Uso De Espécies Da Caatinga Na Alimentação De Rebanhos No Município De São João Do Cariri – Pb

Araujo, Kallianna Dantas; Dantas, Renílson Targino; Andrade, Alberício Pereira de; Parente, Henrique Nunes; Éder-Silva, Erllens

doi:10.5380/raega.v20i0.20619

Cited by 15 publications

(11 citation statements)

References 1 publication

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“…Furthermore, as many Caatinga plant species exhibit protective mechanisms (spines and thorns, unpleasant taste, toxic compounds, hirsute leaves; Pfister & Malechek, ; Figueiredo, Araújo, Pereira, Bakke, & Bakke, ; Araújo‐Filho, ; Sebata, ; Oliveira et al., ), palatable and unprotected species may decline in abundance due to selective grazing (Wan et al., ; Oliveira et al., ). In addition, goats are known to browse on twigs, leaves, or on the bark of trees and cacti (Araujo, Dantas, de Andrade, Parente, & Érllens, ). However, in our study area, trees and cacti with damaged trunks were only observed occasionally (own observation), and thus the overall direct impact of browsing on these plant types is expected to be low.…”

Section: Discussionmentioning

confidence: 99%

Grazing reduces plant species diversity of Caatinga dry forests in northeastern Brazil

Schulz

Guschal

Kowarik

et al. 2019

Applied Vegetation Science

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Questions:In many arid and semi-arid regions of the world, livestock husbandry is the main land use and grazing is one of the main challenges for biodiversity conservation. This also applies to the Caatinga, a unique seasonally dry tropical forest in northeastern Brazil. It is considered one of the most threatened ecosystems of Brazil.To protect semi-arid regions from biodiversity loss, degradation, and desertification, sustainable management practices are urgently needed. However, the effect of different grazing intensities on plant diversity is not yet fully understood. In this study, we examined the effect of different grazing intensities on plant species composition, alpha and beta diversity.Location: Vicinity of the Itaparica Reservoir, northeastern Brazil. Methods:We assessed the effects of different grazing intensities (high, intermediate, no/low) on species composition, alpha and beta diversity of the tree and shrub, and the herb layer in a Caatinga area. Plant diversity of the tree and shrub layer was assessed on 45 study plots (each 20 m × 20 m), while the diversity of herbs was studied on a subset of 36 plots (four subplots, each 2 m × 2 m). Results:In total, we recorded 140 plant taxa including morphospecies. Grazing at high intensities significantly reduced almost all measures of alpha and beta diversity (tree and shrub layer) compared to areas with no or low grazing. In contrast, species composition was not significantly related to grazing but instead to altitude, which serves as an indicator of reduced anthropogenic impact such as slash-and-burn agriculture or tree harvesting. Conclusion:Overall, the study results show that the current livestock management has negative effects on plant diversity in Caatinga ecosystems. These results have been incorporated into guidelines provided to regional stakeholders including recommendations for adapted land-management practices that protect and foster the biodiversity of dry forests while sustaining local livelihoods. K E Y W O R D S biodiversity, Brazil, Caatinga, goats, grazing, intermediate disturbance hypothesis, land management, land use, livestock husbandry, seasonally dry tropical forest, semi-arid | 349 Additional supporting information may be found online in the Supporting Information section at the end of the article. Appendix S1. Vegetation plot data. Plant species, their growth form and frequency in a caatinga area in northeastern Brazil. Appendix S2. Plant species, their growth form and frequency in a caatinga area in northeastern Brazil. Appendix S3. p Values of generalised linear models (GLMs) with diversity indices as response variables. Appendix S4. Beta diversity for the herb layer at three grazing intensities (no/low, intermediate, high). Appendix S5. p Values of generalised linear models (GLMs) with Bray-Curtis dissimilarity index as response variables. Appendix S6. Plant diversity of caatinga systems in the tree and shrub layer with inclusion parameters and site description. Appendix S7. Plant diversity of caatinga systems in the herb lay...

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Section: Discussionmentioning

confidence: 99%

Grazing reduces plant species diversity of Caatinga dry forests in northeastern Brazil

Schulz

Guschal

Kowarik

et al. 2019

Applied Vegetation Science

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“…The use of mandacaru for food included both nonhuman animals (see, for example, Cavalcanti & Resende 2006) Mandacaru is one of the main forage resources for ruminant animals during the prolonged drought periods in Northeast Brazil. Because of this, many agriculturalists of this region cultivate mandacaru to support their herd Animal food (forage) Cavalcanti & Resende 2006;Santos et al 2007;Araújo et al 2010;Damasceno et al 2010;Silva et al 2011;Lucena et al 2012b;2015;Pereira Filho et al 2013;Roque & Loiola 2013;Silva et al 2013;Alves et al 2014;Sales et al 2014;Pereira Júnior et al 2015;Santana Neto et al 2015 Cereus jamacaru DC. (Cactaceae): From 17 th century naturalists to modern day scientific and technological prospecting and to sell to other ranchers (Sales et al 2014).…”

Section: Resultsmentioning

confidence: 99%

Cereus jamacaru DC. (Cactaceae): From 17 th century naturalists to modern day scientific and technological prospecting

et al. 2019

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Mandacaru (Cereus jamacaru DC-Cactaceae) possesses peculiar physiological and morphological characteristics that allow it to withstand long periods of scarcity and to adapt to diff erent environments. Several uses have also been reported for the species from the 17 th century to the present day. Given this history and the importance of the usage of mandacaru, the present investigation aimed to gather information about its uses from diff erent documentary sources, and to perform a comparative analysis between past and present uses. Historia Naturalis Brasiliae by Piso and Marcgrave (17 th century) served as the primary source, while information on labels of exsicates in botanical collections, basic scientifi c literature, and applications for patent fi ling at INPI, EPO, USPTO, WIPO (until October 2017), served as secondary sources. According to established categories of use, both the primary source and secondary sources revealed that mandacaru has had several applications, among which use for food and medicinal purposes stand out. Other uses, such as ornamental, magical-religious, civil construction and rural fences, were also reported. Despite the numerous references of usage in the documentary sources, knowledge about the potential use of C. jamacaru is not widely spread nor well protected.

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“…One hundred percent of the evaluated plants nodulated, regardless of the soil in which they were grown. According to Araujo et al (2010), M. tenuiflora is a widely occurring Fabaceae plant in the north-eastern Brazilian states found in the Caatinga vegetation and presents low symbiotic specificity. The species with the second highest nodulation index was M. atropurpureum, which reached 100% nodulation in soils from the Sertânia and Arcoverde locations, with a small decrease when cultivated in the soil from the sampling areas of the municipality of São Bento do Una (92.5%).…”

Section: Resultsmentioning

confidence: 99%

Morphophysiology of Rhizobia Isolated From Native Forage of Fabaceae of the Caatinga

et al. 2019

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The rhizobia found in Fabaceae plants of the Caatinga may have potential as fodder in the semiarid region, thus increasing the availability of feed for animal production in this region. This study aimed to characterize the morphophysiology of rhizobia strains of the forage species Mimosa tenuiflora (Jurema preta), Macroptilium atropurpureum (Siratro), and Desmanthus pernambucanus (Jureminha). The soil used as the substrate was collected at specific locations in the municipalities of Sertânia, Arcoverde, and São Bento do Una, state of Pernambuco. The characterization of rhizobial colonies included growth period, diameter, elevation, transparency, exopolysaccharides production, and color. In addition, salinity, temperature, and pH tolerance tests of the native rhizobia were conducted. Evaluation of cultures showed that the isolates formed colonies with flat elevation, moderate production of exopolysaccharides, coloration varying from cream to white, and a smooth surface. Physiological tests of abiotic stress resistance showed that the native species isolated from M. tenuiflora were more resistant when grown in soils from the municipality of Sertânia and isolates from M. atropurpureum and D. pernambucanus had high resistance to high temperatures, regardless of place of farming. It can be concluded that native rhizobia from the Semiarid region of Pernambuco show resistance to stress caused by high temperatures, salinity variation, and pH. These characteristics are influenced by soil and the botanical species in symbiosis with the rhizobia.

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Uso De Espécies Da Caatinga Na Alimentação De Rebanhos No Município De São João Do Cariri – Pb

Cited by 15 publications

References 1 publication

Grazing reduces plant species diversity of Caatinga dry forests in northeastern Brazil

Grazing reduces plant species diversity of Caatinga dry forests in northeastern Brazil

Cereus jamacaru DC. (Cactaceae): From 17 th century naturalists to modern day scientific and technological prospecting

Morphophysiology of Rhizobia Isolated From Native Forage of Fabaceae of the Caatinga

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