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Espécies Melitófilas da restinga do Parque Estadual Paulo César Vinha, Espírito Santo

2016; Museu de Biologia Professor Mello Leitão; Volume: 38; Issue: 2 Linguagem: Inglês

ISSN

0103-9121

Autores

Cléber Covre, Tânia Mara Guerra,

Tópico(s)

Fern and Epiphyte Biology

Resumo

As areas de restinga do Espirito Santo sao locais de grande diversidade de especies vegetais, contudo carecem de estudos, principalmente os relacionados as interacoes ecologicas. Ao longo de um ano, foram estudadas 18 especies vegetais melitofilas, distribuidas em 13 familias presentes em uma area de restinga do Parque Estadual Paulo Cesar Vinha (PEPCV). O semestre chuvoso (agosto a marco) apresentou 83,3% das especies floridas (N=15). No semestre seco, as plantas floridas variaram entre 5% e 50% ate agosto; em setembro nao houve floracao. As especies melitofilas encontradas sao predominantemente hermafroditas (56%), mas, especies dioicas (22%) e monoicas (17%) tambem estao presentes. As flores melitofilas encontradas oferecem polen/nectar (50%), polen (39%), polen/oleo (6%) ou polen/resina (5%) como recurso floral. A maioria das plantas estudadas tem floracao anual (89%). A maior parte destas especies anuais e as duas plantas subanuais (11%) tem floracao macica com flores organizadas em inflorescencias (83%). As especies de Chamaecrista (17%) exibiram floracao anual extensa e foram consideradas de grande importância para a manutencao das populacoes de abelhas, devido a disponibilidade de alimento por varios meses do ano. ( Mellitophilous species from the restinga in the Paulo Cesar Vinha State Park, Espirito Santo ). Tropical coastal vegetation (restinga) areas at Espirito Santo State presents high diversity of plant species, however lack of studies, especially those related to floral biology of melittophilous species. During one year long, 18 melittophilous species in 13 families were recorded. Raining season (from October to March) presented 83.3% of the flowering species (N=15). During dry season (from April to September), flowering plants ranged from 5% to 50% until August; in September there was no blooming. Melittophilous species are predominantly hermaphroditic (56%), but dioecious (22%) and monoecious (17%) species are also present. Melittophilous flowers offer pollen/nectar (50%), pollen (39%), pollen/oil (6%) or pollen/resin (5%) as floral resources. Most of mellithophilous plants have annual blooming (89%). Most of annual species and two sub-annual plants (11%) have massive bloom with flowers arranged in inflorescences (83%). C hamaecrista species (17%) exhibited annual and extended flowering and were very important to bee population maintenance because they provide floral resource through the year.

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