Animalia > Chordata > Aves > Passeriformes > Muscicapidae > Emarginata > Emarginata tractracEmarginata tractrac (Tractrac Chat)Synonyms: Cercomela tractrac The tractrac chat (Cercomela tractrac) is a small passerine bird of the Old World flycatcher family Muscicapidae. It is a common resident breeder in southernmost Angola, western Namibia and western South Africa. Its habitat is Karoo and desert scrub, hummock dunes and gravel plains. |
Uniqueness Scale: Similiar (0) Unique (100) Uniqueness & Vulnerability Scale: Similiar & Secure (0) Unique & Vulnerable (100) ED Score: 5.00198 EDGE Score: 1.79209 |
| Adult Weight [1] | 24 grams | | Birth Weight [2] | 2.5 grams | | Female Weight [1] | 28 grams | | Male Weight [5] | 21 grams | | Weight Dimorphism [1] | 33.3 % |  | | Diet [3] | Carnivore (Invertebrates) | | Diet - Invertibrates [3] | 100 % | | Forages - Ground [3] | 100 % | | | Clutch Size [4] | 2 |
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| Name |
Countries |
Ecozone |
Biome |
Species |
Report |
Climate |
Land
Use |
|
Nama Karoo |
Namibia, South Africa |
Afrotropic |
Deserts and Xeric Shrublands |
 |
 |
 |
 |
|
Namib desert |
Namibia |
Afrotropic |
Deserts and Xeric Shrublands |
|
|
|
|
|
Namibian savanna woodlands |
Angola, Namibia |
Afrotropic |
Deserts and Xeric Shrublands |
|
|
|
|
|
Succulent Karoo |
Namibia, South Africa |
Afrotropic |
Deserts and Xeric Shrublands |
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|
|
| Name |
Location |
IBA Criteria |
Website |
Climate |
Land Use |
|
Augrabies Falls National Park |
South Africa |
A3 |
 |
|
|
|
Bitterputs Conservation Area (proposed) |
South Africa |
A1, A2, A3 |
|
|
|
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Brandberg mountain |
Namibia |
A2, A3 |
|
|
|
|
Cedarberg: Koue Bokkeveld complex |
South Africa |
A1, A2, A3 |
|
|
|
|
Haramoep and Black Mountain Mine Nature Reserve |
South Africa |
A1, A2, A3 |
|
|
|
|
Iona National Park |
Angola |
A1, A2, A3 |
|
|
|
|
Karoo National Park |
South Africa |
A1, A3, A4ii |
|
|
|
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Mattheus-Gat Conservation Area (proposed) |
South Africa |
A1, A2, A3 |
|
|
|
|
Namib-Naukluft Park |
Namibia |
A1, A2, A3, A4i |
|
|
|
|
Olifants river estuary |
South Africa |
A3, A4i |
|
|
|
|
Orange river mouth wetlands |
South Africa |
A1, A3, A4i, A4iii |
|
|
|
|
Platberg-Karoo Conservancy |
South Africa |
A1, A3, A4i, A4ii |
|
|
|
|
Sperrgebiet |
Namibia |
A1, A2, A3, A4i |
|
|
|
|
| Name |
Location |
Endemic |
Species |
Website |
|
Succulent Karoo |
Namibia, South Africa |
No |
|
|
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 Attributes / relations provided by ♦ 1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109 ♦ 2Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605 ♦ 3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027 ♦ 4Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303 ♦ 5Dean, WRJ 2000. The Birds of Angola: An Annotated Checklist. BOU Checklist No. 18. Tring, UK: British Ornithologists' Union Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database |
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0
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