scholarly journals Medium and large-sized mammals of a private protected wetland in the Cerrado-Amazon biological corridor, Brazil

2023 ◽  
Vol 83 ◽  
Author(s):  
D. S. Silva ◽  
M. V. Ribeiro ◽  
F. H. Soares

Abstract Brazil is the world's richest country in biodiversity, including mammal species. In the Brazilian Cerrado biome, mammalian diversity is vast, with about 251 species, 32 of them are endemic and 22 listed as threatened species. In this work, we investigated species diversity of medium- and large-sized mammals in the private protected area RPPN Pontal do Jaburu (RPPN-PJ) and its surroundings, which is a flooded area located in an important biological corridor in the Cerrado-Amazon ecotone zone, a priority area for biodiversity conservation in Brazil. We used camera-trapping, active search (night and day), and track survey during dry season (Apr – Aug 2016). We recorded 29 mammal species, being the Carnivora order the most representative with 11 species. Regarding threat status, 35.7% of the recorded species were listed as threatened in Brazil and 32.1% worldwide. We highlight the high relative frequency of threatened species records such as Tapirus terrestris, Panthera onca, Blastocerus dichotomus, Pteronura brasiliensis, Priodontes maximus, and other, as well as the presence of the newly described aquatic mammal species Inia araguaiaensis. We stress the importance of RPPN-PJ and its surroundings for mammal conservation, which include complex habitats (wetlands) located in an important ecotone zone.

2011 ◽  
Vol 11 (3) ◽  
pp. 237-251 ◽  
Author(s):  
Robert Stuart Alexander Pickles ◽  
Niall Patrick McCann ◽  
Ashley Peregrine Holland

We report the results of a short expedition to the remote headwaters of the River Rewa, a tributary of the River Essequibo in the Rupununi, Southern Guyana. We used a combination of camera trapping, mist netting and spot count surveys to document the mammalian and avian diversity found in the region. We recorded a total of 33 mammal species including all 8 of Guyana's monkey species as well as threatened species such as lowland tapir (Tapirus terrestris), giant otter (Pteronura brasiliensis) and bush dog (Speothos venaticus). We recorded a minimum population size of 35 giant otters in five packs along the 95 km of river surveyed. In total we observed 193 bird species from 47 families. With the inclusion of Smithsonian Institution data from 2006, the bird species list for the Rewa Head rises to 250 from 54 families. These include 10 Guiana Shield endemics and two species recorded as rare throughout their ranges: the harpy eagle (Harpia harpyja) and crested eagle (Morphnus guianensis).


2014 ◽  
Vol 104 (1) ◽  
pp. 81-87 ◽  
Author(s):  
Cintia M. Togura ◽  
Darren Norris ◽  
Fernanda Michalski

O estudo objetivou avaliar a riqueza e composição de vertebrados de médio e grande porte em latrinas ativas e inativas de ariranhas [Pteronura brasiliensis (Gmelin, 1788)], em uma Unidade de Conservação de Uso Sustentável na Amazônia Oriental Brasileira. O estudo foi realizado em 45 latrinas ao longo de 230 km nos rios Falsino e Araguari (0°55'N, 51°35'W), sendo que desse total, 24 apresentaram fezes frescas e 21 fezes velhas de ariranhas. De julho a novembro de 2012, cada latrina foi monitorada com uma armadilha fotográfica programada para operar por 24 horas. O esforço de campo resultou em 458,8 armadilhas/dia, sendo 247,5 armadilhas/dia em latrinas com fezes frescas e 211,3 armadilhas/dia com fezes velhas. Foram obtidos registros de 22 espécies de vertebrados. A maior parte das espécies registradas foram mamíferos (n = 13), seguida por aves (n = 6), e répteis (n = 3). As espécies mais frequentemente fotografadas foram paca [Cuniculus paca (Linnaeus, 1766); n = 21], jaguatirica [Leopardus pardalis (Linnaeus, 1758); n =11], juriti-pupu (Leptotila verreauxi Bonaparte, 1855; n = 8), ariranha [Pteronura brasiliensis (Gmelin, 1788); n = 7], e anta [Tapirus terrestris (Linnaeus, 1758); n = 6], que foram responsáveis por 55,8% de todos os registros. A maior parte dos registros (69,5%) foram obtidos em latrinas com fezes frescas e o número de espécies foi maior (n = 19) do que os registrados em latrinas com fezes velhas (n = 15). No entanto, a dissimilaridade entre a comunidade de vertebrados entre latrinas com fezes frescas e velhas não diferiu. A média de visitação em latrinas com fezes frescas foi ligeiramente superior do que em latrinas com fezes velhas, embora essa diferença tenha sido apenas marginalmente significativa. Entretanto, houve uma diminuição no número de registros de felinos [Leopardus pardalis, Leopardus wiedii (Schinz, 1821) e Panthera onca (Linnaeus, 1758)], marginalmente significativo em latrinas com fezes frescas. Dessa forma, a presença de fezes frescas em latrinas ativas de ariranhas parecem aumentar o registro de espécies de vertebrados, sendo especialmente importante para os grupos que apresentam guilda trófica similar.


Check List ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 2098 ◽  
Author(s):  
Camilo Sánchez-Giraldo ◽  
Juan M. Daza

The northern part of the Cordillera Central in Colombia has been recognized as a region of particular relevancy in vertebrates biodiversity. We provide a list of non-volant mammal species in Jaguas and San Carlos, two protected areas around hydroelectric projects on the eastern slope of the Cordillera Central in Antioquia. As part of an ongoing monitoring project, we obtained records from a standardized survey in 2011 and sporadic surveys in 2014–2015 (capture and non-invasive methods), and from the revision of voucher specimens. From 132 records we generated a list of 34 species, 22 species in Jaguas and 27 in San Carlos, belonging to 20 families and seven orders. We record the occurrence of four endemic and four threatened species, including the endemic and Endangered Tamarin, Saguinus leucopus, highlighting the importance of these protected areas for mammal conservation in this highly diverse region. 


2020 ◽  
Vol 15 (3) ◽  
pp. 683-700
Author(s):  
Michelle Pinto Mercês ◽  
Kleiton Rodolfo Alves-Silva ◽  
Wlainer Silva De Paula

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.  


Author(s):  
Victor Cameron ◽  
Anna L. Hargreaves

AbstractHigh-latitude countries often contain the polar range edge of species that are common farther south. The more peripherally a species occurs in a country, the smaller its national range will be and the more its national range will consist of range-edge populations, which are often predicted to be relatively small, isolated, and unproductive. Together, this may focus national conservation efforts toward peripheral species whose global conservation value is controversial. However, if range-edge taxa occur where overall diversity is also high, there would be fewer trade-offs in protecting them. Using 153 of the 158 terrestrial mammal species in Canada, we tested how species’ distributions relate to their national conservation status and total mammal richness. Half of ‘Canadian’ mammals had <20% of their global range in Canada. Range area in Canada was strongly associated with national threat status; mammals considered ‘at-risk’ in Canada had 42% smaller Canadian ranges than mammals considered secure. However, after accounting for range area, being more peripheral (smaller proportion of global range in Canada) did not increase the likelihood that a taxon was considered at-risk. We overlaid the 153 maps to calculate mammal diversity across Canada, divided into 100×100 km grid cells. We found that hotspots of at-risk mammals (cells with >4 at-risk taxa) and hotspots of range-edge mammals (cells with >12 taxa with ≤20% of their range in Canada) were about twice as species rich as non-hotspot cells, containing up to 44% of Canadian mammal diversity per grid-cell. Our results suggest that protecting areas with the most at-risk or range-edge mammals would simultaneously protect habitat for many species currently deemed secure.


2008 ◽  
Vol 14 (4) ◽  
pp. 244 ◽  
Author(s):  
Joanne Ocock

Threatened species' lists have been consistently reviewed as easily misused, inappropriately applied, counterproductive, and reflecting changes in knowledge more often than changes in threat status (Burgman, 2002; de Grammont and Cuaron, 2006; Possingham et al., 2002; Seminoff and Shanker, 2008). However, with limited resources to deal with endangered species, effective conservation decision-making needs a means of determining where priorities lie. The EDGE list of the world's most ?Evolutionary Distinct? and ?Globally Endangered? amphibians ranks New Zealand's endemic Archey's Frog Leiopelma archeyi at the top of its list (www.edgeofexistence.org/ amphibians/top_100.php). What role should this ranking or any other threatened species list play in determining conservation priorities in New Zealand?


Check List ◽  
2020 ◽  
Vol 16 (4) ◽  
pp. 939-950
Author(s):  
Maxwell R. W. Beal ◽  
Parker J. Matzinger ◽  
Guido Saborío-R. ◽  
Jonathan Noguera Bristan ◽  
Erik R. Olson

Piedras Blancas National Park, in southern Costa Rica, is an important component of two biological corridors connecting the Osa Peninsula (Corcovado National Park) and La Amistad International Park. Understanding the mammal community composition of Piedras Blancas will provide baseline data to evaluate the success of conservation efforts. We used camera traps and opportunistic observations to describe the medium-sized and large mammals of the park. We deployed camera traps for 1,440 trap nights (2016-2018). We detected 19 mammal species from seven orders and 13 families. Five species are globally threatened: Leopardus wiedii (Schinz, 1821), Saimiri oerstedii (Linnaeus, 1758), Ateles geoffroyi (Kuhl, 1820), Alouatta palliata (Gray, 1849), and Tapirus bairdii (Gill, 1865). We did not detect two locally threatened species, Panthera onca (Linnaeus, 1758) and Tayassu pecari (Link, 1795). Our research highlights a need for critical conservation work within the proposed biological corridor to support Costa Rica&rsquo;s most threatened wildlife.


Check List ◽  
2009 ◽  
Vol 5 (3) ◽  
pp. 577 ◽  
Author(s):  
Flávia Soares Pessôa ◽  
Thiago Carvalho Modesto ◽  
Hermano Gomes Albuquerque ◽  
Nina Attias ◽  
Helena De Godoy Bergallo

The Atlantic Forest is recognized as a global hotspot for having one of the highest rates of endemism and biodiversity. Its portion in the state of Rio de Janeiro is extremely fragmented and reduced. The present study seeks to get information on the non-volant mammals of RPPN Rio das Pedras in municipality of Mangaratiba, state of Rio de Janeiro. The rapid mammal's survey was accomplished by the use of pitfalls, live traps, transects and camera traps. We recorded 23 non-volant species that represent 13.1 % of Rio de Janeiro’s terrestrial mammal species. Among the recorded species, five are endemic of the Atlantic Forest and three are in the state list of threatened or presumably threatened species. The area presents great mammal richness, but the hunting activity and the  presence of exotic species may represent a threat to the local biodiversity and should be controlled.


2015 ◽  
Vol 37 (2) ◽  
pp. 212 ◽  
Author(s):  
John L. Read ◽  
Matthew J. Ward ◽  
Katherine E. Moseby

Optimised detection and sensitivity of fauna-monitoring programs is essential for the adaptive management of threatened species. We describe the influence of trap type, trapping duration and timing on the detection rates of small vertebrates, in particular the nationally endangered sandhill dunnart (Sminthopsis psammophila) in its two primary populations in South Australia. A total of 118 and 155 sandhill dunnarts were captured from the Middleback and Yellabinna regions, respectively, from five trapping sessions between 2008 and 2012. Wide deep pitfall traps (225 mm diameter × 600–700 mm deep) captured significantly more adult sandhill dunnarts than shorter, narrower pitfalls (150 mm diameter × 500 mm deep) or Elliott traps. Deep pitfall traps also captured significantly more hopping mice (Notomys mitchellii) but smaller mammal species were equally trapable in deep or short pitfall traps. Capture rates declined through successive nights of trapping. Capture rates of sandhill dunnarts were greatest in one study region when the moon illumination was less than 40% compared with fuller moon phases but were not affected by moon illumination in the other study region. The results suggest that higher capture rates of sandhill dunnarts will be achieved when using wide, deep pitfall traps on dark nights during the first two nights of trapping. Trapping in summer detected more juvenile sandhill dunnarts than trapping in winter.


2013 ◽  
Vol 30 (6) ◽  
pp. 630-638 ◽  
Author(s):  
Artur Andriolo ◽  
Ubiratan Piovezan ◽  
Mateus J.R. Paranhos da Costa ◽  
Hermógenes A. Torres ◽  
Alexandre Vogliotti ◽  
...  

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