• Preserving our Biodiversity

Conservation of Biodiversity

Conservation of biodiversity is protection, upliftment and scientific management of biodiversity so as to maintain it at its threshold level and derive sustainable benefits for the present and future generation….

By conserving biodiversity, we not only ensure that our surroundings are richer and more diverse, but also we secure the resources that will continue to provide improvements in the quality of human life.

All started in South Africa when, in 1995, South Africa signed the “United Nations Convention on Biological Diversity”. The development of a biodiversity policy for South Africa was therefore needed for the ratification of the Convention as a law. In 1996 the draft policy (Green Paper) was released as a discussion document for public comment. An extensive consultation with all interested and affected parties was held throughout the country, and more than 3000 organisations were briefed as interested and affected parties. In May 1997, the “White Paper on the Conservation and Sustainable Use of South Africa’s Biological Diversity” was published, amply discussed and gave birth to all our environmental laws.

All laws comply with the Vision, Mission and Principles of the White Paper, which:

… are underpinned and guided by South Africa’s new Constitution which provides within its Bill of Rights that everyone has the right:

a) to an environment that is not harmful to their health or well-being; and

b) to have the environment protected, for the benefit of present and future generations, through reasonable legislative and other measures that:

  • i) prevent pollution and ecological degradation;
  • ii) promote conservation; and
  • iii) secure ecologically sustainable development and use of natural resources while promoting justifiable economic and social development.

The Crocodile River Reserve has been proclaimed as a Protected Area according to the National Environmental Management: Protected Areas Act of 2004 which provides for the protection and conservation of ecologically viable areas representative of South Africa’s biological diversity and its natural landscapes, seascapes and the management thereof.

The responsibility of conserving biodiversity has been given to more than a hundred landowners, who voluntarily committed to it. Whilst conservation of biodiversity is a responsibility of each single landowner who signed an agreement with the Government, the management of such responsibility and the implementation of collective efforts of conserving and protecting biodiversity has been transferred to the Grassland Stewardship Alliance by the landowners themselves. It is an Alliance which is as strong as it is open, informative, inclusive, socially conscious, guided, supported and sustainable. It is an Alliance which has accepted the Management responsibility as the Authority in conserving the biodiversity and cultural heritage of the Crocodile River Reserve and its buffer zone.

The conservation effectiveness of the Grassland Stewardship Alliance will be measured by its mentor and biodiversity controller, the Gauteng Department of Agriculture and Rural Development, Biodiversity Stewardship.

Management’s effectiveness will be measured by its ability and success in implementing conservation measures.

The authority’s effectiveness will be measured by the responsible decisions the Grassland Stewardship Alliance will take when our biodiversity is endangered, and the degradation of any areas and irresponsible behaviour and illegal activities happen.

The Protected Areas [Environmental] Management Plan (PAMP), the collection of strategies and actions designed by the CRR landowners for maintaining and expanding the committed conservation of properties, will be published on this website.

It will include sections like:

  • Invasive and alien vegetation management
  • Fire management for conservation and protection (designed with the CRR Fire Protection Association)
  • Our rivers pollution management
  • Wildlife management
  • Environmental Education
  • Socio economic development
  • Environmental crime prevention
  • Alliance expansion and sustainability

And many other topics that the landowners have considered critical for honouring the contract they signed and brought the Crocodile River Reserve to be included in the National Protected Areas Register.

Want to know more about the Reserve?

Browse our articles on the flora and fauna found in the Reserve below

Living with Baboons & Monkeys in the Crocodile River Reserve

One of the great privileges of living in the Crocodile River Reserve is sharing your space with free-roaming wildlife. But when baboons and monkeys start helping themselves to your kitchen, what can you actually do about it?
September 2, 2026/by admin

Birds of the Crocodile River Reserve Talk

Justin guided us through a carefully curated selection from the CRR's impressive bird list — and while covering all 255 recorded species in one morning was never going to be possible, he chose beautifully. The majestic Brown Snake Eagle, the charismatic Arrow-marked Babbler, the humble Dove, the mystical Grass Owl and the very special Orange River Francolin were among the stars of the show. The presentation was, however, occasionally — and hilariously — interrupted by a group of Hadeda Ibis who clearly felt they deserved a mention too.
August 31, 2026/by admin

The Wild Crew – Seeds – March 2026

The weekend of the 14th and 15th was very busy for the School Programme team, with a Wild Crew outing on the Eastern side and another one on the Western side on the Sunday. The theme was seeds - those tiny little things that seem so insignificant but feed the world!
April 1, 2026/by Susan Long

The Wild Crew – Wetlands & Water – February 2026

Testing the water and finding healthy results reinforced the importance of wetlands as natural filters in our water systems, and highlighted what can be achieved when a natural environment is properly cared for.

With so many hands-on activities, we did not even have time to examine our finds under the microscope, but there was no doubt that the children appreciated the vast biodiversity we discovered in such a small section of the wetlands. We made sure they understood the functions of wetlands and the important role they play in the lives of so many species, including our own.
February 17, 2026/by Susan Long

The Wild Crew – Bugs – Nov 2025

Before we’d even reached the veld, everyone had already caught their first bug, causing great excitement! Once in the long grass, each child had a turn using the sweep nets, and on our return to our ‘base’ at The Sheds, we identified the insects, observed them under a microscope, and then, of course, released them back into their habitat.
November 20, 2025/by Susan Long

The Wild Crew – Birds – Oct 2025

We started by exploring how birds are adapted to what they eat and where they live. From sharp beaks to clever claws, every feathered friend has its own design for survival. Our walk took us through five different habitats, each alive with birdsong and movement.
October 17, 2025/by Susan Long

The Wild Crew – Trees & Grass Plant Ecology – September 2025

On our recent Wild Crew outing, we took full advantage of the warm weather and spent almost the entire day outdoors on our nature walk. It took some time to reach our planned destination - a ridge on the Egoli Granite Grasslands - because there was simply so much to see and explain.
September 24, 2025/by Susan Long

The Wild Crew – Seeds – September 2025

Looking back on what the CRR School Programme has achieved so far in 2025, and seeing the little veld flowers popping up in the Egoli Granite Grasslands even before the first rains, I am reminded just how important our lessons on seeds have been. This topic may not seem quite as exciting as water, history, or geology, but without seeds—where would we be?
September 4, 2025/by Susan Long

The Wild Crew – Rocks – August 2025

Clearly, rocks do rock, if the number of children and parents who turned up for this event was anything to go by. Everyone enjoyed the walk to Koppie Alleen, and the climb to the top was a real adventure! Understanding the vital role rocks have played in the forming of the planet, and their contribution to the environment in the past and now, gave everyone pause for thought.
August 15, 2025/by Susan Long

The Wild Crew – Rivers

Rivers are such a vital resource that inspiring the next generation to care for them — and teaching them how — is a no-brainer. So on Saturday, we headed off to a small stream in the CRR with our Wild Crew. And on this outing, they really lived up to their name.

True to nature, the children couldn’t wait to get their feet wet despite the cold. They were told to remove their shoes and socks, roll up their pants, and were handed water testing strips, petri dishes, and little bottles with pipettes.
June 20, 2025/by Susan Long

The Wild Crew – Seeds

Although the focus for this outing was seeds—particularly grasses—the rich biodiversity of the grasslands meant we discovered all sorts of interesting things along the way. We came across beautiful flowers, unusual plants, butterflies, grasshoppers, and other fascinating creepy crawlies that demanded our attention.
April 20, 2025/by Susan Long

The Wild Crew’s Wetlands Expedition: Here’s What Happened! – 8 March 2025

The Wild Crew met on the 8th of March, and what an exciting outing this was! A good walk, mud, water, tadpoles, and fun experiments—everything needed for a truly great event. As we reached the top of the hill on our walk, we paused to take in the wetlands below and learnt how the landscape influences where wetlands are found.

Upon reaching the wetlands, Suretha and Sulize discussed the different types of wetlands, after which we took soil samples using a tool called an auger.
March 17, 2025/by Susan Long

School Holiday Programme 2024 Photo Gallery

In total we had 52 attending the CRR 2024 School Holiday Programme over the four days in July 2024.

We hope that all the children who attended have happy memories of the time they spent with us in the CRR and have taken away with them a deeper understanding of the natural world, and the importance of caring for it.
July 20, 2024/by admin
Ball Python has a snuggle

A Talk By the Jhb Wildlife Vet at the Reserve

Over 40 people attended the Urban Wildlife talk by the Johannesburg Wildlife Veterinary Hospital and Rehabilitation Facility. This event was held on Sunday the 18th April 2021. Everyone involved deemed it an absolute hit. It was wonderful to see the number of children in the audience who participated with great enthusiasm!
April 20, 2021/by admin
Tree Walk in the Crocodile River Reserve

A Successful Tree Walk in March 2021

The Tree Walk held in the Crocodile River Reserve offered an insightful and easy to understand introduction to the day, starting with the structure of leaves and how to use this to identify a tree. What followed was a walk through the beautiful veld of the Reserve during which we identified a variety of trees - such as the fascinating underground tree Lannae Aedulis, the Diospyros Lycioides (Blue Bush), the common but beautiful Acacia Karroo (Sweet Thorn) and the Protea Caffra Trees but to name a few.
March 24, 2021/by admin
Large Sourplum

Large Sourplum

The ripe fruits of the Ximenia Caffra or Sourplum are eaten by birds such as barbets, bulbuls and starlings and mammals such as giraffe, impala, kudu, grey duiker, steenbok, bushbuck and eland enjoy eating it's leaves. The larvae of a number of butterflies feed on the leaves, some examples being the Bush Scarlet butterfly, Natal and Silvery bar, Bowker's and Saffron sapphire and the Brown playboy.
February 24, 2021/by admin
Lannea Edulis

Lannea Edulis

Lannea edulis has shiny green leaves that are hairy when young and leathery when matured, with creamy white flowers from August to October. It bears bright red ovoid berries from October to December that become purplish black when they become ripe, which have a juicy and pleasantly sour flavour and are eaten by mice, birds and humans.
February 23, 2021/by admin
Buffalo Thorn Tree

Buffalo Thorn Tree

The Buffalo Thorn Tree is widely used for magical and medicinal purposes because of the spines or thorns, which are paired; One is hooked, and the other is straight. According to Nguni legend, the thorns of the Ziziphus tell us something about ourselves - that we must look ahead to the future (straight thorns) but we must never forget where we have come from (hooked thorns).
February 23, 2021/by admin

Our first post-lockdown scorpion walk

After months in lock-down, it was a joy to get back outdoors and into nature, as our creepy crawly expert, Jonathan Leeming, shared fascinating facts about why all arachnids should be treated with respect rather than fear.
October 12, 2020/by admin
A Cape Skink in the Crocodile River Reserve by Anthony Stewien

Cape Skink

The Cape skink is live-bearing and the female may take up to a week to birth her litter of offspring - often between 8 and 18 per brood. Each baby is born in a thin, membranous bag or 'shell' that it breaks out of within seconds. Newborns measure measure 5 to 7 cm.
April 7, 2020/by admin
Blesbuck

Blesbuck

The blesbok or blesbuck has a distinctive white face and forehead which inspired the name, because bles is the Afrikaans word for a blaze such as one might see on the forehead of a horse.
March 15, 2020/by admin
Blesbuck

Black-Backed Jackal

The Black-Backed Jackal is a wonderfully resourceful scavenger and cleans up all the offal and remains of dead animals when not dining on scrub hares, mongoose, mice, rats, lizards and snakes.
March 15, 2020/by admin
Brown House Snake

Brown House Snake

The Brown House Snake, is one of the most common and most useful snakes in South Africa. It is attracted to human dwellings where it feeds on rats, mice and lizards. They are not venomous and are completely harmless to humans. House snakes are powerful constrictors which rely on their muscle power to constrict prey.
March 15, 2020/by admin
Handling Tortoises

Handling Tortoises

Tortoises store water in a cloacal bursa or sack in the rear of the body for use when required. They will also excrete this water supply as a defence against predators [or humans!] and to dampen dry soil when digging holes in which to lay eggs. If you pick up a tortoise trying to survive in very dry conditions it may excrete its valuable water supply, resulting in the eventual death of the animal.
February 9, 2020/by admin
Bullfrog in Laezonia

Giant Bullfrog

The Giant African Bullfrog is among the largest frogs, with males weighing up to 1.4 kg. It is an insatiable carnivore, eating insects, small rodents, reptiles, small birds, and other amphibians.
February 1, 2020/by admin
Crinum Bulbispernum

Crinum Bulbispernum

The Crinum lily is a large bulbous plant up to 1m high, which produces attractive grey green gracefully arching leaves during the summer months, and is often seen in the Crocodile River Reserve.
January 8, 2020/by admin
Pachycarpus Schinzianus

Pachycarpus Schinzianus

Pachycarpus schinzianus is also known as Creamcup or Bitterwortel, and is a rough-textured, erect perennial which grows between 0.3 and 0.6 m tall. Every spring it resprouts from an underground rootstock.
January 8, 2020/by admin
Chacma Baboon from Wikimedia by Charles J Sharp

Chacma Baboon

Baboons are omnivorous with the bulk of their diet including fruit, seeds, insects, bulbs and any small poor helpless bird or mammal that they can catch.
January 8, 2020/by admin
Black-Collared Barbet by Bernard DUPONT

Black-Collared Barbet

The Black-Collared Barbet or Lybius Torquatus is also known as the Rooikophoutkapper and is one of the most common barbets in Africa, occurring from the DRC to Kenya and southern Africa.
January 7, 2020/by admin
Black-Crowned Tchagra by Albert Froneman

Black-Crowned Tchagra

This bird of the Crocodile River Reserve tends to favour the northern mountain bushveld. The black forehead and crown differentiate this Tchagra from other Tchagras. It is also a larger, bolder bird and is more conspicuous in its behaviour.
January 7, 2020/by admin
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