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Ageing feral pigs (Sus scrofa) through tooth eruption and wear
Author(s): Arnaud Desbiez and Alexine Keuroghlian
Year: 2009
Description/Abstract: The ecological impact of feral pigs in the Pantanal is still not well understood. Through their rooting activities, feral pigs can disturb large areas. In the Pantanal, whe present at high densities, herds of feral pigs are reported by local people to cause extensive damage to pasture. In forested areas feral pigs uproot saplings and seedlings and may affect the recruitment of certain species.
Journal/Source: Suiform Soundings
Publisher: The World Conservation Union
Full Citation: Desbiez, A. L. and Keuroghlian, A. (2009). Ageing feral pigs (Sus scrofa) through tooth eruption and wear. Suiform Soundings. 9(1): 48–55.
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Area use by white-lipped and collared peccaries (Tayassu pecari and Tayassu tajacu) in a tropical forest fragment
Author(s): Alexine Keuroghlian, Donald Eaton & William Longland
Year: 2004
Description/Abstract: We present the first long-term radio telemetry study of area use by white-lipped and collared peccaries in a tropical forest fragment. Population densities of both species in a 2178-ha fragment of semideciduous Atlantic forest in southeastern Brazil were similar to estimates from another regional fragment with 16 times the area. The population of 150 (±52) white-lipped peccaries was divided among 3–4 subherds. We observed a high frequency of switching of individuals among subherds and documented periodic subherd fusion. Seven to 22 collared peccary herds (mean herd size, 9) persisted in the main forest fragment. Average home range size for the white-lipped peccaries was 1871 ha (90% HM). This was similar to the few reliable estimates available from continuous tropical forests. Despite supposed area restrictions, white-lipped peccaries maintained distinct seasonal ranges with a minimum of overlap. Within seasons, subherds overlapped spatially, but were separated temporally. Average home range sizes of two radio-tracked collared peccary herds were 305 and 123 ha. Home range boundaries and seasonal ranges of collared peccary herds shifted minimally, and herd subgrouping was short-lived. Spatial overlap between the two peccary species varied seasonally with white-lipped herd movements. We discuss future research needs and management actions for conservation of these species in fragmented landscapes.
Journal/Source: Biological Conservation
Publisher: Society for Conservation Biology
Full Citation: Keuroghlian, A. D.P. Eaton W. S. Longland. (2004). Area use by white-lipped and collared peccaries (Tayassu pecari and Tayassu tajacu) in a tropical forest fragment. Biological Conservation. 120(3): 411-425.
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Avaliação do Risco de Extinção do Cateto Pecari tajacu Linnaeus, 1758, no Brasil -Extinction risk assessment of Collared peccaries in Brazil
Author(s): Desbiez, A.L.J, Keuroghlian, A.; Beisiegel, B.M.; Medici, E.P.; Gatti, A.; Mendes Pontes, A.R.; Campos, C.B.; Tófoli, C.F.; Moraes Jr., E.A.; Azevedo, F.C.; Pinho, G.M.; Cordeiro, L.P.; Santos Jr., T.S.; Morais, A.A.; Mangini, P.R.; Flesher, K.; Rodrigues, L.F.; Almeida, L.B.
Year: 2012
Description/Abstract: O estado de conservação do cateto, Pecari tajacu (Linnaeus, 1758) foi avaliado de acordo com os critérios da IUCN (2001), com base nos dados disponíveis até 2010. Síntese o processo de avaliação pode ser encontrada em Peres et al. (2011) e em Beisiegel et al. (2012). No Brasil como um todo, a espécie foi considerada Menos preocupante.
Journal/Source: Biodiversidade Brasileira
Full Citation: Desbiez, A.L.J, Keuroghlian, A.; Beisiegel, B.M.; Medici, E.P.; Gatti, A.; Mendes Pontes, A.R.; Campos, C.B.; Tófoli, C.F.; Moraes Jr., E.A.; Azevedo, F.C.; Pinho, G.M.; Cordeiro, L.P.; Santos Jr., T.S.; Morais, A.A.; Mangini, P.R.; Flesher, K.; Rodrigues, L.F.; Almeida, L.B. 2012. Avaliação do Risco de Extinção do Cateto Pecari tajacu Linnaeus, 1758, no Brasil (Extinction risk assessment of Collared peccaries in Brazil). Biodiversidade Brasileira (2012) Ano II, Nº 1, 74-83.
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Avaliação do Risco de Extinção do queixada, Tayassu pecari (Link, 1795) no Brasil. Extinction risk assessment of white-lipped peccaries in Brazil
Author(s): Keuroghlian, A.; Desbiez, A.L.J.; Beisiegel, B.M.; Medici, E.P.; Gatti, A.; Mendes Pontes, A.R.; Campos, C.B.; Tófoli, C.F.; Moraes Jr., E.A.; Azevedo, F.C.; Pinho, G.M.; Cordeiro, L.P.; Santos Jr., T.S.; Morais, A.A.; Mangini, P.R.; Flesher, K.; Rodrigues, L.F.; Almeida, L.B.
Year: 2012
Description/Abstract: O estado de conservação do queixada, Tayassu pecari (Link, 1795), foi avaliado de acordo com os critérios da IUCN (2001), com base nos dados disponíveis até 2010. Síntese do processo de avaliação pode ser encontrada em Peres et al. (2011) e em Beisiegel et al. (2012). As informações sobre a conservação desta espécie foram analisadas separadamente para cada um dos principais biomas rasileiros. Espera-se, com isto, fundamentar políticas de conservação apropriadas a esta espécie em cada região do país.
Journal/Source: Biodiversidade Brasileira
Full Citation: Keuroghlian, A.; Desbiez, A.L.J.; Beisiegel, B.M.; Medici, E.P.; Gatti, A.; Mendes Pontes, A.R.; Campos, C.B.; Tófoli, C.F.; Moraes Jr., E.A.; Azevedo, F.C.; Pinho, G.M.; Cordeiro, L.P.; Santos Jr., T.S.; Morais, A.A.; Mangini, P.R.; Flesher, K.; Rodrigues, L.F.; Almeida, L.B. 2012. Avaliação do Risco de Extinção do queixada, Tayassu pecari (Link, 1795) no Brasil. (Extinction risk assessment of white-lipped peccaries in Brazil). Biodiversidade Brasileira (2012) Ano II, Nº 1, 84-102.
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Avaliação preliminar de um sistema rotacionado em pastagens nativas no Pantanal; Preliminary Assessment of a Rotational System in Native Pastures in the Pantanal
Author(s): Gisaine Amador, Alexine Keuroghlian, Donald Eaton, Jober Guimaraes and Sandra Santos
Year: 2008
Description/Abstract: The rotation grazing system is a form of management developed to ensure better efficiency in the use of forage in a particular pasture area. This study show some preliminary results about a pilot project to evaluate implementation of a rotational system with native pastures in a private farm in the Nhecolândia sub-region, Pantanal, MS. While the rotational system is a management practices recommended by Embrapa Pantanal, yet few studies are devoted to evaluate the performance of cattle with the adoption of this practice in native pastures of the Pantanal. This pilot study indicated that heifers reared in a rotative system had a better weight gain in relation to continuous system of anterior year.
Journal/Source: Revista Brasileira de Agroecologia
Publisher: Associação Brasileira de Agroecologia
Full Citation: Amador, G. A., Keuroghlian, A. Eaton, D.P., Guimaraes, J., Santos, S.A. (2008). Avaliação preliminar de um sistema rotacionado em pastagens nativas no Pantanal; Preliminary Assessment of a Rotational System in Native Pastures in the Pantanal. Revista Brasileira de Agroecologia. 3 (2): 122-125.
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Boi, sombra e agua fresca- Produção sustentável e renda em pequenas propriedades
Author(s): WCS Brasil
Year: 2012
Description/Abstract: Destinada aos proprietários e comunidades rurais, ONGs, institutos de conservação e acadêmicos de áreas afins. O uso de práticas sustentáveis tem a função de reduzir e mitigar as pressões sobre recursos e servicos ambientais.
Publisher: Wildlife Conservation Society Brazil
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Contact area between the geographical distributions of Saguinus midas and Saguinus bicolor (Callitrichidae-Primates)- the importance of interactions and ecological factors
Author(s): Fábio Röhe
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Extention of Callicebus dubius (Primates, Cebidae) distribution and evidence of geographic invasion of Callicebus stephennashi domain
Author(s): Fabio Röhe & José S.Silva-Jr.
Description/Abstract: Callicebus Thomas, 1903, one of the most diverse genera of Neotropical primates, is distributed in the tropical forests of the Amazon and Orinoco basins, the Atlantic forest of northeastern and southeastern Brazil, and the Chaco and dry forests of Paraguay and Bolivia. Callicebus dubius is described as a hybrid form and rearranged in the group of C. cupreus species. It occurs to the south of the Ituxi River, a right bank tributary of the Purus River. In this paper we report other occurrence sites of C. dubius in Mucuim-Ituxi interfluves, its possible invasion of the geographic domains of C. stephennashi on the north bank of the Mucuim River and an agonistic territorial interaction between two C. dubius individuals on an unpaved road.
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Feeding habits of the puma (Puma concolor) (Linnaeus 1771) in Mosaic of secondary forest and reforestation of Eucalyptus saligna in Atlântuca Forest in the Municipality of Pilar do Sul - SP
Author(s): Fabio Röhe
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Frugivory and seed dispersal by the lowland tapir (Tapirus terrestris) in Southeast Brazil
Author(s): Mauro Galetti, Alexine Keuroghlian, Lais Hanada & Maria Inez Morato
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Habitat use by Peccaries and feral pigs of the Southern Pantanal, Mato Grosso do Sul, Brazil
Author(s): Alexine Keuroghlian, Donald Eaton & Arnaud Desbiez
Year: 2009
Description/Abstract: Recent studies have shown that their role as fruit predators and dispersers affects the biodiversity of certain forest habitats. The white-lipped peccaries are the only rain forest ungulates which form large herds (50-300 individuals), so their effects on forest habitats can be dramatic. Extirpation of either peccary species from a rain forest area will cause habitat alterations and additional biodiversity losses.
Journal/Source: Suiform Soundings
Publisher: The World Conservation Union
Full Citation: Keuroghlian, A., Eaton, P.D. and Desbiez, A. L. (2009). Habitat use by Peccaries and feral pigs of the Southern Pantanal, Mato Grosso do Sul, Brazil. Suiform Soundings. 8(2): 9–17.
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Hunting strategy of the margay (Leopardus wiedii) to attract the wild pied tamarin
Author(s): Fabiano Calleia, Fabio Röhe & Marcelo Gordo
Year: 2009
Description/Abstract: In this study, we focus on a hunting technique by the margay, Leopardus weidii. Morphologically, margays have arboreal adaptations, but there are no published reports of the predation strategy of wild margays. The few studies on the margay suggest that its diet is mainly composed of arboreal mammals.
Journal/Source: Neotropical Primates
Publisher: IUCN/SSC Primate Specialist Group
Full Citation: Calleia F. O., Röhe F., Gordo M. (2009). Hunting strategy of the margay (Leopardus wiedii) to attract the wild pied tamarin (Saguinus bicolor). Neotropical Primates. 16(1): 32-34.
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Importance of rare habitats and riparian zones in a tropical forest fragment - preferential use by Tayassu pecari, a wide-ranging frugivore
Author(s): Alexine Keuroghlian & Donald Eaton
Year: 2008
Description/Abstract: This study examined seasonal habitat use by two sympatric peccary species (Tayassu pecari and Tayassu tajacu) in an Atlantic forest fragment on the plateau region of São Paulo state, Brazil. Previous studies showed that range use by T. pecari was highly nonrandom, and that both species persisted at population densities typical of larger forest fragments. To explain this, we quantified the use and availability of habitats and riparian zones with compositional analysis. Use by T. pecari was nonrandom with respect to availability. Habitat preferences were different during dry and wet seasons and corresponded closely with seasonal movements, core range and fruit use. Although aquatic habitats made up a small proportion of the herd home range, they were most preferred by T. pecari during both seasons. Headwater palmito Euterpe edulis swamps were most favored in the dry season, whereas swamps and marshes near larger streams were preferred in the wet season. Tayassu pecari preferred riparian zones <50 m from streams over drier zones. These habitats were important sources of fruits, travel routes and corridors between forest patches in the agricultural matrix. The least-preferred habitat of T. pecari during both seasons was disturbed forest edge dominated by bamboo. Habitat and riparian zone use were herd-specific for T. tajacu and related to habitat quality and composition where stable home ranges had been established. The persistence of viable peccary populations after 75 years of fragmentation-associated pressures is related to preservation of rare habitats and overall habitat diversity. Thus, T. pecari is an indicator of high habitat diversity in forest fragments and will function as an umbrella species when targeted for conservation.
Journal/Source: Journal of Zoology
Publisher: The Zoological Society of London
Full Citation: Keuroghlian, A. and D.P. Eaton. (2008). Importance of rare habitats and riparian zones in a tropical forest fragment: preferential use by Tayassu pecari, a wide-ranging frugivore. Journal of Zoology. 275(3): 283–293
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Jaguarundi (Puma yagouaroundi) (Geoffroy, 1803) (Carnivora, Felidae) food habits in a mosaic of Atlantic Rainforest and eucalypt plantations of southeastern Brazil
Author(s): C. Tófoli, Fabio Röhe & E. Setz
Year: 2009
Description/Abstract: Food habits of jaguarundi (Puma yagouaroundi) (Geoffroy, 1803) (Carnivora, Felidae) were studied between November 2000 and November 2001, in a 24.9 km2 area of secondary Atlantic Rainforest and eucalypt plantation, in the Serra de Paranapiacaba, São Paulo State, Brazil. Analyses of 26 fecal and regurgitate samples, obtained over a stretch of 570.1 km, showed the consumption of 19 prey items and 74 prey occurrences. Small mammals were the most frequent food item (42.5%), followed by birds (21%), reptiles (14%) and medium-sized mammals (3%). The percent occurrence (PO) suggests that the diet consisted mainly of small rodents (30%) and birds (21%). We recorded for the first time the predation of Viperidae snakes by P. yagouaroundi. Although having a large list of items and range of dietary niche breadths (Bsta = 0.76), our data show that jaguarundi prey mainly on small vertebrates (mammals, birds or reptiles), and even in tall tropical forests or eucalypt plantations, it preys mostly on animals that come to, or live on, the ground.
Journal/Source: Brazilian Journal of Biology
Publisher: Instituto Internacional de Ecologia
Full Citation: Tófoli, C. F.; Röhe, F.; Setz, E. Z. F. (2009). Jaguarundi (Puma yagouaroundi) (Geoffroy, 1803) (Carnivora, Felidae) food habits in a mosaic of Atlantic Rainforest and eucalypt plantations of southeastern Brazil. Brazilian Journal of Biology, 69(3): 631-637.
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Management plan of the Ecologial Station Dos Caetetus
Author(s): Marlene Francisca Tabanez, Giselda Durigan, Alexine Keuroghlian et al.
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Marmosets and Tamarins- Pocket identification guide
Author(s): Anthony B. Raylands et al.
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Medium and large mammals
Author(s): Fabio Röhe
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New distribution limits of Bassaricyon alleni Thomas 1880 and insights on an overlooked species in the Western Brazilian Amazon
Author(s): Ricardo Sampaio et al.
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New vertebrate species- Preview
Author(s): Fabio Röhe
Description/Abstract: 2011 McGraw-Hill Yearbook of Science and Technology.
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Niche partitioning between sympatric populations of native white-lipped peccary (Tayassu pecari), collared peccary (Tayassu tajacu), and introduced feral pigs (Sus Scrofa)
Author(s): Arnaud Desbiez, Sandra Santos, Alexine Keuroghlian & Richard Bodmer
Year: 2009
Description/Abstract: The introduction of a species into an ecosystem with species already occupying a similar trophic level is predicted to lead to a high degree of niche overlap. The feral pig (Sus scrofa), one of the world's worst invasive species, was introduced to the Pantanal about 200 years ago and is thought to compete with the native white-lipped peccary (Tayassu pecari) and collared peccary (Pecari tajacu). Resource partitioning between the 3 species was examined, including analysis of fruit items and plants in fecal samples as well as encounter rates in different habitats, to help generate hypotheses about competitive interactions among the species. Overlaps in food resources and habitat use between feral pigs and peccaries were found to be lower than expected. In fact, niche overlap was highest between the native species. Results indicate that currently, feral pigs are not a direct threat to the native peccaries in the study area. Differences in morphology and behavior indicate possible mechanisms of niche partitioning between the species. Feral pigs may, nevertheless, impact the wildlife community in other ways as predators of eggs, by destruction of vegetation through rooting, or by functioning as disease reservoirs. Cattle-ranching activities may favor feral pigs and the current anthropogenic changes in the landscape could lead to changes in competitive dynamics between feral pigs and native species.
Journal/Source: Journal of Mammalogy
Publisher: The American Society of Mammalogists
Full Citation: Desbiez, A. L.; Santos, S. A.; Keuroghlian, A. and Bodmer, R. E. (2009). Niche partitioning between sympatric populations of native white-lipped peccary (Tayassu pecari), collared peccary (Tayassu tajacu), and introduced feral pigs (Sus Scrofa). Journal of Mammalogy. 90(1):119–128.
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