Category: South Africa

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Badger vaccinating is found to be far more effective than culls

The UK has been culling badgers since 2013, and since then over 230,000, yet a recent study has shown that vaccination is far more successful than culling.

This trial in Cornwall, found that the rate of bTB in the study area fell to zero.

Why is this important? One of the big shames of the British government is the fact that experts have been telling them since the beginning of the cull, that it will not work. This is for a very simple reason. Badgers are required to mingle to breed, and when you cull badgers, while you can largely eliminate them in the centre of your trial area, in the area further out, you merely reduce the numbers.

As a result, young males and females that are looking for a mate are required to roam further in order to find one. As a result, any local concentrations of bTB get spread around, causing the rate of the illness to increase. The study area covered 12 farms, and they vaccinated 265 badgers.

The next step is to fund a study over a far larger area.

It should be noted, that farmers funded the study, and it has been shown that not only are vaccines more effective at eliminating bTB, but also significantly cheaper. Furthermore, they found that more badgers were vaccinated per km than were culled on nearby land – suggesting a far higher reach within the badger population.

Might we finally be at a place, where with bTB outbreaks, we can vaccinate rather than cull the badgers, so as to reduce the spread in cattle (though as I have written before, much of the spread comes from moving cattle around, rather than from the badgers anyway.

In south Africa, the bTB reservoir is found within the wild lion population. Understandably, few people would want these lions to be culled, but the ability to fire vaccine darts at them, might well be feasible in eliminating bTB here as well, where around 54% of lions have been shown to carry the illness. Whether or how fast the vaccine idea will reach South Africa is something that we will have to look out for.

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African penguins are being hunted by caracals

African penguins live in South African and Namibia, with a total population of around 18500 (13,200 in South Africa and the rest in Namibia). In south Africa, there are thought to be 2 colonies, with Boulders beach, near Cape town, has a population of around 3000 penguins.

In wilder places, one would think that penguins would be hunted by land mammals, and certainly these behaviours have been filmed, with me remembering footage of a brown hyena hunting penguins on the Namibian beach.

It has generally thought that penguins were relatively safe on Boulders beach, but it is becoming clear that the caracal, which is a smaller cat than a lion or leopard, are living in the area around boulders beach, and are likely the big predator of the penguins. It is true, that cape leopards live in small numbers in this area, and they have been known to take penguins, but being the apex predator, they do not live long-term in the reserve.

This is not the same with the Caracal. This documentary was done around the area of table mountain, but found throughout the cape.

One might argue that this is just natural behaviour, but the problem is that neither species is being able to live in a normal way. In 2016, 2 caracals were documented to have killed 130 penguins in just 2 months. It would not take much more than this, for the African penguin to disappear from South Africa, and indeed the world.

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Should South Africa burn its rhino horn stockpiles?

Image came from an x tweet. It shows part of the white rhino horn collection that has built up over time

To see the whole tweet click here

The South African government now has a total of 70 tonnes of rhino horn in stockpiles. Why, you might ask, have they continued to collect rhino horn since 1977 when its trade was banned? It would appear that, like elephant ivory, there was a hope that they could be sold, from time to time, to push down the price on the black market for rhino horn. There has also been an attempt to make money from this resource.

The problem with this, is as shown by the sales of elephant ivory, it is not actually reducing the demand, but quite to the contrary, these so called one off sales actually have often been seen to increase demand, which leads to a surge of poaching.

The demand for rhino horn is already absurdly high. Last year 499 rhino were hunted in South Africa, though positively, the Kruger only lost 78 (406 were lost on public lands and national parks).

Given past sales of both ivory and rhino horns have not reduced demand but instead increased it.

If past precedence is to be believed, then what will happen is that there will be a brief reduction in demand and price when the extra quantity is released, but this has usually been followed by a surge of extra poaching.

Rhino horn is currently valued at $60,000 per pound, and as each tonne has 2204 pounds, this rhino (if all sold at this price) would be worth $9.25 billion. That is a very large amount of just short of 1% of the whole countries GDP. However, were this rhino horn be allowed to be sold, then while the price of rhino horn would likely drop (without careful care to sell it over some time), but it would also greatly increase the demand for rhino horn.

This would mean that should there be a great increase in the demand for rhino horn. There are currently 23000 white rhino across south Africa, each of these with between $200,000-400,000 of horn on their head.

How long do we think it would take for the demand for white rhino horn to increase poaching back to the thousands a year. At the end of 2023, there were 1850 down several hundred from the year before. To put this in context, in 2007 17,480 white rhino were living wild in southern Africa (80%-90% of these were in the Kruger). Given South Africa has completely failed to end the white rhino massacre, we cannot trust them to look after the few that still remain.

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African elephant populations in southern Africa have stabilized!

Southern African hosts roughly 227,000 elephants out of 415,000 on the continent (in addition there is around 100,000 forest elephants).

In 2020, the estimate was that 30,000 elephants were being killed each year. While the majority of these were in the west african rainforest, and in east africa (it was estimated that the Selous lost 10s of thousands alone).

It is not even just in recent years, but over the last century, that the elephant population in southern Africa has fallen.

Another bonus, is that scientists are now finding clear proof in study after study, that elephants do better in reserves connected to other reserves, than they do in fortress reserves.

It is of course true, that a single reserve is better than nothing. However, increasingly, countries are recognizing that by building their reserves on the borders of their countries, their neighbours can also have reserves, and between them they can put aside enough land to truly allow elephants to live a more natural life.

From the Limpopo transfrontier park – a transfrontier reserve that includes the Kruger, to the Kalahari Zambezi transfrontier park, the Serengeti mara ecosystem and so many more, this is being shown over and over again.

Careful planning of reserves in west african rainforests, can expand this success at great speed if done carefully.

Rock (or cape) Hyrax

Rock or cape hyrax has 5 recognized subspecies, again, unsurprising given its vast range. Generally having a hide within a natural rock cavity, Rock hyraxes are social animals that live in colonies of up to 50 individuals. They sleep in one group, and start the day, warming up in the sun

They are also listed as least concern

As or when we get contacts to see these creatures, they will appear beneath the news section

Southern Tree Hyrax

Southern Tree Hyrax

Photo credit: Charles J Sharp

Southern Tree Hyrax

Southern tree hyrax It is found in temperate forests, subtropical or tropical dry forests, subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, moist savanna, and rocky areas.

It may be found at elevations up to 4,500m across a wide range of countries, which include Angola, Zambia, Democratic Republic of the Congo, Kenya, Uganda, Rwanda, Burundi, Tanzania, Malawi, Mozambique, and South Africa.. It is largely nocturnal. The males call is an alarming series of shrieks.

It is listed as least concern.

While these are often a species that you just see, when you stop by a pile of rocks, tourism is likely to help give these curious little mammals some value. I will add links below the news section (though it may take time for it to have any articles listed), as I make them.

As we make connections for places to see these animals they will be added below.

Yellow-spotted Hyrax

Yellow-spotted Hyrax

Photo credit: D. Gordon, E. Robertson

Yellow-spotted Hyrax

Yellow-spotted hyrax, has a recognized 25 subspecies, though given the vast range of this species, this is perhaps not a surprise. They generally live in rocky areas and rock Kojes, that can be seen littered across savannah

It is listed as least concern, though in some areas it is hunted by humans, which has caused local problems. They are browsers, eating leaves twigs and other edible things it comes across (I have seen one eat a banana skin.

Kruger National Park and Mapungubwe National Park, are two reserves where they can be seen.

Countries containing at least some of their range, include  Angola, Botswana, Burundi, the Democratic Republic of the Congo, southern Egypt, Eritrea, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Somalia, northern South Africa, South Sudan, Sudan, Tanzania, Uganda, Zambia, and Zimbabwe

Though rock hyraxes resemble rodents, their closest living relatives are actually elephants and manatees.

Haviside Dolphin

Haviside dolphin by Joachim Huber

Haviside Dolphin

Heaviside’s dolphin is one of four dolphins in the genus Cephalorhynchus. The small cetacean is endemic to the Benguela ecosystem along the southwest coast of Africa. Heaviside’s are small and stocky with adults reaching a maximum length of 1.7m and weight of75 kg. The dolphin has a distinct black, grey and white body pattern, making it hard for it to be confused with any other dolphin found in the same waters. The head is cone shaped with a blunt beak. The dorsal fin is triangular in shape and centred in the middle of the back. The head and thorax are coloured light grey with darker patches around the eye. The dorsal fin,& fluke and dorsal cape are a dark grey to almost black with a band that extends forward from the dorsal fin to the blowhole. The underbelly is white, with bands that extend onto the lower rear of the body. Small white patches are located just behind the pectoral fins and a single white patch extends between these fins on the chest. Sexual dimorphism is minimal, however variation in the shape of the white patch covering the genital slit is distinct between genders. In males, the patch ends in a point, but in females widens out to cover the mammary slits.

Information on reproduction is limited for Heaviside’s dolphins, however they are thought to be comparable to Hector’s and Commerson’s dolphins. Females and males reach sexual maturity approximately between 5–9 years. Mating is thought to occur year-round, however individual females may only produce calves every 2–4 years. Gestation time is unknown. Maximum known lifespan is based on the oldest recorded individual at 26 years old. Levels of predation are unknown, however killer whales(Orcinus orca) are known predators and there is evidence of shark attack from body scars.
Heaviside’s have small home ranges of 50–80km as measured using satellite telemetry over 2–3 months and photographic resighting over up to 3 years.

 Some individuals have been resighted at the same location for up to 10 years. Prior to 2018, the “International Union for Conservation of Nature” International Union for Conservation of Nature (IUCN) listed the Heaviside’s as ‘Data Deficient’ however, as of 2017 the status was changed to ‘Near Threatened’, owing to improved knowledge on the species from multiple studies. Despite this, the overall population trend remains unknown, and there are many aspects of the species biology that remain to be studied. Heaviside’s dolphin is listed on Appendix II of the “Convention on the Conservation of Migratory Species of Wild Animals” Convention on the Conservation of Migratory Species of Wild Animals Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia. Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia. The Memorandum of Understanding was established in 2008 and aims to protect these species at a national, regional and global level.

Below here is a video of some of these dolphins, and below that is our usual list of articles on this species (we hope this number will increase in the near future).

Below this, we will add links for you to go and see these dolphins for yourself

Hourglass dolphin

Hourglass dolphin

The hourglass dolphin  is a small dolphin in the family Delphinidae that inhabits offshore Antarctic and sub-Antarctic waters. It is commonly seen from ships crossing the Drake Passage, but has a circumpolar distribution.

The species was identified as a new species by Jean René Constant Quoy and Joseph Paul Gaimard in 1824 from a drawing made in the South Pacific in 1820. It is the only to have been widely accepted as a species solely on witness accounts.

Sighting surveys were conducted in 1976–77 and 1987–88. Abundance was estimated to be 144,300 individuals, based on line transect sightings in January 1977 and January 1988 in northern Antarctic waters. This is the only abundance estimate of hourglass dolphins to date.

It is currently listed as least concern on the IUCN red list.

Below you will find a video of the species, and below this a list of any articles that have (or will be) written on this species. Under this, we will over time, hope to add links which will help you see this animal in the wild.

Common Dolphin

Common Dolphin

  • The most abundant cetacean in the world, with around 6 million (it should be noted that there are 1350 humans in the world, for every individual common dolphin).

Despite this fact and its name, the common dolphin is not thought of as the model dolphin (that honour goes to the bottlenose dolphin due to its popular appearances in aquaria and the media). It did, however, feature heavily in Ancient Greek and Roman art and culture, most notably in a mural painted by the Greek Minoan civilization.

It is currently the only member of the genus Delphinus. The common dolphin belongs to the subfamily Delphininae, making this dolphin closely related to the three different species of bottlenose dolphins, humpback dolphins, striped dolphins, spinner dolphins, clymene dolphin, spotted dolphins, fraser’s dolphin and the tucuxi and guiana dolphin.[5] The common dolphin was originally categorized into two different species (now thought to be ecotypes), the short-beaked common dolphin and the long-beaked common dolphin. However, recent evidence has shown that generally long-beaked dolphins of this species have originated from the short-beaked population, and therefore there is no close links between different long-beaked dolphins in any part of the world.

Currently, the common dolphin is divided into four subspecies:

  • D. d. delphis, the nominate subspecies
  • D. d. bairdii, the Eastern North Pacific long-beaked common dolphin
  • D. d. ponticus, the Black Sea common dolphin
  • D. d. tropicalis, the Indo-Pacific common dolphin

A number of fossils were erroneously placed in the same genus, but this has since been corrected. 

Common dolphins can live in aggregations of hundreds or even thousands of dolphins,though are often seen in groups numbering several hundred individuals (with subgroups consisting of 20-30 individuals). Occasionally, different groups will come together to form mega-pods which can consist of over 10,000 dolphins – quite a site to witness. Genetic studies in the Northeast Atlantic suggest that common dolphin pods generally do not consist of close kin, but rather of members that are not closely related. Unlike many delphinids, common dolphins do not live in a matriarchal society. That being said, closely related individuals are usually found in similar geographical locations fairly consistently, providing evidence that this species displays site fidelity (at least in the North-eastern Atlantic). Male common dolphins display greater site fidelity in relation to their kin than females.

Common dolphin pod structure often consists of nursery pods (which includes females and calves), bachelor pods (consisting of all males) and mixed groups of males and females, including sub-adults and calves. Genetic evidence seems to indicate that common dolphins live in fission-fusion societies, where dolphins form pods that are not necessarily stable and do not necessarily consist of related individuals. It is not known if common dolphins form lifelong bonds with other individuals  like the long-term male alliances seen in bottlenose dolphins.

There is some evidence that common dolphins use signature whistles, similar to that of the bottlenose dolphin. These whistles are believed to serve as an acoustic label the dolphin equivalent of a name.  It takes approximately 1 year for a calf to learn its signature whistle after which it remains stable for the rest of a dolphin’s life.

In South Africa, as many as 29 common dolphin signature whistle types were detected. However, it was difficult to determine if each dolphin had its own signature whistle due to the vast number of dolphins present (over 1,000) and anthropogenic background noise. Additionally, considering the vast number of dolphins present and  taking into account their feeding and diving behaviour, it appears that common dolphin signature whistles are also used for group cohesion. Another hypothesis for the function of signature whistles, is that they serve as a beacon for lost individuals.

Common dolphins sometimes associate with other dolphin species, such as pilot whales (note, not actually whales). In the Gulf of Corinth, common dolphins frequently display mixed species association, especially with striped and Rissos’ dolphins. Over one third of all dolphin sightings in the gulf consisted of mixed species associations that partially consisted of common dolphins. In mixed species associations, the ratio of striped to common dolphins ranged from 6-11:1. When Rissos’ dolphins were present (there would usually be only one or two individuals), it appeared that much of their scars were the result of interactions between striped and spinner dolphins. In much of the interactions, the Rissos’ dolphins would chase and herd the common dolphins toward the boat, while the common dolphins would try and swim under the Rissos’ dolphin. When groups of common and striped dolphins would charge at each other, the Rissos’ dolphin would chase the striped dolphins. Sometimes these interactions appeared to be playful, and at other times aggressive. Synchronized swimming and surfacing was commonly observed. These interactions take place in the deepest part of the Gulf, furthest from shore and usually consist of a total of 60 dolphins from all three species.

There have been 15 cases of common dolphin and striped dolphin hybrids being recorded. Genetic and observational evidence has demonstrated that the hybrids are fertile and are capable of not only reproducing with other hybrids, but are capable of reproducing with each of the parent species. Striped dolphins have been known to mate with other dolphins, as the Clymene dolphin is the result of hybrid speciation between striped and spinner dolphins. However, this is unlikely to happen with common dolphins, as their population in the Gulf of Corinth is too low. Common dolphins and bottlenose dolphins have been known to interbreed in captivity. There is one confirmed case of a hybrid between a bottlenose and common dolphin in Southern Spain, an important feeding ground for both species. The mother was a female bottlenose dolphin (dubbed as Billie) who has spent 10 years within a common dolphin pod. Billie was observed assisting common calves reach the surface at three different intervals and would babysit the calves after the mother went through labour. They have also been observed bow riding on baleen whales, and they also bow ride on boats. They are fast swimmers and breaching behaviour and aerial acrobatics are common with this species. They are also known to display altruistic behaviours to support injured members.

The short-beaked common dolphin is pregnant for 10 to 11 months. The new-born calf has a length of 70 to 100 centimetres (2.3 to 3.3 ft) and weighs about 10 kilograms. For the Black Sea population, weaning occurs at between five and six months, but occurs later (up to about 19 months) in other areas. Typical interbirth interval ranges from one year for the Black Sea population to three years for eastern Pacific Ocean populations. Age of sexual maturity also varies by location, but can range between two and seven years for females and three and 12 years for males. No evidence exists of any major reproductive differences between the two species. In captivity, the long-beaked common dolphin has hybridized with the common bottlenose dolphin . One of the hybrids has been bred back to a bottlenose dolphin, demonstrating such hybrids are fertile.

Find our news section below this video of a megapod of common dolphins

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