martinjohnbishop's picture

Elytrigia atherica, Isola della Cona, Italy

Observed: 24th June 2010 By: martinjohnbishopmartinjohnbishop’s reputation in Plantsmartinjohnbishop’s reputation in Plantsmartinjohnbishop’s reputation in Plantsmartinjohnbishop’s reputation in Plantsmartinjohnbishop’s reputation in Plants
Species interactions

No interactions present.


martinjohnbishop's picture

Yes, the habitat is salty

It was growing on the upper shore above the normal high tide line of an overflow channel near the mouth of the River Isonzo.

Ray Arigho's picture

Totally wrong habitat diagnosis.

Aha! I google - mapped 'Via Bosco dei Roveri, San Canzian d'Isonzo' and presumed that the site was somewhere along that 'road'. Now I know to click on the location and... a map appears. How modern!

martinjohnbishop's picture

Yes, I cannot find a precise

Yes, I cannot find a precise technical specification of how Google Maps assigns these names. The iSpot team must know. Places far from roads (e.g. in the mountains) seem to be named by reference to a road. To see the habitat it is necessary to use the satellite image and zoom in.
In this one the road "Location: 100, Zwischbergenstrasse" is in a neighbouring country!

lavateraguy's picture

My guess is ...

... that they have a database of postal code co-ordinates (which are all tied to buildings) and that they match the entered co-ordinates with the nearest postal code.

This of course doesn't work well for places far from habitation, nor for that matter for parks, where you'd want to use the name of the park, rather than an adjacent street.

lavateraguy's picture

And ...

... selecting the summit of Ben Macdui gets a location of 18 Coylum Rd., Aviemore (which is a cul-de-sac on the east side of Coylumbridge).

I would have expected something a little nearer, such as one of the houses in Glenmore, if not the Ptarmigan restaurant, or the ski facilities at White Lady Shieling.

martinjohnbishop's picture

I am not sure in which Forum

I am not sure in which Forum to ask the question but there must be a defined algorithm for this apparently crazy behaviour. I guess Martin Harvey knows the answer, shall we ask? Martin.

lavateraguy's picture

Site Feedback ...

... Suggesting improvements

would seem a sensible forum.

However, what we want is to divide the country up into polygons and have ispot recognise which polygon a point falls within.

There's two potential problems - firstly getting their hands on a dataset, and secondly searching it fast enough.

A possibility is to get ones hands on a set of polygons for biodiversity sites (e.g. from Natural England's Nature on the Map) and check these prior to hitting the postcode database. iSpot could also let the users edit in polygons (vandalism can be a problem with crowdsourcing, but I haven't seen any of that here).