Floristics and life-forms along a topographic gradient, central-western Ceará, Brazil

Araújo, Francisca Soares de; Costa, Rafael Carvalho da; Lima, Jacira Rabelo; Vasconcelos, Sandra Freitas de; Girão, Luciana Coe; Sobrinho, Melissa Souza; Bruno, Morgana Maria Arcanjo; Souza, Sarah Sued Gomes de; Nunes, Edson Paula; Figueiredo, Maria Angélica; Lima-Verde, Luiz Wilson; Loiola, Maria Iracema Bezerra

doi:10.1590/2175-7860201162210

Cited by 47 publications

(51 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The study was carried out during nine nights in the dry season (July 2012) and 10 nights in the rainy season (February 2013) (ARAÚJO et al, 2011).…”

Section: Study Site and Capture Of Batsmentioning

confidence: 99%

Ticks parasitizing bats (Mammalia: Chiroptera) in the Caatinga Biome, Brazil

Luz

Muñoz-Léal

Almeida

et al. 2016

Rev. Bras. Parasitol. Vet.

View full text Add to dashboard Cite

In this paper, the authors report ticks parasitizing bats from the Serra das Almas Natural Reserve (RPPN) located in the municipality of Crateús, state of Ceará, in the semiarid Caatinga biome of northeastern Brazil. The study was carried out during nine nights in the dry season (July 2012) and 10 nights in the rainy season (February 2013). Only bats of the Phyllostomidae and Mormoopidae families were parasitized by ticks. The species Artibeus planirostris and Carolia perspicillata were the most parasitized. A total of 409 larvae were collected and classified into three genera: Antricola (n = 1), Nothoaspis (n = 1) and Ornithodoros (n = 407). Four species were morphologically identified as Nothoaspis amazoniensis, Ornithodoros cavernicolous, Ornithodoros fonsecai, Ornithodoros hasei, and Ornithodoros marinkellei. Ornithodoros hasei was the most common tick associated with bats in the current study. The present study expand the distributional ranges of at least three soft ticks into the Caatinga biome, and highlight an unexpected richness of argasid ticks inhabiting this arid ecosystem.

show abstract

“…The study was carried out during nine nights in the dry season (July 2012) and 10 nights in the rainy season (February 2013) (ARAÚJO et al, 2011).…”

Section: Study Site and Capture Of Batsmentioning

confidence: 99%

Ticks parasitizing bats (Mammalia: Chiroptera) in the Caatinga Biome, Brazil

Luz

Muñoz-Léal

Almeida

et al. 2016

Rev. Bras. Parasitol. Vet.

View full text Add to dashboard Cite

show abstract

“…Both vegetation types grow in a semiarid climate and have different richness and abundance of lianas (Araújo & Martins 1999;Araújo et al 2011). The study areas are located within the Serra das Almas Private Natural Heritage Reserve (5°7'001"S and 40°52'220.79"W), which is in the mid-western region of the state of Ceará and is located in the northeastern semiarid region of Brazil.…”

Section: Study Area and Focal Speciesmentioning

confidence: 99%

Hydraulic architecture of lianas in a semiarid climate: efficiency or safety?

et al. 2015

View full text Add to dashboard Cite

Xylem anatomical traits can provide insights regarding the mechanisms affecting the distribution of vascular plants across environmental gradients. In this study, we aimed to investigate the hypothesis that lianas occurring in semiarid environments have characteristics that maximize the xylem resistance to tension-induced cavitation along the root--stem-branch continuum. To gather information regarding the hydraulic architecture of the lianas, we analyzed several anatomical traits of wood: cross-sectional area occupied by the parenchyma (A P ), fibers (A F ), and vessels (A V ); average vessel diameter (d); wood density (WD); pit diameter in the vessel wall (d pit ); pit density (N pit ), and potential hydraulic conductivity (Kp) in branches, stems, and roots of three congeneric species of lianas that occur in two vegetation types of the semiarid regions of Brazil. We found that lianas in these semiarid environments possess a number of the following xylem traits that may allow resistance to tension-induced cavitation:1) lower vessel diameter, lower Kp, and higher hydraulic safety in roots and branches; 2) Dimorphic vessels, ensuring both hydraulic efficiency and safety; and 3) small diameter of pits (potentially associated with a decrease in the membrane area of the vessel pits). This suite of traits may provide insight into mechanisms allowing lianas to occur in semiarid environments.

show abstract

“…Análises de padrões de diversidade, distribuição e endemismos das Leguminosae em áreas de caatingas com fisionomias aparentemente homogêneas têm demonstrado que, sob a denominação de caatinga, provavelmente existam duas biotas historicamente distintas (Queiroz 2006;Cardoso & Queiroz 2007). Estes autores argumentam que as ecorregiões da Caatinga poderiam ser subdivididas em uma biota associada às superfícies sedimentares arenosas, enquanto a outra associada aos solos geralmente pedregosos derivados de rochas cristalinas pré-cambrianas (Queiroz 2006;Cardoso & Queiroz 2007;Araújo et al 2011). De fato, além de apresentar maior densidade de indivíduos por espécie (AndradeLima 1981;Lyra 1982;Rodal 1992;Rocha et al 2004), a caatinga associada às bacias sedimentares é também mais rica em espécies e endemismos do que a caatinga sobre solos derivados do embasamento cristalino (Queiroz 2006).…”

Section: Introductionunclassified

Variações locais na riqueza florística em duas ecorregiões de caatinga

et al. 2015

View full text Add to dashboard Cite

A vegetação de caatinga do nordeste brasileiro ocorre principalmente sobre dois tipos de substrato principais: sobre solos derivados do embasamento cristalino pré-cambriano e sobre a cobertura arenosa das bacias sedimentares. Evidências recentes têm demonstrado variações na dinâmica, estrutura e composição florística da caatinga desses dois macroambientes, o que fundamenta a necessidade de estudos com enfoque nas diferenças florísticas entre esses diferentes substratos. O presente estudo florístico das ecorregiões de caatinga, Depressão Sertaneja Meridional e Raso da Catarina, no município de Tucano, Bahia, é de especial interesse porque neste município ocorrem esses dois substratos em escala geográfica local, permitindo ampliar o conhecimento sobre a heterogeneidade do Domínio da Caatinga. Neste trabalho é apresentado um inventário florístico de 14 localidades nestas duas ecorregiões da Caatinga. Em conjunto, as caatingas amostradas apresentaram uma alta riqueza florística em comparação com outras áreas no nordeste do Brasil. Foram coletadas 450 espécies, 288 gêneros e 82 famílias. A maior riqueza em espécies foi das Leguminosae, seguida por Euphorbiaceae. Nas localidades sobre substrato derivado do embasamento cristalino ocorreram 226 espécies, enquanto nas de substrato arenoso ocorreram 284 espécies. A proporção de espécies em comum entre esses dois tipos de substrato foi de apenas 13%. Diferenças em composição florística reforçam a hipótese de duas biotas distintas associadas aos dois principais tipos de substrato, que compõem a vegetação da caatinga. Palavras-chave: floresta sazonalmente seca, Depressão Sertaneja Meridional, Raso da Catarina, semiárido brasileiro. AbstractThe caatinga vegetation of northeastern Brazil occurs mainly in Pre-Cambrian, crystalline-derived soils and also on sedimentary-basin-derived sandy soils. Recent evidence has shown variations in the dynamics, structure and floristic composition of the caatinga over these two different edaphic macro-environments, which justifies the need for studies focusing on different substrates. A floristic study of the caatinga ecoregions Depressão Sertaneja Meridional and Raso da Catarina in the municipality of Tucano, Bahia, Brazil, is of special interest because both substrates occur in a local scale, allowing the opportunity to broaden our knowledge on ecological heterogeneity within the Caatinga biome. In the current study we carried out a floristic survey of 14 sites distributed throughout the ecoregions of caatinga in Tucano. We found high species diversity in the caatingas of Tucano when compared to other areas in northeastern Brazil. A total of 450 species, 288 genera, and 82 families were collected. The most species rich families are Leguminosae and Euphorbiaceae. There occur 226 species in the sites on crystalline basement, whereas 284 species were collected in the sandy areas. The ecoregions were only 13% similar in floristic composition. We found strong differences between the ecoregions with respect to floristic composition and predominan...

show abstract

Floristics and life-forms along a topographic gradient, central-western Ceará, Brazil

Cited by 47 publications

References 28 publications

Ticks parasitizing bats (Mammalia: Chiroptera) in the Caatinga Biome, Brazil

Ticks parasitizing bats (Mammalia: Chiroptera) in the Caatinga Biome, Brazil

Hydraulic architecture of lianas in a semiarid climate: efficiency or safety?

Variações locais na riqueza florística em duas ecorregiões de caatinga

Contact Info

Product

Resources

About