The Brazilian Caatinga protected areas: an extremely unbalanced conservation system

Teixeira, Marília Gomes; Venticinque, Eduardo Martins; Lion, Marília Bruzzi; Pinto, Míriam Plaza

doi:10.1017/s0376892921000308

Cited by 13 publications

(8 citation statements)

References 33 publications

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“…, National Forests, Extractive Reserves; Locke & Dearden, 2005 ; Sims, 2010 ; Ferraro et al, 2013 ; Carranza et al, 2014 ). Teixeira et al (2021) found that fully protected PAs reduce deforestation within their limits. This author also emphasized the ineffectiveness of sustainable use of PAs, especially the ones classified as “Áreas de Proteção Ambiental” (APAs).…”

Section: Discussionmentioning

confidence: 99%

Multi-temporal ecological niche modeling for bird conservation in the face of climate change scenarios in Caatinga, Brazil

Gonçalves

Cerqueira

Silva

et al. 2023

PeerJ

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Background Global shifts in climatic patterns have been recorded over the last decades. Such modifications mainly correspond to increased temperatures and rainfall regime changes, which are becoming more variable and extreme. Methods We aimed to evaluate the impact of future changes in climatic patterns on the distribution of 19 endemic or threatened bird taxa of the Caatinga. We assessed whether current protected areas (PAs) are adequate and whether they will maintain their effectiveness in the future. Also, we identified climatically stable areas that might work as refugia for an array of species. Results We observed that 84% and 87% of the bird species of Caatinga analyzed in this study will face high area losses in their predicted range distribution areas in future scenarios (RCP4.5 and RCP8.5, respectively). We also observed that the current PAs in Caatinga are ineffective in protecting these species in both present and future scenarios, even when considering all protection area categories. However, several suitable areas can still be allocated for conservation, where there are vegetation remnants and a high amount of species. Therefore, our study paves a path for conservation actions to mitigate current and future extinctions due to climate change by choosing more suitable protection areas.

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Section: Discussionmentioning

confidence: 99%

Multi-temporal ecological niche modeling for bird conservation in the face of climate change scenarios in Caatinga, Brazil

Gonçalves

Cerqueira

Silva

et al. 2023

PeerJ

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“…The region features different types of vegetation, ranging from small to medium-sized plant species resistant to the high annual variability in rainfall and the high temperatures. Despite this, the Caatinga is still considered the most diverse and largest Seasonally Dry Tropical Forest and Woodland in the tropics (Silva et al, 2017(Silva et al, , 2019Teixeira et al, 2021).…”

Section: Other Tropical Forest Biomes In South Americamentioning

confidence: 99%

Yeasts from tropical forests: Biodiversity, ecological interactions, and as sources of bioinnovation

Rosa,

Lachance,

Limtong

et al. 2023

Yeast

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Tropical rainforests and related biomes are found in Asia, Australia, Africa, Central and South America, Mexico, and many Pacific Islands. These biomes encompass less than 20% of Earth's terrestrial area, may contain about 50% of the planet's biodiversity, and are endangered regions vulnerable to deforestation. Tropical rainforests have a great diversity of substrates that can be colonized by yeasts. These unicellular fungi contribute to the recycling of organic matter, may serve as a food source for other organisms, or have ecological interactions that benefit or harm plants, animals, and other fungi. In this review, we summarize the most important studies of yeast biodiversity carried out in these biomes, as well as new data, and discuss the ecology of yeast genera frequently isolated from tropical forests and the potential of these microorganisms as a source of bioinnovation. We show that tropical forest biomes represent a tremendous source of new yeast species. Although many studies, most using culture‐dependent methods, have already been carried out in Central America, South America, and Asia, the tropical forest biomes of Africa and Australasia remain an underexplored source of novel yeasts. We hope that this review will encourage new researchers to study yeasts in unexplored tropical forest habitats.

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“…Because the Caatinga flora is subdivided in different subregions with distinct composition and abundance structure, including hundreds of rare and restricted species, it needs multiple and large protected areas, a principle implemented in the Amazon (Silva-Souza & Souza 2020). The Caatinga presents a reduced and poorly-connected protected area network: 1.79% of the domain original area is protected by Conservation Units of Integral Protection, and 7.13% by Conservation Units of sustainable or multiple use (Teixeira et al 2021), and 91% of its fragments are smaller than 500 ha (Antongiovanni et al 2018). A wider protected area cover is clearly necessary given the existence of several subregions in the Caatinga.…”

Section: Conservation Implicationsmentioning

confidence: 99%

“…The basic ecological patterns of the Caatinga are only beginning to be studied (Santos et al 2011), and protected areas within the domain cover only ca. 8.9% of its surface (Teixeira et al 2021). Improved knowledge of the spatial structure of this domain is key for both macroecological understanding of semiarid regions and conservation planning.…”

Section: Introductionmentioning

confidence: 99%

Spatial structure of the Caatinga woody flora: abundance patterns have environmental, Pleistocene, and indigenous drivers

Silva

Souza

2022

An. Acad. Bras. Ciênc.

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Despite growing knowledge on the distribution and functioning of dryland vegetation types, their internal biodiversity structure (i.e., subregions) is much less studied. In the delineation of subregions, the use of species occurrence or abundance data may reveal different aspects of metacommunity structure. We revisit the issue of the bioregionalization of the woody flora of the Caatinga, the largest block of the dry forest and woodland biome in Latin America, using abundance data. We also evaluated the drivers of the spatial distribution of plant subregions: historical, current environmental and human effects. Using a K-means partition on interpolated NMDS axes, we identified 10 abundance subregions. Aridity, topography and soil, biome stability since the Pleistocene, and historical indigenous effects were retained by a Multinomial Logistic regression model, and their combined fractions explained most of the abundance variability in subregions. The subregions we present may support spatialized conservation and management decisions in the lack of detailed local data.The present results confirm the Caatinga woody flora broad composition patterns uncovered using presence-absence data in previous studies. Additionally, we found larger subregions than those identified with presence and absence data, suggesting the existence of oligarchies of dominant species in distinct parts of the Caatinga biome.

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The Brazilian Caatinga protected areas: an extremely unbalanced conservation system

Cited by 13 publications

References 33 publications

Multi-temporal ecological niche modeling for bird conservation in the face of climate change scenarios in Caatinga, Brazil

Multi-temporal ecological niche modeling for bird conservation in the face of climate change scenarios in Caatinga, Brazil

Yeasts from tropical forests: Biodiversity, ecological interactions, and as sources of bioinnovation

Spatial structure of the Caatinga woody flora: abundance patterns have environmental, Pleistocene, and indigenous drivers

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