A comparison of alternative methods for estimating population density of the fiddler crab Uca annulipes at Saco Mangrove, Inhaca Island (Mozambique)




Visual counts of surface-active crabs both by binocular and burrow counting methods have been used in many studies to estimate population density. However, their reliability has not yet been assessed comparatively. Three methods for estimating the abundance of fiddler crabs Uca annulipes in a mangrove forest (Inhaca Island, Mozambique) were compared from three different sub-areas: two sub-areas inundated only during spring tides and one sub-area inundated in both spring and neap tides. Burrow, binocular and direct (excavation) counting methods were performed by plotting ten 0.25 m2 quadrats in each sub-area over the four moon phases.








- Maputo (cidade)


- Inglês


- Nenhuma restrição


- Biodiversidade Marinha;
- Biodiversidade Costeira


- Artigo com revisão pelos pares e teses universitárias


- Identificação, Monitoria, Indicadores e Avaliações


- Reserva Marinha Parcial da Ponta do Ouro;
- Reserva Biológica de Inhaca



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