Tree species composition and richness along altitudinal gradients as a tool for conservation decisions: the case of Atlantic semideciduous forest

Rezende, Vanessa Leite; Miranda, Pedro Luiz Silva de; Meyer, Leila; Moreira, Cecília V.; Linhares, Mariana F. M.; Oliveira‐Filho, Ary Teixeira de; Eisenlohr, Pedro V.

doi:10.1007/s10531-015-0939-z

Cited by 22 publications

(9 citation statements)

References 44 publications

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“…The presence of the rare species Trigynaea oblongifolia and Trattinnickia ferruginea reiterates and subsidizes the importance of conserving the studied fragment, which is located in a key area for biodiversity conservation. Furthermore, our results reinforce the evidence found by Rezende et al (2015), according to which areas located at the 0-1,000 m altitudinal range in the Seasonal Semideciduous Atlantic Forest deserve attention in terms of the need for conservation measures, due to their high species richness and high number of endemic and threatened species.…”

Section: Family/speciessupporting

confidence: 90%

Floristic and ecological attributes of a Seasonal Semideciduous Atlantic Forest in a key area for conservation of the Zona da Mata region of Minas Gerais State, Brazil

Rocha

Cupertino‐Eisenlohr

Leoni

et al. 2017

Hoehnea

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-(Floristic and ecological attributes of a Seasonal Semideciduous Atlantic Forest in a key area for conservation of the Zona da Mata region of Minas Gerais State, Brazil). We evaluated the floristic and ecological attributes of a seasonal semideciduous forest remnant (SSF) (500-1,050 m) located in a key area for biodiversity conservation. The importance of the fragment to the ecosystem conservation was revealed by its species richness (253), diversity (Shannon index = 4.6; Simpson's complementary index = 0.98) and evenness (Pielou index = 0.83), which are considered high values for a SSF. Zoochory occurred in 77% of the species, indicating the existence of important biotic interactions that ensure the occurrence of gene flow. We recorded 14 endangered species, among which two are rare (Trigynaea oblongifolia and Trattinnickia ferruginea) and two are indicators of mature forests (Trattinnickia ferruginea and Virola bicuhyba). We confirmed the importance of key areas for biodiversity conservation and of the Atlantic SSF located at the 0-1,000 m altitudinal range. These areas deserve attention from conservationists due to the high species richness and high number of endemic and endangered species. Keywords: Floristic Survey, Endangered Species, Hotspot, Species Distribution RESUMO -(Atributos florísticos e ecológicos de uma Floresta Estacional Semidecidual Atlântica em área-chave para a conservação na Zona da Mata do Estado de Minas Gerais, Brasil). Avaliamos atributos florísticos e ecológicos de um remanescente de Floresta Estacional Semidecidual (FESD) (500-1.050 m) localizado em uma área-chave para conservação da biodiversidade. Evidenciamos a importância da conservação do fragmento devido à riqueza de espécies arbóreas (253), diversidade (Índice de Shannon = 4,6; Índice complementar de Simpson = 0,98) e equabilidade (Índice de Pielou = 0,83), que são considerados valores altos para uma FESD. A síndrome zoocórica representou 77% das espécies, sugerindo a existência de interações bióticas importantes para a manutenção do fluxo gênico. Registramos 14 espécies ameaçadas de extinção, dentre as quais duas raras (Trigynaea oblongifolia e Trattinnickia ferruginea) e duas indicadoras de florestas maduras (Trattinnickia ferruginea e Virola bicuhyba). Confirmamos a importância de áreas-chave para a conservação da biodiversidade e da FESD Atlântica localizada em cotas altitudinais de 0-1.000 m, a qual merece atenção dos conservacionistas por apresentarem alta riqueza de espécies e elevado número de espécies endêmicas e ameaçadas.

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Section: Family/speciessupporting

confidence: 90%

Floristic and ecological attributes of a Seasonal Semideciduous Atlantic Forest in a key area for conservation of the Zona da Mata region of Minas Gerais State, Brazil

Rocha

Cupertino‐Eisenlohr

Leoni

et al. 2017

Hoehnea

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“…trees) and climatic data provided by interpolated databases such as WorldClim (Hijmans et al ., ) and CliMond (Kriticos et al ., ) demonstrate strong correlations between floristic composition and climatic shifts (e.g. Toledo et al ., ; Qian, ; Rezende et al ., ; Saiter et al ., ). Such a pattern is based on the physiological requirements of species, especially those related to the availability of both water and energy (Hawkins et al ., ).…”

Section: Introductionmentioning

confidence: 98%

Environmental correlates of floristic regions and plant turnover in the Atlantic Forest hotspot

Saiter

Brown

Thomas

et al. 2016

Journal of Biogeography

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Aim Using a comprehensive floristic database (2616 species, 36,004 occurrence records from 128 unique localities), we model species turnover along the central region of the Atlantic Forest hotspot to (1) test whether local rivers, particularly the Rio Doce, are associated with marked biogeographical breaks, and (2) investigate how regional compositional changes correlate with geo-climatic variables.Location The central region of the Atlantic Forest in eastern Brazil (12°-22°S latitude). MethodsWe combine occurrence and geo-climatic data in a generalized dissimilarity model, obtaining a continuous prediction of species turnover across space and identifying 12 significant geo-climatic predictors of community composition. We use a two-step cluster analysis to classify the turnover map into major floristic regions based on the natural subgroups observed. We further divide each major floristic region into smaller sub-regions based on natural subgroups statistically identified by the two-step cluster analyses.Results High levels of turnover in species composition occurred around latitudes 18°-19°S, c. 50-100 km north of the Rio Doce, and concurred with shifts in availability of both humidity and energy. We identified three major floristic regions in the central region of the Atlantic Forest, which we called Bahia Interior Forests, Bahia Coastal Forests, and the Kren ak-Waitak a Forestseach of them divided into two to four subregions.Main conclusions Our results suggest that local climatic conditions, not riverine barriers, drive biogeographical shifts in this region -a finding that supports studies of current and historical determinants of the composition of the Atlantic Forest biota. Floristic composition at higher elevations (> 600 m) is clearly distinct from those in lower elevations, likely as a result of physiological constraints imposed by cooler climates in the former. Floristic regions here identified from observed communities substantially improve the maps currently employed for conservation planning in a shrinking hotspot.

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“…Next point is the study of the altitude impact on tree taxa distribution. Rezende et al (2015) concluded that altitude belongs to major environmental parameters which can be used for developing a forest conservation strategy. The aim of our studyto estimate abiotic factors (local temperature, relative humidity and lighting) impact on photosynthetic and antioxidant systems of coastal forest trees Quercus robur L. (an oak) and Fraxinus excelsior L. (an ash) associated with the different river slope altitudes.…”

Section: Introductionmentioning

confidence: 99%

Metabolic Responses of Steppe Forest Trees to Altirude-Associated Local Environmental Changes

Lykholat¹,

Khromyk²,

Ivanko³

et al. 2016

AgricultForest

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SUMMARYThe effect of altitude-associated environmental gradient on leaves metabolic features of Quercus robur L. (an oak) and Fraxinus excelsior L. (an ash) was investigated in the natural coastal forest at Bellegarde' International Biosphere Reserve in Steppe zone, Ukraine. Decrease in relative humidity contrary to increase in temperature and lighting under the forest canopy were observed on the river steep bank with altitudinal elevation from lower (52 m a.s.l.) to middle (74 m.), and upper (96 m). Responses of tree leaves photosynthetic and antioxidant systems to the environmental local changes were studied by measuring chlorophyll (Chl) content, as well as catalase and peroxidase activities. Decrease in Chl amount in the ash leaves at middle and upper altitudes (17 and 38% compared with lower), along with increase (8% and 13%, respectively) in the oak leaves was found out. Chl content was determined to correlate with light, temperature, and humidity in both leaves of ash (respectively, r = -0.94, r = -0.92, r = 0.90) and oak (r = 0.95, r = 0.93, r = -0.90). Catalase activity grew with increasing altitude in leaves of ash (2 and 2.2 fold compared to lower altitude) and oak (1.2 and 1.4 fold) as well. Contribution of catalase to the total antioxidant enzymes activity enhanced in leaves of both species with increasing altitude. The results confirmed high sensitivity of steppe forest trees even to slight altitude-associated environmental deviations. Data obtained can be used to assess the adaptive potential of woody species to the climate changes aiming towards greater aridity traits and select tree species for planted forest creation as well.

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Tree species composition and richness along altitudinal gradients as a tool for conservation decisions: the case of Atlantic semideciduous forest

Cited by 22 publications

References 44 publications

Floristic and ecological attributes of a Seasonal Semideciduous Atlantic Forest in a key area for conservation of the Zona da Mata region of Minas Gerais State, Brazil

Floristic and ecological attributes of a Seasonal Semideciduous Atlantic Forest in a key area for conservation of the Zona da Mata region of Minas Gerais State, Brazil

Environmental correlates of floristic regions and plant turnover in the Atlantic Forest hotspot

Metabolic Responses of Steppe Forest Trees to Altirude-Associated Local Environmental Changes

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