Jump to content




See all Safaritalk Special Offers

Message to Guests.

Welcome to Safaritalk where we have been talking Safaris and wildlife conservation since 2006. As a guest you're welcome to read through certain areas of the forum, but to access all the facilities and to contribute your experience, ask questions and get involved, you'll need to be a member - so register here: it's quick, free and easy and I look forward to having you as a Safaritalker soon. Matt.


Photo

invasive weed could increase malaria in east africa


  • Please log in to reply
1 reply to this topic

#1 COSMIC RHINO

COSMIC RHINO

    Order of the Pith

  • Members
  • 6,793 posts
  • Local time: 07:23 AM
  • Gender:Male
  • Location:sydney australia
  • Category 1:Tourist (regular visitor)
  • Category 2:Environmentalist

Posted 22 September 2015 - 06:18 AM

I was browsing the news and came across this, it is very concerning.

 

please go to http://www.icipe.org then go to news  their report has a link to an open access PLOS article

 

a highly invasive weed from nth and sth America  parthenium hyssterphorus also called famine weed  has the ability to support  malaria carrying anopheles mosquitos  without  having them had a blood meal

 

the weed is

 

massively invasive outside its home region  and is adapted to harsh environmental conditions

 

grows at a fast rtate and leaves a lot of small seeds in the ground

 

has spread extensively over cultivated  and pastoral  areas , including places where malaria is endemic

 

it has become a prfered plant food for malaria carrying mosquitos

 

produces a toxic  substance called parthenin  which causes dermatitis,hay fever and asthma in people

 

the plant is poisonous to livestock , and contaminates meat and milk

 

 

the plant produces sugars which feed the mosiquito and  give them the energy to fly

 

the researchers are calling for urgent efforts to control the plant

 

well the researchers just mention east Africa, I can't see why  it would not create the same problems if it spreads elsewhere


Wild Africa is in my blood. All life is sacred and interconnected. for the animals are fellow nations caught in the splendor and trevail of the earth.


#2 COSMIC RHINO

COSMIC RHINO

    Order of the Pith

  • Members
  • 6,793 posts
  • Local time: 07:23 AM
  • Gender:Male
  • Location:sydney australia
  • Category 1:Tourist (regular visitor)
  • Category 2:Environmentalist

Posted 23 September 2015 - 03:14 AM

My initial post came from just the news item

 

reading the PLOS article raises further concerns

 

the plant is native to the subtropics and tropics and  of nth and sth America , and has extensively  spread as invasive plant to cultivated and pastoral areas of  asia, Australia, south, east and central Africa

 

there are govt control programs in Australia, Uganda , ethopia amongst other countries

 

the plant grows in a very aggressive way and has much potential  to spread further , the study is just about east Africa  but it is in areas with malaria so this is not good news

 

some of the areas of origin are affected by malaria

 

it must be the absence of its local competing plants which makes it a  serious pest in other areas 

 

the plant can suppress or even replace less competitive  native species  with a risk of disease spread

 

So livestock can die if they eat it, I wonder what it does to wildlife?


Edited by COSMIC RHINO, 23 September 2015 - 04:58 AM.

Wild Africa is in my blood. All life is sacred and interconnected. for the animals are fellow nations caught in the splendor and trevail of the earth.






© 2006 - 2016 www.safaritalk.net - Talking Safaris and African Wildlife Conservation since 2006. Passionate about Africa.

Welcome guest to Safaritalk.
Please Register or Login to use the full facilities.