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| Sousa,Diego Guimarães de; Cunha,Hélida Ferreira da. |
| ABSTRACT Understanding how fire affects the plant biota of the Cerrado is essential for formulating conservational strategies. We evaluated the effects of fires during different periods of the year on the populational structure of Anacardium humile. The research was carried out in areas of typical cerrado stricto sensu in the territory of the Kalunga, state of Goiás, Brazil. These areas, which comprise the same population, were submitted to the following treatments: unburned (control), burned in May 2016 (early fire - EF), and burned in September 2016 (late fire - LF). In July 2018, we delimited two contiguous transects of 100 x 20 m, subdivided into 10 plots of 20 x 20 m, in each area. Fire stimulated the development of branches from basal regrowth in EF... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anacardiaceae; Burning; Cerrado; Fire; Impact; Regimes. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200401 |
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| Arruda,Filipe Viegas de; Sousa,Diego Guimarães de; Teresa,Fabrício Barreto; Prado,Vitor Hugo Mendonça do; Cunha,Hélida Ferreira da; Izzo,Thiago Junqueira. |
| Abstract Fire management is an important issue in the Brazilian Cerrado, since both anthropogenic high intensity fires and complete fire suppression can reduce the biodiversity in this biome. In this paper, we highlight the trends in scientific literature about fire effects in the Cerrado, aiming to detect possible gaps and to indicate directions of future scientific research. We searched for articles in the periodic database Web of Knowledge from 1991 to 2016, and observed an increase in the number of publications throughout the years. Most articles were associated with Brazilian institutions (58%), followed by those with collaboration between Brazilian and international institutions (33%), and those published by authors exclusively from international... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Burning; Scientometrics; Biodiversity Hotspots; Savanna; Perturbation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000100211 |
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| Cunha,Hélida Ferreira da; Diniz-Filho,José Alexandre Felizola; Brandão,Divino. |
| Abundace and body size distribution of invertebrates of leaf litter in Amazonian forest, Brazil. Based on 605 invertebrates sampled of the litter in an Amazonian Forest, some basic macroecological patterns for this assemblage were described. The relationship between abundance and body size, at logarithmic scale, was triangular, and the distribution of species was constrained in an asymmetric triangular envelope, that was tested using null model procedures in ECOSIM (P= 0,0002). The most abundant species were at an intermediated body size. The relationship between maximum abundance with different mean body size classes confirmed the Energetic Equivalent Rule (b = -1,069; t-0,75 = -2,13; P = 0.079). This way, species tend to consume energy from the community... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abundance; Body size; Energetic Equivalence Rule; Invertebrates; Triangular pattern. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262003000100009 |
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| Cunha,Hélida Ferreira da; Brandão,Divino. |
| Constrictotermes cyphergaster (Silvester, 1901) builds arboreal nests in Brazilian Cerrado stricto sensu, which are frequently cohabited by inquilines termites and by termitophiles. In a study made at the Parque Estadual da Serra de Caldas Novas, Goiás, Brazil, there were four nests with multiple reproductives, and secondary reproductives were found in 26 nests. Nymphs of Inquilinitermes were more abundant (9,47%) than nymphs of C. cyphergaster (0,78%). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Constrictotermes cyphergaster; Inquilinitermes; Multiple reproductives; Termite. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262002000100004 |
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| Ferreira,Maria Judy de Mello; Santos,Benedito Baptista dos; Cunha,Hélida Ferreira da. |
| Three species of Chrysomya were collected and the most frequent were: C. albiceps (Wiedemann, 1819) (62,62%), C. putoria (Wiedeman, 1818) (30,11%) and C. megacephala (Fabricius, 1794) (7,27%). The peaks of the populations of these species occurred in November and December/1988 and October and November/1989, and the small frequencies occurred from April to June/1989. All species showed significant correlation to 5% level with pluviometric precipitation, and none species showed correlation with temperature and relative humidity. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diptera; Calliphoridae; Chrysomya; Orchard. |
| Ano: 1995 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000300010 |
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