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Weaver Wednesday 3 [249] - Range changes [12]: Holub's Golden Weaver

2017-03-22 (772)

Weaver Wednesday 3: range changes in S Africa (species text)

Holub's Golden Weaver Ploceus xanthops

Holub's Golden Weaver, Range-change map between SABAP1 (1987-1991) and SABAP2 (2007-current).
Red, orange and yellow = cells with very large, large, and small relative decreases
Blue, dark green and light green = cells with very large, large and small relative increases.
Cells = quarter-degree grid cells; Only cells with at least 4 checklists in both SABAP1&2 shown. All cells had this species recorded in SABAP1 or in SABAP2 or in both (more about interpretation at Biodiversity Observations 7.62: 1-13).

Range changes in SA

Range change summary
More	4 lists		30 lists
increases	n	%	n	%
Decrease	49	34	34	33
Tiny change	17	12	14	14
Increase	76	53	55	54
Total	142	100	103	100

In South Africa the Holub's Golden Weaver has many more grid cells with increases in reporting rate than cells showing decreases, between SABAP1 (1987-1991) and SABAP2 (2007-).

The points below match the points on the map above.

Areas with very large increases include:
1. Limpopo province.
2. Mpumalanga, centered on Nelspruit (also the core of its range in South Africa).
3. KwaZulu-Natal midlands.

Areas with very large decreases:
On the edges of its range in South Africa, particularly around the areas of high increases in Limpopo (no. 1) and the western edge of the KwaZulu-Natal midlands (no. 3).

Range changes elsewhere

None known.

All news items relating to this species

The headers below refer to Weaver News items featuring this species. Click on a header to see the News item, which includes the full news item. (The number in brackets is the date that the news item appeared on Weaver Watch).

Weaver Wednesday 3 [249] - Range changes [12]: Holub's Golden Weaver (2017-03-22)
Weaver Wednesday [180] - Discovery [63]: Holub's Golden Weaver (2015-11-25)
Weaver Wednesday [33]: Holub's Golden Weaver (2013-01-30)