Atlas 2020 Recording: Priority Tetrads

We now have four tetrads left at Top priority, two of (SU40M and SU73R) which can be discounted for reasons of access or past history, and five at High priority. After these, the Medium-priority tetrads are your next port of call. These are tetrads where we have not achieved 80% re-recording since 2000. Given the dynamism in much of the county, and the fact that casuals are well-recorded here, we feel this is a reasonable threshold for saying that a tetrad is well covered in many cases. If you have limited time, it's worth looking next for 'easy wins' - tetrads which are close to the 80% re-recording threshold) - although you may decide that in some of these there is little chance of pushing the totals up much farther.

It's not realistic to get 80% re-recording in every tetrad, although some of you are evidently trying hard! The BSBI has set the bar pretty low - preferring at least 3 well-recorded tetrads in each hectad to a lot of partially recorded ground - but this is to take into account the huge areas of the Highlands and Ireland that are difficult of access and have few feet on the ground. I believe that by 2019 in Hampshire we can achieve 40% of tetrads in most hectads with good coverage. We're already there in several areas; at the minimum we should get the equivalent of 5 in a full hectad (i.e. 20%), and this needs to be revisited in 2018-2019 in the light of the large number of historic records, mostly of common species, recently added from the 1996 Flora.

We now have four tetrads left at Top priority, two of which (SU40M and SU73R) can be discounted for reasons of access or past history, and five at High priority. After these, the Medium-priority tetrads are your next port of call.

These pages now show final priorities for 2018, based on records entered up to 21st March. Looking at the latest map you may feel shock and gloom, as many tetrads previously reduced to Low priority are showing up again as Medium or High. This is because we've added many pre-1995 records of mostly common species from the maps in the 1996 Flora of Hampshire. As usual, recorders should go for Top or High tetrads first and then tackle Medium that they judge are most likely to be productive.

Click on any hectad (10km square) to get a list of priority tetrads (2km squares) with visit plans, and to download checklists and recording sheets for a tetrad. You can record your own survey activity and plans using the 'Visit plans' tab on this page. Even if you don't record planned trips in advance, please log completed visits retrospectively. This will help us all not to duplicate effort. If you haven't yet received notice of your personal logon details, use the facility on the login form to request them via email.

Click on a 10km square for details

    Priorities
  • Top
  • High
  • Medium
SZ09 SU00 SU01 SU02 SU12 SU11 SU10 SZ19 SU24 SU23 SU22 SU21 SU20 SZ29 SU36 SU35 SU34 SU33 SU32 SU31 SU30 SZ39 SU46 SU45 SU44 SU43 SU42 SU41 SU40 SZ49 SU56 SU55 SU54 SU53 SU52 SU51 SU50 SZ59 SU66 SU65 SU64 SU63 SU62 SU61 SU60 SZ69 SU76 SU75 SU74 SU73 SU72 SU71 SU70 SZ79 SU86 SU85 SU84 SU83 SU82

Forthcoming tetrad visits

Wed 25 Apr 2018SU33BMartin Rand
Thu 26 Apr 2018SU42HMartin Rand
Mon 30 Apr 2018SU42KMartin Rand
Wed 02 May 2018SU42RMartin Rand
Thu 03 May 2018SU61AMartin Rand
Tue 08 May 2018SU31KMartin Rand
Thu 10 May 2018SU42SMartin Rand
Mon 14 May 2018SU31UMartin Rand
Tue 15 May 2018SU73XTony Mundell
Wed 16 May 2018SU31TMartin Rand
Thu 17 May 2018SU53ITony Mundell
Fri 18 May 2018SU30CAndy Cross
Mon 21 May 2018SU42AMartin Rand
Mon 21 May 2018SU73BTony Mundell
Wed 23 May 2018SU33KMartin Rand
Thu 24 May 2018SU61JMartin Rand

Atlas 2020 Recording: Visits

Click on a 10km square for details

    Latest visits
  • Proposed
  • Completed
  • Cancelled
  • Prev years
SZ09 SU00 SU01 SU02 SU12 SU11 SU10 SZ19 SU24 SU23 SU22 SU21 SU20 SZ29 SU36 SU35 SU34 SU33 SU32 SU31 SU30 SZ39 SU46 SU45 SU44 SU43 SU42 SU41 SU40 SZ49 SU56 SU55 SU54 SU53 SU52 SU51 SU50 SZ59 SU66 SU65 SU64 SU63 SU62 SU61 SU60 SZ69 SU76 SU75 SU74 SU73 SU72 SU71 SU70 SZ79 SU86 SU85 SU84 SU83 SU82

Forthcoming tetrad visits

Wed 25 Apr 2018SU33BMartin Rand
Thu 26 Apr 2018SU42HMartin Rand
Mon 30 Apr 2018SU42KMartin Rand
Wed 02 May 2018SU42RMartin Rand
Thu 03 May 2018SU61AMartin Rand
Tue 08 May 2018SU31KMartin Rand
Thu 10 May 2018SU42SMartin Rand
Mon 14 May 2018SU31UMartin Rand
Tue 15 May 2018SU73XTony Mundell
Wed 16 May 2018SU31TMartin Rand
Thu 17 May 2018SU53ITony Mundell
Fri 18 May 2018SU30CAndy Cross
Mon 21 May 2018SU42AMartin Rand
Mon 21 May 2018SU73BTony Mundell
Wed 23 May 2018SU33KMartin Rand
Thu 24 May 2018SU61JMartin Rand

Atlas 2020 Recording: Species maps (under construction)

Click on a 10km square for details

    Species map
  • 2000-
  • Pre-2000

Species occurrence

(Unspecified)

Priority: (Undefined)
Recent tetrads: 0 / 0: 0%
Recent hectads: 0 / 0: 0%

You can enter all or part of either a scientific name or an English name to look up a species. The case of the text doesn't matter. You will need to type at least four alphabetic characters before the lookup will swing into action. Lookups will only find taxa for which there are records in South or North Hampshire (Vice-counties 11 and 12), so if it doesn't come up in the lookup list even after you have narrowed the search down to one or a few options, it isn't recorded here.

When the lookup list would be too long to display all options at once on the screen sensibly, you can type more characters to narrow the choice; or, with your cursor in the editing box, you can use the 'Up' and 'Down' keys on your keyboard to show all available optioons, including those not in the drop-down menu.

The Get details button will not be available to you until you have positively selected a choice from the lookup list, even if there is only one item in the list.

Select a species


   

Atlas 2020 Recording: Analytical maps

Click on a 10km square for details

    Easy Wins
  • Top picks
SZ09 SU00 SU01 SU02 SU12 SU11 SU10 SZ19 SU24 SU23 SU22 SU21 SU20 SZ29 SU36 SU35 SU34 SU33 SU32 SU31 SU30 SZ39 SU46 SU45 SU44 SU43 SU42 SU41 SU40 SZ49 SU56 SU55 SU54 SU53 SU52 SU51 SU50 SZ59 SU66 SU65 SU64 SU63 SU62 SU61 SU60 SZ69 SU76 SU75 SU74 SU73 SU72 SU71 SU70 SZ79 SU86 SU85 SU84 SU83 SU82

Easy wins

Tetrads close to 80% of species recorded since 2000


Click on a 10km square for details

    Low species count
  • under 100
  • under 180
SZ09 SU00 SU01 SU02 SU12 SU11 SU10 SZ19 SU24 SU23 SU22 SU21 SU20 SZ29 SU36 SU35 SU34 SU33 SU32 SU31 SU30 SZ39 SU46 SU45 SU44 SU43 SU42 SU41 SU40 SZ49 SU56 SU55 SU54 SU53 SU52 SU51 SU50 SZ59 SU66 SU65 SU64 SU63 SU62 SU61 SU60 SZ69 SU76 SU75 SU74 SU73 SU72 SU71 SU70 SZ79 SU86 SU85 SU84 SU83 SU82

Low species counts

Tetrads with fewer than 180 taxa recorded


Click on a 10km square for details

    High species count
  • over 500
  • over 600
SZ09 SU00 SU01 SU02 SU12 SU11 SU10 SZ19 SU24 SU23 SU22 SU21 SU20 SZ29 SU36 SU35 SU34 SU33 SU32 SU31 SU30 SZ39 SU46 SU45 SU44 SU43 SU42 SU41 SU40 SZ49 SU56 SU55 SU54 SU53 SU52 SU51 SU50 SZ59 SU66 SU65 SU64 SU63 SU62 SU61 SU60 SZ69 SU76 SU75 SU74 SU73 SU72 SU71 SU70 SZ79 SU86 SU85 SU84 SU83 SU82

High species counts

Tetrads with more than 500 taxa recorded