Featured Research

from universities, journals, and other organizations

Toward resolving Darwin's 'abominable mystery': Patterns of flower biodiversity point to the importance of having 'room to grow'

Date:
September 16, 2010
Source:
University of Calgary
Summary:
Biologists in Canada have found through extensive statistical analysis that the size of the geographical area is the most important factor when it comes to biodiversity of a particular flowering plant family.

Dr. Jana Vamosi is a member of University of Calgary's Department of Biological Sciences.
Credit: Riley Brandt, University of Calgary

What, in nature, drives the incredible diversity of flowers? This question has sparked debate since Darwin described flower diversification as an 'abominable mystery.' The answer has become a lot clearer, according to scientists at the University of Calgary whose research on the subject is published in the online edition of the journal Ecology Letters.

Related Articles


Drs. Jana Vamosi and Steven Vamosi of the Department of Biological Sciences have found through extensive statistical analysis that the size of the geographical area is the most important factor when it comes to biodiversity of a particular flowering plant family.

The researchers were looking at the underlying forces at work spurring diversity -- such as why there could be 22,000 varieties of some families of flowers, orchids for example, while there could be only forty species of others, like the buffaloberry family. In other words, what factors have produced today's biodiversity?

"Our research found that the most important factor is available area. The number of species in a lineage is most keenly determined by the size of the continent (or continents) that it occupies," says Jana Vamosi.

Steven Vamosi adds that while the findings of this research mostly shed light on what produces the world's diversity, it may comment on what produces extinction patterns as well.

"The next step is to determine if patterns of extinction risk mirror those observed for diversification, specifically to contrast the relative influence of available area and traits," he says.

Typically, when it comes to explaining the biodiversity of flowering plants, biologists' opinions fall into three different camps: family traits (for example a showy flower versus a plain flower), environment (tropic versus arid climate) or sheer luck in geography (a seed makes it way to a new continent and expands the geographical range of a family).

But the Vamosi research demonstrates that geography isn't the only answer, traits of the family came in a close second to geography. Traits that may encourage greater diversity are known as "key innovations" and scientists have hypothesized that some families possess more species because they are herbs, possess fleshy fruits (such as an apple or peach), or that their flowers have a more complex morphology. Zygomorphy (or when a flower can only be divided down the middle to make two equal mirror images) is thought to restrict the types of pollinators that can take nectar and pollen from the flower. Flies, for instance, won't often visit zygomorphic flowers. Bees, on the other hand, adore them.

"Although geography may play a primary role, a close second is the flower morphology of the plants in a particular family," says Jana Vamosi. "So essentially all camps may claim partial victory because morphological traits should be considered in the context of geographical area."


Story Source:

The above story is based on materials provided by University of Calgary. Note: Materials may be edited for content and length.


Journal Reference:

  1. Jana C. Vamosi, Steven M. Vamosi. Key innovations within a geographical context in flowering plants: towards resolving Darwin’s abominable mystery. Ecology Letters, 2010; DOI: 10.1111/j.1461-0248.2010.01521.x

Cite This Page:

University of Calgary. "Toward resolving Darwin's 'abominable mystery': Patterns of flower biodiversity point to the importance of having 'room to grow'." ScienceDaily. ScienceDaily, 16 September 2010. <www.sciencedaily.com/releases/2010/09/100916073248.htm>.
University of Calgary. (2010, September 16). Toward resolving Darwin's 'abominable mystery': Patterns of flower biodiversity point to the importance of having 'room to grow'. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2010/09/100916073248.htm
University of Calgary. "Toward resolving Darwin's 'abominable mystery': Patterns of flower biodiversity point to the importance of having 'room to grow'." ScienceDaily. www.sciencedaily.com/releases/2010/09/100916073248.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Reuters - Light News Video Online (Dec. 19, 2014) Millions of monarch butterflies begin to descend onto Mexico as part of their annual migration south. Rough Cut (no reporter narration) Video provided by Reuters
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com
Birds Might Be Better Meteorologists Than Us

Birds Might Be Better Meteorologists Than Us

Newsy (Dec. 19, 2014) A new study suggests a certain type of bird was able to sense a tornado outbreak that moved through the U.S. a day before it hit. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins