Birds and Insects Autumn-Winter 2015

Reports from Dol, many thanks Steve!

Kestrel, Jelsa Kestrel, Jelsa Photo: Michael Southall

My bird watching sadly has been rather limited this year, the intention is to make more detailed notes in 2016 - or just wishful thinking.

I had a friend came over in September for a week and I think he listed 29 species in that time excluding Bee-eaters which had gone by then. Saw my last Swift on 27th October, two months later than we would have in the UK. My friend specialises in Moths and set up a couple of traps in my garden for a week. He was delighted with the quantity and species. Probably about 200 different species which I have pictures of - unfortunately I am not knowledgeable enough to identify any.

Humming-bird hawk moth.

The humming-bird hawk moth is spectacular in flight, and safely inconspicuous when at rest.

 
Humming-bird hawkmoth. Photo Michael Southall

I erected a bird table about three months ago and was rather disappointed by the lack of interest in it. However in the last three weeks it has been a source of food for about 10 Blue Tits / some Great Tits and a Robin.  There clearly is enough natural food for several other species.

Blue-tit at the bird table. Photo Steve Jones

Blackcaps are feeding on pomegranate tree nearby, the occasional Wren pops into the garden and numerous Chaffinch feed off the ground in a neighbours field. Sova Usara calls regularly but seeing it is a little more difficult although some super views in August on an old ruin next door. Saw a male and female Cirl Bunting on some Blackberry bushes nearby on Monday/Tuesday this week.

Last week was seeing Black Redstart/Redstart ( I thought Redstart but two friends think Black Redstart so we will go with them - it is a female and they are both pretty similar). It sort of makes sense as I was positive I saw a male on roof briefly the other week.

redstart
Redstart. Photo Steve Jones

I had two or three trips to the airfield in the summer/late summer and found a few species there. Managed to get a reasonable picture of a young Golden Plover which was a surprise to me. Having seen them in flocks on Dartmoor in the Winter, I have never seen one solitary bird. I also saw Yellow Wagtails. There was a solitary Heron at the small pond near the airport, but I was expecting more, as it is the only source of water I know of. Blue Rock Thrush nested nearby which solved a problem I had had for a while, I was familiar with the call over several years, but hadn't managed to tie it up to the bird until now. Also Nightjars were heard most evenings.

Olive picking yielded an unexpected treasure

A great find whilst picking Olives: this caterpillar, which I estimate to be about 10cm long X 1cm wide, later becomes the deathshead hawkmoth ( I didn't know that, but am reliably informed - a fantastic sight and so well camouflaged).

Deathshead Hawkmoth caterpillar. Photo Steve Jones

I will endeavour to detail more next year - you mentioned hearing a Cuckoo on April 24th, which is interesting, as that is around the same time that they reach Dartmoor. There has been an interesting project in the UK for the past 3 years now, involving radio tagging cuckoos to track their progress and whereabouts. Really fascinating. I am wondering whether or not they actually breed here, or just pass through. And what is their host bird if they breed here?

Steve, Dol, December 19th 2015

I have been a bit disappointed by the lack of birds in the winter, I was expecting far more, but pleased my bird table is attracting some of the more common speicies. Did see four Buzzards conveniently perched on four pylons on my way into Stari Grad this morning.

Steve, Dol, December 23rd 2015

I went off bird watching early Xmas morning  - over to the airfield and the pond nearby.

Pied wagtail, December 25th 2015. Photo Steve Jones

Saw the usual Heron and 2 Pied Wagtail.

Heron, 28th December 2015. Photo Steve Jones

Saw several flocks of Chaffinch in trees (overnight roosts perhaps) between there and Stari Grad. Up to 60 or so on one tree and a couple of instances of similar driving back to Dol.

Flock of goldfinch in flight. Photo Steve Jones

Another pair of Cirl Buntings down near the electricity sub-station at Stari Grad. Several Buzzards but all too distant to get decent pictures. I have noticed Great Tits in the last two days are actually calling now.

Steve, Dol, December 27th 2015

For more of Steve's beautiful nature pictures, see his personal pages: Bird Pictures on Hvar 2017, and Butterflies of Hvar

Nalazite se ovdje: Home Okoliš Novosti iz prirode Birds and Insects Autumn-Winter 2015

Novosti: Ekologija.hr

  • UN-backed report finds even temporary rises above Paris agreement target could cause harm to glaciers and polar ice sheets

    Earth’s icy regions face such dangerous melting that global heating should be brought back below 1C after an inevitable period of overshooting global temperature targets, a UN report has found.

    Permanent and widespread losses of snow and ice expose a “persistent myth” that overshooting the 1.5C target of the Paris climate agreement – to 2C or 3C – could be manageable or even preferable to urgent cuts to emissions, the report found.

    Continue reading...

  • Devon nature reserve says ‘reckless’ theft of narrow-headed ant colony sets back years of conservation work

    A nest containing up to 5,000 of England’s rarest ant species has been stolen from a nature reserve, a conservation charity has said.

    Devon Wildlife Trust (DWT) said a nest of narrow-headed ants had been dug up and taken from Chudleigh Knighton Heath nature reserve in south Devon, which is the last place in England where the species still exists.

    Continue reading...

  • Action taken to prevent bottom trawling in the marine protected area and conserve porpoise populations

    Greenpeace activists have dropped boulders in the North Sea to snag the dragnets of industrial trawlers fishing in a marine protected area.

    Activists onboard the Greenpeace ship Arctic Sunrise dropped the giant stones to form an underwater barrier around the Southern North Sea marine protected area (MPA) – the UK’s most bottom-trawled MPA.

    Continue reading...

  • Disruption to winds above Arctic threatens to alter weather patterns across parts of continent in coming weeks

    The stratospheric polar vortex over the northern hemisphere is facing the prospect of an unusually early weakening. Forecast models suggest it could weaken significantly over the next 10 days, when it would typically be strengthening.

    A major sudden stratospheric warming (SSW) event is possible. This could influence weather patterns in the following weeks, increasing the likelihood of persistent areas of high pressure across the mid-latitudes and colder conditions weeks later.

    Continue reading...

  • A Guardian investigation has found that despite a recommendation to slow down, leading shipping companies continue to travel above advised speeds in a key habitat for cetaceans

    Marine biologist Alice Barbarioli waits with her camera trained on the horizon. A few minutes earlier, the hydrophone beneath the Pelagos research vessel detected codas – the sequence of clicks sperm whales use to communicate.

    The sperm whale reveals its head and dorsal fin as those onboard the vessel in the Pelagos sanctuary, a conservation area established to protect marine mammals in the north-western Mediterranean, rush to take photos and note the rhythm of its breathing. After a few minutes, the animal arches its back, and begins to head back into the depths of the sea. They wait to catch a glimpse of its tail.

    Continue reading...

  • Inkpen and Combe, Berkshire: If the price goes down, the village WhatsApp group lights up

    Beyond the reach of the gas mains, there is tension about the coming winter. Many rural homes have an open fire or wood burner, but most rely on kerosene oil for hot water and heating. Since the US-Iran war began, its cost has more than doubled. Currently, 1,000 litres (lasting 10-12 weeks) is £1,219. A year ago, it was £549. Seasoned wood is in demand.

    We watch the oil price rise, with none of the consumer protections afforded to gas customers. If the price per litre drops, as during the June ceasefire, the village WhatsApp group lights up.

    Continue reading...

  • Cop17, focused on protecting nature and restoring ecosystems, concludes on Saturday with critics saying system allows ‘one idiot’ to stall progress

    Calls are growing for major reforms to UN biodiversity summits as countries fail to deliver on their promises to halt the destruction of the natural world, with governments likely on track to continue their record of never having met a target in the 34-year history of the convention.

    Two weeks of negotiations at biodiversity Cop17 in Yerevan, Armenia, concluded on Saturday morning with countries vowing to redouble their efforts to meet this decade’s targets, which include commitments to protect 30% of the planet for nature, restore nearly a third of Earth’s degraded ecosystems and reform $500bn (£410bn) of environmentally damaging subsidies.

    Continue reading...

  • At more than $52m, the race has become the most expensive in US history, but residents are fed up with flooding

    Aida Havel mulled her fate over coffee after working the early voting polls all day in Kill Devil Hills, North Carolina. “We are trapped,” she concluded.

    The Dare county commission candidate lives about 50 miles (80km) south, on Hatteras Island on the state’s Outer Banks.

    Continue reading...

  • From feeding schoolchildren to recycling tyres, these entrepreneurs are challenging stereotypes while solving social and environmental problems

    Africa is thought to have a higher proportion of female entrepreneurs than any other continent and yet many still struggle to access financing. Four business leaders from Nigeria, Uganda, Kenya and Malawi tell us about the inspiration behind their success – and the challenges women still face.

    Continue reading...

  • Allerton Project attracts abundant wildlife and its success can offers clues to reversing the sharp drop in populations

    Farmer Alastair Leake is standing in a field of sprouting winter wheat, pointing at his experiment. One side was ploughed before planting, with green shoots breaking through neat rows of upturned soil. On the other, the crop was drilled directly into the earth, emerging through a messy carpet of “trash” – stems, stubble and crop residue from previous harvests.

    “When we’re watching to see where the birds are landing to feed, none of them are going on to the ploughed side,” says Leake, the director of the Allerton Project farm, standing on the trashy side. “They’re all coming and feeding down here.

    Continue reading...

Novosti: Cybermed.hr

  • Od otpornog škroba do staničnih stijenki biljaka, znanstvenici istražuju skrivenu konkurenciju i suradnju među crijevnim bakterijama, postavljajući intrigantna pitanja o tome što se događa s različitim vlaknima nakon što dođu do debelog crijeva.

  • U nedavno objavljenoj studiji znanstvenici su procijenili učinke konzumacije oraha na imunoglobuline (Ig) i antitijela usmjerena protiv lipoproteina niske gustoće modificiranih malondialdehidom (MDA-LDL). Nakon dvije godine, dugotrajna konzumacija oraha bila je povezana s ukupnim koncentracijama IgG-a u serumu koje su bile približno 6% više nego u kontrolnoj skupini, što upućuje na mogući utjecaj prehrane na cirkulirajuće imunološke biomarkere. 

  • Aorta se često prvenstveno smatra najvećom krvnom žilom u tijelu - izdržljivim kanalom koji dostavlja krv bogatu kisikom iz srca u svaki organ. No, sve više dokaza upućuje na to da je stijenka aorte također aktivno imunološko okruženje. Imunološke stanice koje se nalaze unutar ili su regrutirane u različite dijelove aorte mogu utjecati na to kako se ova žila razvija, prilagođava mehaničkom stresu i postaje osjetljiva na bolesti.

  • Međunarodna studija izvještava o 60-postotnom preživljenju bez progresije bolesti 10 godina nakon autologne transplantacije koštane srži, pružajući važne dokaze o trajnim pozitivnim kliničkim ishodima i dugoročnoj sigurnosti kod pacijenata liječenih zbog rane, teške sistemske skleroze.

  • Novo istraživanje pokazuje da osobe s glioblastomom imaju aktivnije trombocite – stanice koje sudjeluju u zgrušavanju krvi. Trombociti također komuniciraju s drugim stanicama i mogu utjecati na imunološku aktivnost. Hiperaktivni trombociti kod osoba s glioblastomom usporavaju djelovanje T-stanica koje se bore protiv raka, što može pridonijeti rastu tumora i napredovanju bolesti.

  • Prepune karotenoida i drugih bioaktivnih spojeva, klice brokule i mikrozelenje privlače znanstvenu pozornost. Karotenoidi su prehrambeni pigmenti koji doprinose boji voća i povrća te pomažu u nekoliko fizioloških procesa. Karotenoidi uključuju karotenoide provitamina A, poput beta-karotena, alfa-karotena i beta-kriptoksantina, te karotenoide koji nisu provitamin A, poput luteina, zeaksantina i likopena. Karotenoidi mogu utjecati na osjetljivost na inzulin, metabolizam lipida, adipogenezu i upalnu signalizaciju.

  • Zubna caklina je visoko mineralizirani vanjski sloj zuba. Caklina štiti unutarnje slojeve zuba od šećera i kiselina koje unosimo hranom, kao i od svakodnevnog žvakanja, grizenja i trenja. Ona je najtvrđe tkivo u ljudskom tijelu.

  • Znanstvenici s Instituta za imunologiju La Jolla (LJI) i Sveučilišta u Washingtonu (UW) otkrili su da pacijenti s lupusom imaju neobične mutacije koje njihova tijela mogu pretvoriti u bojna polja. Spomenute su mutacije raširene u imunološkim stanicama zvanim neutrofili. Druge imunološke stanice doživljavaju mutirane neutrofile kao prijetnju – te pokušavaju uzvratiti napad. Ta unutarnja borba može doprinijeti razvoju bolnih upala, iscrpljujućih bolova u zglobovima i drugih ozbiljnih simptoma lupusa diljem tijela.

  • Rad u noćnim smjenama tijekom trudnoće povezan je s povećanim rizikom od neuroloških razvojnih abnormalnosti otkrivenih probirom kod djeteta do 4. godine života, otkriva novo straživanje. No, duljina noćnog prenatalnog sna tijekom ovog razdoblja može promijeniti ovu uočenu povezanost.

  • Niske razine vitamina B12 povezuju se s kardiovaskularnim bolestima, što je potaknulo znanstvenike da prouče kako nedostatak tog vitamina utječe na krvne žile, što klinička ispitivanja otkrivaju o uzimanju dodataka prehrani te koji bi pacijenti od toga mogli imati najviše koristi.

Novosti: Biologija.com