Navigation Links
Got nectar? To hawkmoths, humidity is a cue
Date:5/30/2012

Southwestern U.S.

Even though most plant-pollinator relationships are mutually beneficial the plant rewarding the pollinator's help with food their interests are conflicting.

"Speaking in evolutionary terms, the flower wants to be visited by a pollinator, but it doesn't want to invest too much because sacrificing resources and energy to make nectar is expensive," von Arx explained. "Often, plants are dishonest in their advertising, by presenting attractive flowers with no nectar."

But under certain circumstances, especially in desert environments, where water is scarce, it is beneficial for a flower to be honest, the researchers believe.

"If you're one of only a few flowers and there are lots of pollinators out there, you don't have to be honest about how much nectar you have because they'll visit anyway," von Arx said. "But if you want the attention of just a few, you really have to go all out. So by saying, 'Hey, come here, I have lots of nectar,' you're giving a faithful signal about an actual benefit that the pollinators can perceive and evaluate."

"I think in this case we showed that honesty makes sense in this system, because plants pollinated by hawkmoths are often pollinator-limited, and this signal, especially in the desert environment, is very potent."

According to von Arx, relative humidity plays an important role in the insect world and has been associated with choosing a suitable habitat but never was studied in the context of foraging for nectar. For example, neurobiological experiments revealed that cockroaches are able to detect humidity changes of a fraction of a percent.

"As creatures who use vision and olfaction, humans think in odors and shape, and color," von Arx said. "We are biased by what we can perceive. We know that moths have hygroreceptors on the tips of their antennae, but they remain a mystery for the most part. We know a lot about olfactory receptors, mechanoreceptors an
'/>"/>

Contact: Daniel Stolte
stolte@email.arizona.edu
520-626-4402
University of Arizona
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Humidity makes gecko feet stickier
2. Temperature, humidity affect health benefits of green tea powders
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Got nectar? To hawkmoths, humidity is a cue
(Date:8/3/2015)... , Aug. 3, 2015 Synaptics, Inc. (Nasdaq: ... solutions, today announced that members of the executive management ... Pacific Crest Global Technology Leadership Forum on Tuesday, August ... will be held at the Sonnenalp Resort in ... presentation may include forward-looking information. An audio webcast of ...
(Date:7/31/2015)... , 31 de julio de 2015 ... (ICG-10,  www.icg-10.org ) del 22 al 25 de octubre ... La conferencia celebra su décimo aniversario este ... convertido en una de las reuniones anuales más influyentes ... es una de las conferencias científicas más dinámicas, entusiastas ...
(Date:7/31/2015)... SHENZHEN , Chine, 31 juillet 2015 /PRNewswire/ ... (ICG-10, www.icg-10.org ) sera organisée par le ... Shenzhen en Chine. ... année. Depuis son inauguration en 2006, l,ICG est ... influentes dans le domaine des « omiques » et c,est ...
Breaking Biology News(10 mins):La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 2La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 3
... Ltd, a private company focused on the development of ... it has entered into a license agreement with the ... worldwide rights to develop and commercialise several novel kinase ... the CNIO,s considerable expertise in drug discovery and comprise ...
... have been officially declared extinct by the International Union for ... of Israel after some 60 years and turns out to ... living frogs. The Hula painted frog was catalogued ... discovered in the Hula Valley of Israel in the early ...
... the clear arguments for controlling parasitic infections, we know ... A good model system for research is provided by ... large intestines of pigs, slowing the animals, growth and ... are available to help keep the parasite in check ...
Cached Biology News:Stopping the worm from turning 2
(Date:9/2/2015)... ... September 02, 2015 , ... The wet form ... of special anti-vascular endothelial growth factor agents given by injection into the eye. ... have a scientific protocol for the many millions diagnosed with it. AMD usually ...
(Date:9/2/2015)... ... September 02, 2015 , ... Drug ... plant-derived compounds. BCC Research reveals in its new report that the U.S. ... defines the category and generates the most market demand. , BCC Research ...
(Date:9/2/2015)... , September 2, 2015 ... BOLT) ("BioLight" or the "Company"), a firm that ... ophthalmology and cancer diagnostics, announced today that presentations ... glaucoma will be delivered at the Ophthalmology Futures ... European Society of Cataract & Refractive Surgeons ("ESCRS"), ...
(Date:9/2/2015)... ... September 02, 2015 , ... Temarry ... their entire waste to energy process and continue to contribute to the sustainability ... , Temarry’s Waste to Energy process has been operating at their Mexico facility, ...
Breaking Biology Technology:StemCell GeneticMed Announces That It Has Started Stem Cell Treatments for Age Related Dry Macular Degeneration (AMG) 2Plant-derived Compounds Poised to Assume Greater Role in Global Drug Markets, According to BCC Research 2Plant-derived Compounds Poised to Assume Greater Role in Global Drug Markets, According to BCC Research 3Presentations to Highlight BioLight's IOPtiMate[TM] System at Upcoming European Ophthalmology Conferences 2Presentations to Highlight BioLight's IOPtiMate[TM] System at Upcoming European Ophthalmology Conferences 3Temarry Recycling’s New $100,000 Waste to Energy Renovation 2
... 13 Savient,Pharmaceuticals, Inc. (Nasdaq: SVNT ) today ... Savient Pharmaceuticals,will present a corporate update at the upcoming ... is scheduled to begin on Tuesday, November 18, 2008 ... the St. Regis Hotel in New,York City November 18-19, ...
... Held Friday, November 14, 2008 at 9:00 a.m. Eastern ... ... Alseres,Pharmaceuticals, Inc. (Nasdaq: ALSE ) today reports operational and,financial results ... year 2008., (Logo: http://www.newscom.com/cgi-bin/prnh/20080813/NEW056LOGO ), "We are encouraged ...
... ILI ) today announced financial and business results ... Company reported a net loss of $1.6 million, or ... quarter of 2008 compared to a net,loss of $1.1 ... for the,same period last year., "Collaborations are an ...
Cached Biology Technology:Savient Pharmaceuticals to Present at the Lazard Capital Markets 5th Annual Healthcare Conference on November 18th 2Alseres Pharmaceuticals, Inc. Reports Third Quarter 2008 Operational and Financial Results 2Alseres Pharmaceuticals, Inc. Reports Third Quarter 2008 Operational and Financial Results 3Alseres Pharmaceuticals, Inc. Reports Third Quarter 2008 Operational and Financial Results 4Alseres Pharmaceuticals, Inc. Reports Third Quarter 2008 Operational and Financial Results 5Interleukin Genetics Reports Third Quarter 2008 Financial Results 2Interleukin Genetics Reports Third Quarter 2008 Financial Results 3Interleukin Genetics Reports Third Quarter 2008 Financial Results 4Interleukin Genetics Reports Third Quarter 2008 Financial Results 5Interleukin Genetics Reports Third Quarter 2008 Financial Results 6Interleukin Genetics Reports Third Quarter 2008 Financial Results 7
... DNA Methylation Kit uses a simplified procedure ... methylation analysis. The kit is based on ... between cytosine and sodium bisulfite where cytosine ... Methylation Kits innovative in-column desulphonation reaction eliminates ...
... carbohydrate analysis standard is a lyophilized ... sugar alcohol; molecular weights range from ... provided for use with the Aminex ... kit for column testing or semiquantitative ...
... from KUBTEC is a dual capability system with ... representation of the specimen under test. While the ... images, the micro focus source also allows the ... standard 2D images. The 50 mm x 50 ...
... tested through 63 ligand ... spanning a broad therapeutic ... includes many non human ... non-selective assays. Used ...
Biology Products: