Weeds survive the wild better than natives

Weeds are winning the battle when it comes to surviving in the wild with foliage eating insects preferring the taste of native plants, according to a study by Queensland University of Technology.

Eve White, from QUT's School of Natural Resource Sciences, has been investigating the effect weeds can have on native plants especially when foliage eating insects, also known as herbivores, are involved.

"While many plants need insects to reproduce there are many insects that simply feed off plants and this is having an effect on natives," she said,

"Some weed species receive all of the benefits of visiting pollinators but none of the negative consequences of herbivores."

Ms White said while pollinators - insects that carry pollen from one flower to another facilitating fertilisation - visited weeds and natives, the attack by herbivores may have an unfair advantage for the weed.

"Essentially it may give weeds the upper hand over native plants," she said.

"What I wanted to see was the herbivores eating the weeds, but this was not the case.

"Herbivores demonstrated a preference for the native plant, causing higher levels of damage to the foliage of the native both in the field and in laboratory trials."

Ms White said her study also found that while pollinators were not ignoring natives, their interest in weeds was producing a hybrid native/weed species of seed.

"In many cases when hybrids are created they are not as healthy as the original plant and this is what I have seen," she said.

"What I have found is the hybrid's seeds are not able to survive into maturity. The reproductive effort is therefore being wasted."

Ms White said the survival of many of Australia's native plants was at risk because of weed infestation.

"It is essential to understand what is occurring to our native plants so that strategies can be developed to protect them."


Contact: Sandra Hutchinson
Queensland University of Technology

Page: 1 2

Related biology news :

1. Moths mimic sounds to survive
2. Some forest birds can survive in agricultural countryside with limited habitat conservation
3. Natural anti-freeze -- how arthropods survive the cold
4. Huddling and a drop in metabolism allow penguins to survive the South Pole cold
5. Salmonella survives better in stomach due to altered DNA
6. Human preference for other species could determine whether they survive
7. Beavers helping frogs, toads survive
8. Big-brained birds survive better in nature
9. Remarkable physiology allows crucian carp to survive months without oxygen
10. Life and death in the hippocampus: what young neurons need to survive
11. Heart has enough oxygen to survive hypothermia, CPR crucial

Post Your Comments:

(Date:11/9/2015)... , Nov. 09, 2015 ... the addition of the "Global Law ... their offering. --> http://www.researchandmarkets.com/research/52ggmn/global_law ) ... "Global Law Enforcement Biometrics Market 2015-2019" ... Research and Markets ( http://www.researchandmarkets.com/research/52ggmn/global_law ) has ...
(Date:11/4/2015)... 2015 --> ... by Transparency Market Research "Home Security Solutions Market - Global ... - 2022", the global home security solutions market is expected to ... The market is estimated to expand at a CAGR ... 2022. Rising security needs among customers at homes, the ...
(Date:10/29/2015)... , Oct. 29, 2015   MedNet Solutions ... the entire spectrum of clinical research, is pleased to ... High Tech Association (MHTA) as one of only three ... the "Software – Small and Growing" category. The Tekne Awards ... who have shown superior technology innovation and leadership. ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... Calif. , Nov. 24, 2015 Cepheid ... will be speaking at the following conference, and invited ... New York, NY      Tuesday, December 1, 2015 ... New York, NY      Tuesday, December 1, 2015 ... Jaffray Healthcare Conference, New York, NY ...
(Date:11/24/2015)... , Nov. 24, 2015 /PRNewswire/ - Aeterna Zentaris Inc. ... IIROC on behalf of the Toronto Stock Exchange, confirms ... there are no corporate developments that would cause the ... --> --> About Aeterna Zentaris ... . --> Aeterna Zentaris is a specialty ...
(Date:11/24/2015)... November 24, 2015 SHPG ) announced today ... the Piper Jaffray 27 th Annual Healthcare Conference in ... 2015, at 8:30 a.m. EST (1:30 p.m. GMT). --> ... Officer, will participate in the Piper Jaffray 27 th Annual ... on Tuesday, December 1, 2015, at 8:30 a.m. EST (1:30 p.m. ...
(Date:11/24/2015)... ... November 24, 2015 , ... ... are paramount. Insertion points for in-line sensors can represent a weak spot where ... InTrac 781/784 series of retractable sensor housings , which are designed to tolerate ...
Breaking Biology Technology:
Cached News: