12 research outputs found

    Discolouring the Amazon Rainforest: how deforestation is affecting butterfly coloration

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    This is the author accepted manuscript. The final version is available from Springer via the DOI in this record .Butterflies are among the most colourful organisms in the world and colour plays a central role in many of their life-history strategies. However, the efficacy of coloration strategies in these and other animals could be affected by sudden environmental changes, including anthropogenic disturbances such as habitat loss and fragmentation. Here we investigate the effect of forest disturbance gradients on the colours of fruit-feeding butterflies in the Amazon Rainforest. The disturbance gradients tested represented habitat-size (continuous primary forests versus forest fragments of 1, 10 and 100 ha) and succession gradients (continuous primary forests, 30 year old secondary forests, and three year old early successional forests). Using digital image analysis, we obtained intrinsic measures of butterfly colour patches corresponding to hue, saturation, brightness, in addition to measures of the contrast among patches and of the overall wing-colour diversity corresponding to 220 individuals, belonging to 60 species. Our results showed that butterflies in the secondary forest and continuous primary forest are more colourful than those found in early succession and fragments of forests. Individuals occurring in forests of early succession showed higher average values of hue and saturation, but lower brightness. Accompanying changes in colour composition, wing-colour diversity among species was lower in human-disturbed habitats, such as those of early forest succession and secondary forest. Forest fragments have smaller effects on butterfly colour composition, indicating that well-structured forest habitats can house butterfly assemblages with more diverse phenotypic features and colours. We show how high deforestation rates in recent years is linked with negative changes in functional coloration strategies (e.g. camouflage, warning colours), something that has to date been poorly explored or demonstrated for butterflies. Specifically, human interference has apparently placed butterflies under strong selection for lower diversity in their colours and range of defensive strategies. Those species that are most colourful are the first to be locally extinguished, likely due to removal of native vegetation and increased exposure to predators, and more broadly owing to inhospitable environmental conditions. This illustrates an accelerated loss of local fauna and a “discolouration” of the Amazonian butterflies due to anthropogenic impacts.Thomas Lovejoy research fellowshi

    Maximized sampling of butterflies to detect temporal changes in tropical communities

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    Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)There are few papers describing long-term fluctuations and general patterns of temporal diversity in butterfly assemblages in the Neotropical region. The present paper presents a long-term study on the variation in richness and composition of butterflies in a fragment of semi-deciduous forest in Southeastern Brazil, and examines the viability of using maximized butterfly transect counts as a methodology to rapidly and adequately access the local characteristics of butterfly communities. Based on the eight annual standard lists, 518 species in six butterfly families were recorded, representing 74 % of the total butterfly fauna known from the study site. Hesperiidae was the richest family (248 species), followed by Nymphalidae (154), Lycaenidae (49), Riodinidae (29), Pieridae (26), and Papilionidae (12). The accumulation curves show that 8 years of sampling were not enough to result in stable species totals for all butterfly families, especially Hesperiidae and Lycaenidae, which are still increasing in number of species. A great similarity in species composition was observed among all the years (54 %). Comparing the similarity between two standard lists at different time intervals (from 1 to 8 years), a clear pattern of increasing dissimilarity was observed in most families. Our results show that the maximized sampling method is effective in revealing temporal patterns of diversity across several years and could be valuable in monitoring temporal variation in butterfly assemblages for conservation purposes, since the obtained standard lists can be successfully compared to temporal patterns over large periods of time.173615622Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)FAPESP [2011/08433-8]FAPESP [04/05269-9]CNPq [300282/2008-7]FAPESP [2011/50225-3

    The Endangered Butterfly Charonias theano (Boisduval) (Lepidoptera: Pieridae): Current Status, Threats and its Rediscovery in the State of Sao Paulo, Southeastern Brazil

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    Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)The pierid Charonias theano (Boisduval), an endangered butterfly species, has been rarely observed in nature, and has not been recorded in the state of Sao Paulo in the last 50 years despite numerous efforts to locate extant colonies. Based on museum specimens and personal information, C. theano was known from 26 sites in southeastern and southern Brazil. Recently, an apparently viable population was recorded in a new locality, at Serra do Japi, Jundiai, Sao Paulo, with several individuals observed during two weeks in April, 2011. The existence of this population at Serra do Japi is an important finding, since this site represents one of the few large forested protected areas where the species could potentially persist not only in the state of Sao Paulo, but within its entire historical distribution.406669676Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)FAPESP [10/51340-8, 04/05269-9]CNPq [300282/2008-7]FAPESP [11/50225-3

    NATURAL HISTORY, NEW RECORDS, AND NOTES ON THE CONSERVATION STATUS OF CYANOPHRYS BERTHA (JONES) (LEPIDOPTERA: LYCAENIDAE)

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    Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)The natural history of the potentially threatened hairstreak butterfly Cyanophrys bertha (Jones) is discussed, and the morphology of its penultimate and last instar larvae and pupa are described and illustrated. New distribution records from southern Brazil are provided. Based on morphological and ecological traits of immatures and adults, the conservation status of this species is discussed and compared with other sympatric Eumaeini.11215460Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)CNPq [140183/2006-0, 478787/2001-4

    A New Genus and Species of Euptychiina (Lepidoptera: Nymphalidae: Satyrinae) from Southern Brazil

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    Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)This paper describes a new genus and a new species of Euptychiina from open grassland habitats (campos de cima da serra) in southern Brazil. The systematic position of this new taxon is discussed based on morphological and molecular data, and it is considered sister to Taydebis Freitas. Since the cam pos vegetation is considered endangered due to anthropogenic activities, this butterfly species deserves attention and should be included in future conservation plans for this biome.402231237Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)National Science Foundation [DEB-0527441]Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)CNPq [473838/2006-0, 472175/2007-6, 300282/2008-7]FAPESP [00/01484-1, 04/05269-9, 98/05101-8]National Science Foundation [DEB-0527441]CNPq [480619/2008-5, 302662/2009-0

    Paulogramma hydarnis (n. comb.) (Nymphalidae: Biblidinae): distribution, systematic position, and conservation status of a rare and endangered butterfly

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    CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOFAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOThe nymphalid Paulogramma hydarnis (Godart) (n. comb., previously in the genus Callicore) is an endangered butterfly present in a few montane sites in the Atlantic Forest in the Southeastern Brazil. The precise systematic position of P. hydarnis was previously unknown. Based on molecular data, we find that it is sister to Paulogramma pygas (Godart) (n. comb., also previously in Callicore), a common and widespread species in the Neotropics. In addition, we find that Callicore is not monophyletic and that "Callicore" hydarnis (along with other species) is more related to the genus Paulogramma, and should thus be placed in that genus. The genus Paulogramma is now composed by the following species: Paulogramma pyracmon (Godart), Paulogramma eunomia (Hewitson) n. comb., Paulogramma hydarnis (Godart) n. comb., Paulogramma hystaspes (Fabricius) n. comb., Paulogramma pygas (Godart) n. comb., and Paulogramma tolima (Hewitson, 1852) n. comb. Museum specimens and field data report P. hydarnis in four sites in Southeastern Brazil. Recently, P. hydarnis was recorded for the first time at Parque Nacional do Capara, states of Espirito Santo and Minas Gerais, expanding its distribution about 200 km northward of the previously known limit. Although regularly recorded in some sites, most records are historic, before the 1960s, and the current conservation situation of this species is delicate, deserving attention.The nymphalid Paulogramma hydarnis (Godart) (n. comb., previously in the genus Callicore) is an endangered butterfly present in a few montane sites in the Atlantic Forest in the Southeastern Brazil. The precise systematic position of P. hydarnis was previously unknown. Based on molecular data, we find that it is sister to Paulogramma pygas (Godart) (n. comb., also previously in Callicore), a common and widespread species in the Neotropics. In addition, we find that Callicore is not monophyletic and that "Callicore" hydarnis (along with other species) is more related to the genus Paulogramma, and should thus be placed in that genus. The genus Paulogramma is now composed by the following species: Paulogramma pyracmon (Godart), Paulogramma eunomia (Hewitson) n. comb., Paulogramma hydarnis (Godart) n. comb., Paulogramma hystaspes (Fabricius) n. comb., Paulogramma pygas (Godart) n. comb., and Paulogramma tolima (Hewitson, 1852) n. comb. Museum specimens and field data report P. hydarnis in four sites in Southeastern Brazil. Recently, P. hydarnis was recorded for the first time at Parque Nacional do Capara, states of Espirito Santo and Minas Gerais, expanding its distribution about 200 km northward of the previously known limit. Although regularly recorded in some sites, most records are historic, before the 1960s, and the current conservation situation of this species is delicate, deserving attention.433218226CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOFAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOFAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOCNPq [302585/2011-7]National Science Foundation [DEB-1256742]FAPESP [10/51340-8, 2011/08433-8]CNPq [163119/2013-9]CNPq [563332/2010-7, 564954/2010-1, 50/2010]FAPESP [11/50225-3]302585/2011-7; 163119/2013-9; 563332/2010-7; 564954/2010-12010/51340-8; 2011/08433-8; 2011/50225-
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