Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Kristian Beedholm"'
Autor:
Astrid Saermark Uebel, Michael Bjerre Pedersen, Kristian Beedholm, Laura Stidsholt, Marie Rosenkjaer Skalshøi, Ilias Foskolos, Peter Teglberg Madsen
Publikováno v:
BMC Zoology, Vol 9, Iss 1, Pp 1-12 (2024)
Abstract Most bats hunt insects on the wing at night using echolocation as their primary sensory modality, but nevertheless maintain complex eye anatomy and functional vision. This raises the question of how and when insectivorous bats use vision dur
Externí odkaz:
https://doaj.org/article/8bf4f95bb908422e8dda57e28a11aba9
Autor:
Signe M. M. Brinkløv, Jamie Macaulay, Christian Bergler, Jakob Tougaard, Kristian Beedholm, Morten Elmeros, Peter Teglberg Madsen
Publikováno v:
Methods in Ecology and Evolution, Vol 14, Iss 7, Pp 1747-1763 (2023)
Abstract The affordability, storage and power capacity of compact modern recording hardware have evolved passive acoustic monitoring (PAM) of animals and soundscapes into a non‐invasive, cost‐effective tool for research and ecological management
Externí odkaz:
https://doaj.org/article/86627ee02e244b9b8f33aa252cd2d0b7
Publikováno v:
Biology Open, Vol 6, Iss 4, Pp 525-529 (2017)
Echolocating animals reduce their output level and hearing sensitivity with decreasing echo delays, presumably to stabilize the perceived echo intensity during target approaches. In bats, this variation in hearing sensitivity is formed by a call-indu
Externí odkaz:
https://doaj.org/article/1012a86ae16c429dadad03dbeb96b880
Publikováno v:
Royal Society Open Science, Vol 4, Iss 7 (2017)
Acoustic harassment devices (AHD) or ‘seal scarers’ are used extensively, not only to deter seals from fisheries, but also as mitigation tools to deter marine mammals from potentially harmful sound sources, such as offshore pile driving. To test
Externí odkaz:
https://doaj.org/article/ba1fdcd279db4534b0b15c721d941b2b
Autor:
Danuta M Wisniewska, John M Ratcliffe, Kristian Beedholm, Christian B Christensen, Mark Johnson, Jens C Koblitz, Magnus Wahlberg, Peter T Madsen
Publikováno v:
eLife, Vol 4 (2015)
Toothed whales use sonar to detect, locate, and track prey. They adjust emitted sound intensity, auditory sensitivity and click rate to target range, and terminate prey pursuits with high-repetition-rate, low-intensity buzzes. However, their narrow a
Externí odkaz:
https://doaj.org/article/5edc2cfe22394ea7a7864f93bac5fb36
Autor:
Line Hermannsen, Jakob Tougaard, Kristian Beedholm, Jacob Nabe-Nielsen, Peter Teglberg Madsen
Publikováno v:
PLoS ONE, Vol 10, Iss 7, p e0133436 (2015)
Airguns used in seismic surveys are among the most prevalent and powerful anthropogenic noise sources in marine habitats. They are designed to produce most energy below 100 Hz, but the pulses have also been reported to contain medium-to-high frequenc
Externí odkaz:
https://doaj.org/article/b8991f534e8a4ad09a82b9aa2f6b3548
Autor:
Line A Kyhn, Jakob Tougaard, Kristian Beedholm, Frants H Jensen, Erin Ashe, Rob Williams, Peter T Madsen
Publikováno v:
PLoS ONE, Vol 8, Iss 5, p e63763 (2013)
Odontocetes produce a range of different echolocation clicks but four groups in different families have converged on producing the same stereotyped narrow band high frequency (NBHF) click. In microchiropteran bats, sympatric species have evolved the
Externí odkaz:
https://doaj.org/article/2601d17f7f024f12b06f114b6237b470
Publikováno v:
Toxics, Vol 4, Iss 3, p 22 (2016)
Reproductive success manifested by spawning and fertilization, in most fish, depends partly on an appropriate courtship behavior by both sexes. The zebrafish reproductive behavior can be resolved in some of its constituent elements by a computerized
Externí odkaz:
https://doaj.org/article/6f9b04020a1c41d893508c9c870b55cd
Publikováno v:
The Effects of Noise on Aquatic Life ISBN: 9783031104176
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6323faa59e9f7822ccb1149fb56f77df
https://doi.org/10.1007/978-3-031-10417-6_166-1
https://doi.org/10.1007/978-3-031-10417-6_166-1
Publikováno v:
Tougaard, J, Beedholm, K & Madsen, P T 2022, ' Thresholds for noise induced hearing loss in harbor porpoises and phocid seals ', Journal of the Acoustical Society of America, vol. 151, no. 6, pp. 4252-4263 . https://doi.org/10.1121/10.0011560
Intense sound sources, such as pile driving, airguns, and military sonars, have the potential to inflict hearing loss in marine mammals and are, therefore, regulated in many countries. The most recent criteria for noise induced hearing loss are based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9f0393501ab1eaab3c657a3e579caac
https://pure.au.dk/portal/da/publications/thresholds-for-noise-induced-hearing-loss-in-harbor-porpoises-and-phocid-seals(32376e10-36c6-443d-99c7-e4b0345339a9).html
https://pure.au.dk/portal/da/publications/thresholds-for-noise-induced-hearing-loss-in-harbor-porpoises-and-phocid-seals(32376e10-36c6-443d-99c7-e4b0345339a9).html