Browsing by Author "Antunes, Ricardo"
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Cetaceans and naval sonar : the 3S-2009 cruise report
Kvadsheim, Petter H.; Lam, Frans-Peter; Miller, Patrick; Kleivane, Lars; Alves, Ana Catarina; Antunes, Ricardo; Bocconcelli, Alex; van IJsselmuide, Sander; Olivierse, Marijke; Visser, Fleur (2009)Forsvaret har utrykt behov for å få kartlagt sjøpattedyrs følsomhet overfor sonarsignaler, også atferdsmessige påvirkninger. 3S-konsortiet, som for tiden består av fire partnere, FFI, Woods Hole Oceanographic Institution ... -
Dose-response relationships for the onset of avoidance of sonar by free-ranging killer whales
Miller, Patrick J.O.; Antunes, Ricardo; Wensveen, Paul; Samarra, Filipa I. P.; Alves, Ana Catarina; Tyack, Peter L.; Kvadsheim, Petter Helgevold; Kleivane, Lars; Lam, Frans-Peter A.; Ainslie, Michael A; Thomas, Len (2014)Eight experimentally controlled exposures to 1−2 kHz or 6−7 kHz sonar signals were conducted with four killer whale groups. The source level and proximity of the source were increased during each exposure in order to reveal ... -
High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas)
Antunes, Ricardo; Kvadsheim, Petter Helgevold; Lam, Frans-Peter A.; Tyack, Peter L.; Thomas, Len; Wensveen, Paul J.; Miller, Patrick James O'Malley (2014)The potential effects of exposing marine mammals to military sonar is a current concern. Dose–response relationships are useful for predicting potential environmental impacts of specific operations. To reveal behavioral ... -
Pilot Whales Attracted to Killer Whale Sounds: Acoustically-Mediated Interspecific Interactions in Cetaceans
Curé, Charlotte; Antunes, Ricardo; Samarra, Filipa; Alves, Ana Catarina; Visser, Fleur; Kvadsheim, Petter Helgevold; Miller, Patrick J.O. (2012)In cetaceans’ communities, interactions between individuals of different species are often observed in the wild. Yet, due to methodological and technical challenges very little is known about the mediation of these ... -
Responses of male sperm whales (Physeter macrocephalus) to killer whale sounds: implications for anti-predator strategies
Curé, Charlotte; Antunes, Ricardo; Alves, Ana Catarina; Visser, Fleur; Kvadsheim, Petter Helgevold; Miller, Patrick J.O. (2013)Interactions between individuals of different cetacean species are often observed in the wild. Killer whales (Orcinus orca) can be potential predators of many other cetaceans, and the interception of their vocalizations ... -
The social context of individual foraging behaviour in long-finned pilot whales (Globicephala melas)
Visser, Fleur; Miller, Patrick J.O.; Antunes, Ricardo; Oudejans, Machiel G; Mackenzie, M.L.; Aoki, K.; Lam, Frans-Peter A.; Kvadsheim, Petter Helgevold; Huisman, J; Tyack, Peter L. (2014)Long-finned pilot whales (Globicephala melas) are highly social cetaceans that live in matrilineal groups and acquire their prey during deep foraging dives. We tagged individual pilot whales to record their diving behaviour. ... -
Vocal matching of naval sonar signals by long-finned pilot whales (Globicephala melas)
Alves, Ana; Antunes, Ricardo; Bird, Anna; Tyack, Peter L.; Miller, Patrick James O'Malley; Lam, Frans-Peter A.; Kvadsheim, Petter Helgevold (2014)