Friday, March 21, 2014

Red squirrel back to Portugal after extinction of centuries

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Hundreds of years after having been presumed extinct in Portugal, the red squirrel is returning to the country, after an expansion from Galicia, in Spain, in the years 80. In 2000, the animal was already distributed throughout the north country by the River Douro, and today there are already reports of Red squirrels almost to the Tagus River.

According to the biologist Rita Garcia Rocha, of the University of Aveiro (UA), nobody knows for sure, however, exactly where this species occurs. The biologist of the AU, which is studying the expansion of that species in the country, launches an appeal for them to be reported sightings of animals and traces of their presence: "If you see a squirrel be sure to tell us where you found it."  Records can be sent to the Facebook page.

The project, called red squirrel in Portugal, aims to "understand the expansion of the red squirrel in the national territory, what are the factors that influence this expansion and their behavior patterns", reveals the researcher.

In development in wildlife Unit of the Department of Biology of the AU, the project wants to still do the genetic characterization of the species for which, in the final set of results, show what the future of the squirrel in the national territory.

The biologist describes the squirrel as "a friendly rodent, with a very fuzzy tail and which can be sighted in Portuguese forests, mainly in the treetops. Despite its name red squirrel, the coloration varies from Brown to black completely ".

The biologist also asks for being reported indications of their presence, such as pinecones gnawed on the floor of forests, with a peculiar pattern, because the animals leave the scales from the top, forming a small Tuff, and are fairly easy to recognize.

Images: Wikimedia Commons/Rodrigo Saldanha de Almeida/Peter G Trimming/Simbe90/zoutedrop/rengber 

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Thursday, March 20, 2014

Plants can generate sustainable energy as they grow

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A Dutch start-up, Plant-and developed a way to use the plants as a continual source of clean energy â€" you only need a light source, carbon dioxide, water and plants.

When plants create their own food through photosynthesis, much of the organic matter generated is excreted into the soil through the roots. This matter is consumed by microorganisms that live in the soil. In turn, these microorganisms release electrons, as byproduct of this consumption. This start-up system consists of placing an electrode near the root system of the plants, which stores this wasted energy and converts it into electricity, referred to Inhabitat.

The process is similar to simple school experiences made with electricity, using apples or potatoes to create batteries. However, this system has the advantage of not harming plants, which continue to grow normally even in the presence of the electrodes, and can be, in this way, a constant source of energy, both day and night.

The system works best in damp or flooded land, as the rice fields, and it doesn't matter if the water use is polluted or has already been used. This factor allows improper areas to cultivation can be reused as an energy source. The system does not require the installation of elaborate infrastructure, which can allow carry electricity to isolated regions that are not served by mains.

Is already being tested in the Netherlands a prototype green roof that uses this technology. Currently, the Plant-and can produce enough energy to power a mobile phone, but the aim is that this method be used soon to collect a larger amount of energy â€" enough to power a home.

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Guimaraes receives exposure on recycling Saturday

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For nine days, from Saturday to March 30, the GuimarãeShopping will be the stage of the exhibition "recycling of Tetra Pak Packings", sensitizing visitors to the importance of this theme.

The exhibition aims to answer several questions, including: "do you know what are made the packaging normally used for the consumption of milk? And that destination must have once used? " The questions will be addressed by Tetra Pak.

Aimed at children and families, the initiative will be present on the Floor of 0 GuimarãeShopping, aiming to raise awareness of the importance of separation of cartons for liquid foods and for recycling after being deposited in the yellow recycling facility.

Visitors can try games, watching movies and participate in educational workshops â€" where recycling can learn how to build various objects from the material that composes the Tetra Pak packaging.

"With this exhibition we want to show visitors how the recycling of our packages and applaud the critical role that all play in this process, through the separation and placement of used packaging in yellow recycling bin», explains Ingrid Hawk, head of Tetra Pak ' s Environment in Portugal.

One of Tetra Pak ' s environmental targets for 2020 is to double to 40% recycling rate of their packaging. In this sense, the company focuses many of its efforts in awareness-raising activities of consumers.

Learn more about the exhibition at Protects What's good.

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Wednesday, March 19, 2014

EVOA: a haven for birdwatching on the outskirts of Lisbon

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Flamingos, eagles, marrequinhas, fishing-geese, herons, warblers. In total, the estuary of the river Tagus is home to about 200 different species of birds. Was the natural wealth of the estuary itself that it has boosted the site as one of the most important meeting points, at national level, of migratory species.

Among this wealth of the Tagus estuary and the Lezíria de Vila Franca de Xira-where the Tagus and Sorraia converge, giving rise to the largest wetland of Portugal, was born at the end of 2012 a natural paradise for birds EVOA name (space of Visitation and birdwatching).

Celebrating a year of life, this space is assumed already as a place of excellence for birdwatching and for those who want to learn more about the biodiversity that exists in the region of greater Lisbon.

About 70 hectares, EVOA integrates three freshwater ponds â€" the main, the Shallow and Wide. In each of these wetlands that are strategically placed observation points of birds, although the animals can be observed from any point of booking.

Although the estuary receive 200 different bird species, not all pass through EVOA. According to Sandra P, Coordinator of the space, this last winter were accounted for approximately 14 thousand birds of 45 different species.

In addition to the birds, visitors can still find wild boars and foxes, which circulate freely by booking online. Also there were otters, but currently no animal of this species inhabits the place.

Dissemination through the "pass it on"

Since the opening in April of 2013, who have passed away by EVOA about 4,000 visitors, being that most visits occur between November and January, when there are more birds in the reserve due to winter migrations.

Visits can be made autonomously, but this mode is more advisable to observers and experienced photographers. For amateur observers a guided tour is the best option â€" there is no risk of losing the tracks and the identification of birds is facilitated by the help of guides.

The best time of day to visit is during the high tide, since the flow of the river and estuary birds on refuge in artificial ponds EVOA, allowing for better observation.

According to Sandra P, most visitors never made bird-watching before and is from Lisbon. "Maybe the inhabitants of Vila Franca do not appreciate so much space for are already in the lezíria", points to the Coordinator. Most who visit this paradise undisturbed in the middle of the lezíria goes into groups or families or in study tours offered by various educational institutions. "It is customary to see a person who came in group go back some time later with another different group. Works quite the wrong word ", indicates.

According to the Coordinator of the space, the objective is that the Center will receive between 10 to 15 thousand visitors annually within three years, which should promote the self-sustainability of the place.

In addition to the rails and strategic points of observation of the birds, the EVOA has an interpretive center where visitors reception is made. In the Center there is a permanent exhibition where visitors can get to know the different bird species and their characteristics, migration routes and a little of the history of the estuary and the lezíria. There is also an interactive space with games and movies.

In addition to visitors, the playful and components still gathers EVOA pedagogical, by performing and workshops and ateliers, both for families and for the schools.

The project was born of a protocol EVOA, initiated in 2007, between the breeze and the Companhia das Lezírias, owner of the land, under the programme for Biodiversity Breeze. The space cost three million, with the breeze contributed €1,3 million. The remaining funds came from the National Strategic reference framework. Later, also the Institute of nature conservation and forestry, city of Vila Franca, of Aquaves, the Association of the beneficiaries of the Lezíria Grande de Vila Franca de Xira and the League for nature protection joined the project.

Currently, the space is guaranteed by the Breeze and the Companhia das Lezírias until 2017, at which time it is anticipated that the space becomes self-sustaining.

The EVOA can be visited throughout the year, with prices ranging between € 6.6 and € 12. However, this year the space will be closed during July for maintenance of Rails, month in which there are fewer birds in the reserve. 

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Tuesday, March 18, 2014

Gold particles found in Australian eucalyptus trees

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Gold particles were found in leaves of eucalyptus tree in Western Australia, according to researchers at the Earth Science and Resource Evaluation (CSIRO). The discovery was published in Nature Communications, advances the National Geographic, and indicates that the eucalyptus trees with large roots â€" which can reach 40 feet deep â€" steal gold ore deposits and store it in their leaves.

"Eucalyptus acts as a hydraulic pump-its roots extend tens of meters into the soil and suck the water containing gold. As the metal is toxic to the plant, the substance is expelled to the leaves and branches, "says the research.

Still, the ore concentration is very low â€" 46 parts per billion--that is, less than 0.000005% of the weight of each leaf. To make a gold ring would require 500 trees, advances the study.

The real usefulness of discovery is not in wealth that comes from holding, of course, but the fact that she will help companies to find untapped deposits. This method promises to be more eco-friendly â€" even if, ideally, the particles should stay where they are.

For this discovery, researchers, led by Melvyn Lintern, compared the Eucalyptus leaves from nearby Australian prospectors with leaves of the same species, created in an oven. In the lab, half grew up with soil dosed with particles of gold, while the other half had natural soil. The comparison is elaborated in the document published.

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Rock in Rio: Amb3E challenge festival-goers to recycle

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The Amb3E will challenge all visitors of Rock in Rio-Lisbon to give a new life to your used equipment. On the stand of the Association, at the parque da Bela Vista, the festival-goers, testing your marksmanship, will forward the waste electrical and electronic equipment (WEEE) for the Electron to be properly recycled. Those who show that they have the most apt sight will be able to take home gifts.

Amb3E's stand will recreate a tent, where the audience will be able to do target practice, doing fall several appliances at one point electron. Simultaneously, mobile brigades disguised old phones Electron will traverse the city of Rock, encouraging the public to pass by stand and give a new life to your used equipment. The activation will be in charge of the Pepper.

This is the first time the Amb3E will be present at Rock in Rio-Lisbon with a stand. The action is part of the Mission of the Association to sensitize the population to the importance of the recycling of WEEE. Since its inception in 2006, the Amb3E has promoted and supported several projects of communication on this subject, as schooling electron and Electron headquarters, and more recently the POW-Gives the Power to the electron and the project 80.

Photo: Rodrigo Sá/Creative Commons

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Refer will provide free wi-fi in 30 seasons until late April

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Until late April, Refer claims to have wi-fi in 30 seasons as a result of the partnership with the digital marketing agency Go4Digital. The company has already launched the Wifi network Refer Free train stations Lisbon of STA. Apolónia, Cais do Sodré, Entrecampos and Seven Rivers and, according to one less Car, is also market this communication support for the brands.

"This network provides not only free Internet users, but also allows the brands have more a communication platform," stresses Go4Digital. Wi-fi is available 12:0 am a day and can be accessed from your computer or mobile devices.

By the end of the month, the wi-fi network of Reference will be extended to nine stations, namely Rossio, Amadora, Sintra, Roma-Areeiro, São Bento, Campanhã, Faro, Coimbra and Aveiro. By the end of April, the purpose of the Reference goes through equip a total of 30 railway stations across the country.

According to a study by the Marktest, quoted by Go4Digital, there were 3.5 million users of smartphones in Portugal in August of 2013, which represents 40% of the total number of holders of mobile phones in the country.

It is recalled that, at the end of last year, also the Metropolitano de Lisboa went on to provide wi-fi in some stations.

Click here to see the video presentation of the Wifi network Free Reference.

Foto: Coimbra B/Pepe Martin/Creative Commons

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