Navigation Links
New discovery suggests trees evolved camouflage defense against long extinct predator
Date:7/22/2009

Many animal species such as snakes, insects and fish have evolved camouflage defences to deter attack from their predators. However research published in New Phytologist has discovered that trees in New Zealand have evolved a similar defence to protect themselves from extinct giant birds, providing the first evidence of this strategy in plant life.

"Plants are attacked by a bewildering array of herbivores and in response they have evolved a variety of defences to deter predators such as thorns and noxious chemicals," said lead researcher Dr Kevin Burns from Victoria University of Wellington, New Zealand. "In contrast animals often use colours to hide from predators or advertise defences, but until now there has been little evidence of colour based defences in plants."

Dr Burns' team studied the leaves of the Araliaceae tree (P. crassifolius) a heteroblastic species which is native to New Zealand. This species goes through several strange colour transitions during the process from germination to maturity and the reason for these changes is now thought to be a defence strategy from an extinct predator, the moa.

Before the arrival of humans New Zealand had no native land mammals, but was home to moa, giant flightless birds, closely related to the modern ostrich and the top herbivore predator in the food chain. However moa were hunted to extinction 750 years ago.

The Araliaceae tree has several defences which the team suggest are linked to the historic presence of moa. Seedlings produce small narrow leaves, which appear mottled to the human eye. Saplings meanwhile produce larger, more elongated leaves with thorn-like dentitions.

The mottled colours of seedling leaves are similar to the appearance of leaf litter, which would have made them difficult for a moa to distinguish. The unusual colouring may also reduce the probability of leaf outlines and help camouflage leaves against the sunlight-draped for
'/>"/>

Contact: Ben Norman
Lifesciencenews@wiley.com
44-124-377-0375
Wiley-Blackwell
Source:Eurekalert

Page: 1 2

Related biology news :

1. Down Under dinosaur burrow discovery provides climate change clues
2. GUMC discovery highlights new direction for drug discovery
3. Discovery may provide new treatments for alcohol dependence
4. New nanoparticles could revolutionize therapeutic drug discovery
5. Discovery of a water snake that startles fish in a way that makes them flee into its jaws
6. New discovery suggests mammoths survived in Britain until 14,000 years ago
7. Discovery of the cells water gate may lead to new cancer drugs
8. Aussie and Kiwi researchers make double MS genetic discovery
9. Discovery raises new doubts about dinosaur-bird links
10. NAU discovery could help feed millions
11. Voyages of discovery or necessity?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/19/2014)... will study multifunctional and specialized spinal cord nerve ... Science Foundation grant in the amount of $680,000 ... in the Department of Biology, OU College of ... between the multifunctional and specialized spinal cord nerve ... what connections they make. Berkowitz will collaborate ...
(Date:9/19/2014)... Inc. (Nasdaq: NXTD and NXTDW) ("Nxt-ID" or the ... updates the "Wocket in Your Pocket" celebrity ad campaign, featuring former ... classes, Vinny Pazienza (PAZ). , ... actor Ciaran Hinds and Sons of Anarchy ... have been cast in Bleed for This . ...
(Date:9/18/2014)... A new GSA Bulletin study uses ... Rio Puerco and Chaco Wash in northern New Mexico, ... salt cedar and willow, investigators were able to precisely ... They then combined this data with aerial imagery, LiDAR, ... of these arroyos. , Arroyos are deep, oversized channels ...
Breaking Biology News(10 mins):NXT-ID's Vinny Paz Celebrity Ad Wocket Update: Katey Sagal and Ciaran Hinds Attached to His Upcoming Movie 2NXT-ID's Vinny Paz Celebrity Ad Wocket Update: Katey Sagal and Ciaran Hinds Attached to His Upcoming Movie 3Tree rings and arroyos 2Tree rings and arroyos 3Tree rings and arroyos 4Tree rings and arroyos 5Tree rings and arroyos 6Tree rings and arroyos 7
... and biological aspects of cellular self-organization are well-studied; less ... how their behavior and communication are affected by ... the University of California San Diego, in a paper ... of the National Academy of Sciences, have begun ...
... Japanese researchers were awarded the 2008 SNM Wagner-Torizuka ... States through 2010 as part of the two-year ... Medical College, undertaking a fellowship at Johns Hopkins ... the University of Washington, Seattle; Ryo Nakazato, Toho ...
... has clearly illustrated, the top priority for the next ... Believing that expanding the nation,s commitment to basic ... the next President can take to ensure our long-term ... questions (attached) to the moderator of tomorrow,s presidential debate. ...
Cached Biology News:UC San Diego bioengineers fill holes in science of cellular self-organization 22008 SNM Wagner-Torizuka Fellowships announced 22008 SNM Wagner-Torizuka Fellowships announced 3The Science Coalition's '10 questions' for the presidential debate 2
(Date:9/21/2014)... the University of Basel in Switzerland have succeeded ... charged molecule for the first time. These extremely ... of molecular properties and may also contribute to ... The results were published in the scientific journal ... of the interaction between matter and light, is ...
(Date:9/20/2014)... USA (PRWEB) September 20, 2014 Entries ... 2015 Prism Awards for Photonics Innovation . The ... the multi-billion dollar optics and photonics industry, and is ... and photonics , and Photonics Media . , ... the versatility of photonics, said SPIE CEO Eugene Arthurs. ...
(Date:9/19/2014)...  InterMune, Inc. (Nasdaq: ITMN ) today ... to settle the litigation in the Delaware Court of ... dated as of August 22, 2014, among Roche Holdings, ... term of the Memorandum of Understanding, the Company agreed ... attached exhibit reflecting the amendment to the Company,s Schedule ...
(Date:9/19/2014)... rather than electricity, to move data would consume ... a growing concern as chips, transistor counts rise. ... circuits light emitters, modulators, and detectors ... light source for optical chips is molybdenum disulfide ... as a single, atom-thick layer. Other experimental on-chip ...
Breaking Biology Technology:Uncovering the forbidden side of molecules 2Entry deadline is 10 October for international photonics Prism Awards 2Entry deadline is 10 October for international photonics Prism Awards 3Entry deadline is 10 October for international photonics Prism Awards 4InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 2InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 3InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 4InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 5InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 6InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 7InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 8InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 9InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 10InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 11InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 12InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 13InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 14InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 15InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 16InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 17InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 18InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 19Toward optical chips 2Toward optical chips 3
... PRINCETON, N.J., May 1 Ranbaxy Pharmaceuticals ... voluntary recall of all lots of Nitrofurantoin (Monohydrate/Macrocrystals) Capsules, ... U.S. Although certain lots of the product were ... laboratory specifications, Ranbaxy decided to recall all the lots, ...
... May 1 /PRNewswire-Asia/ -- Yongye Biotechnology International, Inc. (OTC ... distributor of plant and animal nutrient products located in ... of the independently owned Yongye branded retail stores in ... day sales.A Yongye branded retail store in Qianjiang City ...
... 1 Tigris Pharmaceuticals, Inc., a privately held drug ... a Phase I clinical trial of GGTI-2418. GGTI-2418 ... I) that induces apoptosis by downregulating several pivotal oncogenic ... by Dr. Peter O,Dwyer, Professor of Medicine at the ...
Cached Biology Technology:Yongye Biotechnology Distributor has Record Breaking Single Store Sales Day 2Yongye Biotechnology Distributor has Record Breaking Single Store Sales Day 3First Patient Dosed in Phase I Clinical Trial of Tigris Pharmaceuticals' GGTI-2418 2First Patient Dosed in Phase I Clinical Trial of Tigris Pharmaceuticals' GGTI-2418 3
... of 3 siRNAs specifically targeted to your ... product. The siTrio reagent guarantees you get ... gene when used under standard conditions (100 ... optimal transfection with one of B-Bridges controls). ...
... a cocktail of 3 siRNAs specifically targeted ... most popular product. The siTrio reagent guarantees ... your target gene when used under standard ... confirmation of optimal transfection with one of ...
... has improved stability and convenience from the former ... has overcome this problem but also produced some ... the formulation of HRP conjugated antibody from lyophilized ... change, the stability of the conjugate has improved ...
... suitable for a wide range of molecular ... Pulsed Field Gel Electrophoresis (PFGE). Due to ... Multi ABgarose can effectively separate large DNA ... turn means reduced band diffusion, a problem ...
Biology Products: