<< Previous Next >>

The Bushpig


The Bushpig
Photo Information
Copyright: Serge BREARD (BREARD) Gold Star Critiquer/Gold Note Writer [C: 106 W: 1 N: 419] (2141)
Genre: Animals
Medium: Color
Date Taken: 2011-07-22
Categories: Mammals
Camera: Nikon D800, 70-200mm f/2.8 VR
Exposure: f/5.6, 1/125 seconds
More Photo Info: [view]
Photo Version: Original Version
Theme(s): Parc Animalier de Cerza [view contributor(s)]
Date Submitted: 2011-10-13 0:32
Viewed: 5012
Points: 28
[Note Guidelines] Photographer's Note [French]
Bushpig

(Potamochoerus larvatus) is a wild pig, the only representative of the order Artiodactyla and the largest wild mammal found in Madagascar.
It is thought that his arrival from Africa to Madagascar is relatively recent, however, how it happened is still a mystery. The most likely hypothesis is that of arriving at the same time as the first human populations from Africa who settled in part, Madagascar, 2000 years ago.
This assumption is based on the fact that bushpig could be domesticated or semi-domesticated before its introduction on the island. Some authors have found evidence of domestication of bush pig in some parts of Africa (Faure and Guerin, 1988).
In contrast, other authors suggest that the species may be endemic to Madagascar. This would be in the latter case the only Malagasy species that has an equivalent in the African continent (except for one species already extinct pygmy hippopotamus).

Distribution
Bibliographic data on the distribution of bush pig in Madagascar indicate its presence in a vast majority of the Malagasy territory, except for the Highlands. Preference for wooded areas with no water, and its ability to adapt as to fit several very different areas of the territory such as the rain forest on the east coast, the semi-deciduous dry forest West or South shrublands.
The densities are important in forest areas that are their ideal habitat, especially in protected areas, where they stay away from their one and main predator: man.
Taxonomy
According to the literature two species of bush pigs are classically recognized:
- Potamochoerus porcus, living in the rainforests of West Africa and Central Africa.
- Potamochoerus larvatus, in the mosaics of forest savanna of East Africa and Southern Africa. The latter species has three sub-species of the large morphological variation and geographical P.larvatus Hassam, in East Africa; P.larvatus somaliensis, Ethiopia, and P.larvatus koiropotamus, South Africa.
In Madagascar, the bush pig is considered an introduced species for about 2000 years, from the species P. larvatus. According to Cuvier (1822), two subspecies are described:
- P.larvatus larvatus whose distribution is bounded on the west coast of Madagascar and the Comoros. This subspecies is characterized by a coat darker and larger than its parent on the East Coast.
- P.larvatus hova, located on the east side of the island and is characterized by a more reddish coat and a smaller size.
The description of two subspecies keeps a close analogy with the two types of animals described by the Malagasy people as "lamboala" and "lambosui", the first being a greater variety and a darker coat and the second most smaller and Rouss
Hybridization
In several countries in West Africa or Central as Burkina Faso, Gabon and Zaire, cases of crossing with pigs (Sus scrofa) have been reported. The same phenomenon is described in Madagascar, in areas of pig scavenging. Hybridization between bushpig (P. P.larvatus and porcus) and feral pigs are also reported in the literature in Southern Africa and Central Africa.
The domestic pig has 34 pairs of chromosomes and bushpig are 38. Since the genetic distance, it is unlikely that the hybrids are fertile, but in any case, we find sufficient evidence to believe that they can exist in Africa and Madagascar.
In some cases these "hybrid" often described in some areas of the country, could be feral domestic pigs. In the region of Mariarano, for example, the presence of hybrids is often reported as hog farms have been abandoned for 60 years and that many animals could have stayed in scavenging.
Ecology of the bushpig Malagasy
In general, the available information on gender Potamochoerus is scarce. Most information comes from South Africa. The case of Madagascar is no exception, and studies on this species of swine are virtually nonexistent. Often regarded as harmful, it has earned so far very little attention from organizations working on wildlife. The only information found confined to a few report on their impact on endemic species of turtles, with the exception of a recent WCS on the island of Nosy Mangabey.
Social organization
Social life and the bushpig essentially based on the family group, consisting of a couple of adult animals (male and female) and offspring of a generation or two. The average size of the family group depends on the environment ranging from 2.4 people in South Africa to over 30 in the equatorial forest. In Madagascar, the group size accepted is 1 to 10 maximum. The dispersal of young occurs between 1.5 and 2 years of age.
Territoriality
According to studies carried telemetry in areas of Cape Town, through the territory used by a bush pig is 7.2 km. Territory size depends mainly on food availability. The estimated densities of wild pigs in several regions of South Africa, is between 0.35 and 0.5 animals / km ² and exceeds the 3 individuals / km ² in some areas of rainforest, the life expectancy South Africa is 2.8 years.
In Madagascar, the densities in the forest areas seem high judging by the field observations and the number of animals taken by hunting. On the other hand the absence of natural predators other than humans and feral dogs, allows a longer life expectancy.
It appears that there may be a correlation between habitat quality and density. According to Cumming (1995), alluvial soils harboring higher densities of warthogs on sandy soils. However, soils in the region of Mahajanga are quite heterogeneous texture characterized by a sandy-silty, sandy and laterite based on the distance from the coast, river mouths and relief.
Reproduction
The reproductive cycle of the red river hog is seasonal. In southern Africa, the majority of births take place at the beginning of the rainy season. Factors such as food availability, photoperiod or temperature may be involved in the onset of oestrus. As in other species of wild pigs, the possibility of two litters per year in the tropics are benefiting from two rainy seasons.

Within a family unit, only the dominant pair breed monogamous, once sexually mature, around 20 months of life. After a gestation period of 110-120 days, about four months, the female gives birth to 3 or 4 small on average, although the range of 6 to 8 animals have been described. In South Africa, the reproductive potential of P. larvatus and 2 to 3 small / reach.
Ecological role
In South Africa, the bush pig densities are generally low and the ingestion of vertebrate and invertebrate creatures is seen as opportunistic. Their effects on other animal populations are insignificant. The only exception is that toads rain (Breviceps fuscus), including predation by wild pigs appears to be a significant cause of mortality in the Cape Province.
Predation bushpig several endemic species and its environment has been frequently reported in Madagascar, but rarely demonstrated so far. In general, the bush pig is often perceived by most conservation organizations as a pest for the endemic species of flora and fauna. However, there is a severe lack of data on this species, which makes it difficult to confirm this hypothesis.
The first studies on the ecology of the Malagasy bushpig have not been able to show a negative impact on native species. On the contrary, it appears that these animals may play a role in seed dispersal. Populations living within or around protected areas, bushpig can play a "buffer" on predation of other susceptible species: its classification as a pest allows the hunt all year, and this business supplies meat easily neighboring populations of protected areas, limiting the impact on other protected species. Each bushpig provides at least 55% of its weight in meat. For each animal an average weight of 40 kg, a family receives at least 22 kg of meat quality.


Instead of shooting:

Welcome to the Animal Park CERZA of Lisieux in Normandy.
First amusement park in Normandy with 300 000 visitors a year, the Animal Park of Cerza is one of the most beautiful parks in France.
More than 800 wild animals live peacefully in parole on 60 hectares of forests and valleys of the park. Explore the 120 species from 5 continents through two circuits of walking tour and see the animals in natural conditions. Everything here was designed for the welfare of animals.

anel, maurydv, marius-secan, maaciejka, cirano, jignasi, drchoneydew has marked this note useful
Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 
Only registered TrekNature members may write critiques.
Discussions
None
You must be logged in to start a discussion.

Critiques [Translate]

superb white balance and lovely moderate colors Serge. I would use even wider aperture in order to remove completely the silhouette of the fence in the foreground!
Regards,
George Veltchev

Ciao Serge, lovely wild pig in nice action, fine details, splendid light, excellent sharpness and wonderful natural colors, very well done my friend, ciao Silvio

barthatibor
Hello Breard
Great photo of this very interesting animal.Amazing coloursExcellent sharpness and compozition.
Regards
Tibi

  • Great 
  • anel Gold Star Critiquer/Gold Note Writer [C: 3053 W: 3 N: 8715] (40574)
  • [2011-10-13 4:47]

Bonjour Serge,
Un animal qui m'était totalement inconnu jusqu'à maintenant. Mais il est impressionnant ce Potamochère! Une image excellente aussi, naturelle et qui nous montre parfaitement cet animal provenant de Madagascar, un pays que j'aimerais tant visiter un jour.
Un grand merci ausi pour ta note complète
Amitiés
Anne

Hallo Serge,
beau portrait de ce cochon sauvage, très bonne netteté, couleurs belles et naturelles, excellent point de vue
Merci et félicitations
Bonne soirée
Maurizio

A wonderful animal with nice colours and markings. Excellent photo with good detail and light. Good point of view and composition. regards yiannis

  • Great 
  • PeterZ Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5137 W: 166 N: 13121] (49139)
  • [2011-10-13 7:02]

Hello Serge,
Excellent close photo of this bushpig in great sharpness and details. Never seen before. Very beautiful colours and taken from a good POV.
Regards,
Peter

Hello serge,
Spectacular capture of a lovely species.
Excellent details, colors and great sharpness.
Exceptional focus and clarity.
Lovely creature in their natural habitat.
Thanks for sharing!
Marius.

Hi Serge,
what a nice and interesting animal. Great point of view and colours. Perfect composition.
Thanks for sharing,
Maciek

  • Great 
  • siggi Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3097 W: 109 N: 12399] (52850)
  • [2011-10-13 11:03]

Hello Serge.
That is one big fat Bushpig.Great composition and colours,nice detail and expression captured.
A good and very informative note too,very well done.Best regards Siggi

  • Great 
  • cirano Gold Star Critiquer/Gold Note Writer [C: 997 W: 0 N: 944] (13609)
  • [2011-10-13 14:54]

Hello Serge,
A very good photo of this animal with excellent sharpness and very nice colors.
Have a nice day!...
Dûrzan

  • Great 
  • lousat Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6595 W: 89 N: 15659] (65489)
  • [2011-10-13 15:33]

Salut Serge,j'ai ete' au Madagascar mais je n'avais eu pas la chance de rencontrer ce curieu porc,ta photo est tres belle et vraiment interessante,une espece que je connassais pas! Mes compliments et belle journee',Luciano

Amazing animal and interesting note Serge! Beautiful photo too.
Regards,
Christodoulos

Interesante trabajo Serge y es además la primera vez que veo a este animal.
Un saludo y buen fin de semana: J. Ignasi.

Incredible shot of this bushpig looks ancient to me..never saw one before; his colors stand out perfectly against the dank background..amazing capture! Thank you for sharing and updating us about this species!

Calibration Check
















0123456789ABCDEF