scholarly journals Mammals recorded in isolated remnants of Atlantic Forest in southern Goiás, Brazil

2018 ◽  
Vol 19 (1) ◽  
Author(s):  
Analice Calaça ◽  
Marluci Fachi ◽  
Diego Afonso Silva ◽  
Seixas Rezende Oliveira ◽  
Fabiano Rodrigues de Melo
Keyword(s):  
Species Richness ◽  
Habitat Fragmentation ◽  
Atlantic Forest ◽  
Mammalian Species ◽  
Camera Trapping ◽  
Line Transect ◽  
Brazilian Atlantic Forest ◽  
Mammal Species ◽  
Cerrado Savanna

Abstract: Habitat fragmentation is one of the principal causes of the decline of species worldwide, and the Brazilian Atlantic Forest and Cerrado savanna biomes are among the most severely affected by this process. While highly fragmented, remnants of Atlantic Forest can still be found within the Cerrado domain of southern Goiás, where previous studies have revealed high levels of biodiversity. To inventory the mammalian species that occur in the region, two fragments of semideciduous Atlantic Forest were sampled between 2011 and 2016, using line transect surveys and camera trapping. A total of 1016 records were obtained of 30 mammal species, of which eleven are under some threat of extinction. The species richness recorded on this study was similar to or higher than the values reported from other areas of Goiás, which reinforces the importance of the maintenance of these remnants, located in private properties, for the conservation of the region's mammals.

scholarly journals Habitat fragmentation in the Brazilian Atlantic Forest is associated with erosion of frog immunogenetic diversity and increased fungal infections

2021 ◽  
Author(s):  
Anat Belasen ◽  
Kevin Amses ◽  
Rebecca Clemons ◽  
Guilherme Becker ◽  
Felipe Toledo ◽  
...  
Keyword(s):  
Habitat Fragmentation ◽  
Atlantic Forest ◽  
Batrachochytrium Dendrobatidis ◽  
Fungal Infections ◽  
Emerging Infectious Diseases ◽  
Genetic Erosion ◽  
Population Level ◽  
Brazilian Atlantic Forest ◽  
Frog Species ◽  
Mhc Iib

Habitat fragmentation and infectious disease threaten amphibians globally, but little is known about how these two threats interact. In this study, we examined the effects of Brazilian Atlantic Forest habitat fragmentation on frog genetic diversity at an immune locus known to affect disease susceptibility in amphibians, the MHC IIB locus. We used a custom high-throughput assay to sequence the MHC IIB locus across six focal frog species in two regions of the Atlantic Forest. We also used a molecular assay to quantify infections by the fungal pathogen Batrachochytrium dendrobatidis (Bd). We found that habitat fragmentation is associated with genetic erosion at the MHC IIB locus, and that this erosion is most severe in frog species restricted to intact forests. Significant Bd infections were recovered only in one Atlantic Forest region, potentially due to the relatively higher elevation. In this region, forest specialists showed an increase in both Bd prevalence and loads in fragmented habitats. We also found that reduced population-level MHC IIB diversity was associated with increased Bd infection risk. On the individual-level, MHC IIB heterozygotes (by allelic genotype as well as supertype) exhibited a reduced risk of Bd infection. Our results suggest that habitat fragmentation increases infection susceptibility in amphibians, mediated at least in part through loss of immunogenetic diversity. Our findings have implications for the conservation of fragmented populations in the face of emerging infectious diseases.

scholarly journals Habitat fragmentation affects individual condition: evidence from small mammals of the Brazilian Atlantic Forest

2018 ◽  
Vol 99 (4) ◽  
pp. 936-945 ◽  
Author(s):  
Ana Cláudia Delciellos ◽  
Camila dos Santos de Barros ◽  
Jayme Augusto Prevedello ◽  
Mariana Silva Ferreira ◽  
Rui Cerqueira ◽  
...  
Keyword(s):  
Habitat Fragmentation ◽  
Atlantic Forest ◽  
Small Mammals ◽  
Brazilian Atlantic Forest ◽  
Individual Condition

scholarly journals Potential mammalian species for investigating the past connections between Amazonia and the Atlantic Forest

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0250016
Author(s):  
Arielli Fabrício Machado ◽  
Camila Duarte Ritter ◽  
Cleuton Lima Miranda ◽  
Yennie Katarina Bredin ◽  
Maria João Ramos Pereira ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Mammalian Species ◽  
Genetic Data ◽  
Mammal Species ◽  
Habitat Occupancy ◽  
The Past ◽  
Forest Regions ◽  
Central Route ◽  
Dispersal Routes ◽  
Multiple Species

Much evidence suggests that Amazonia and the Atlantic Forest were connected through at least three dispersion routes in the past: the Eastern route, the central route, and the Western route. However, few studies have assessed the use of these routes based on multiple species. Here we present a compilation of mammal species that potentially have dispersed between the two forest regions and which may serve to investigate these connections. We evaluate the present-day geographic distributions of mammals occurring in both Amazonia and the Atlantic Forest and the likely connective routes between these forests. We classified the species per habitat occupancy (strict forest specialists, species that prefer forest habitat, or generalists) and compiled the genetic data available for each species. We found 127 mammalian species presently occurring in both Amazonia and the Atlantic Forest for which, substantial genetic data was available. Hence, highlighting their potential for phylogeographic studies investigating the past connections between the two forests. Differently from what was previously proposed, the present-day geographic distribution of mammal species found in both Amazonia and the Atlantic Forest points to more species in the eastern portion of the dry diagonal (and adjoining forested habitats). The Central route was associated with the second most species. Although it remains to be seen how this present-day geography reflects the paleo dispersal routes, our results show the potential of using mammal species to investigate and bring new insights about the past connections between Amazonia and the Atlantic Forest.

scholarly journals Effects of landscape modification on species richness patterns of fruit‐feeding butterflies in Brazilian Atlantic Forest

2019 ◽  
Vol 26 (2) ◽  
pp. 196-208 ◽  
Author(s):  
Jessie P. Santos ◽  
Thadeu Sobral‐Souza ◽  
Keith S. Brown ◽  
Maurício Humberto Vancine ◽  
Milton C. Ribeiro ◽  
...  
Keyword(s):  
Species Richness ◽  
Atlantic Forest ◽  
Brazilian Atlantic Forest ◽  
Landscape Modification ◽  
Richness Patterns

scholarly journals Exploring the Relationships between Key Ecological Indicators to Improve Natural Conservation Planning at Different Scales

Forests ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 32 ◽  
Author(s):  
Lu Zhang ◽  
Zhiyun Ouyang
Keyword(s):  
Species Richness ◽  
Ecosystem Services ◽  
Plant Diversity ◽  
Conservation Planning ◽  
Mammalian Species ◽  
Ecological Indicators ◽  
Fine Scale ◽  
Mammal Species ◽  
Vegetation Productivity ◽  
Key Indicators

Biodiversity, regulating ecosystem services (RES), and vegetation productivity are key indicators to instruct natural conservation planning. Decision makers often hope that ecosystems can be protected by focusing on certain key indicators, which requires an understanding of the relationships between the indicators. Using individual case studies, many have argued that these indicators commonly have significant relationships. However, these relationships at different spatial scales are unclear. Therefore, in this study, biodiversity and ecosystem services are modelled by the ecological niche model, the universal soil loss equation, and the equation of water balance in two study areas at different scales. The influence of vegetation productivity on the spatial pattern of other ecological indicators in the two areas is examined by a spatial lag model. The contributions of the driving factors on biodiversity distribution at both scales are identified by a boosted regression tree (BRT) model. The results showed that at the fine scale, the spatial correlations were strongest for species richness, especially mammalian species richness, and water retention. However, biodiversity had no significant relationship with vegetation productivity. In contrast, at a coarser scale, the correlation was stronger between plant diversity and regulating ecosystem services. In addition, plant diversity was significantly correlated with vegetation productivity. These differences between scales were controlled by various explanatory variables. At the fine scale, biophysical and climatic factors had the strongest effects on biodiversity distribution, while Net Primary Productivity (NPP) and ecoregion also had relatively high influences on biodiversity at the coarse scale. This demonstrates the critical importance of spatial scale in selecting conservation indicators. We suggest that rare mammalian species richness or flagship mammal species are suitable as conservation surrogates in fine-scale conservation planning. However, at a coarser scale, selecting vegetation patches with more rare plant species and high productivity for each ecoregion is a workable alternative method for conservation planning.

scholarly journals Non-volant mammals of Carlos Botelho State Park, Paranapiacaba Forest Continuum

2012 ◽  
Vol 12 (4) ◽  
pp. 198-208 ◽  
Author(s):  
Carlos Rodrigo Brocardo ◽  
Raisa Rodarte ◽  
Rafael da Silveira Bueno ◽  
Laurence Culot ◽  
Mauro Galetti
Keyword(s):  
Species Richness ◽  
Atlantic Forest ◽  
Protected Area ◽  
Lepus Europaeus ◽  
Mammalian Fauna ◽  
Mammal Species ◽  
Tayassu Pecari ◽  
Live Trapping ◽  
Mammal Conservation

The Atlantic Forest is one of the most studied Brazilian biomes in relation to its mammalian fauna. However, there is still a series of gaps of knowledge about the distribution and persistence of some of these species which prevents taking adequate conservation measures to better protect the mammals. In order to make the inventory of the non-volant mammalian fauna of the Carlos Botelho State Park (SP), we compiled data of camera trapping, diurnal census, track records, pitfall and live trapping collected over 8 years (2004-2012). We registered a total of 53 species, of which 12 are regionally threatened and one is an exotic species (Lepus europaeus), including the presence of most mammal species expected for the Paranapiacaba Forest Continuum. The high non-volant mammals species richness allied to the presence of threatened species, strengthen the role of this protected area for mammal conservation in the Atlantic Forest. Although, the local extinction of one species, Tayassu pecari, alert to the need for effective measures of protection.

scholarly journals Assessing the potential of environmental DNA metabarcoding for monitoring Neotropical mammals: a case study in the Amazon and Atlantic Forest, Brazil

2019 ◽  
Author(s):  
Naiara Guimarães Sales ◽  
Mariane da Cruz Kaizer ◽  
Ilaria Coscia ◽  
Joseph C. Perkins ◽  
Andrew Highlands ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Mammalian Species ◽  
Environmental Dna ◽  
Camera Trapping ◽  
Critically Endangered ◽  
Neotropical Mammals ◽  
Dna Metabarcoding ◽  
Biomonitoring Tool

AbstractThe application of environmental DNA (eDNA) metabarcoding as a biomonitoring tool has greatly increased in the last decade. However, most studies have focused on aquatic macro-organisms in temperate areas (e.g., fishes). We apply eDNA metabarcoding to detect the mammalian community in two high-biodiversity regions of Brazil, the Amazon and Atlantic Forest. We identified critically endangered and endangered mammalian species in the Atlantic Forest and Amazon respectively and found congruence with species identified via camera trapping in the Atlantic Forest. In light of our results, we highlight the potential and challenges of eDNA monitoring for mammals in these high biodiverse areas.

Sign in / Sign up

Export Citation Format

Share Document