Musings

Thursday, December 31, 2015

Little Egret

"Little egret" by Karthik Easvur - Own work. Licensed under CC BY-SA 3.0 via Commons

So here is the 365th post for 2015. I have scratched my head about which species to make the last. All the species I have photos of have been included already and I didn't get out today to find a new one. 
The choice of Little Egret, Egretta garzetta, was made because birds were the first 'wildlife' I began to take notice of and their establishment as a breeding bird in the UK is a relatively recent phenomenon which many consider evidence of climate change. Their big cousin, the Great Egret, is soon to follow in its footsteps.
And it is its feet that are worth noticing. Usually you can't see them as they are wading about in shallow water, but they are bizarrely yellow. Perhaps because on light muddy or sandy shores it disguises them better? Not a strategy shared by other birds with similar feeding habits.

Will I post again tomorrow?

I have decided to stop posting 'daily' but to continue to post when I encounter a new species. It has been a great thing to do over the last twelve months and the aim, to enhance my appreciation of other living things, has been amply met. I have learnt a lot and developed an appetite to learn more. It feels like a proper beginning of something; it's not quite clear what.

Wednesday, December 30, 2015

Azure Damselflies


A pair of Azure Damselflies, Coenagrion puella, flying in tandem and laying eggs in the pond back in June.

Tuesday, December 29, 2015

Iris Rust


This Iris foetidissima leaf is infected by the Iris Rust, Puccinia iridis. It is the sort of life one overlooks, even as someone with an expressed interest in natural history. The Rusts are all in the genus Puccinia. They are all obligate parasites of other plants and part of the Fungus kingdom, in the Basidiomycota phylum. There are over 4000 species worldwide, many of the them significant economic pests.

Labyrinth Spider


You have to look carefully but when you do you can just make out the palps of a labyrinth spider, Agelena labyrinthica,  waiting patiently at the end its tunnel.
It is common in the south of the country and is often referred to, inaccurately, as a 'funnel web' spider. 

As usual, there is an impressive amount of information out there on the web, in particular the Spider and Harvestman Recording Scheme.

Sunday, December 27, 2015

Neat Feather-moss


Another moss, this time collected on our Boxing Day walk across the Downs from Firle Beacon and back along the old coach road for a warming pint of Harveys in the Ram's snug. It is Neat Feather-moss, Pseudoscleropodium purum, and this is a terrible photo of one of the branches of it taken through the stereomicroscope. Through the hand lens it appears to have succulent overlapping leaves that completely obscure the stem, each with a small recurved mucronate point.
It is common throughout the British Isles.

Saturday, December 26, 2015

Dangling Marsh-lover


Yes, another find from Ashdown. I think it's the first hoverfly (Diptera order, Syrphidae family) on the blog. I was looking at the excellent Hoverfly Recording site and according to them 106 hoverfly species have been recorded in my postcode (BN7)! This is Helophilus pendulus, one of the commonest species in the UK. Besides being important pollinators, hoverfly larvae are big aphid-eaters, making them a valuable friend in the garden.

The Streakt Cloudy Hog


Having done the Streaked Golden Hog (aka Small Skipper) I realised I hadn't done this beauty, photographed during my extremely productive sojourn to Ashdown Forest back in July. It is the Large Skipper, Ochlodes sylvanus, the commonest of our eight Skipper family (Hesperiidae) butterflies. It used to be known as The Chequered Hog or Streakt Cloudy Hog - much better names if you ask me, especially the latter.

Thursday, December 24, 2015

Roesel's Bush-cricket


Found on the same day as the Mottled Grasshopper, this is a bush-cricket: Roesel's Bush-cricket, Metrioptera roeselii. You can tell a bush-cricket from a grasshopper easily: the latter have long antennae, usually longer than their bodies. Also the females have long, scythe-like ovipositors. Roesel's Bush-cricket has a cream edge to the prothorax. It is also an organism that is spreading in the UK as a result of global warming.

Wednesday, December 23, 2015

Small Purple-barred


Another find from the Ashdown haul. This is a Small Purple-barred, Phytometra viridaria, whose larva feed on Common and Heath Mildwort which is plentiful around where it was found.

Goldenrod




Having re-discovered my photos taken on the camera (or possibly Ian's camera) there are lots of things from our trip to Ashdown Forest that I didn't use nearer the time. This is one - a rather striking member of the Daisy family, about 70cm tall, with delicate flowers in a tight raceme. It's Goldenrod, Solidago virgaurea and at the time I didn't recognise it. The upper leaves are quite distinctive and differ from the basal rosette of long obovate slightly toothed leaves.
It is found in a range of habitats: dry woodland (where it can be an Ancient Woodland Indicator), grasslands (as here), cliffs and dunes.

Mottled Grasshopper

You will have to zoom in or take my word for it, but this is a Mottled Grasshopper, Myrmeleotettix maculata. You can tell because of the distinctive club-tipped antennae (lacking a white tip). This was take up on the heath in Ashdown Forest back in July.

Sunday, December 20, 2015

Great Cormorant

Crossley ID Guide
Plenty of these in the Ouse Valley. They nest colonially on a tiny island in a small lake made by the owner of a local farm. The vegetation has been ruined through shear numbers. The Great Cormorant, Phalacrocorax carbo, is not to be confused (but often is) with the Shag, most notably by Christopher Isherwood in his poem The Common Cormorant.

Creeping Feather-moss

Amblystegium serpens (Creeping Feather Moss)
Photo: Bob Osborn (via Flickr)
The problem with mosses is that it's very difficult to show them well in photographs. I was going to take a photo through the microscope but it didn't come out well and wouldn't be that instructive. This is a moss collected growing on the site of a WWI sea-plane hangar at Newhaven. (Well it's not the actual moss but the same species.) This time keying it out was a bit simpler - Creeping Feather-moss, Amblystegium serpens. It's very common and usually found on living or dead wood, but also on soil and stones, the bases of walls and tarmac.

Saturday, December 19, 2015

Rook

"Corvus frugilegus -Dartmoor" by Brian Snelson Licensed under CC BY 2.0 via Commons
I've noticed that some Rooks, Corvus frugilegus, are already nest building and possibly even sitting on eggs. It's such a mild winter that this can happen, although a cold snap can be catastrophic for the young if it is prolonged after hatching.


Black-Headed Gull

"Black-headed Gull from the Crossley ID Guide Britain and Ireland" by Richard Crossley - The Crossley ID Guide Britain and Ireland. Licensed under CC BY-SA 3.0 via Commons
There were plenty of these around today down at Newhaven and roosting on the Lewes Brooks RSPB reserve earlier in the week. The 'black' heads of the Black-Headed Gull, Chroicocephalus ridibundus, is in fact chocolate brown and only seen in the breeding season. They have black wing tips which distinguishes them from the similar Mediterranean Gull. The latter also has a heavier bill without the black tip and a truly black hood which extends further down the nape.

Purple Sandpiper

"Calidris maritima" by Andreas Trepte - Own work. Licensed under CC BY-SA 2.5 via Commons
Saw about eight of these little chaps milling about on the lowest parts of the east arm of Newhaven harbour. They are funny to look at with their short legs and dumpy bodies. The slightly down turned beak and beady eye gives them a somewhat shifty appearance. There's something incongruous about their habit of pootling about where the mighty ocean crashes into the land right next to them. The Purple Sandpiper, Calidris maritima, isn't particularly purple even in its breeding plumage. It breeds on Arctic islands and most don't come as far south as Sussex. Their loss from this county is possible with continued global warming, although some regularly overwinter in Portugal.

Tuesday, December 15, 2015

Pointed Spear-moss

CiarĂ¡n Byrne @kiwibyrne  

This grows (abundantly) in my lawn and I've tried a couple of times before to identify it. The last time was probably February, which was probably the last time I'd got the moss book out. It was a eureka moment to finally pin it down but not before I'd arsed about in the acrocarp keys: what an idiot! It's a pleurocarp of course. That's what happens when you don't know what you're doing and you don't start at the beginning.
Anyway, having dissected it under the stereomicroscope and looked at the cellular structure of the leaf under the compound microscope, I could have identified it without either if I'd just followed the key.
It is Pointed Spear-moss, Calliergonella cuspidata. I've nicked the photo from Ciaran Byrne's twitter feed. Ciaran is an amazing ecologist and prolific tweeter. I would urge anyone with Twitter access to follow him.

Monday, December 14, 2015

Floating Sweet-Grass

This is Floating Sweet-Grass, Glyceria fluitans, doing what it says on the tin. It is common in slightly nutrient enriched fresh water ditches where it forms rafts, as seen here.

Watercress

This is Water-cress, Rorippa nasturtium-aquaticum, which is common in the ditches around the reserve. The Latin name gives away its culinary comparison with nasturtium - a peppery flavour. Care should be taken if eating wild Water-cress as it can harbour the cyst stage of liver-fluke, a parasite of sheep and cattle. Only take it from a stream with running water where there are no grazing animals.

Broad-leaved Pondweed


It's been so mild that there is quite a bit of growing going on out there. This is Broad-leaved Pondweed, Potamogeton natans, growing in one of the many ditches. It's only in this ditch that I've come across it, unlike the ubiquitous Lemma minuta. The pondweeds are a tricky group with around twelve species. This is fairly easy to identify because the leaves float and there is often a discoloured joint at the end of the long leaf-stalk.