Temporal Dimensions of Data Quality in Bird Atlases: the Case of the Second Southern African Bird Atlas Project

Karis A. Daniel; Leslie G. Underhill

doi:10.5334/cstp.578

Figures & Tables

Table 1

Note no official coordination or systematic data collection strategies were used in the Northern Swartland, Garden Route, or Western Overberg regions.

ATLASING REGIONS AND FIELDWORK STRATEGIES.
REGION	PENTADS	FIELDWORK STRATEGY
Hessequa	75	Systematic atlasing, community and scientific leadership
Greater Gauteng (GG1–8)	72	Sporadic atlasing challenges, scientific leadership
Northern Swartland	77	No coordinated atlasing
Garden Route	99	No coordinated atlasing
Western Overberg	79	No coordinated atlasing

Atlasing effort (number of checklists) and regional coverage (percentage of pentads atlased) in Hessequa and three Western Cape regions between 2009 and 2021. Darker colour indicates more complete coverage.

Table 2

Note units are days prior to 31 December of the year in the row (see text). Large values represent poor temporal quality.

ANNUAL TEMPORAL QUALITY FOR SABAP2 DATA FROM 2009–2021.
YEAR	HESSEQUA	WESTERN OVERBERG	GARDEN ROUTE	NORTHERN SWARTLAND	GG1	GG2	GG3	GG4	GG5	GG6	GG7	GG8
2009	271	113	69	96	150	138	207	103	188	196	82	198
2010	375	336	96	145	124	83	120	299	132	84	160	195
2011	471	244	222	180	247	340	267	328	91	232	172	135
2012	730	253	343	310	422	376	370	302	270	301	228	317
2013	386	451	506	458	464	304	376	276	386	438	364	390
2014	359	755	557	666	609	334	388	227	324	334	275	325
2015	146	591	507	743	443	372	358	175	404	404	249	394
2016	127	493	586	545	368	482	484	214	613	400	346	586
2017	139	470	645	674	646	592	652	246	623	500	380	623
2018	232	679	1003	772	928	652	753	297	692	674	365	688
2019	221	735	1208	822	774	585	666	359	441	684	349	751
2020	244	847	1264	455	827	502	680	334	663	729	500	760
2021	228	967	368	697	852	476	741	442	824	765	557	950

[i] Notes: SABAP2: Second Southern African Bird Atlas Project.

Temporal proximity for Hessequa and three Western Cape regions between 2009 and 2021 (see also Table 2).

Temporal proximity for Hessequa and eight Greater Gauteng regions between 2009 and 2021 (see also Table 2).

Atlasing effort (number of checklists) and regional coverage (percentage of pentads atlased) in Hessequa and three Western Cape regions during austral spring, between 2009 and 2021. Darker colour indicates more complete coverage.

Atlasing effort (number of checklists) and regional coverage (percentage of pentads atlased) in Hessequa and eight Greater Gauteng regions during austral spring, between 2009 and 2021. Darker colour indicates more complete coverage.

Table 3

Note units are days prior to 31 December of the year in the row (see text). Large values represent poor temporal quality.

SPRING TEMPORAL QUALITY FOR SABAP2 DATA FROM 2009–2021.
YEAR	HESSEQUA	WESTERN OVERBERG	GARDEN ROUTE	NORTHERN SWARTLAND	GG1	GG2	GG3	GG4	GG5	GG6	GG7	GG8
2009	111	73	61	79	85	94	89	82	82	89	58	110
2010	468	409	68	397	75	85	75	405	69	68	258	114
2011	467	182	411	260	399	408	427	763	91	56	400	84
2012	833	421	444	428	418	766	766	113	428	412	95	408
2013	843	455	783	465	465	413	479	408	432	480	415	764
2014	1184	802	1133	824	774	463	428	115	480	436	407	816
2015	106	1162	1168	1166	810	775	452	96	625	446	436	1146
2016	400	1206	1202	1502	833	816	766	111	769	766	722	1203
2017	233	778	1548	1135	1184	1155	784	401	812	768	836	1501
2018	409	824	1582	1199	1209	1180	841	401	840	806	820	1528
2019	407	1150	1864	1528	1544	1506	1129	451	814	781	477	1530
2020	406	1186	1537	1130	829	1132	814	444	798	820	770	1515
2021	403	1536	817	848	1153	776	1158	473	1140	825	818	1216

[i] Notes: SABAP2: Second Southern African Bird Atlas Project.

Temporal proximity for Hessequa and eight Greater Gauteng regions during austral spring, between 2009 and 2021 (see also Table 3).

Atlasing effort (number of checklists) and regional coverage (percentage of pentads atlased) in Hessequa and eight Greater Gauteng regions between 2009 and 2021. Darker colour indicates more complete coverage.

Temporal Dimensions of Data Quality in Bird Atlases: the Case of the Second Southern African Bird Atlas Project

Figures & Tables

Table 1

Figure 1

Table 2

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Table 3

Figure 7

Figure 8

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