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|All years||Observers: 1331||Cards: 96595||Records: 5101285||Incidentals: 394719||Pentads: 12491 (72.13%)|
|2013||Observers: 603||Cards: 14749||Records: 765969||Incidentals: 63400||Pentads: 4728 (27.30%)|
|SummerMAP||Observers: 58||Cards: 128||Records: 7911||Incidentals: 15545||Pentads: 121 (0.70%)|
|4DY and 3456 in 2013|
Get all 576 pentads in the four degrees of 'Greater Gauteng' to YELLOW in 2013
Get 3456 checklists in total (average of 6 lists per pentad!)
|Pentad with 0 cards||42||7.29%|
|Pentad with 1 or more cards||534||92.71%|
|Pentad with 2 or more cards||296||51.39%|
|Pentad with 3 or more cards||199||34.55%|
|Pentad with 4 or more cards||153||26.56%|
|Total cards submitted in 2013||3139|
|Total percentage submitted in 2013||90.83%|
|Date of survey||Pentad||Compiler|
|2013-11-22||3420_1905||Rayne, Sean Stephen|
|2013-12-07||2550_2815||van Zyl, Debbie|
|2013-11-28||1950_1355||Niddrie, Richard Paul|
|2013-12-02||3245_1805||du Plessis, Linda|
|2013-11-21||3420_2150||Rayne, Sean Stephen|
|2013-11-21||3415_2145||Rayne, Sean Stephen|
|2013-11-21||3415_2150||Rayne, Sean Stephen|
|2013-11-21||3410_2150||Rayne, Sean Stephen|
|2013-11-21||3410_2155||Rayne, Sean Stephen|
|2013-12-20||3400_2210||Rayne, Sean Stephen|
|2013-12-06||2750_2535||De Swardt, Dawie|
|2013-12-06||2815_2530||De Swardt, Dawie|
|2013-12-06||2825_2530||De Swardt, Dawie|
|2013-11-20||3355_2240||Rayne, Sean Stephen|
|2013-11-20||3355_2235||Rayne, Sean Stephen|
|2013-11-20||3400_2240||Rayne, Sean Stephen|
Magnificent effort Team SABAP2. On the ADU's Facebook page it says: "The citizen scientists who participate in the second bird atlas project, SABAP2, are especially encouraged to visit all 576 pentads in this area annually. It is the four one-degree grid cells centred on Gauteng in which about 30% of South Africa's population lives. There is huge pressure for development, and therefore huge pressure on biodiversity.
"Today, the 2013 project stands at the cusp of a lot of milestones. Perhaps all of them will be surpassed this weekend!
"88.9% of pentads have at least one visit. Six more will get us to beyond 90% coverage, and mean that the percentage not yet visited is below 10%.
"49.5% of pentads have two or more checklists. Three checklists from pentads with only one list will mean that more than half the pentads have at least two visits.
"32.8% of pentads have three or more checklists. Getting a third checklists for three pentads which currently have two checklists will mean that more than one third of pentads have three or more checklists.
"24.7% of pentads have four or more checklists, and are GREEN or darker colours on the this map. Only two pentads with three lists need a fourth checklist to get this figure to 25%. That is an astonishing achievement. Four or more checklists for a quarter of this area in 2013 alone."
The digits inside the pentads on this map are the numbers of checklists for the pentad this year so far. Once the number of checklists gets into double figures, this is represented by a *. The map shows the Four Degrees region, plus two rows of pentads around the edges – it would be nice to get lots of these visited too this year, especially along the southern edge!link to this news item
The range-change map for the Dark-capped Bulbul is massively GREEN. 443 quarter degree grid cells (58%) of the range is GREEN, where reporting rates have increased between SABAP1 and SABAP2. This is one of the GREENest species. Most species with increasing reporting rates also show range expansions. This species has a range expansion of only 4%, ie only 4% of the cells are BLUE on this map.
So for the Dark-capped Bulbul, the story seems to be quite simple. There have been increases in abundance (and therefore reporting rate) over much of the range. But the range has stayed much the same. The ranges of the the three Pycnonotus bulbuls (Cape, Red-eyed and Dark-capped) seem to be maintaining the historic boundaries between them, but all three are showing increases in reporting rates, and many of these are massive.
The explanation of the increase in reporting rates is likely to be the general thickening of bush that has taken place through most of the range of the Dark-capped Bulbul. This species occurs wherever there are trees and shrubs that produce fruit. And, clearly, there are a lot more of these than there were two decades ago!
The photo above is from the BirdPix Virtual Museum, and it was submitted by David Kennedy. It is BirdPix record 2597, and here it is in its Virtual Museum context vmus.adu.org.za/?vm=-2597.
link to this news item
One of the Animal Demography Unit’s core values reads like this:
• Conservation: Informing, influencing and motivating biodiversity policy development based on sound quantitative and scientific evidence through our commitment to long-term monitoring and analysis.
Ultimately, the point of all the data collection which is the Animal Demography Unit's bread and butter is to contribute to the development of biodiversity policy. And it is our citizen scientists who collect this information. The first half of November has seen targets mostly being met, and where we have come short of target, the deficits are redeemable in the second half of the month.
For the Virtual Museums at vmus.adu.org.za a good month means that more than 3000 records collected. The figure for October was 3229. In the first 15 days of November, the total was 1490, almost exactly on target. A new Virtual Museum initiative, by one of our partners, Ian Engelbrecht, a PhD student at the University of Pretoria, was the launch of the baboon spider atlas. Read up about this here. It is to celebrate this event that the photo illustrating this news item is a baboon spider! It is the Horned Baboon Spider Ceratogyrus darlingi.
For SABAP2, we aim to average 50 checklists submitted per day. That is 750 checklists for the first 15 days in November. We achieved 95% of this, 709 checklists. The database grew by 40136 full protocol records and 2873 incidental records. SABAP2 coverage for 2013 alone grew to 26.2%. With a healthy dollop of holiday atlasing, we are on track to reach our SABAP2013 target of 30% by the end of the year.
The four degree cells centred on Gauteng are home to about 30% of South Africa’s population, and we give this area, which is subject to the pressures of development, special attention every year. This year we are aiming at at least one checklist in each of the 576 pentads in the region. During the first half of November, coverage increased from 494 (80.4%) pentads to 510 (85.1%). That is impressive. We are also aiming for a total of 3456 checklists for this area in 2013. This increased by 165 to 2942 checklists. That is an average of 11.0 checklists per day. There’s another 514 checklists to reach the target, and 46 days to collect them, and that is 11.2 checklists per day.
One of the predictions of climate change is that migration, especially long-distance migration, will be disrupted. The SpringMAP project is documenting the timing of arrival on migration this spring. With two weeks to go, we have collected 3892 checklists this spring alone. Please make a special effort to atlas your regular pentads one final time, to confirm that the bulk of the migrants have arrived!
Thank you to all the Citizen Scientists who contribute to all of our projects. Together we are making a difference to the conservation of biodiversity in our region.link to this news item
more news...SABAP1 vs SABAP2: the Rock Dove aka Feral Pigeon ...