HOME >> BIOLOGY >> NEWS
When is a pollinator not a pollinator? Tales from an insect crime scene...

Danger looms for the lovely, red, trumpet-shaped blossoms of the scarlet gilia, a Rocky Mountain plant. Their nectar is in jeopardy. There are thieves among the bumblebees, and their larceny will prevent the sprightly hummingbirds from pollinating the gilia.

Rebecca E. Irwin and Alison K. Brody of the University of Vermont have been studying these bandits, known as nectar-robbing bumble bees (Bombus occidentalis) at the Rocky Mountain Biological Laboratory in Colorado. A study published in the July issue of Ecology highlights their research.

Past studies have shown that nectar robbing may in fact have a positive effect on the reproductive success of a plant. Some robbers can unknowingly aid in a plant's pollination when they brush up against floral reproductive structures. In this study, the researchers wanted to know if nectar robbing was detrimental to the scarlet gilia (Ipomopsis aggregata).

To study the bee's effects on the gilia, the researchers first studied the method by which the robber steals nectar from the plant's blossoms. The bee uses its spiky, toothed mouthparts to chew a hole through the side of the corolla, the petals that surround the inner parts of the flower. It then sucks the nectar out of this hole through a long, snout-like proboscis.

While this method provides ample nectar for the bee, there is none left for other winged creatures, such as the hummingbirds which migrate through the region.

This larceny also fails to pollinate the plant, a process that would likely occur after a visit from a hummingbird. Pollination in the gilia occurs only through interplant pollen transfer. For a plant to be successfully pollinated, the pollen of one plant must be transferred to the stigma of another, where it can fertilize the ovule and form seeds.

Nectar robbing, therefore, has the potential to be highly damaging to the plant's reproductive success. Since individual gilia plants bloom only once, estimates of lifetim
'"/>

Contact: Alison Gillespie
alison@esa.org
202-416-6181
Ecological Society of America
12-Jul-1999


Page: 1 2

Related biology news :

1. Mass flowering crops enhance pollinator densities at a landscape scale
2. Predators: an overlooked player in plant-pollinator relationships
3. Essential smell gene may provide key to new insect repellents
4. The insect police: Why social insects punish cheating comrades
5. Increasing international insect threat to stored food
6. New model explains why costly insect outbreaks hard to predict
7. New study in moths shows insects not entirely ruled by instinct
8. Origin of West Indian insect eater much older than previously thought
9. Flies may taste bitter better, first map of insect tongue reveals
10. Changes to insect-seeking calls of horseshoe bats may drive new species formation
11. Yale researchers discover new potential asthma therapeutic targets related to parasites and insects

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/5/2017)... LONDON , April 4, 2017 KEY ... is anticipated to expand at a CAGR of 25.76% ... neurodegenerative diseases is the primary factor for the growth ... full report: https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The ... of product, technology, application, and geography. The stem cell ...
(Date:3/30/2017)... Trends, opportunities and forecast in this market ... (fingerprint, AFIS, iris recognition, facial recognition, hand geometry, vein ... use industry (government and law enforcement, commercial and retail, ... others), and by region ( North America ... Pacific , and the Rest of the World) ...
(Date:3/24/2017)... Research and Markets has announced the addition of the "Global ... to 2025" report to their offering. ... The Global Biometric Vehicle Access System Market ... the next decade to reach approximately $1,580 million by 2025. ... for all the given segments on global as well as regional ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... October 10, 2017 , ... ... antibody-drug conjugate (ADC) therapeutics, today confirmed licensing rights that give it exclusive ... a technology developed in collaboration with Children’s Hospital Los Angeles (CHLA). ...
(Date:10/10/2017)... 10, 2017 SomaGenics announced the receipt of ... develop RealSeq®-SC (Single Cell), expected to be the first ... (including microRNAs) from single cells using NGS methods. The ... to accelerate development of approaches to analyze the heterogeneity ... "New techniques for measuring levels of mRNAs in individual ...
(Date:10/9/2017)... ... October 09, 2017 , ... The award-winning American Farmer television series ... 2018. American Farmer airs Tuesdays at 8:30aET on RFD-TV. , With global population ... challenge of how to continue to feed a growing nation. At the same time, ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... instruments and applications consulting for microscopy and surface analysis, Nanoscience Instruments is ... Nanoscience Analytical offers a broad range of contract analysis services for advanced ...
Breaking Biology Technology:
Cached News: