Ficha de avaliação EICAT
Tubastraea tagusensis
MO · Moderado
Avaliação histórica recuperada de registros do SIGEEI. A estrutura e os campos foram preservados; a confirmação permanece pendente.
Identificação e síntese
Taxonomia registrada
Classificação canônica recuperada da integração com o GBIF. O sistema explicita os níveis que a própria resposta do GBIF não informa.
Avaliação de impactos
1. Redução no desempenho de indivíduos da biota nativa
Resposta: Sim
Mecanismos selecionados: (1) Competição
Evidências por mecanismo
A survey of three invaded sites found that in 100% of Tubastraea–Mussismilia contacts, Mussismilia showed dam- age when at distances of < 5 cm from the aliens, but the effect was not reciprocal. Both aliens caused necrosis to the near side of the native colony dead areas were usually overgrown by sponges or crustose coralline algae, and sometimes even by Tubastraea recruits. Most colonies developed deformations at the contact zone. The evidence suggests that the two azooxanthellates are competitively dominant and can reduce or exclude the native coral. This has implications that go farther than local exclusion or extinction: the competitive removal of the native coral reduces production, so ecosystem functions may be compromised (Creed 2006).
Referências: Creed, J.C. 2006. Two invasive alien azooxanthellate corals, Tubastraea coccinea and Tubastraea tagusensis, dominate the native zooxanthellate Mussismilia hispida in Brazil, Coral Reefs 25: 350.
2. Declínio no tamanho populacional de espécie nativa
Resposta: Sim
Mecanismos selecionados: (1) Competição
Evidências por mecanismo
A survey of three invaded sites found that in 100% of Tubastraea–Mussismilia contacts, Mussismilia showed dam- age when at distances of < 5 cm from the aliens, but the effect was not reciprocal. Both aliens caused necrosis to the near side of the native colony dead areas were usually overgrown by sponges or crustose coralline algae, and sometimes even by Tubastraea recruits. Most colonies developed deformations at the contact zone. The evidence suggests that the two azooxanthellates are competitively dominant and can reduce or exclude the native coral. This has implications that go farther than local exclusion or extinction: the competitive removal of the native coral reduces production, so ecosystem functions may be compromised (Creed 2006).
Referências: Creed, J.C. 2006. Two invasive alien azooxanthellate corals, Tubastraea coccinea and Tubastraea tagusensis, dominate the native zooxanthellate Mussismilia hispida in Brazil, Coral Reefs 25: 350.
3. Extinção local de população nativa
Resposta: Não
4. Reversibilidade da extinção local após remoção do táxon
Resposta: Nenhuma extinção registrada