Zobrazeno 1 - 10
of 121
pro vyhledávání: '"John H. Costello"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-8 (2024)
Abstract Free-swimming polychaetes are common in marine habitats and exhibit a unique form of swimming whereby a metachronal wave occurs simultaneously with a bending body wave. This body wave is unusual among swimming animals because it travels in t
Externí odkaz:
https://doaj.org/article/6d29ab8e7c174ba5aeea4b0bcac19e89
Autor:
Guilherme M. von Montfort, John H. Costello, Sean P. Colin, André C. Morandini, Alvaro E. Migotto, Maximiliano M. Maronna, Marcelo Reginato, Hiroshi Miyake, Renato M. Nagata
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract Ephyrae, the early stages of scyphozoan jellyfish, possess a conserved morphology among species. However, ontogenetic transitions lead to morphologically different shapes among scyphozoan lineages, with important consequences for swimming bi
Externí odkaz:
https://doaj.org/article/620f7d8a7a9f4abc985e2ad4ee116f14
Autor:
Betsy Potter, Marco Corrales-Ugalde, James P. Townsend, Sean P. Colin, Kelly R. Sutherland, John H. Costello, Richard Collins, Brad J. Gemmell
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract Oceanic ctenophores are widespread predators on pelagic zooplankton. While data on coastal ctenophores often show strong top-down predatory impacts in their ecosystems, differing morphologies, prey capture mechanisms and behaviors of oceanic
Externí odkaz:
https://doaj.org/article/218ddd9aae0848d38f8117440811dfbd
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract Ecologists and evolutionary biologists have been looking for the key(s) to the success of scyphomedusae through their long evolutionary history in multiple habitats. Their ability to generate young medusae (ephyrae) via two distinct reproduc
Externí odkaz:
https://doaj.org/article/02b8036b6176466d87592782d0e7f0d8
Publikováno v:
Royal Society Open Science, Vol 6, Iss 3 (2019)
Gelatinous zooplankton exhibit a wide range of propulsive swimming modes. One of the most energetically efficient is the rowing behaviour exhibited by many species of schyphomedusae, which employ vortex interactions to achieve this result. Ctenophore
Externí odkaz:
https://doaj.org/article/1179632a69ad4c8a9495a8674979b9a8
Autor:
Nicole W. Xu, James P. Townsend, John H. Costello, Sean P. Colin, Brad J. Gemmell, John O. Dabiri
Publikováno v:
Biomimetics, Vol 5, Iss 4, p 64 (2020)
Biohybrid robotic designs incorporating live animals and self-contained microelectronic systems can leverage the animals’ own metabolism to reduce power constraints and act as natural chassis and actuators with damage tolerance. Previous work estab
Externí odkaz:
https://doaj.org/article/d6fd9d313a894140882c610b6217c360
Autor:
John O. Dabiri, Sean P. Colin, Brad J. Gemmell, Kelsey N. Lucas, Megan C. Leftwich, John H. Costello
Publikováno v:
Fluids, Vol 5, Iss 3, p 106 (2020)
Turning maneuvers by aquatic animals are essential for fundamental life functions such as finding food or mates while avoiding predation. However, turning requires resolution of a fundamental dilemma based in rotational mechanics: the force powering
Externí odkaz:
https://doaj.org/article/7886e5483541426f97f9be2bac5f3133
Publikováno v:
Fluids, Vol 5, Iss 2, p 60 (2020)
The feeding current of scyphomedusae entrains and transports surrounding fluids and prey through trailing tentacles to initiate encounters with prey. After contact, most prey are retained for ingestion. However, the probability that a contact will oc
Externí odkaz:
https://doaj.org/article/fcf2ecf13fa74ab09ab32988b12340b3
Publikováno v:
Biomimetics, Vol 4, Iss 3, p 62 (2019)
The colonial cnidarian, Nanomia bijuga, is highly proficient at moving in three-dimensional space through forward swimming, reverse swimming and turning. We used high speed videography, particle tracking, and particle image velocimetry (PIV) with fra
Externí odkaz:
https://doaj.org/article/b3975ccb03774499b4624e25b85589d3
Publikováno v:
Biomimetics, Vol 4, Iss 3, p 44 (2019)
Swimming bell kinematics and hydrodynamic wake structures were documented during multiple pulsation cycles of a Eutonina indicans (Romanes, 1876) medusa swimming in a predominantly linear path. Bell contractions produced pairs of vortex rings with op
Externí odkaz:
https://doaj.org/article/eeb9a8328ff14de58b37a4b25db2c0ce