Biotemas, 27 (3): 197-200, setembro de 2014 ISSNe 2175-7925 http://dx.doi.org/10.5007/2175-7925.2014v27n3p197 197 Short Communication Dung beetle communities in coal mining areas in the process of recovery Joana Zamprônio Bett 1 Patrícia Menegaz de Farias 1,2* Pedro Giovâni da Silva 2 Malva Isabel Medina Hernández 2 1 Laboratório de Entomologia Centro de Desenvolvimento Tecnológico Amael Beethoven Villar Ferrim, Departamento de Agronomia Universidade do Sul de Santa Catarina, CEP 88701-000, Tubarão – SC, Brasil 2 Laboratório de Ecologia Terrestre Animal, Programa de Pós-Graduação em Ecologia Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina CEP 88040-900, Florianópolis – SC, Brasil * Autor para correspondência [email protected] Submetido em 04/03/2014 Aceito para publicação em 23/06/2014 Resumo Escarabeíneos em áreas de mineração de carvão em processo de recuperação. Besouros escarabeíneos sensíveis a modi¿caç}es ambientais podem apontar a recuperação de ireas degradadas. Este trabalKo obMetivou registrar e comparar as comunidades de Scarabaeinae em ireas com diferentes períodos de recuperação ambiental após serem usadas para mineração de carvão. 2 presente estudo foi reali]ado em duas ireas em recuperação um e cinco anos no município de Lauro 0ller, Santa Catarina, e contou com 1 armadilKas de Tueda iscadas com fe]es Kumanas em cada irea. Em laboratório reali]ou-se a contagem, identi¿cação e mensuração do tamanKo corporal e biomassa dos esppcimes capturados. Veri¿cou-se a su¿ciência amostral e as variiveis de ambas as ireas foram comparadas atravps de teste t. As esppcies registradas foram Canthon aff. chalybaeus, Canthon angularis, Canthon rutilans cyanescens, Deltochilum multicolor, Dichotomius sericeus, Eurysternus parallelus e Ontherus sulcator. 2 n~mero total de indivíduos capturados foi de , sendo três na irea de um ano em recuperação e 2 na de cinco anos a esppcie mais abundante foi C. rutilans cyanescens (40,6%). Todas as esppcies estiveram presentes na irea de cinco anos, mas somente C. aff. chalybaeus e D. multicolor na irea de um ano. 2 tamanKo mpdio dos indivíduos amostrados na irea de um ano de recuperação foi de 11,0 mm e a biomassa 0,01 g, enTuanto Tue na irea com cinco anos de recuperação o tamanKo mpdio e a biomassa dos besouros escarabeíneos amostrados foi de 12,25 mm e 0,093 g, respectivamente. Palavras-chave: Carvão mineral; Ecologia; Indicadores; Recuperação ambiental; Scarabaeinae Abstract Dung beetles tKat are sensitive to environmental alterations ma\ be used as indicator species to marN tKe recover\ of degraded areas. TKis ZorN aimed at registering and comparing tKe communities of Scarabaeinae located in areas ZitK different periods of environmental recover\ after being used for coal mining. TKis stud\ Revista Biotemas, 27 (3), setembro de 2014 198 J. Z. Bett et al. Zas developed in Lauro 0ller, Santa Catarina, and consisted of tZo areas in tKe process of recover\, one for one \ear and one for ¿ve \ears. Fifteen pitfall traps baited ZitK Kuman feces Zere placed in eacK area in order to attract tKe dung beetles. TKe counting, identi¿cation and measurement of bod\ si]e and biomass of tKe specimens captured Zere carried out in tKe laborator\. Sampling suf¿cienc\ Zas veri¿ed and variables from botK areas Zere compared using a t test. TKe recorded species Zere Canthon aff. chalybaeus, Canthon angularis, Canthon rutilans cyanescens, Deltochilum multicolor, Dichotomius sericeus, Eurysternus parallelus and Ontherus sulcator. A total of 35 individuals Zere captured, tKree in tKe one-\ear recover\ area and 32 in tKe area under recover\ for ¿ve \ears, C. rutilans cyanescens being tKe most abundant species (40.6%). All species collected Zere found in tKe ¿ve-\ears recover\ area, ZKereas onl\ C. aff. chalybaeus and D. multicolor Zere found in tKe one-\ear recover\ area. Individuals sampled in tKe area ZitK one \ear of recover\ Kad an average si]e of 11.03 mm and average biomass of 0.051 g, ZKereas in tKe ¿ve-\ears recover\ area tKe average si]e and tKe biomass of tKe dung beetles sampled Zas 12.25 mm and 0.093 g, respectivel\. Key words: Indicators; Ecolog\; Environmental recover\; 0ineral coal; Scarabaeinae TKe mining process is Zidel\ acNnoZledged as a source of environmental problems (SILVA, 2011), as mining activities often result in tKe elimination of vegetation and tKe interruption of gene ÀoZ via fragmentation of Kabitats, causing deatK or e[tinction of fauna (0EC+I; SA1C+EZ, 2010). TKe process of induced environmental recover\ aims to accelerate tKe reestablisKment of Kabitat b\ improving abiotic conditions in degraded areas in accordance ZitK future use (PEREIRA; R2DRIGUES, 2012). TopograpKic and landscape re-composition, as Zell as soil reconstruction are actions tKat seeN to maNe tKe environment favorable for tKe development of animal and plant species (C2STA; Z2CC+E, 2009). TKe presence of indicator organisms during tKe recover\ process ma\ Kelp tKe monitoring process b\ elucidating mecKanisms of environmental re-composition (CA0P2S et al., 2012). SucK organisms Kave life Kistor\ traits intrinsicall\ related to tKeir Kabitat in sucK a Za\ tKat an\ alteration can inÀuence population d\namics (PA2LETTI, 1999). SucK species are regarded as indicators of environmental Tualit\, for tKe\ reÀect tKe ecological integrit\ of tKe ecos\stems and tKus ma\ be used as a pro[\ to measure tKe degradation levels of sites in recover\ (LUTI1S.I; GARCIA, 2005). Dung beetles (Coleoptera Scarabaeidae Scarabaeinae) Zere indicated b\ +alffter and Favila (1993) as important bioindicators because tKe\ respond to environmental variation. It is freTuentl\ observed tKat tKe most diverse communities ZitK species of greater bod\ si]e are located in preserved forest areas, and tKat degraded areas sKoZ a decrease in dung beetle Revista Biotemas, 27 (3), setembro de 2014 abundance, species ricKness and bod\ si]e (GARD1ER et al., 2008). TKis group performs several ecos\stem services (revieZed b\ 1IC+2LS et al., 2008), operating in ecological processes sucK as increasing tKe rate of nutrient c\cling tKrougK tKe allocation of food resources, tKe opening of galleries tKat facilitate Zater and air circulation in soil (0ITTAL, 1993), breaNing of tKe life c\cle of some parasites of vertebrates (RIDSDILLS0IT+; +A<LES, 1990), and tKe secondar\ dispersion of seeds, ZKicK ma\ influence forest regeneration (ANDRESEN, 2002). Studies tKat anal\]e dung beetle communities in areas recovering from coal mining practices sKoZ tKat older recovered areas alloZ greater species presence, ZKicK contributes to tKe increase of ecos\stem services (+ERNÈNDEZ et al., unpublisKed data). As a contribution to tKe monitoring of environmental Tualit\ in altered landscapes, tKis ZorN focused on registering and comparing tKe communities of Scarabaeinae located in areas ZitK different periods of environmental recover\ after being used for coal mining. TKe stud\ Zas carried out in Lauro 0ller, Santa Catarina, Bra]il betZeen -anuar\ and Februar\ 2013, a period of great dung beetle abundance in subtropical regions (HERNÁNDEZ; VAZ-DE-MELLO, 2009; SILVA et al., 2013). TKe annual relative Kumidit\ of tKe stud\ region varies betZeen 80% and 85%, and tKe average annual rainfall is betZeen 1,400 and 1,600 mm. TKe average annual temperature is betZeen 16C and Dung beetles in coal mining areas 18 C. TKe predominant climate is Kumid mesotKermal ZitK Kot Zinter (Cfa) (EPAGRICIRAM, 2010). TZo areas ZitK different periods of recover\ from mining Zere sampled tKe ¿rst one (2819¶S, 4926¶:) ZitK an area of 0.032 Nm2, Kas been in recover\ for rougKl\ one \ear and is cKaracteri]ed as implanted pasture ZitK fragments of secondar\ forest. It is delimited east b\ a road, and is surrounded b\ farms ZitK native pasture used for e[tensive cattle breeding in tKe nortK, soutK and Zest. TKe second area (2822¶S, 4927¶:), ZitK an area of 0.021 Nm2, Kas been in recover\ for ¿ve \ears and is covered b\ implanted pasture. It is delimited nortK and Zest b\ a long area of preserved forest; in tKe soutK, a reforested area ZitK eucal\ptus; and in tKe east, a native pasture used for cattle breeding. Fifteen baited pitfall traps eacK 50 m apart Zere placed in eacK area. Traps contained Zater ZitK a neutral detergent to breaN tKe surface tension and prevent tKe insects from escaping. TKe rain sKields of traps Zere baited ZitK Kuman feces (20 g) to attract tKe individuals; tKis is one tKe most emplo\ed and ef¿cient metKods for tKe capture of tKe maMorit\ of tKe species in tKis group (LOBO et al., 1988). Traps remained in tKe ¿eld for 48 Kours, after ZKicK captured insects Zere collected and transferred to receptacles containing alcoKol (70%). Individuals Zere oven-dried at 60C for 48 Kours, and tKe counting, identi¿cation, measurement of tKe bod\ si]e and ZeigKt Zere carried out in tKe laborator\. TKe specimens are in tKe entomological collection at tKe entomolog\ laborator\ of Universidade do Sul de Santa Catarina. A total of 35 individuals from seven species of Scarabaeinae Zere collected 91,4% (n 32) of tKe total individuals Zere captured in tKe area recovering for ¿ve \ears, ZKereas onl\ 8,6% (n 3) of tKe total Zere captured in tKe area recovering for one \ear. Seven species Zere recorded in ¿ve-\ear recover\ area Canthon aff. chalybaeus BlancKard (n 6), Canthon angularis Harold (n 1), Canthon rutilans cyanescens Harold (n 13), Deltochilum multicolor BaltKasar (n 4) (tribe DeltocKilini), Dichotomius sericeus (Harold) (n 4), Ontherus sulcator (Fabricius) (n 3) (tribe Coprini) and Eurysternus parallelus Castelnau (n 1) (tribe Oniticellini). Onl\ tZo species Zere recorded in tKe one-\ear recover\ area C. aff. chalybaeus (n 2) and 199 D. multicolor (n 1). TKe species sampled are common in areas of Atlantic Forest in Santa Catarina (CAMPOS; HERNÁNDEZ, 2013). Sampling sufficienc\ Zas corroborated b\ tKe CKao 1 estimator, ZKicK estimated 100% of tKe ricKness observed in tKe area of ¿ve \ears (7 0.25) and in tKe area of one \ear (2 0.17). T-test sKoZed tKat tKe ¿ve-\ear recover\ area sKoZed greater average species ricKness per trap (1.6 0.38) tKan did tKe one-\ear area (0.2 0.01) (t 1.97; df 1; p 0.034), a result in agreement ZitK Davis et al. (2003) and Herninde] et al. (unpublisKed data), botK of ZKicK indicate KigKer species ricKness in areas alloZed to recover from mining for longer time periods. HoZever, Audino et al. (2014) empKasi]e tKat dung beetle assemblages are severel\ impoverisKed in restored sites, and tKat even after 18 \ears tKe communities remain poor in species ricKness. Environmental structure is an important aspect of tKe organi]ation of dung beetle communities (HERNÁNDEZ; VAZ-DE-MELLO, 2009; CAMPOS; HERNÁNDEZ, 2013). HoZever, a confounding factor in tKe e[planation for tKe increase in ricKness is tKe pro[imit\ to areas ZitK more preserved Kabitats, ZKicK ma\ act as a source area or species pool. HoZever, it is NnoZn tKat tKe pro[imit\ to more adeTuate environments does not determine species ricKness in dung beetles, as traps placed onl\ 15 meters from forests are not effective for tKeir capture (.LEIN, 1989). AltKougK tKe average si]e and biomass of individuals sampled in tKe area of one \ear under recover\ (11.03 mm and 0.051 g) Zere similar to tKat of tKe area of ¿ve \ears (12.25 mm and 0.093 g), tKe total biomass Zas more tKan 15 times greater in tKe area of ¿ve \ears (2.47 g) tKan in tKe otKer area (0.15 g). Gardner et al. (2008) sKoZed tKat ZitKin all genera of Scarabaeinae, tKere is a decrease in larger species in degraded areas in Bra]ilian Ama]onia. According to Barragin et al. (2011), tKe functional ricKness ma\ also decrease ZitK increasing degree of tKe environmental alteration, ZKicK is directl\ related to tKe ecos\stem services performed. TKerefore, our results suggest tKat tKe period of recover\ and tKe resulting increase in tKe structural comple[it\ of tKe environment are tKe aspects tKat most contributed to tKe increase of abundance, ricKness and biomass of dung Revista Biotemas, 27 (3), setembro de 2014 200 J. Z. Bett et al. beetles in tKe area recovered for a longer time period, con¿rming tKat dung beetles Kave a strong potential to be used as ecological indicators in areas in tKe process of environmental recover\. HALFFTER, G.; FAVILA, M. E. 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