scholarly journals MAMÍFEROS CARNÍVOROS DEL PARQUE NACIONAL LAGUNAS DE CHACAHUA, OAXACA, MÉXICO: RIQUEZA, ABUNDANCIA Y PATRONES DE ACTIVIDAD

2015 ◽  
Vol 5 (2) ◽  
pp. 39
Author(s):  
Alejandra Buenrostro-Silva ◽  
Daniela Sigüenza Pérez ◽  
Jesús García-Grajales
Keyword(s):  
Activity Patterns ◽  
Camera Traps ◽  
Didelphis Virginiana ◽  
Sampling Effort ◽  
Potential Prey ◽  
Urocyon Cinereoargenteus ◽  
Dasypus Novemcinctus ◽  
Mammal Species ◽  
Nasua Narica ◽  
Reptile Species

RESUMENLos mamíferos carnívoros desempeñan un rol importante en la estructura de las comunidades; sin embargo, los estudios sobre este grupo son complicados debido a sus estilos de vida, por lo que aún existen vacíos de información biológica. En este estudio se utilizaron trampas cámara en cuatro localidades de la costa central de Oaxaca, México. El trabajo se efectuó de septiembre de 2009 a agosto de 2010, con un esfuerzo total de 1012 días/trampa. Se obtuvieron 160 registros fotográficos independientes de ochos especies de mamíferos carnívoros y respecto a las presas potenciales se registraron cinco especies de mamíferos, dos especies de reptiles y dos grupos (aves y ratones). De acuerdo al Índice de Abundancia Relativa obtenido, los carnívoros más abundantes fueron Spilogale pygmaea, Urocyon cinereoargenteus y Nasua narica, mientras que las presas potenciales más abundantes fueron Didelphis virginiana, Dasypus novemcinctus y el grupo de los ratones. El patrón de actividad de las especies registradas mostró que el 73.8% son de hábitos nocturnos. El ganado vacuno de libre pastoreo mostró una abundancia que podría tener impactos en el ambiente natural y el nivel de recursos disponibles para la fauna silvestre de la región.Palabras clave: Cámaras-trampa, Carnívora, Oaxaca, patrón de actividad, Tututepec.ABSTRACTCarnivorous mammals play an important role on the community structure, however information gaps exist on their current situation debt to their nocturnal habits, evasive behavior and low population densities. In this study, we used camera traps to obtain records of mammal carnivores and their potential prey in four localities in the coastal central of Oaxaca, Mexico. The study was conducted from September 2009 to August 2010, with a total sampling effort of 1,012 trap/days. We obtained 160 independent photographs records of eights carnivorous mammal species and regarding potential prey we obtained five mammals species, two reptile species and two groups (birds and mice). According with the two Relative Abundance Index obtained Spilogale pygmaea, Urocyon cinereoargenteus y Nasua narica were the most abundant carnivorous mammals while that Didelphis virginiana, Dasypus novemcinctus and the mice group were the most abundant potential prey. The activity patterns of the species showed that 73.8% of them are nocturnal. The free range cattle showed an abundance that could have impacts in the natural environment and the level of resources available for the wildlife in the region.Key words: Camera-traps, Carnivora, Oaxaca, activity patterns, Tututepec.

scholarly journals Diversidad y patrones de actividad de mamíferos medianos y grandes en la Reserva de la Biosfera La Encrucijada, Chiapas, México

2018 ◽  
Vol 66 (2) ◽  
pp. 634
Author(s):  
Julio C. Hernández Hernández ◽  
Cuauhtémoc Chávez ◽  
Rurik List
Keyword(s):  
Activity Patterns ◽  
Biosphere Reserve ◽  
Abundant Species ◽  
Camera Traps ◽  
Sampling Effort ◽  
Large Mammals ◽  
Dasypus Novemcinctus ◽  
Nasua Narica ◽  
The Pacific ◽  
Dry Seasons

Diversity and activity patterns of medium and large mammals in La Encrucijada Biosphere Reserve, Chiapas, Mexico. In Mexico, wetlands occupy an important portion of the country, among them, mangroves are particularly diverse. La Encrucijada Biosphere Reserve (ENBIRE) is a coastal ecosystem of mangrove located along the Pacific Coastal Plain in the Southwestern portion of Chiapas state. The ENBIRE mangroves are among the most important of the American Pacific Coast, highlighting the role they play in the maintenance of the community of mammals on the coast of the state. There are few studies in Mexico related to the mammals associated with these ecosystems, our aim was to estimate the diversity and activity patterns of medium and large mammals in the ENBIRE. Sampling was conducted from August 2015 to August 2016 using camera traps. We obteined 1 851 independent photographs records, with a total sampling effort of 5 400 trap-days. Nineteen species of mammals were registered belonging to 15 families and seven orders, and five species were new records to the area. Six species present are listed, two as endangered and four as threatened. Interpolation and extrapolation analyzes showed an asymptotic trend in the curves for the rainy and dry seasons. The coverage of the sample for both seasons was 99.9 % and 99.8 %, respectively, indicating that both cases were a representative sample. According to the relative abundance index obtained, the most abundant species were Procyon lotor (IAR = 4.35), Nasua narica (IAR = 3.91), Philander opossum (IAR = 2.04), Cuniculus paca (IAR = 1.89), Didelphis marsupialis (IAR = 1.67) and Dasypus novemcinctus (IAR = 1.02). In terms of patterns of activity C. paca, P. opossum, D. marsupialis and D. novemcinctus were primarily nocturnal; P. lotor showed a tendency towards nocturnal habits but was also recorded during the day; N. narica was mainly diurnal. This information can be useful to the creation of management programs and the conservation of medium and large mammals in the ENBIRE, especially for species at risk. Rev. Biol. Trop. 66(2): 634-646. Epub 2018 June 01. 

scholarly journals Hunter-gatherers in context: Mammal community composition in a northern Tanzania landscape used by Hadza foragers and Datoga pastoralists

2020 ◽  
Author(s):  
Brian Wood ◽  
Riccardo S. Millar ◽  
Nicholas Wright ◽  
Joshua Baumgartner ◽  
Hannah Holmquist ◽  
...  
Keyword(s):  
Community Composition ◽  
Camera Traps ◽  
Sub Saharan Africa ◽  
Sampling Effort ◽  
Mammal Species ◽  
Hunter Gatherers ◽  
Wild Mammals ◽  
Northern Tanzania ◽  
Mammal Community ◽  
Species Specific

In many regions of sub Saharan Africa large mammals occur in human-dominated areas, yet their community composition and species-specific densities have rarely been described in areas occupied by traditional hunter-gatherers and pastoralists. Surveys of mammal populations in such areas provide important measures of biodiversity and provide ecological context for understanding hunting practices. Using a sampling grid centered on a Hadza hunter-gatherer camp and covering 36 km² of semi-arid savannah in northern Tanzania, we assessed mammals using camera traps (n = 19 stations) for c. 5 months (2,182 trap nights). In the study area (Tli’ika in the Hadza language), we recorded 36 wild mammal species, resembling a near complete mammal community. Rarefaction curves suggest that sampling effort was sufficient to capture mammal species richness. Species-specific densities were estimated using a random encounter model and site- and species’ body mass- specific estimates of the area sampled at each camera; confidence intervals were estimated using bootstrapping. Point estimates of densities varied by c. four orders of magnitude, from 0.003 ind./km² (African wild dog) to 27.5 ind./km² (Kirk’s dik dik). Densities of livestock (cattle, donkey, sheep and goat) were high, particularly when estimated using directly observed herd sizes. Cumulative biomass density of herbivorous livestock species exceeded that of all wild mammals by a factor of 3.3-38.7. We compare our study’s data to camera trap rates recorded in a fully protected area of northern Tanzania with similar precipitation (Lake Manyara National Park), revealing that abundance indices of most wildlife species in Tli’ika were much lower. We discuss how these data inform studies of Hadza hunting and models of hunter-gatherer foraging ecology and diet.

scholarly journals Checklist of large and medium-bodied mammals from four areas of Tocantins state, Central Brazil

2020 ◽  
Vol 15 (3) ◽  
pp. 683-700
Author(s):  
Michelle Pinto Mercês ◽  
Kleiton Rodolfo Alves-Silva ◽  
Wlainer Silva De Paula
Keyword(s):  
The State ◽  
Camera Traps ◽  
Sampling Effort ◽  
Mammal Species ◽  
Central Brazil ◽  
Cerrado Savanna ◽  
Tapirus Terrestris ◽  
Available Information ◽  
First Time ◽  
Speothos Venaticus

The state of Tocantins is located in Central Brazil. The northern extreme of this state corresponds to the southeastern portion of the Amazon biome, while it is covered primarily by Cerrado savanna, as well as the transition area between these two biomes. We provide a checklist of large- and medium-bodied mammals from four localities in Tocantins, update the list of species for the state, and compile the available information on their geographic distribution. We surveyed mammals at four sites during different periods (between 2010 and 2018), using camera traps and opportunistic observations. In spite of the differences in the sampling effort among the sites, we recorded 42 mammal species belonging to eight orders and 20 families. Our list includes rare and threatened species, such as the jaguar (Panthera onca), the giant anteater (Myrmecophaga tridactyla), and the lowland tapir (Tapirus terrestris). One species (Galictis cuja) was recorded in the state for the first time and the known range distribution of two others (Speothos venaticus and Alouatta caraya) was updated.  

scholarly journals MAMÍFEROS DE MÉDIO E GRANDE PORTE NA ÁREA DE PROTEÇÃO AMBIENTAL MUNICIPAL DO RIO VERMELHO EM SANTA CATARINA, SUL DO BRASIL

2021 ◽  
Vol 25 (03) ◽  
pp. 722-737
Author(s):  
Marcelo Hübel ◽  
◽  
Izar Aximoff ◽  
Antonio Carlos de Freitas ◽  
Clarissa Rosa ◽  
...  
Keyword(s):  
Protected Areas ◽  
Atlantic Forest ◽  
Sustainable Use ◽  
Camera Traps ◽  
Lepus Europaeus ◽  
Sampling Effort ◽  
Large Mammals ◽  
Mammal Species ◽  
Santa Catarina ◽  
Santa Catarina State

MEDIUM AND LARGE MAMMALS IN RIO VERMELHO MUNICIPAL ENVIRONMENTAL PROTECTION AREA, SANTA CATARINA, SOUTHERN BRAZIL: Most studies on medium and large mammals in the Brazilian Atlantic Forest are carried out in areas under full protection (as parks and biological reserves). Considering the continuing threats that the forest remnants are suffering, it is essential to carry out mammal surveys in protected areas for sustainable use. In order to evaluate the species richness and the relative frequency of medium and large mammals in the área de proteção ambiental municipal do Rio Vermelho – APARV (northern Santa Catarina state), methodologies of direct visualization and camera traps were used. The study was conducted from the beginning of 2015 to the end of 2019. In Santa Catarina state, there is only one study which sampling effort is comparable to the present one (7300 night-trap). Thirty-three native mammal species and two alien species (Canis familiaris and Lepus europaeus) were found. The species accumulation curve tended to stabilize at the beginning of the third year. Three species were responsible for more than half of the photographic records (Cerdocyon thous, Eira barbara and Procyon cancrivorus). In total, 33.3% of the species are classified in some category of threat, and three of these species are among the less recorded in Santa Catarina state (Tayassu pecari, Tapirus terrestris and Mazama nana). Our survey added 18 new occurrences to the APARV management plan. Only two of the 18 mammal surveys carried out previously in the Santa Catarina state recorded more species than our study. This is the second survey which was carried out in protected areas for sustainable use in Santa Catarina state. Our study contributes to the important knowledge that can be used in conservation measures. In this way, the APARV plays a fundamental role for the conservation of the Atlantic Forest mammals, constituting an important area favoring the population movements of mammals.

scholarly journals El jaguar Panthera onca (Carnivora: Felidae) en la Reserva de la Biosfera “El Cielo”, Tamaulipas, México

2016 ◽  
Vol 64 (4) ◽  
Author(s):  
Rogelio Carrera-Treviño ◽  
Ivan Lira-Torres ◽  
Luis Martínez-García ◽  
Martha López-Hernández
Keyword(s):  
Puma Concolor ◽  
Activity Patterns ◽  
Biosphere Reserve ◽  
Domestic Animals ◽  
Didelphis Virginiana ◽  
Camera Trapping ◽  
Potential Prey ◽  
Panthera Onca ◽  
Local Residents ◽  
El Cielo Biosphere Reserve

Information on the ecology of jaguars (Panthera onca) in “El Cielo” Biosphere Reserve in Tamaulipas, Mexico is scant and limited to anecdotic records in a handful of publications. The objectives of our study were to: a) determine population density and structure of jaguars, b) compare their activity patterns with that of pumas (Puma concolor), c) ascertain potential prey relative abundance, and d) evaluate local resident’s perception on loss of domestic animals due to jaguar predation. Between April 2013 and April 2014 we conducted camera trapping in Gomez Farias Township with a total sampling effort of 8 580 camera trap days. Besides, we completed 136 semi-structured interviews among local residents of Gomez Farias and Llera Townships to gather information on domestic animal losses attributed to jaguars and other carnivores. We identified eight different jaguar individuals during a complete year of camera-trapping, composed of four adult females, one juvenile female, two adult males and one juvenile male. We estimated a jaguar density of 5.9 ± 1.3 jaguars/100 km². Activity patterns for jaguars and pumas were similar as both were nocturnal and crepuscular in nature. The most abundant potential prey species for jaguars in the study site were Crax rubra, Cuniculus paca, Mazama temama, Odocoileus virginianus and Didelphis virginiana; while the rarest were Mephitis macroura and Procyon lotor. Interview results suggested that chickens, dogs, and house cats were the most consumed domestic animals from all reported losses by local residents (n= 107). This study represents the first attempt to describe jaguar ecology in “El Cielo” Biosphere Reserve; however, there is a need of additional monitoring efforts to determine the current status of jaguars in a larger area in order to establish conservation strategies. Finally, this jaguar population may have an important role in maintaining the species in the Sierra Madre Oriental biological corridor connecting populations in Nuevo Leon and San Luis states in Northeastern Mexico.

scholarly journals Daily activity pattern of pumas (Puma concolor) and their potential prey in a tropical cloud forest of Colombia

2021 ◽  
pp. 267-278
Author(s):  
J. C. Cepeda–Duque ◽  
B. Gómez–Valencia ◽  
S. Alvarez ◽  
D. R. Gutiérrez–Sanabria ◽  
D. J. Lizcano
Keyword(s):  
Daily Activity ◽  
Puma Concolor ◽  
Population Control ◽  
Cloud Forest ◽  
Activity Patterns ◽  
Species Conservation ◽  
Camera Traps ◽  
Foraging Efficiency ◽  
Potential Prey ◽  
Top Predators

Ecosystems in the northern Andes face unprecedented habitat loss. Pumas are the top predators in the region and exert key ecological functions, such as population control and resource facilitation. However, little is known about the temporal niche of the species or its effects on behaviour of prey in the tropics. We hypothesized that there is a link between the activity patterns of pumas and their prey in a cloud forest of the Central Andes of Colombia. We installed 61 camera traps to estimate the degree of overlap between the daily activity curves of pumas and seven potential prey species, using conditional kernel density functions. Pumas, armadillos, mountain pacas, and white–eared opossums were mainly nocturnal, with little crepuscular activity and high temporal overlap. Central American agouti, mountain coati, little red brocket deer, and Cauca guan displayed a predominantly diurnal activity and temporal partitioning with pumas. As opportunistic predators, pumas were able to maximize foraging efficiency by preying on the crepuscular and nocturnal species. Conservation of this highland predator will largely depend on the suitable management of its native prey.

Activity patterns in sympatric carnivores in the Nahuelbuta Mountain Range, southern-central Chile

Mammalia ◽  
2017 ◽  
Vol 81 (5) ◽  
Author(s):  
Alfredo H. Zúñiga ◽  
Jaime E. Jiménez ◽  
Pablo Ramírez de Arellano
Keyword(s):  
Species Interactions ◽  
Activity Patterns ◽  
Point Of View ◽  
Camera Traps ◽  
Sampling Effort ◽  
Mountain Range ◽  
Central Chile ◽  
Biological Communities ◽  
Southern Central ◽  
Sympatric Carnivores

AbstractSpecies interactions determine the structure of biological communities. In particular, interference behavior is critical as dominant species can displace subordinate species depending on local ecological conditions. In carnivores, the outcome of interference may have important consequences from the point of view of conservation, especially when vulnerable species are the ones suffering displacement. Using 24 baited camera traps and a sampling effort of 2821 trap nights, we examined the activity patterns and spatial overlap of an assemblage of five sympatric carnivores in the Nahuelbuta Mountain Range, in southern-central Chile. In this forested landscape we found predominantly nocturnal activity in all species, but not for the puma (

scholarly journals Monitoring program for mammals in a protected area of Colombia

2017 ◽  
Vol 22 (1) ◽  
pp. 9
Author(s):  
Germán Jiménez ◽  
Natalia López-Cepeda ◽  
Andrea Delgado ◽  
Ana María Guevara ◽  
Laura Lozano
Keyword(s):  
Activity Patterns ◽  
Monitoring Program ◽  
Camera Traps ◽  
Domestic Dogs ◽  
Sampling Effort ◽  
Wild Mammals ◽  
First Semester ◽  
Independent Events ◽  
Set Up ◽  
The Impact

<p>Between the second semester of 2009 and the first semester of 2011, camera traps were set up in conserved and disturbed habitats in the Otún Quimbaya Flora and Fauna Sanctuary. From a sampling effort of 2,066 camera-days, 673 photographs of 157 independent events were obtained for eight species of wild mammals and a domestic one. Their activity patterns were mainly nocturnal even for those species reported as diurnal. The impact of human interference and exotic species was evident for two species: <em>Tapirus pinchaque</em> and <em>Cerdocyon thous</em>. The former was observed below its altitudinal range with activity patterns mainly crepuscular and nocturnal. The second was observed in the same habitats where domestic dogs were found, with activity patterns mainly crepuscular and nocturnal. These findings suggest that both species have altered their activity patterns. Actions must be focused on decreasing the interaction of these mammals with humans and domestic dogs.</p>

scholarly journals Cacería de mamíferos medianos en cafetales del centro de Veracruz, México

2010 ◽  
Vol 26 (2) ◽  
Author(s):  
Liliana Tlapaya ◽  
Sonia Gallina
Keyword(s):  
Procyon Lotor ◽  
Didelphis Virginiana ◽  
Sylvilagus Floridanus ◽  
Urocyon Cinereoargenteus ◽  
Dasypus Novemcinctus

El presente trabajo analiza la cacería de mamíferos medianos en cafetales del centro de Veracruz, México, enfocado en dos zonas: Huatusco y Teocelo-Coatepec, registrando datos por medio de entrevistas estructuradas aplicadas a cazadores activos en las zonas de estudio. Los cafetales son agroecosistemas que presentan un sistema de manejo bajo sombra de árboles, que permiten mantener una biodiversidad considerable de mamíferos medianos. La colecta de datos se realizó durante los meses de enero a mayo del 2006 en los cafetales muestreados como parte de un proyecto más amplio titulado BIOCAFE. Se aplicaron un total de 77 entrevistas estructuradas que nos permitieron conocer qué mamíferos son cazados, los métodos utilizados para cazarlos, el uso que les dan, además de inferir cuantos animales se extraen por año y que biomasa representa. Los resultados de las entrevistas muestran que de las 24 especies registradas de mamíferos medianos, son cinco especies las más cazadas en ambas zonas en proporciones significativas: armadillo (Dasypus novemcinctus), tlacuache (Didelphis virginiana), conejo (Sylvilagus floridanus), mapache (Procyon lotor) y zorra (Urocyon cinereoargenteus). De las 16 especies cazadas, el armadillo es la presa de mayor demanda y la más aprovechada en ambas zonas. La estimación de biomasa extraída al año fue de 194 kg/cazador para la zona de Teocelo-Coatepec y de 174 kg/cazador en la zona Huatusco. En cuanto a los métodos más comúnmente utilizados para cazar son; arma de fuego (53%), seguido del uso de perros (41%) y por último la arreada (33%). La presión de cacería fue mucho mayor en los cafetales de la zona de Teocelo-Coatepec por haber una mayor densidad poblacional humana. La cacería que se practica en ambas zonas es completamente ilegal, es por esto que es necesario realizar acciones para promover el manejo y la conservación de las especies, así como al desarrollo de la comunidad en el área de estudio.

scholarly journals Checklist of medium-sized to large mammals of Campos Gerais National Park, Paraná, Brazil

Check List ◽  
2018 ◽  
Vol 14 (5) ◽  
pp. 785-799
Author(s):  
Alan Deivid Pereira ◽  
Sergio Bazilio ◽  
Mário Luís Orsi
Keyword(s):  
National Park ◽  
Research Work ◽  
Camera Traps ◽  
Sampling Effort ◽  
Large Mammals ◽  
Current Analysis ◽  
Mammal Species ◽  
Domestic Species ◽  
Active Research ◽  
Brazilian Atlantic Rainforest

Campos Gerais National Park lies within the Brazilian Atlantic Rainforest, a biodiversity hotspot and a priority for conservation. Current analysis, featuring a list of large and medium-sized mammal species in the park, was conducted between July 2013 and July 2014 and between May 2016 and April 2017. With a 780-hour sampling effort in active research and 157,516 hours in camera traps, 31 species of 17 families and 8 orders were recorded. Furthermore, 42% of recorded mammals in the park proved to be endangered species at state, national, or international levels. Two exotic and 1 domestic species were reported in the park. Results contribute towards an in-depth knowledge of the fauna in south Brazil and may help in further research work and management, complying with conservation proposals in the biodiversity of the Campos Gerais region in the state of Paraná, Brazil.

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