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Hen harrier Northern Ireland population dropped by 26%, study findsThe population of one of Northern Ireland's rarest bi...
08/04/2024

Hen harrier Northern Ireland population dropped by 26%, study finds

The population of one of Northern Ireland's rarest birds of prey, the hen harrier, dropped by more than a quarter in seven years, a study suggests.

Only 34 territorial pairs were recorded in Northern Ireland in 2023 - a drop of more than 26% since 2016.

A 2011 independent government report estimated there should be about 150 pairs of hen harriers breeding in Northern Ireland.

Those behind the new survey said "things need to change".

The volunteers fighting to conserve NI's wildlife
NI 'among world's most nature-depleted areas'
The 2023 hen harrier survey was conducted in partnership with RSPB NI, Northern Ireland Raptor Study Group (NIRSG) and the Department of Agriculture, Environment and Rural Affairs (Daera).

'Things need to change'
Doctors Eimear Rooney and Marc Ruddock, survey co-ordinators from the NIRSG, said volunteers often found no birds in areas that once held the species.

"The hen harrier population in Northern Ireland is under immense pressure from a range of land management activities and human-mediated threats, leading to extensive and ongoing losses of suitable habitats and widespread disturbances at nesting and foraging habitats," the NIRSG said.

"The population has been displaced and disturbed for too many decades - things need to change."

Gregory Woulahan of RSPB NI said: "This is a drastic decline in numbers of hen harriers in Northern Ireland.

"One of the main reasons for this decline was loss of habitat.

"This, coupled with the landscape scale threats and pressures to the species, means we need a coherent, practical and policy-based restoration strategy for the needs of the hen harrier and its habitat.

"Unfortunately, this recent decline mirrors a similar population decrease within the Republic of Ireland in 2022."

Agriculture Minister Andrew Muir said he was concerned to learn of the declining population of the raptor.

He said action needed to be taken "to stop the decline of this iconic bird".

"But it can only be achieved through working in partnership with landowners, farmers, non-governmental organisations (NGOs) and all other stakeholders, to restore and enhance breeding habitats and appropriately manage activities which have the potential to cause disturbance and displacement," he added.

He has the ability to align two pictures of a subject taken from slightly different angles to give a sense of perspectiv...
13/10/2023

He has the ability to align two pictures of a subject taken from slightly different angles to give a sense of perspective - making a 3D view of a scene. He and collaborator Claudia Manzoni did this for the shortlist of possible sample sites on Bennu. They established the safest places to approach.

"I always say you need art as well as science," Sir Brian told BBC News. "You need to feel the terrain to know if the spaceship is likely to fall over or if it will hit this 'rock of doom' that was right on the edge of the eventual chosen site, called Nightingale. If that had happened it would have been disastrous."

They've also detected two or three other similar protostars in the immediate vicinity that are likely contributing to th...
21/09/2023

They've also detected two or three other similar protostars in the immediate vicinity that are likely contributing to the outflow's contortions.

Once you realise what's going on in the image around VLA1623, you can then pick out similar flows elsewhere in the Webb vista. There are a great many, which just illustrates how productive this region of space is.

JWST is a joint project of Nasa and the European (Esa) and Canadian (CSA) space agencies.

It took 37 hours for mission controllers to figure out if the interstellar command had worked as Voyager 2 is billions o...
29/08/2023

It took 37 hours for mission controllers to figure out if the interstellar command had worked as Voyager 2 is billions of miles away from Earth.

Staff used the "highest-power transmitter" to send a message to the spacecraft and timed it to be sent during "the best conditions" so the antenna lined up with the command, Voyager project manager Suzanne Dodd told AFP.

After communications were lost, the probe had been unable to receive commands or send back data to Nasa's Deep Space Network - an array of giant radio antennas across the world.

Scientists say limiting temperature rise to 1.5C is crucial to avoid the most dangerous impacts of climate change - alth...
01/08/2023

Scientists say limiting temperature rise to 1.5C is crucial to avoid the most dangerous impacts of climate change - although these increase with every extra increment of warming.

The 1.5C warming limit was partly designed to avoid crossing so-called "tipping points".

These are thresholds beyond which changes could accelerate and become irreversible in different parts of the Earth's climate system, such as the collapse of the Greenland Ice Sheet.

But it's not clear precisely where these thresholds sit. Some may have already been crossed; some may be further away than first thought.

It's exactly one year since the super observatory was handed over to astronomers to begin using.And to celebrate, the US...
20/07/2023

It's exactly one year since the super observatory was handed over to astronomers to begin using.

And to celebrate, the US space agency Nasa has just released a spectacular image of one of the most photographed parts of the sky.

It's the Rho Ophiuchi cloud complex, which is the nearest star-forming region in space to us, being just 400 light-years away.

Most are based on the Cubesat format, each about the size of an big bottle of supermarket cola. They can pack as much as...
30/06/2023

Most are based on the Cubesat format, each about the size of an big bottle of supermarket cola. They can pack as much as three litres of advanced electronics.

The UK's first Cubesat was built in Glasgow by the Clyde Space company. Then the US company Spire chose the city as their European base. Now there are more Glasgow built satellites in orbit than from any other city in Europe.

The mysterious phenomenon of dark energy might provide a solution. In the 1990s, astronomers found that the expansion of...
13/06/2023

The mysterious phenomenon of dark energy might provide a solution. In the 1990s, astronomers found that the expansion of the Universe was speeding up, rather than slowing down as might have been expected.

"Something out there is having an 'anti-gravity' effect - it's pushing rather than pulling. We don't know what that is, but it makes up most of the Universe. We call it dark energy," says Prof Tamara Davis, a cosmologist at the University of Queensland in Australia.

A van-sized object dug out a 150m-wide bowl on the Red Planet, hurling debris up to 35km (19 miles) away.In more familia...
31/05/2023

A van-sized object dug out a 150m-wide bowl on the Red Planet, hurling debris up to 35km (19 miles) away.

In more familiar terms, that's a crater roughly one-and-a-half times the size of London's Trafalgar Square.

And its blast zone would fit neatly in the area inside the UK capital's orbital motorway, the M25.

On the micro-scale, there are tiny columns or pillars within the rock that trace the connections between the individual ...
26/05/2023

On the micro-scale, there are tiny columns or pillars within the rock that trace the connections between the individual "mats" of microbes that build the stromatolites.

"These are strongly, strongly representative of a kind of microbial growth texture, which we call palisade structures," Dr Hickman-Lewis explained.

Two big engine firings from Orion's European Space Agency-provided propulsion unit - the first occurring last Thursday, ...
22/05/2023

Two big engine firings from Orion's European Space Agency-provided propulsion unit - the first occurring last Thursday, and the second in the past few hours - have since turned the ship for home.

Nasa is describing the return as its "priority one" for the mission. Engineers want to see proof that the vehicle can survive the heat of re-entry into Earth's atmosphere.

The Ariane doesn't have the energy to send Juice directly to Jupiter, certainly not within a useful timeframe.Instead, i...
16/05/2023

The Ariane doesn't have the energy to send Juice directly to Jupiter, certainly not within a useful timeframe.

Instead, it will dispatch the spacecraft on a path around the inner Solar System. A series of fly-bys of Venus and Earth will then gravitationally sling the mission out to its intended destination.

Arrival in the Jovian system is expected in July 2031.

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