Estudo taxonômico de Cylindrotermes Holmgren (Isoptera, Termitidae Termitinae)

Rocha, Mauricio; Cancello, Eliana Marques

doi:10.1590/s0031-10492007001000001

Cited by 10 publications

(8 citation statements)

References 7 publications

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“…Eighty‐seven morphospecies were identified in 727 occurrences (Table S2). We estimated that approximately 50 percent of the morphospecies are new to science, and some of them have now been described elsewhere (Rocha & Cancello , ). Although the taxonomic results will be presented in detail elsewhere, some comments on the species identifications are relevant here.…”

Section: Resultsmentioning

confidence: 99%

Latitudinal Variation in Termite Species Richness and Abundance along the Brazilian Atlantic Forest Hotspot

et al. 2014

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In this study, we investigated the termites of the Brazilian Atlantic Forest, one of the most threatened biodiversity hotspots in the world, in regularly spaced sites from 7°S to 27°S latitude. To our knowledge, this is the only report of a latitudinal survey of termites at species level performed with a standardized sampling protocol. We evaluate termite diversity and abundance, and describe patterns of species composition based on feeding groups along the latitudinal gradient. We also describe the relative contribution of environmental variables to explain diversity patterns. Termite assemblages were investigated by standardized surveys at 15 Atlantic Forest sites, on six transects divided into five sections of 10 m², with 30 sections per site (or 300 m²/site), which were investigated by one trained person for one hour. Observed species richness and abundance were negatively correlated with latitude. The influence of latitude was explained mainly by variables related to temperature, precipitation and ambient energy (potential evapotranspiration). Our results also suggest that temperature exerts a greater constraint on Atlantic Forest termites than productivity, because ambient productivity increases with latitude in this forest but termite diversity decreases. Termite species richness in the Atlantic Forest showed a different pattern than those described for other organisms, increasing in diversity where the coastal-forest strip narrows. Overall, our results indicate comparatively high termite species richness at northeastern sites and a significant impoverishment of termite assemblages in the southeastern and southern regions of the Atlantic Forest.Abstract in Portuguese is available in the online version of this article.

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Section: Resultsmentioning

confidence: 99%

Latitudinal Variation in Termite Species Richness and Abundance along the Brazilian Atlantic Forest Hotspot

et al. 2014

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“…A conservative taxonomic approach was used throughout, with species being assigned existing names wherever possible. Termites with soldiers were identified to genus level with Constantino's (2002) key to Neotropical termite genera, and to species level with the museum collection and keys (Emerson 1952; Emerson & Banks 1965; Krishna & Araujo 1968; Constantino 1991, 2000; Maiti 2006; da Rocha & Cancello 2007). Soldierless termites were identified to genus and species level with L. M. Hernández's (unpubl.…”

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confidence: 99%

Termite Diversity along an Amazon-Andes Elevation Gradient, Peru

et al. 2010

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Through their role as 'ecosystem engineers', termites provide a range of ecosystem services including decomposition, and carbon and nitrogen cycling. Although termite diversity levels differ between regions as a result of variation in regional species pool size, in general, termite diversity is thought to decline with elevation. This study (1) investigated how termite species density, abundance, functional group diversity and termite attack on dead wood vary with altitude along an Amazon-Andes altitudinal gradient in Peru; (2) identified likely environmental causes of this pattern; and (3) explored the implications of termite presence for ecosystem functioning (notably for decomposition). Termites were sampled with a standardized 100 Â 2 m straight-belt transect at five undisturbed forest sites along a gradient 190 to 3025 m, as were environmental variables and termite and fungus attack on dead wood. Termite diversity was similar to that found at comparable sites in South America, and there was little turnover of assemblage composition with elevation suggesting that montane specialists are not present. Termite diversity declined with increased elevation, though the upper distribution limit for termites was at a lower elevation than anticipated. We suggest that key drivers of this elevation pattern are reduced temperature with altitude and midelevation peaks in soil water content. Also, attack on dead wood diminished with decreasing termite indirect absolute abundance, while the depth of the soil humic layer increased. We hypothesize that termite abundance is a major accelerant of decomposition rates (and associated mineralization) in Amazonian forests.Abstract in Spanish is available at http://www.blackwell-synergy.com/loi/btp.

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“…With the assistance of the soldiers' caste, alates of 16 species were identified and deposited in the Isoptera Collection at the Federal University of Paraíba. Specialised literature, including taxonomic reviews and checklists of species occurring in the area, was also used in determining species: Emerson (1925); Ahmad (1950); Krishna (1961); Mathews (1977); Araujo and Fontes (1979); Fontes (1987); Constantino (2000, 2012); Constantino et al (2006); Rocha and Cancello (2007, 2009); Carrijo (2009); Krishna et al (2013); Acioli and Constantino (2015); and Oliveira and Constantino (2016).…”

Section: Methodsmentioning

confidence: 99%

Accumulated precipitation and air density are linked to termite (Blattodea) flight synchronism in a Seasonally Dry Tropical Forest in north‐eastern Brazil

et al. 2021

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Termite dispersal flights (Blattodea: Termitoidae) are influenced by several factors that are intrinsic and extrinsic to colonies and vary according to the environment and target species. This study aimed to evaluate the main characteristics of the dispersal flights of a termite community and the environmental variables related to these flights in a Seasonally Dry Tropical Forest, situated in the semiarid region of north-eastern Brazil. The alates were collected with trays placed on the ground. Sampling was carried out over a year, with weekly trap reviews. Flight peaks started in February; i.e. these events were more frequent and alates from all species were captured. The trays were checked daily for 40 days during this period. A principal coordinate analysis was performed to determine the response variables and, after that, a generalised linear model was performed to analyse the relationship between these variables and environmental variations. Alates of 37 species were captured and the community flight pattern proved to be synchronised and highly temporally concentrated, regardless of family, subfamily or even genera. The daily sampling analysis showed that 97% of species flights occurred between the 13th and 33rd days following the start of the 40 days of daily revisions. The number of flight occurrences and species composition were significantly influenced by the accumulated precipitation over 72 h and air density. The latter variable was evaluated for the first time in this type of study. The high synchronism between species may be related to the brief period in which arid and semiarid ecosystems have the correct conditions for alate flights, which is different to alate flight occurrence in tropical rainforests, where the environmental conditions usually allow termites to fly throughout the entire year.

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Estudo taxonômico de Cylindrotermes Holmgren (Isoptera, Termitidae Termitinae)

Cited by 10 publications

References 7 publications

Latitudinal Variation in Termite Species Richness and Abundance along the Brazilian Atlantic Forest Hotspot

Latitudinal Variation in Termite Species Richness and Abundance along the Brazilian Atlantic Forest Hotspot

Termite Diversity along an Amazon-Andes Elevation Gradient, Peru

Accumulated precipitation and air density are linked to termite (Blattodea) flight synchronism in a Seasonally Dry Tropical Forest in north‐eastern Brazil

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