Mushrooms – magic !

September 30, 2011 in Photo Posts by davejsblog


Shipley NR, Mapperley sightings

September 30, 2011 in Read Posts, Sightings by davejsblog

unknown fungi

A light stroll around Shipley and Mapperley was not only light on the person, but also light on the wild-life, ducks on a lake a few things flying about was about it, but it was nice to note that Wigeon and Shoveler were moving in for the winter, Shipley Lake could be really good for winter wild-fowl with a little care.

A large dark bird of prey had me going for a minute or two doing what large, dark raptors tend to do – pretend to be something else. I was having none of it, its strange ways were not going to phase me ! just a common or garden Buzzard !
Shipley NR. 22 Wigeon, 18 Gadwall, 9 Shoveler, 2 Cormorant, 2 Little Grebe, 5 Great Crested Grebe, 70 Black-headed gull.
Butterflies. 2 Small Copper, Red Admiral, Speckled Wood.

Scientific Names

September 27, 2011 in Misc by Simon Horsnall

Perhaps the most off-putting things about entomology is that none of the things have common (vernacular) names.  Hopefully this will clear some of the confusion.

First, why bother with scientific names (preferred to Latin names as many are Greek) at all?  Whenever a new species is found, it is assigned a scientific name.  This uniquely identifies the organism and is universal throughout the world.  There is no need to introduce a vernacular name.  Also, the Hogweed Bonking Beetle and Swollen-thighed Swollen-thigh (genuine suggestions) may not be understood even in the country of origin, let alone internationally.

Each name is fully described by four parts: The genus name, the species name, the author and the date.  An example would be Dytiscus marginalis Linnaeus 1758.  By convention, the genus and species names are in italic script.  The genus is capitalised while the species name is lower-case. The species name must agree in gender with the genus name hence the change from Delichon urbica to Delichon urbicum as the House Martin.  The original was a relict from Linnaeus’ original classification where urbica agreed in gender with Hirundo.

The genus name must be unique within a Kingdom (Plant, Animal, Bacteria, Fungi and Protist).  However, they do not need to be unique across Kingdoms.  Thus Oenanthe is the Wheatear in the Animalia but Water Dropwort in the Plantae.

Then comes the rules on naming.  This deals with changes in genera, two people describing the same species and people giving two species the same name.  Most of this occurred as a result of the rush to name European fauna in the late 1700s and early 1800s.  These are adjudicated by the International Convention on Zoological Nomenclature.

Poecilus cupreus (Linnaeus) 1758.  Linnaeus placed this species in the genus Pterostichus.  The author name is placed in brackets to denote a change in genera.

If two authors described the same species, the first name chronologically takes precedence.  This is called the Principle of Priority.  Hence Dysticus semisulcatus Muller 1776 takes precedence over Dysticus punctulatus Fabricius 1777.  There are approximately 2 -3 million of these.  This means mistakes are very difficult to correct.  Hence Apis mellifera Linnaeus 1758 takes precedence over the more scientifically correct Apis mellifica Linnaeus 1761.  Likewise Aeshna isoceles Muller 1767 was a spelling error and various groups are now striving to get the name changed to Aeshna isosceles.

Sometimes two authors used the same name for different species.  This is best illustrated using the weevil Curculio fasciatus Scopoli 1763.  Scopoli described a species from Slovenia.  The following  also described a Curculio fasciatus: Strom 1768 (Norway), De Geer 1765 (Sweden), Muller 1776 (Denmark), Fourcroy 1785 (France), Olivier 1790 (France) and Marsham 1802 (Britain).  In this case we use non, nec or not between the primary author and subsequent authors: Conus catenatus Sowerby 1850 nec Sowerby 1875.

Sometimes the above rule does not apply.  The Commission has ruled on 17 species where the wild form is pre-dated by its domestic form.  For this reason, the Domestic Cat Felis catus Linnaeus 1758 should take priority over Felis sylvestris von Schreber 1775.  However, the Commission has ruled that F. sylvestris shall be conserved.  For those who believe the two to be the same species then F. sylvestris should be used, for those who consider them separate speceis F. catus and F. sylvestris are used and those that consider the Domestic Cat a subspecies should use F. sylvestris catus.

Sorry it was a bit heavy on science and words with no pretty pictures.

 

Black-headed Gull

September 27, 2011 in Photo Posts by davejsblog


Shipley NR. Manor Floods and Straws Bridge

September 27, 2011 in Read Posts, Sightings by davejsblog

Small Fungi-Shipley Wood

Had a potter around Shipley NR and a couple of its neighbouring sites mainly pointing the camera ! Finally learned that a tripod is a necessity ! I now carry a small, lightweight Slik along with my 50mm. ‘scope and bridge camera, so walking is not too bad.

I went looking for fungi but apart these on the left I didn’t find any, I did see a lot of Migrant Hawker dragonflies, but these were far too busy for me to lock-on for a shot.

Shipley NR. 8 Mute, 7 Canada Goose, 20 Gadwall, 16 Wigeon, 8 Shoveler, 3 Kestrel, 2 Meadow Pipit, Great Spotted Woodpecker. Manor Floods. 25 Black-headed Gull, Grey heron, 5 Swallow. Straws Bridge. Teal [eclipse male]

Butterflies. Red Admiral, Speckled Wood, Small White. Dragonflies. Migrant Hawker [fairly numerous] Common Darter [odd singles]


A Few Shots From Shipley And Straws Bridge

September 27, 2011 in Home by davejsblog

Male Teal-eclipse plumsge.

Greylag Goose.
Grey Heron.

Greylag Goose.

Moorhen.
Great Crested Grebe.
Canada GooseGreylag Goose.

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by lammie

Water Birds?

September 26, 2011 in Holiday and Trip Reports by lammie

Watched these as they were trying to get away from the boat so thought I’d take a few snaps of them. Quality isn’t all that good due to me being on deck ten at the time, and they are large crops.

 

Could have done with Paul’s a long lens.

Don

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by lammie

Butterflies on Corsica.

September 25, 2011 in Holiday and Trip Reports by lammie

These were taken during a 3 hour bus trip up into the woods and hills of Corsica. Didn’t see much in the way of bird life, only a few glimpses from the bus but couldn’t manage ti ID them. These pics were taken during the two stop offs that were made, I’ve no idea what the yellow red and white ones are, think the blues are Common Blues.

 

 

Hope you like and any info on these is welcome.

Don

Recent site problems

September 24, 2011 in Latest News by ChrisLuv

Apologies for the recent downtime for the site, unfortunately runnign a site like this is a constant battle against cyber criminals who wish to hijack the site to host fake sites (such as banking “phishing” sites). These people will write script that scour the internet and look for vulnerabilities in the code in the components we use on the site, when they find one they will use it to inject their own scripts to install these fake sites.

At no point was anyone trying to target users of this site, the hacking is of a much more international flavour than that. However it is worth remembering simple security fundamentals when working online.

1. Use a secure password made up of numbers and letters
2. Use different passwords across a number of sites, not just one across all your email, bank, this site, etc.
3. Change your password regularly
4. Watch for suspicious activity e.g. EVW will NEVER ask for credit card details etc.

Like I say, users of this site were never in danger and the hosting company quickly spotted the problem and stopped all access to the site so I could resolve the problem.

Thank you for all the kind messages and support over the last few weeks, its good to know the hard work that goes into keeping this site running is appreciated. It gets you down when people try and undo your hard work and the support of the site community is what keeps this site going.

Any questions please don’t hesitate to contact me.

If you notice any features etc that I haven’t got working yet please let me know, I had to rebuild the site almost from scratch using a backup so there may be a few niggles.

The forum is still down while I investigate if that has any vulnerabilities that caused the security to fail.

Cheers,
Chris (webmaster)

Cardigan Holiday

September 24, 2011 in ChrisLuv's Birding Blog by ChrisLuv

A family holiday to Wales and not much chance for birding, but Chough, Rock Pipit, Black Redstart, Wheatear, Ringer Plover, Oystercatcher, Red Kites (lots!) all seen. Here’s some photos.