EXPANSÃO DA ÁREA DE OCORRÊNCIA DO LOBO-GUARÁ, Chrysocyon brachyurus (CARNIVORA, CANIDAE) NO BIOMA AMAZÔNICO

Silva-Diogo, Odair; Goebel, Larissa Gabriela Araújo; Sousa, Marco Rodrigo de; Gusmão, Almério Câmara; Costa, Thatiane Martins da; Jesus, Anamélia de Souza; Cavalcante, Thiago

doi:10.4257/oeco.2020.2404.15

Cited by 6 publications

(4 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Forecasts of higher resilience of savanna biomes facing climate change (Anjos & de Toledo, 2018) and local observations of derived savannas across South America (Nobre, 2014) do not still account for the faunistic component of such a process. Yet, the replacement of forest by savanna mammals was already observed in rainforest fragments of the Atlantic Forest (Beca et al, 2017), as well as the expansion of the distribution of species typical of savannas into the Amazon and Atlantic rainforests (Bereta et al, 2017;Silva-Diogo et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Climate and land‐use change will lead to a faunal “savannization” on tropical rainforests

Sales

Galetti

Pires

2020

Global Change Biology

View full text Add to dashboard Cite

Climate change models forecast an increase in temperature and disruption of rainfall patterns across the globe (IPCC, 2014a). Such changes will redistribute biodiversity as we know it, with consequences for ecosystems worldwide (Pecl et al., 2017). Variation in the composition of communities is one of the first observed shifts (Dornelas et al., 2019), where some species are locally lost or replaced by newcomers (Urban, 2015). A particularly well-documented example is humid forest retreat at the expense of a drier and open-canopy vegetation in the Amazon (Marimon et al., 2014; Nobre, 2014). The warmer and drier climates observed in the Southeastern Amazon have favored plant lineages that are warm-adapted (Feeley et al., 2020) and dry-affiliated (Esquivel-Muelbert et al., 2019). These changes are expected to promote large-scale compositional shifts, with the gradual replacement of moist forests by seasonal forests and grasslands (Hirota et al., 2010; Lyra et al., 2016). By the end of the 21st century, climate change alone could lead to a reduction of 10%-50% in total humid tropical forest in the eastern Amazon (Lyra et al., 2016).

show abstract

Section: Discussionmentioning

confidence: 99%

Climate and land‐use change will lead to a faunal “savannization” on tropical rainforests

Sales

Galetti

Pires

2020

Global Change Biology

View full text Add to dashboard Cite

show abstract

“…Cerdocyon thous does not seem to be distributed within forests, and deforestation has favored its expansion in the Amazon biome. The same occurred with Chrysocyon brachyurus , (maned wolf), which expanded its extent of occurrence in southwestern Amazonia (see Silva-Diogo et al, 2020), precisely due to the conversion of forests into open areas in southeastern Amazonia (Silva-Diogo et al, 2020).…”

Section: Discussionmentioning

confidence: 82%

Wild canids and ecological traps, facing deforestation and climate change in the Amazon Rainforest

Oliveira

Trindade

Santos

et al. 2022

Preprint

View full text Add to dashboard Cite

Ecological traps occur when species choose to settle in lower quality habitats, even if this reduces their survival or productivity. This normally occurs in situations of drastic environmental changes, resulting, for example, from anthropogenic pressures. In the medium and long term, this could mean the extinction of the species. We investigated the dynamics of occurrence and distribution of three canid species (Atelocynus microtis, Cerdocyon thous, and Spheotos venaticus) related to human threats imposed on their habitats in the Amazon Rainforest. We analyzed the possible environmental thresholds for the occurrence of these species and confronted them with the future projections of climatic niches for each one. All three species will be negatively affected by climate change in the future, with losses of up to 91% of the suitable area of occurrence in the Brazilian Amazon. The occurrence of C. thous and S. venaticus has been positively influenced by anthropogenic open areas to the detriment of native environments, suggesting that these species are being attracted by ecological traps, which may put them at risk in the future in the Amazon Region. The A. microtis species is the most dependent on forest habitats, and thus the most significant threat would be forest loss. Using the canid species as a model, we could deeply investigate these ecological effects that can affect a large part of the Amazonian fauna in the current scenario. Considering the high degree of environmental degradation and deforestation in the Amazon Rainforest, the theory of ecological traps must be discussed at the same level that habitat loss is considered a decisive criterion of threat to biodiversity.

show abstract

“…Cerdocyon thous does not seem to be distributed within forests, and deforestation has favored its expansion in the Amazon biome. The same occurred with Chrysocyon brachyurus , (maned wolf), which expanded its extent of occurrence in southwestern Amazonia (see Silva‐Diogo et al, 2020), precisely due to the conversion of forests into open areas in southeastern Amazonia (Silva‐Diogo et al, 2020).…”

Section: Discussionmentioning

confidence: 88%

Wild canids and the ecological traps facing the climate change and deforestation in the Amazon Forest

Oliveira

Viana‐Júnior

Trindade

et al. 2023

Ecology and Evolution

View full text Add to dashboard Cite

Ecological traps occur when species choose to settle in lower-quality habitats, even if this reduces their survival or productivity. This happens in situations of drastic environmental changes, resulting from anthropogenic pressures. In long term, this could mean the extinction of the species. We investigated the dynamics of occurrence and distribution of three canid species (Atelocynus microtis, Cerdocyon thous, and Spheotos venaticus) considering human threats to their habitats in the Amazon Rainforest. We analyzed the environmental thresholds for the occurrence of these species and related to the future projections of climatic niches for each one. All three species will be negatively affected by climate change in the future, with losses of up to 91% of the suitable area of occurrence in the Brazilian Amazon. A. microtis appear to be more forest-dependent and must rely on the goodwill of decision-makers to be maintained in the future. For C. thous and S. venaticus, climatic variables and those associated with anthropogenic disturbances that modulate their niches today may not act the same way in the future. Even though C. thous is least dependent on the Amazon Forest; this species may be affected in the future due to the ecological traps. S. venaticus, can also undergo the same process, but perhaps more drastically due to the lower ecological plasticity of this species compared to C. thous. Our results suggest that the ecological traps may put these two species at risk in the future. Using the canid species as a model, we had the opportunity to investigate these ecological effects that can affect a large part of the Amazonian fauna in the current scenario. Considering the high degree of environmental degradation and deforestation in the Amazon Rainforest, the theory of ecological traps must be discussed at the same level as the habitat loss, considering the strategies for preserving the Amazon biodiversity. K E Y W O R D SAtelocynus microtis (short-eared dog), Cerdocyon thous (crab-eating fox), ecological traps, general linear model (GLM), niche modeling, Speothos venaticus (bush dog)

show abstract

EXPANSÃO DA ÁREA DE OCORRÊNCIA DO LOBO-GUARÁ, Chrysocyon brachyurus (CARNIVORA, CANIDAE) NO BIOMA AMAZÔNICO

Cited by 6 publications

References 15 publications

Climate and land‐use change will lead to a faunal “savannization” on tropical rainforests

Climate and land‐use change will lead to a faunal “savannization” on tropical rainforests

Wild canids and ecological traps, facing deforestation and climate change in the Amazon Rainforest

Wild canids and the ecological traps facing the climate change and deforestation in the Amazon Forest

Contact Info

Product

Resources

About