Arid
DOI10.1080/00379271.2017.1281090
’Murundus’ structures in the semi-arid region of Brazil: testing their geographical congruence with mound-building termites (Blattodea: Termitoidea: Termitidae)
de Souza, Henrique Jesus1; Charles Delabie, Jacques Hubert2
通讯作者Charles Delabie, Jacques Hubert
来源期刊ANNALES DE LA SOCIETE ENTOMOLOGIQUE DE FRANCE
ISSN0037-9271
EISSN2168-6351
出版年2016
卷号52期号:6页码:369-385
英文摘要

Earth mounds called ’murundus’ are conspicuous features in the semi-arid region of Brazil, where their distribution and origin remain largely unknown. We adopted an approach based on spatially explicit mapping and modeling to determine the current and potential geographical distribution of murundus. We set up a systematic grid survey to map their current distribution using high-resolution satellite imagery available via free open source software. To obtain insights into the origin of these earth mounds, predictive models were used to test their geographical congruence with six mound-building termites ( genera Cornitermes Wasmann, 1897, and Syntermes Holmgren, 1909). The Maxent algorithm was used to generate the potential distribution models based on a set of five variables related to primary environmental regimes that determine the fundamental niche of termite species. To analyze if there was some congruence between associated environmental variables, we cross-checked the results obtained from the statistical tests using MAXENT software. Murundus mostly occur in the south-central region of the Caatinga biome (i.e. seasonally dry tropical forest) in areas with moderate annual mean temperature (2024 degrees C) and precipitation (600-910 mm), and soils with moderate to severe constraints concerning nutrient availability. We observed a strong geographical congruence between the potential distributions of densely packed murundus and four mound-building termites [i.e. Cornitermes bequaerti Emerson, 1952,degrees C. silvestrii Emerson, 1949, Syntermes dirus (Burmeister, 1839) and S. wheeleri (Emerson, 1925)]. Based on the significant association of those distributions with the climate and soil nutrient availability, we concluded that the formation of murundus in the semi-arid domain might be an adaptive response of mound-building termites to particular regional environmental conditions.


英文关键词Caatinga biome Cornitermes mima-like mound Syntermes spatially explicit mapping species distribution modeling
类型Article
语种英语
国家Brazil
收录类别SCI-E
WOS记录号WOS:000394986900004
WOS关键词MACROTERMES-BELLICOSUS ISOPTERA ; MIMA-LIKE MOUNDS ; SPECIES DISTRIBUTIONS ; ECOSYSTEM ENGINEERS ; EARTH MOUNDS ; SOUTH-AFRICA ; STABILITY ; HABITATS ; SAVANNA ; PATTERN
WOS类目Entomology
WOS研究方向Entomology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/191264
作者单位1.Univ Fed Bahia, Inst Biol, Programa Posgrad Ecol & Biomonitoramento, Rua Barao Geremoabo, BR-40170000 Salvador, BA, Brazil;
2.CEPLAC, Ctr Pesquisa Cacau, Lab Mirmecol, Convenio UESC CEPLAC, BR-45600970 Itabuna, BA, Brazil
推荐引用方式
GB/T 7714
de Souza, Henrique Jesus,Charles Delabie, Jacques Hubert. ’Murundus’ structures in the semi-arid region of Brazil: testing their geographical congruence with mound-building termites (Blattodea: Termitoidea: Termitidae)[J],2016,52(6):369-385.
APA de Souza, Henrique Jesus,&Charles Delabie, Jacques Hubert.(2016).’Murundus’ structures in the semi-arid region of Brazil: testing their geographical congruence with mound-building termites (Blattodea: Termitoidea: Termitidae).ANNALES DE LA SOCIETE ENTOMOLOGIQUE DE FRANCE,52(6),369-385.
MLA de Souza, Henrique Jesus,et al."’Murundus’ structures in the semi-arid region of Brazil: testing their geographical congruence with mound-building termites (Blattodea: Termitoidea: Termitidae)".ANNALES DE LA SOCIETE ENTOMOLOGIQUE DE FRANCE 52.6(2016):369-385.
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