Navigation Links
Managing waters shared across national boundaries: Treasury of papers helps capture 20 years of lessons
Date:7/25/2013

riginally popular as a pond ornament due to its large purple flowers, water hyacinth now plagues 50 countries in Africa, Asia, North America and Europe -- ranked by the International Union for Conservation of Nature among the planet's 100 most aggressive invasive species, a weed known to as much as double in population in just two weeks.

The large floating mats choke off sub-surface species such as fish and turtles from light and oxygen and support organisms harmful to human health.

Annual economic impacts in seven African countries alone have been estimated at between US $20 million and $50 million; Africa-wide, costs are thought to reach US $100 million. In Mexico, more than 40,000 hectares of reservoirs, lakes, canals and drains are infested. In China, the annual costs of water hyacinth management are estimated at around $1.3 billion, and in the US its economic harm is estimated at $120 billion. In California, the weed has severely impacted the Sacramento-San Joaquin River Delta.

Taking off: the use of flying robot drones on environmental missions

Tracking the spread of floods and other natural disasters, chasing wildlife poachers, mapping deforestation, detecting illegal mining or logging, and sniffing out volcanic threats are among the growing uses environmental scientists are making of unmanned flying robot drones.

According to UNEP, "eco-drones" offer a relatively low-cost way to collect atmospheric data, for example, or real time, high resolution images offering information unobtainable from satellites and ground surveys.

Notable early applications:

Authorities in Sao Paulo, Brazil, have deployed 14 drones (cost: US $350 million) to monitor deforestation in the Amazon, track poachers and detect illegal mining. And in 2012 the World Wildlife Fund received US $5 million from Google to deploy drones and other technologies to track animal poachers in Africa.

The US Nat
'/>"/>

Contact: Terry Collins
tc@tca.tc
416-538-8712
United Nations University
Source:Eurekalert

Page: 1 2 3 4 5

Related biology news :

1. Research examines new methods for managing digestive health
2. Managing biodiversity data from local government
3. Pittsburghs leaky faucet: How aging sewers are impacting urban watersheds
4. Shimmering water reveals cold volcanic vent in Antarctic waters
5. CU-led study shows pine beetle outbreak buffers watersheds from nitrate pollution
6. Illuminating the no-mans land of waters surface
7. Robotic fish research swims into new ethorobotics waters
8. Increase in metal concentrations in Rocky Mountain watershed tied to warming temperatures
9. WaterSMART funds $1.7 million for science projects in desert and southern Rockies LCCs
10. Potent human toxins prevalent in Canadas freshwaters
11. Coral reef thriving in sediment-laden waters
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/21/2015)...  NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... on the growing mobile commerce market and creator ... has filed provisional patent 62/192218 for ... This invention highlights next generation payment technology from ... also the user using unique personal identifiers including ...
(Date:7/20/2015)... 20, 2015  Acuity Market Intelligence,s latest research ... of Commerce and Privacy" forecasts that between 2014 ... will be downloaded to smart mobile devices by ... market is projected to generate more than $67.9 ... seven-year forecast period.    "Biometrics is ...
(Date:7/13/2015)... 2015 NXT-ID, Inc. (NASDAQ: NXTD ) ... focused on the growing mobile commerce market, announced ... for BEHAVIORAL-DIRECTED AUTHENTIATION METHOD AND SYSTEM. ... secure method to make payments.  With this patent, ... with its groundbreaking voice-direct payment patent application, with ...
Breaking Biology News(10 mins):NXT-ID Patents Personalized Tokenized Payments for Next Generation Secure Payment Technology 2NXT-ID Patents Personalized Tokenized Payments for Next Generation Secure Payment Technology 3NXT-ID Patents Personalized Tokenized Payments for Next Generation Secure Payment Technology 4Biometrics on Smart Mobile Devices to Redefine Digital Identity with 12.9 Billion Biometric App Downloads between 2014 and 2020 2NXT-ID Patents Behavior-Directed Payments 2NXT-ID Patents Behavior-Directed Payments 3NXT-ID Patents Behavior-Directed Payments 4
... researchers has identified 11 new genes that offer ... in Alzheimer,s disease. The highly collaborative effort involved ... genetic analysis yet conducted in Alzheimer,s researchto discover ... disease, the most common form of the disorder. ...
... Cell culture systems for specific neural cell types ... function. Purifying and Culturing Neural Cells: A ... cell populations from rodent tissues and culturing them ... The contributors describe in detail how to dissect ...
... penetrating icy blue glare of car headlights and could be fundamental ... the heart of diodes. Not the kind you might find in ... gallium nitride or InGaN. This alloy forms the light emitting region ... diodes (LDs) in the blue-UV range. Research into making ...
Cached Biology News:NIH-supported study identifies 11 new Alzheimer's disease risk genes 2NIH-supported study identifies 11 new Alzheimer's disease risk genes 3ASU, Georgia Tech create breakthrough for solar cell efficiency 2
(Date:7/29/2015)... San Francisco, CA (PRWEB) , ... July 29, 2015 , ... ... wake in the morning is quite normal. Although there are a considerable number of ... is well understood that this post-sleep material is a mixture of mucus, blood cells, ...
(Date:7/29/2015)... , ... July 29, 2015 , ... ... the company is making good progress in evaluating the full range of capabilities ... stem cells. Adult tissue stem cells perform the day-to-day renewal and repair of ...
(Date:7/28/2015)... July 28, 2015  PDL BioPharma, Inc. (PDL, or ... the Company will release its second quarter 2015 financial ... Wednesday, August 5, 2015, after market close. PDL,s management ... at 4:30 p.m. Eastern Time to discuss the financial ... be available via the webcast link on the PDL ...
(Date:7/28/2015)... DUBLIN , July 21, 2015 ... the addition of the "Biomedical Refrigerators and ... Growth, Trends and Forecast 2014 - 2022" ... global biomedical refrigerators and freezers market has been ... diagnostic centers, blood banks, and others. The others ...
Breaking Biology Technology:What Are ‘Eye Crusties’ Made Of? uBiome Invites Citizen Scientists to Find Out 2What Are ‘Eye Crusties’ Made Of? uBiome Invites Citizen Scientists to Find Out 3What Are ‘Eye Crusties’ Made Of? uBiome Invites Citizen Scientists to Find Out 4Asymmetrex Plans to Report Results From Adult Stem Cell Technology Development Milestone Studies At End of Summer 2Asymmetrex Plans to Report Results From Adult Stem Cell Technology Development Milestone Studies At End of Summer 3Asymmetrex Plans to Report Results From Adult Stem Cell Technology Development Milestone Studies At End of Summer 4PDL BioPharma to Announce Second Quarter 2015 Financial Results on August 5, 2015 2Biomedical Refrigerators and Freezers Market Report - Global Industry Analysis 2015 2Biomedical Refrigerators and Freezers Market Report - Global Industry Analysis 2015 3
... institute on Monday in Milwaukee. Milwaukee ... southeastern Wisconsin is the goal behind the formation of ... a $1 million grant from the University of ... Health Technologies is intended to foster more cooperation between ...
... help to explain Wisconsin's efforts to compete in a ... in Milwaukee, Hewlett-Packard vice president Kevin Gilroy said the ... to stand out in the crowd. The worldwide "digital ... capital are no longer barriers to entry in business. ...
... (PDS) has hired a new vice president as it plans ... , ,The company which maintains offices in Oconomowoc, Brookfield ... services for medium-sized and large organizations. Austin Park, the company's ... restructuring his group and bringing it new focus. , ,Park, ...
Cached Biology Technology:New biomedical institute aims to unite business and academia in SE Wisconsin 2New biomedical institute aims to unite business and academia in SE Wisconsin 3New biomedical institute aims to unite business and academia in SE Wisconsin 4In an increasingly 'flat' world, Wisconsin must adapt to compete 2In an increasingly 'flat' world, Wisconsin must adapt to compete 3