Butterfly conservation in Southern Africa

Edge, David A.; Mecenero, Silvia

doi:10.1007/s10841-015-9758-5

Cited by 25 publications

(17 citation statements)

References 31 publications

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“…Prior to this research project the description of suitable T. b. brachycerus habitat was in fynbos on north to north-west facing hillsides at an altitude of 120-180 m, with some degree of disturbance that created relatively sparse vegetation patches (Edge 2005). Searches for new populations of the butterfly have therefore been focussed on this biotope.…”

Section: Discussionmentioning

confidence: 99%

“…b. brachycerus used to be very numerous near the Knysna Eastern Heads (Clark and Dickson 1971). Edge (2005) reported on the decline of the Knysna populations, following extensive loss of habitat from property developments and intensified agricultural activities, and by 2009 only one viable colony was extant (P1-see Fig. 1 below), situated on the Pezula Golf Estate.…”

Section: Introductionmentioning

confidence: 99%

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The ecology and conservation of Thestor brachycerus brachycerus (Trimen, 1883): an aphytophagous miletine butterfly from South Africa

Bazin

Edge

2015

J Insect Conserv

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The existing knowledge of the biology and ecology of the butterfly genus Thestor is summarised, and the conservation status of the Critically Endangered Thestor brachycerus brachycerus reviewed. The biotopes of two hitherto unknown littoral colonies are compared with the known inland fynbos site. The size of the extant populations is recorded as a future monitoring baseline. The relationship between habitat structure and territorial behaviour of males is explored. Female oviposition substrates are recorded, and it is inferred that the larvae are aphytophagous. No correlation was detected between vegetation composition and the presence of butterfly populations. A requirement for low level male perching sites to engender territorial and thence mating behaviour was assessed as a key habitat resource. The commonest ant found in pitfall traps both within and outside the butterfly colonies was Anoplolepis custodiens, a known associate of Thestor butterflies. Future research should focus on determining the ant associations and food resources of all larval stages.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The ecology and conservation of Thestor brachycerus brachycerus (Trimen, 1883): an aphytophagous miletine butterfly from South Africa

Bazin

Edge

2015

J Insect Conserv

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“…Dentre os invertebrados, vários organismos têm sido utilizados como bioindicadores dessas transformações (Brown, 1997;Edge, 2005;Uys et al, 2006;Engelbrecht, 2010;McGeoch et al, 2011). Esses organismos podem ser agrupados em três categorias principais: os indicadores ambientais; os indicadores ecoló-gicos e os indicadores de biodiversidade (Hellawell, 1986;Paoletti & Bressan, 1996;Meffe & Carroll, 1997;Flather et al, 1997;Gaston & Blackburn, 1995).…”

Section: Introductionunclassified

Bioindicadores ambientais: insetos como um instrumento desta avaliação

et al. 2014

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Bioindicadores ambientais: insetos como um instrumento desta avaliaçãoAtividades agrícolas, florestais e do setor imobiliário vêm, ao longo do tempo, modificando ambientes ecologicamente estruturados. As consequências são drásticas e, por isso, faz-se necessária a busca por ferramentas e instrumentos para diagnosticar e monitorar a diversidade biológica desses locais. Os insetos têm-se destacado como potenciais organismos bioindicadores e isso se deve ao fato de apresentarem grande capacidade perceptiva, no que se refere a alterações do meio ambiente, principalmente por seu apurado sistema sensorial, que lhes permite qualificar condições ambientais em determinadas situações e, ainda, quantificar danos causados ao meio. Um dos problemas que podem ser associados a este setor é a falta de padronização e definição de protocolos de coleta e avaliação da biodiversidade, para que esses resultados possam ser analisados e extrapolados para diferentes ambientes antropizados. Neste trabalho, é contextualizada a importância da entomofauna como bioindicadora, em ecossistemas. Palavras-chave:Biodiversidade, bioindicadores, impacto ambiental, insetos.

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“…Several papers were concerned with population trends (Swengel and Swengel 2015a, b; including monitoring approaches or conservation at very different spatial scales such as South Africa (Edge and Mecenero 2015) and the vineyards of Washington State in the USA (James et al 2015). Autecological studies are always welcome; Edge and Bazin (2015) contributed an indepth study of the Knysna skolly Thestor brachycerus brachycerus, Č elik et al (2015) a paper on the habitat quality determinants for the false ringlet Coenonympha Oedipus, whilst Tjørnløv et al (2015) focussed on oviposition site selection in the marsh fritillary Euphydryas aurinia.…”

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confidence: 99%