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The expansion and establishment of the New Zealand mud snail Potamopyrgus antip...
Órfão, Inês; Ramalhosa, Patrício; Kerckhof, Francis; João Canning-Clode, JoãoThis study reports the spread of the New Zealand mud snail Potamopyrgus antipodarum throughout freshwater ecosystems of Madeira Island, located in the NE Atlantic. Potamopyrgus antipodarum was first detected in 2017–2018 in two streams located in the north coast of the island. Since then, we have visually inspected the island's freshwater ecosystems and detected this gastropod in nine other streams. Previous ev...
The role of intrasexual competition on the evolution of male-male courtship dis...
Órfão, Inês; Carvalho, Constança; Rodrigues, Inês; Ascensão, Leonor; Pedaccini, Marie; Vicente, Luís; Barbosa, Miguel; Varela, Susana A. M.Background: Evidence of male-male courtship display is widespread across the animal kingdom. Yet, its function and evolutionary origin remain unclear. Here, we hypothesise that male-male courtship display evolved in response to selection pressure exerted by intrasexual competition during male-female courtship interactions. Intrasexual competition can be caused by bystander male pressure through eavesdropping an...
The role of intrasexual competition on the evolution of male-male courtship dis...
Órfão, Inês; Carvalho, Constança; Rodrigues, Inês; Ascensão, Leonor; Pedaccini, Marie; Vicente, Luís; Barbosa, Miguel; Varela, S.A.M.Background Evidence of male-male courtship display is widespread across the animal kingdom. Yet, its function and evolutionary origin remain unclear. Here, we hypothesise that male-male courtship display evolved in response to selection pressure exerted by intrasexual competition during male-female courtship interactions. Intrasexual competition can be caused by bystander male pressure through eavesdropping and...
From plates to baits: using a remote video foraging system to study the impact ...
Chebaane, Sahar; Canning-Clode, João; Ramalhosa, Patrício; Belz, Janina; Castro, Nuno; Órfão, Inês; Sempere-Valverde, Juan; Engelen, AschwinMarinas are a gateway for the introduction and establishment of non-indigenous species (NIS). In these habitats, competition and predation are crucial determinants for NIS establishment and invasiveness. However, fish trophic preferences and biotic effects inside marinas are poorly known. This study proposes a novel method that combines the deployment of settlement plates to recruit different assemblages, follo...
Stone-stacking as a looming threat to rock-dwelling biodiversity
Rocha, Ricardo; Borges, Paulo A. V.; Cardoso, Pedro; Kusrini, Mirza D.; Martín-Esquivel, José L.; Menezes, Dilia; Ferreira, Mário Mota; Nunes, Sara F.This letter to the editor describes the surge of “photo-friendly” stacks of stones as an emerging tourism-associated threat to rock-dwelling biodiversity.