Spatio-temporal variation in a seed bank of a semi-arid region in northeastern Brazil

This study aimed to evaluate the infection rates of snakes by pentastomids in the semi-arid region of Brazil. Fifteen snakes (four Micrurus ibiboboca (Merrem, 1820) and eleven Philodryas nattereri Steindachner, 1870) were collected between January and April of 2005, in the municipality of Crato (07° 14' S and 39° 24' W), State of Ceará, Brazil. Laboratorial analysis of the respiratory tracts of the sampled snakes indicated differences in host infection rates: four individuals of P. nattereri (36.4%) were infected by Cephalobaena tetrapoda Heymons, 1922 (mean infection intensity 1.5 ± 0.28, 1-2) and three specimens (27.3%) by Raillietiella furcocerca (Diesing, 1863) (2.3 ± 1.32, 1-5). Only one individual of M. ibiboboca (25%) was infected by a non-identified species of Raillietiella sp. These are the first data on pentastomid infection in snakes in Northeastern Brazil and both snake species comprise new host records for the pentastomids. The results also indicate that the generalist parasites C. tetrapoda and R. furcocerca share their definitive hosts.

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Temporal variation and co-occurrence of fluoride and arsenic in aquifers of the central semi-arid region of Chihuahua, Mexico

Understanding the Geological and Medical Interface of Arsenic - As 2012 ◽

10.1201/b12522-172 ◽

2012 ◽

pp. 476-477

Keyword(s):

Temporal Variation ◽

Arid Region ◽

Semi Arid Region ◽

Semi Arid

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THERMAL CHARACTERIZATION OF THE FAVELONE DERIVATIVES (CNIDOSCOLUS QUERCIFOLIUS) BY THERMOGRAVIMETRY AND DIFFERENTIAL SCANNING CALORIMETRY

Periódico Tchê Química ◽

10.52571/ptq.v3.n05.2006.janeiro/1_pgs_8_20.pdf ◽

2006 ◽

Vol 05 (3) ◽

pp. 8-20

Author(s):

José Carlos Oliveira SANTOS ◽

Lionete Dantas NUNES ◽

Sylvia Berenice NÓBREGA ◽

Dantas José Pires PUZINSKI ◽

Antonio Gouveia SOUZA

Keyword(s):

Differential Scanning Calorimetry ◽

Arid Region ◽

Agricultural Practices ◽

Thermal Characterization ◽

Northeastern Brazil ◽

Scanning Calorimetry ◽

Semi Arid Region ◽

Derivatives Of ◽

Semi Arid

A thermal analysis has been applied to characterization of food and food products. Taking into account the problems of desertification and agricultural practices able to provide income to the population at the semi-arid region of Northeastern Brazil, this work presents the results of the chemical, thermal and kinetic characterization by thermogravimetry and differential scanning calorimetry of the seed derivatives of favelone (cnidoscolus quercifolius), aiming at the application of these materials as an alternative of food source for animals and for the human population at this brazilian region.

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Chapada Do Araripe: A Highland Oasis Incrusted into the Semi-arid Region of Northeastern Brazil

World Geomorphological Landscapes - Landscapes and Landforms of Brazil ◽

10.1007/978-94-017-8023-0_21 ◽

2015 ◽

pp. 231-242 ◽

Cited By ~ 2

Author(s):

Norberto Morales ◽

Mario Luis Assine

Keyword(s):

Arid Region ◽

Northeastern Brazil ◽

Semi Arid Region ◽

Semi Arid ◽

Chapada Do Araripe

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Hunting, capture, and wildlife use by communities in a semi-arid region of Northeastern Brazil

Human Dimensions of Wildlife ◽

10.1080/10871209.2021.2018738 ◽

2021 ◽

pp. 1-11

Author(s):

Anna Karolina Martins Borges ◽

Bruna Dias Pontes Ribeiro ◽

Rômulo Romeu Da Nóbrega Alves

Keyword(s):

Arid Region ◽

Northeastern Brazil ◽

Wildlife Use ◽

Semi Arid Region ◽

Semi Arid

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Spatio-Temporal Response of Vegetation Indices to Rainfall and Temperature in A Semiarid Region

Sustainability ◽

10.3390/su12051939 ◽

2020 ◽

Vol 12 (5) ◽

pp. 1939 ◽

Cited By ~ 3

Author(s):

Edith Olmos-Trujillo ◽

Julián González-Trinidad ◽

Hugo Júnez-Ferreira ◽

Anuard Pacheco-Guerrero ◽

Carlos Bautista-Capetillo ◽

...

Keyword(s):

Arid Region ◽

Climatic Factors ◽

Time Lag ◽

Vegetation Indices ◽

Climatic Variables ◽

Semiarid Region ◽

Linear Regression Models ◽

Spatio Temporal ◽

Semi Arid Region ◽

Semi Arid

In this research, vegetation indices (VIs) were analyzed as indicators of the spatio-temporal variation of vegetation in a semi-arid region. For a better understanding of this dynamic, interactions between vegetation and climate should be studied more widely. To this end, the following methodology was proposed: (1) acquire the NDVI, EVI, SAVI, MSAVI, and NDMI by classification of vegetation and land cover categories in a monthly period from 2014 to 2018; (2) perform a geostatistical analysis of rainfall and temperature; and (3) assess the application of ordinary and uncertainty least squares linear regression models to experimental data from the response of vegetation indices to climatic variables through the BiDASys (bivariate data analysis system) program. The proposed methodology was tested in a semi-arid region of Zacatecas, Mexico. It was found that besides the high values in the indices that indicate good health, the climatic variables that have an impact on the study area should be considered given the close relationship with the vegetation. A better correlation of the NDMI and EVI with rainfall and temperature was found, and similarly, the relationship between VIs and climatic factors showed a general time lag effect. This methodology can be considered in management and conservation plans of natural ecosystems, in the context of climate change and sustainable development policies.

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Natural Regeneration of the Mangrove Vegetation on Abandoned Salt Ponds in Ceará, in the Semi-Arid Region of Northeastern Brazil

Diversity ◽

10.3390/d11020027 ◽

2019 ◽

Vol 11 (2) ◽

pp. 27 ◽

Cited By ~ 2

Author(s):

Armando Reis-Neto ◽

Antonio Meireles ◽

Marília Cunha-Lignon

Keyword(s):

Natural Regeneration ◽

Arid Region ◽

Ecosystem Dynamics ◽

Shrimp Farming ◽

Northeastern Brazil ◽

Integrated Analysis ◽

Technical Problems ◽

Mangrove Vegetation ◽

Semi Arid Region ◽

Semi Arid

The development of the mangrove in Ceará state, northeastern Brazil, is limited by local environmental and climatic factors, associated with the variables that determine the region’s semi-arid climatic conditions. The same conditions also contribute to the installation of artisanal saltworks in estuarine environments. The artisanal production of salt peaked in the 20th century, but with the decline of this activity, the salt evaporation ponds were abandoned, and have been incorporated back into the natural marine-estuarine environment and colonized by mangrove forests. In the early 2000s, however, the expansion of shrimp farming operations impacted this same environment. The present study was based on a spatiotemporal analysis of the natural regeneration of the mangrove vegetation in abandoned salt pond areas in the Brazilian semi-arid region between 1968 and 2009. The integrated analysis of mangrove ecosystem dynamics and the legislation that regulates the licensing of these economic activities identified a number of technical problems in the formulation and execution of the COEMA resolution 02/2002, which permits the installation of shrimp farms in areas dominated by the mangrove. The findings of the present study reinforce the need for a careful reformulation of the Ceará state environmental legislation, in order to guarantee the maximum possible conservation of the coastal zone.

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