crops. The ensuing poverty and desperation undermine world peace and the quality of life of people everywhere, including Iowa. This is ...

Colony collapse disorder symposium added to ESA Annual Meeting

... role that pollinators play in our lives, said Dr. Pettis. While this session on CCD will focus on honey bee health and the implications for pollination of agricultural crops, the need to preserve all pollinatorsbirds, bats, bees and butterfliesis finally getting some long overdue attention. ...

Wild bees and the flowers they pollinate are disappearing together

... have been raised for years about the loss of pollination services, but until recently most of the evidence ... of Reading) said: "The economic value of pollination worldwide is thought to be between £20 and 50 ... the plant world, with the plants that depend on pollination by bees disappearing too. Dr Bill Kunin, ...

Study: Competition for sex is a 'jungle out there'

... an exhaustive global analysis of more than 1,000 pollination studies which included 166 different plant ... deal of plant diversity, plants suffer lower pollination and reproductive success. For some plant ... colleagues created a database of more than 1,000 pollination experiments conducted worldwide. "If ...

Warning from Asian bees

... crops, including melons, pumpkins, and even cotton are more productive with their help. “And almond crops rely entirely on honeybees for pollination and Australia’s young almond industry is booming right now in the tri-State region.” Since varroa mite and other bee diseases hit America and ...

Detecting poisons in nectar is an odour-ous task for honeybees

... toxic nectars. Why plants would try to poison the honeybees they wish to attract is a scientific mystery. The honeybee, which accounts for the pollination of at least 1/3 of the world’s crop plants, may encounter such poisoned nectar in common crop and garden plants such as Rhododendrons and almond ...

Tamed 11,400 years ago, figs were likely first domesticated crop

... that they were a mutant selectively propagated by humans. In this variety of fig, known as parthenocarpic, the fruit develops without insect pollination and is prevented from falling off the tree, allowing it to become soft, sweet, and edible. However, because such figs do not produce seeds, they are ...

Value of services performed by insects tops $57 billion in US

... insects, Vaughan said. Losey and Vaughan's study focused on the economic value of four particular services -wildlife nutrition, pest control, pollination and dung burial - selected because robust data were available for an analysis. "A lot of value is added to the economy by insects, but most people ...

Diverse tropical forests defy metabolic ecology models

... enormous buttress-rooted rainforest giants festooned with vines and peppered with orchids, ferns and bromeliads. Tropical trees depend on animals for pollination and seed dispersal and are constantly assaulted by insects, fungi, maelstrom and machete. Furthermore, soils, rainfall, the frequencies of hurricanes ...
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