ALIEN ORNAMENTAL PLANTS HAVE BEEN MANAGED IN KRUGER FOR TWO DECADES. A SURVEY IN 2020 AIMED TO DETERMINE WHETHER THE PROGRAMME WAS ACHIEVING ITS GOALS, WITH MIXED RESULTS. WHILE SOME MANAGEMENT INTERVENTIONS HAVE BEEN SUCCESSFUL, OTHER SITUATIONS HAVE WORSENED Globally, the introduction of alien ornamental (“garden”) plants is known to be an important pathway of…
THE IMPACT OF INCREASING NUMBERS OF PIED CROWS ON BIODIVERSITY AND WHAT ROLE THEY WILL PLAY IN NEWLY INHABITED ECOSYSTEMS IS UNKNOWN. IT IS CRITICAL FOR THIS KNOWLEDGE GAP TO BE FILLED BEFORE IMPULSIVE ACTIONS ARE TAKEN The indigenous pied crow (Corvus albus) with its bold black-and-white plumage is commonly seen in South Africa. Research…
REDCLAW CRAYFISH IS A HARMFUL INVADER OF FRESHWATER SYSTEMS, AND IT HAS BEEN NEWLY RECORDED IN THE CROCODILE RIVER IN THE KRUGER NATIONAL PARK The Redclaw crayfish is native to Northern Australia and Papua New Guinea but has been introduced around the world for aquaculture and the aquarium trade. Continental Africa has no native freshwater…
THE FIRST FOUR COMMON MYNAS WERE SEEN IN KRUGER IN 2000. SURELY COMMON MYNA WOULD NOT INVADE KRUGER? FAST FORWARD 20 YEARS AND SUDDENLY THERE ARE MORE THAN 60 NEW OBSERVATIONS, TOTALLING MORE THAN 300 BIRDS…. THEY CAN INVADE KRUGER Common mynas (Acridotheres tristis), native to south-east Asia, are a familiar sight in South Africa…
SANPARKS STAFF HAVE CONTRIBUTED TO A NEW BOOK ON HOW CLIMATE CHANGE WILL AFFECT BIOLOGICAL INVASIONS, ALSO OFFERING SOLUTIONS TO HELP NAVIGATE THIS UNCERTAIN FUTURE South Africa is home to an amazing diversity of indigenous species that live on land, in its rivers and oceans. Given our location, at the tip of Africa along major…
TWENTY YEARS OF CLIMATE DATA HAS INCREASED THE UNDERSTANDING OF HOW CHANGING CLIMATES IMPACT ON THE INDIGENOUS FORESTS OF THE SOUTHERN CAPE Poor availability of temperature data resulted in the deployment of temperature loggers in the Southern Afromontane Forests of the Garden Route National Park in the early 2000s. Loggers were placed at Groenkop…
WHILE CLIMATE WARMING AND RESULTING DROUGHTS ARE CAUSING DECLINES IN THE HEATSTRESSED NORTHERN POPULATIONS OF QUIVER TREES, THOSE IN THE HEAT-LIMITED SOUTH BENEFIT Sites like Kokerboomkloof in the Richtersveld attract visitors with the beautiful quiver tree, an icon of our arid parks. Quiver trees play a key ecosystem role, often providing the only bird perches…
SANPARKS HAS PRIORITISED PREPARING FOR AND RESPONDING TO THE IMPACTS OF CLIMATE CHANGE There is increasing recognition that as a society we need to act now to reduce the impacts of climate change. SANParks’ Climate Change Preparedness Strategy, which was approved by the Board in December 2022, outlines a vision in which SANParks is resilient…
A BETTER METHOD TO MONITOR THE CRITICALLY ENDANGERED TABLE MOUNTAIN GHOST FROG WILL LINK TADPOLE ABUNDANCE TO HABITAT REQUIREMENTS The Table Mountain ghost frog (Heleophryne rosei) is elusive. It hides in rock crevices just millimetres wide. If you search the streams of Table Mountain, you are likely to only find tadpoles of this critically endangered…
MOKALA NATIONAL PARK AND ITS RIET RIVER ECOSYSTEM IS VULNERABLE TO UPSTREAM DISTURBANCES AS EVIDENCED BY EFFECTS OF THE COLLAPSED MINE TAILINGS DAM AT JAGERSFONTEIN A primary aim of protected areas is to conserve biodiversity and ecosystems. For linear riverine ecosystems this is extremely challenging, with many freshwater systems under pressure from water abstraction, development…
A COLLABORATION BETWEEN SANPARKS, SANBI AND THE CSIR CULMINATED IN A DETAILED REPORT SUMMARISING THE EXTENT TO WHICH SANPARKS CONTRIBUTE TO THE CONSERVATION OF RIVERS, WETLANDS AND ESTUARIES South Africa’s National Biodiversity Assessment (NBA 2018) highlights the dire and deteriorating state of most aquatic ecosystems – rivers, wetlands and estuaries. We asked to what extent…
IN CONTRAST TO OTHER ESTUARINE SYSTEMS, THE TOUWS ESTUARY FISHERY IS DOMINATED BY MOZAMBIQUE TILAPIA, A FRESHWATER SPECIES Estuaries, often places of great scenic beauty, are highly productive ecosystems and provide a range of goods and services. Unfortunately, this makes them focal points for development and use, with associated deterioration of habitats and processes. Thus,…