’n Springbok. FOTO PEXELS.COM
’n Springbok. FOTO PEXELS.COM

Groeiende hitte en plaaslike wildsbokke

Elvira Hattingh
Navorsers verbonde aan die Universiteit van Potsdam, Duitsland, het onlangs drie wildsbokspesies in Namibië bestudeer en bevind dat die bokke minder aktief is of die tydsberekening van aktiwiteite verander om hittestres te hanteer.

Die studie het gehandel oor hoe stygende temperature – wat deur klimaatsverandering veroorsaak word – wilde diere bedreig. Volgens die navorsing word kleiner en meer aktiewe wildsboksoorte die ergste geraak.

Tydens die studie is elande, koedoes en springbokke bestudeer.

Die navorsers meen in die toekoms kan hittestres beduidende veranderinge veroorsaak as dit kom by watter boksoorte in die habitat gevind sal word. Volgens statistiek loop Suider-Afrika in die besonder erg deur onder stygende temperature.

Wilde diere word die ergste geraak wat voorkom in delikate ekostelsels wat gereeld deur droogtes geteister word. Dit beperk die wildsbokke se vermoë om hoër temperature te kan verdra.

Wetenskaplikes het die gedrag van drie verskillende spesies van wildsbokke met oorvleuelende verspreidingsgebiede in Namibië bestudeer om te probeer verstaan hoe diere van verskillende groottes en gedrag by die hitte aanpas.

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Namibian Sun 2024-09-20

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LaLiga: Leganés 0 vs 2 Athletic Club | Real Betis 2 vs 1 Getafe | Mallorca 1 vs 0 Real Sociedad Katima Mulilo: 25° | 39° Rundu: 20° | 39° Eenhana: 17° | 36° Oshakati: 15° | 34° Ruacana: 16° | 35° Tsumeb: 19° | 34° Otjiwarongo: 13° | 32° Omaruru: 14° | 32° Windhoek: 11° | 28° Gobabis: 9° | 30° Henties Bay: 11° | 18° Wind speed: 22km/h, Wind direction: W, Low tide: 06:23, High tide: 12:53, Low Tide: 19:02, High tide: 01:16 Swakopmund: 12° | 14° Wind speed: 22km/h, Wind direction: NW, Low tide: 06:21, High tide: 12:51, Low Tide: 19:00, High tide: 01:14 Walvis Bay: 11° | 17° Wind speed: 23km/h, Wind direction: N, Low tide: 06:21, High tide: 12:50, Low Tide: 19:00, High tide: 01:13 Rehoboth: 7° | 29° Mariental: 7° | 26° Keetmanshoop: 6° | 24° Aranos: 6° | 27° Lüderitz: 14° | 27° Ariamsvlei: 6° | 23° Oranjemund: 15° | 30° Luanda: 22° | 24° Gaborone: 11° | 17° Lubumbashi: 18° | 36° Mbabane: 8° | 9° Maseru: 3° | 13° Antananarivo: 11° | 28° Lilongwe: 21° | 31° Maputo: 14° | 15° Windhoek: 11° | 28° Cape Town: 10° | 21° Durban: 13° | 14° Johannesburg: 7° | 9° Dar es Salaam: 23° | 29° Lusaka: 21° | 34° Harare: 17° | 30° Currency: GBP to NAD 23.28 | EUR to NAD 19.58 | CNY to NAD 2.49 | USD to NAD 17.56 | DZD to NAD 0.13 | AOA to NAD 0.02 | BWP to NAD 1.29 | EGP to NAD 0.35 | KES to NAD 0.14 | NGN to NAD 0.01 | ZMW to NAD 0.65 | ZWL to NAD 0.04 | BRL to NAD 3.23 | RUB to NAD 0.19 | INR to NAD 0.21 | USD to DZD 132.02 | USD to AOA 926.84 | USD to BWP 13.17 | USD to EGP 48.48 | USD to KES 128.48 | USD to NGN 1593.37 | USD to ZAR 17.56 | USD to ZMW 26.45 | USD to ZWL 321 | Stock Exchange: JSE All Share Index Same 0 | Namibian Stock Exchange (NSX) Overall Index 1838.95 Up +1.41% | Casablanca Stock Exchange (CSE) MASI 14184.33 Up +0.68% | Egyptian Exchange (EGX) 30 Index 30937.69 Up +1.96% | Botswana Stock Exchange (BSE) DCI 9651.25 Same 0 | NSX: MTC 7.75 SAME | Anirep 8.99 SAME | Capricorn Investment group 17.34 SAME | FirstRand Namibia Ltd 49 DOWN 0.50% | Letshego Holdings (Namibia) Ltd 4.1 UP 2.50% | Namibia Asset Management Ltd 0.7 SAME | Namibia Breweries Ltd 31.49 UP 0.03% | Nictus Holdings - Nam 2.22 SAME | Oryx Properties Ltd 12.1 UP 1.70% | Paratus Namibia Holdings 11.99 SAME | SBN Holdings 8.45 SAME | Trustco Group Holdings Ltd 0.48 SAME | B2Gold Corporation 47.34 DOWN 1.50% | Local Index closed 677.62 UP 0.12% | Overall Index closed 1534.6 DOWN 0.05% | Osino Resources Corp 19.47 DOWN 2.41% | Commodities: Gold US$ 2 612.39/OZ UP +0.97% | Copper US$ 4.33/lb UP +0.27% | Zinc US$ 2 924.80/T DOWN -0.41% | Brent Crude Oil US$ 74.45/BBP DOWN -0.0058 | Platinum US$ 986.30/OZ UP +0.37% Sport results: LaLiga: Leganés 0 vs 2 Athletic Club | Real Betis 2 vs 1 Getafe | Mallorca 1 vs 0 Real Sociedad Weather: Katima Mulilo: 25° | 39° Rundu: 20° | 39° Eenhana: 17° | 36° Oshakati: 15° | 34° Ruacana: 16° | 35° Tsumeb: 19° | 34° Otjiwarongo: 13° | 32° Omaruru: 14° | 32° Windhoek: 11° | 28° Gobabis: 9° | 30° Henties Bay: 11° | 18° Wind speed: 22km/h, Wind direction: W, Low tide: 06:23, High tide: 12:53, Low Tide: 19:02, High tide: 01:16 Swakopmund: 12° | 14° Wind speed: 22km/h, Wind direction: NW, Low tide: 06:21, High tide: 12:51, Low Tide: 19:00, High tide: 01:14 Walvis Bay: 11° | 17° Wind speed: 23km/h, Wind direction: N, Low tide: 06:21, High tide: 12:50, Low Tide: 19:00, High tide: 01:13 Rehoboth: 7° | 29° Mariental: 7° | 26° Keetmanshoop: 6° | 24° Aranos: 6° | 27° Lüderitz: 14° | 27° Ariamsvlei: 6° | 23° Oranjemund: 15° | 30° Luanda: 22° | 24° Gaborone: 11° | 17° Lubumbashi: 18° | 36° Mbabane: 8° | 9° Maseru: 3° | 13° Antananarivo: 11° | 28° Lilongwe: 21° | 31° Maputo: 14° | 15° Windhoek: 11° | 28° Cape Town: 10° | 21° Durban: 13° | 14° Johannesburg: 7° | 9° Dar es Salaam: 23° | 29° Lusaka: 21° | 34° Harare: 17° | 30° Economic Indicators: Currency: GBP to NAD 23.28 | EUR to NAD 19.58 | CNY to NAD 2.49 | USD to NAD 17.56 | DZD to NAD 0.13 | AOA to NAD 0.02 | BWP to NAD 1.29 | EGP to NAD 0.35 | KES to NAD 0.14 | NGN to NAD 0.01 | ZMW to NAD 0.65 | ZWL to NAD 0.04 | BRL to NAD 3.23 | RUB to NAD 0.19 | INR to NAD 0.21 | USD to DZD 132.02 | USD to AOA 926.84 | USD to BWP 13.17 | USD to EGP 48.48 | USD to KES 128.48 | USD to NGN 1593.37 | USD to ZAR 17.56 | USD to ZMW 26.45 | USD to ZWL 321 | Stock Exchange: JSE All Share Index Same 0 | Namibian Stock Exchange (NSX) Overall Index 1838.95 Up +1.41% | Casablanca Stock Exchange (CSE) MASI 14184.33 Up +0.68% | Egyptian Exchange (EGX) 30 Index 30937.69 Up +1.96% | Botswana Stock Exchange (BSE) DCI 9651.25 Same 0 | NSX: MTC 7.75 SAME | Anirep 8.99 SAME | Capricorn Investment group 17.34 SAME | FirstRand Namibia Ltd 49 DOWN 0.50% | Letshego Holdings (Namibia) Ltd 4.1 UP 2.50% | Namibia Asset Management Ltd 0.7 SAME | Namibia Breweries Ltd 31.49 UP 0.03% | Nictus Holdings - Nam 2.22 SAME | Oryx Properties Ltd 12.1 UP 1.70% | Paratus Namibia Holdings 11.99 SAME | SBN Holdings 8.45 SAME | Trustco Group Holdings Ltd 0.48 SAME | B2Gold Corporation 47.34 DOWN 1.50% | Local Index closed 677.62 UP 0.12% | Overall Index closed 1534.6 DOWN 0.05% | Osino Resources Corp 19.47 DOWN 2.41% | Commodities: Gold US$ 2 612.39/OZ UP +0.97% | Copper US$ 4.33/lb UP +0.27% | Zinc US$ 2 924.80/T DOWN -0.41% | Brent Crude Oil US$ 74.45/BBP DOWN -0.0058 | Platinum US$ 986.30/OZ UP +0.37%