Abstract
Este estudo descreve um caso incomum de pisoteio nos costões rochosos entremarés pela maior espécie de mamífero roedor, a capivara, Hydrochoerus hydrochaeris (Linnaeus, 1766). Grupos de capivaras foram observados nadando, mergulhando e descansando ao longo de costões rochosos do Parque Estadual da Ilha Anchieta, Ubatuba, São Paulo. São discutidos os possíveis efeitos do pisoteio diário em costões rochosos por uma grande e incontrolada população de capivaras, bem como as intervenções de manejo e pesquisa necessárias.
Highlights
This study describes an unusual case of trampling on intertidal rocky shores by the largest rodent, the capybara, Hydrochoerus hydrochaeris (Linnaeus, 1766)
Human trampling on intertidal reefs can have a negative impact on biota, even at low intensities (FERREIRA; ROSSO, 2009)
There has been an urgent need to eradicate or, at least, control the population, because these herbivores are directly affecting the recruitment of plants and the restoration of the vegetation (BOVENDORP; GALETTI, 2007; ALVAREZ et al, 2008; FADINI et al, 2009)
Summary
This study describes an unusual case of trampling on intertidal rocky shores by the largest rodent, the capybara, Hydrochoerus hydrochaeris (Linnaeus, 1766). The effects of trampling are the reduction of the population, cover and biomass of benthic organisms such as non-crustose algae (SCHIEL; TAYLOR, 1999), bivalves (FERREIRA; ROSSO, 2009), polychaetes (BROWN; TAYLOR, 1999), and barnacles (BROSNAN; CRUMRINE, 1994), thereby changing the population dynamics and diversity of the community (HUFF, 2011; POUR et al, 2013; MICHELI et al, 2016). This communication describes an unusual case of daily trampling on rocky shores of a Brazilian coastal island, caused by an introduced and uncontrolled rodent species, the capybara, Hydrochoerus hydrochoeris (Linnaeus, 1766).
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