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Mars 08

CARNIVORES OF THE CAATINGA REGION
Author: Cláudia Bueno de Campos – Biologist, consultant to the Instituto Pró-Carnívoros (Pro-Carnivore Institute).

In several biological groups there are species with the habit of feeding on other animals. This habit is called carnivorous. Thus, there are carnivorous birds, fish, reptiles, insects and even plants. However, in scientific classification, carnivores constitute an order of animals (Carnivora Order) belonging to the mammalian group (Mammalia Class). The main characteristics differentiating mammalians from other groups of animals are the presence of mammary glands, fur, and the ability to regulate body temperature (warm-blooded animals).
 

Carnivores were given this classification because of the habit of feeding on live animals. Although some still maintain a totally carnivorous diet, others have adapted to the different types of food available in their habitats.

This explains the fact that some species feed both on other animals and on plants.

They are animals of prey with a physical and physiological structure that most often ensures the success of the hunting actions on which their survival depends. They are intelligent, agile and strong, with powerful claws and sharp teeth to tear apart the skin and flesh of their prey. They are animals at the top of the food chain, and therefore influence its structure by preying on the species necessary for their survival.

For that reason, the species belonging to the Carnivora Order are important indicators of the integrity of ecosystems, playing an important role in the natural functioning of same.   









Puma yagouaroundi - common names: jaguarundi, dark-grey cat, blue cat or red cat.

 

 

The species belonging the Carnivora Order are widely distributed throughout the world and comprise fifteen families, of which six are found in Brazil (Canidae, Felidae, Mephitidae, Mustelidae, Procyonidae and Otarridae). Within these families, 29 species are identified, of which 17 are found in the Caatinga region, the main biome in North-east Brazilian (Table 1) and one of the most endangered in Brazil. Among the species present in this biome, there are two of the largest predatory animals in the world, the onça-pintada or jaguar (Panthera onca) and the onça-parda or puma (Puma concolor).

Table 1: List of carnivore species found in the Caatinga Biome, and medium and large mammals recorded at Fazenda Tamanduá in January 2008.

Order

Family

Scientific Name 

Common Name

Artiodactyla

Cervidae

Mazama gouazoubiraT

Veado-catingueiro, a species of deer

Carnivora

Canidae

Cerdocyon thousT

Bush dog

 

 

Chrysocyon brachyurus

Guará wolf

 

 

Pseudalopex vetulus

Raposa-do-campo (”field fox”)  

 

 

Speothos venaticus*

Cachorro-vinagre (”vinegar dog”)

 

Felidae

Leopardus pardalisT

Jaguatirica, a wild cat

 

 

Leopardus tigrinusT

Small margay

 

 

Leopardus wiedii

Margay cat

 

 

Puma concolor

Puma

 

 

Puma yagouaroundiT

Jaguarundi

 

 

Panthera onca

Jaguar

 

Mephitidae

Conepatus semistriatus

Jaritataca, an animal similar to the opossum

 

Mustelidae

Eira barbara

Tayra

 

 

Galictis vittata

Large ferret

 

 

Galictis cuja

Small ferret

 

 

Lontra longicaudis

Otter

 

Procyonidae

Nasua nasua

Coati

 

 

Procyon cancrivorusT

Crab-eating raccoon

Cingulata

Dasypodidae

Euphractus sexcinctusT

Peba (a species of armadillo)

Rodentia

Caviidae

Kerodon rupestres

Rock cavy

T = Mammals recorded at Fazenda Tamanduá.

* Speothos venaticus (“vinegar dog”): this species was not recorded in any caatinga region, but in an ecotone region, that is, a transitional region between various types of vegetation, of which the caatinga is one. For that reason, we mention here the occurrence of this species.

 
 

Despite their ecological importance, the great majority of carnivores are endangered by various forms of pressure coming from human activities, such as sports hunting, hunting for the illegal fur trade and traffic in live animals, and hunting by rural producers because of economic damage to domestic livestock.

However, the destruction or alteration of their habitats for many different purposes, such as road construction, illegal removal of timber wood and agriculture that is not properly organized are the main threats to this group, and may cause, among other damage, a reduction in the local quantity of prey, in usable areas and in the exchange of genetic material.

For that reason, research involving the collection of data on carnivores under several approaches, such as feeding habits, reproductive behavior, genetics, distribution, and conflicts with human beings, is important in order to obtain knowledge that may be used as a basis for action plans for the preservation of predatory species, of prey and of the region under study; for a reduction in conflicts between humans and predators; and also to help to reduce economic losses. 

Division of the main Brazilian regions - highlighting the Caatinga Biome.

 

Following the trend of actions implemented by several private institutions in Brazil and worldwide, with the objective of preserving natural resources, Fazenda Tamanduá (2500 ha), located in Santa Terezinha, State of Paraíba, has taken another initiative to seek information on the fauna that exists in the region, carrying out a survey of the fauna comprised by medium and large mammals. The survey was effected by the Pro-Carnivore Institute (www.procarnivoros.org.br), with the technical support of CENAP/ICMBio. The following species were identified in the first phase of the work: Cerdocyon thous, Euphractus sexcinctus, Kerodon rupestres, Leopardus pardalis, L. tigrinus, Mazama gouazoubira, Puma yagouaroundi, Procyon cancrivorus, which are indicated in Table 1 by the letter “T”. This work will update the list of species found in the region, showing that it is possible to restore the fauna within a certain area and consequently local biodiversity. It can also be used as a basis for future scientific research. 

 

Leopardus pardalis, common name: jaguatirica,  photographed during a survey of mammal species on Fazenda Tamanduá (Jan. 2008).

Cerdocyon thous, common name: cachorro-do-mato or bush dog, photographed during a survey of mammal species on Fazenda Tamanduá  (Jan. 2008).

Procyon cancrivorus, common name: crab-eating raccoon, photographed during a survey of mammal species on Fazenda Tamanduá (Jan. 2008).

 

Within the history of Fazenda Tamanduá – which is a reference in organic and biodynamic farming and maintains under preservation almost one third of the farm’s area, including a 325 hectare Private Nature Reserve (“RPPN”) and legal reserve areas – one can find information on actions to preserve both the fauna and flora, showing the concern of the farm’s owner, Mr. Pierre Landolt, with the environment of the North-eastern sertão region.

 

The hunting prohibition, adopted since the farm was first bought at the beginning of the seventies, was the first positive local impact, because it enabled the recovery of the existing animal populations over time. That decision restored balance to the local food chain, which shows the importance of this type of attitude. Since  1999, three studies have been carried out on the farm.

The first involved birds (Publication: Birds on Fazenda Tamanduá, R.M.L. Neves and W.R. Telino Júnior); later A.C.A. Moura carried out a study on mammals (not published); and in 2000 a phyto-sociological survey of the RRPN was carried out and published by L.V.C. Araújo.

Continuing the preservation work, the mocó, or rock cavy (Kerodon rupestres), a rodent typical of the caatinga’s rocky regions, was successfully re-introduced in some areas where it was no longer seen. 

Mocó: Each animal received a ring with a
specific number and was photographed


Bibliography:
 

CAUGHLEY, G.; Sinclair, A.R.E. 1994. Wildlife Ecology and Management. Blackwell Scientific Publications, Boston, 334 p.

EISENBERG, J.F. 1989. An Introdution to the Carnivora. 1-9. In: Gittleman, J.L. (ed.), Carnivore Behavior, Ecology, and Evolution. Cornell University Press, New York, Comstock Publ. Associates, Vol. 1, 620 p.

EMMONS, L.H. 1997. Neotropical Rainforest Mammals – A field guide. 2nd Ed. University of Chicago Press, Chicago, USA, 307 p.

GITTLEMAN, J.L. (Ed.). 1989. Carnivore Behavior, Ecology, and Evolution. Vol. 1, Cornell University Press, New York, 620 p.

GITTLEMAN, J.L. (Ed.). 1996. Carnivore Behaviour, Ecology and Evolution. Vol. 2, Cornell University Press, Ithaca, New York & London. 644 p.

INDRUSIAK, C.; Eizirik, E. Carnívoros. 2003. In: Fontana, C.S.; Bencke, G.A.; Reis, R.E. Livro Vermelho da Fauna Ameaçada de Extinção no Rio Grande do Sul. Porto Alegre: EDIPUCRS, p. 507-533.

KUCERA, T.E.; Zielinski, W.J. 1995. The case of forest carnivores: small packages, big worries. Endang. Species UPDATE, 12(3): 1-7.

MARGARIDO, T.C.M.; Braga, F.G. 2004. Mamíferos. p. 25-142. In: Mikich, S. B.; Bérnils, R.S. (Eds.). Livro Vermelho da Fauna Ameaçada no Estado do Paraná. Curitiba: Secretaria Estadual do Meio Ambiente, Instituto Ambiental do Paraná, 763 p.

TERBORGH, J.; Lopez, L.; Nunez, P.; Rao, M.; Shahabuddin, G.; Orihuela, G.; Riveros, M.; Ascanio, R.; Adler, G.H.; Lambert, T.D.; Balbas, L.L. 2001. Ecological meltdown in predator-free forest fragments. Science, 294: 1923-1926.


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