Taking part in PHOWN - help menu
- What you need and registration
- Counting weaver colonies
- Resizing photos
- Obtaining correct coordinates
- Uploading photos and data
- Upload problems
- Viewing accepted records
- Corrections and coordinates
- Repeat counts
- Video PHOWN
Counting weaver colonies: repeatsBy counting the same colony again, we can obtain data on changes in colony sizes. These changes can be monitored in different years as well as within one season.
Save your colony to the gazetteerIf you are able to repeat colony counts, it helps to save your colony in the Gazetteer on the Upload form. This is done while you upload a record from your chosen colony.
Fill in page 1 of the Upload form as usual (see here).
Fill in a name for the Gazetteer - this can be identical to your locality name, but can be different - it needs to be a name you associate with the particular colony that you want to monitor.
Save the form and fill in Page 2 as usual.
Using the gazetteerThe next time that you count the nests and take a photo, start filling in the Upload form:
fill in the date
choose your Gazetteer name - the list will contain one or more names - only those that you have saved
you can see only your own Gazetteer list and nobody else can see your list
hit Save (under Section 3 Gazetteer locality) and continue Upload page 2 as usual
By using the Gazetteer you do not need to enter Country, Province, Closest Town, Locality, and Coordinates!
If you have recorded a colony before but not saved it under Gazetteer, go to your PHOWN records under Summaries here. Find your colony of interest under the thumbnails and click on it. Then copy the locality details and coordinates to the Upload form (decimal degrees option) and save under Gazetteer as explained above. This means you will use the same coordinates for that colony (if you use a gps or google maps again, you may obtain coordinates that are very slightly different).
View your record!Once your record has been accepted, you can find it (eg find it under your list of records here, or use another search method on the Summary page).
Click on the thumbnail and you will see the full details for that record.
At the bottom of the page you will see all repeats as a table of nest counts by date and also the thumbnails if you want to see the full record of another repeat for that colony.
Repeat intervalsHow often should you record repeat counts of a colony? This is entirely up to you. You should preferably not submit more than one repeat per day. You can submit repeats on a daily, weekly, monthly or random basis. If you submit repeats regularly but skip some becuase you are on holiday, for instance, that does not matter - simply continue when you can.
Examples:See how this all looks by going to a colony with a few repeats or many repeats. Plotting the nest counts by date for PHOWN 70 (and subsequent repeats) gives:
This is a Cape Weaver colony in Rondevlei Nature Reserve, Cape Town. Note how the colony size steadily increased in the beginning of the breeding season (the repeats were started earlier in 2011). By early October the colony size fluctuated and eventually started decreasing.
Your colony size may not change much, but this is still valuable data!