Orientation and Navigation in Vertebrates

Rozhok, Andrii

doi:10.1007/978-3-540-78719-8

Cited by 20 publications

(8 citation statements)

References 376 publications

(615 reference statements)

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“…Hence, the ability to move from one place to another in an eYcient way is an important factor for survival. For this purpose, animals can use a variety of spatial information such as beacons, landmarks, overall spatial geometry, sun or magnetic compasses, celestial polarization and self-generated cues for dead reckoning (reviewed in Rozhok 2008;Shettleworth 2010; see also Kraft et al 2011 for honeybee navigation using polarization). The way diVerent types of spatial information interact has been extensively studied addressing spatial tasks (Healy 1998 and references therein).…”

Section: Introductionmentioning

confidence: 99%

Cuttlefish rely on both polarized light and landmarks for orientation

et al. 2012

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Cuttlefish are sensitive to linear polarization of light, a sensitivity that they use in predation and possibly in intraspecific communication. It has also been shown that cuttlefish are able to solve a maze using visual landmarks. In this study, cuttlefish were trained to solve a Y-maze with the e-vector of a polarized light and landmarks as redundant spatial information. The results showed that cuttlefish can use the e-vector orientation and landmarks in parallel to orient and that they are able to use either type of cue when the other one is missing. When they faced conflicting spatial information in the experimental apparatus, the majority of cuttlefish followed the e-vector rather than landmarks. Differences in response latencies in the different conditions of testing (training with both types of cue, tests with single cue or with conflicting information) were observed and discussed in terms of decision making. The ability to use near field and far field information may enable animals to interpret the partially occluded underwater light field.

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Section: Introductionmentioning

confidence: 99%

Cuttlefish rely on both polarized light and landmarks for orientation

et al. 2012

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“…The biophysical mechanisms underlying magnetoreception are poorly understood, although three mechanisms have been proposed to date 2 : stimulation by electromagnetic induction 3 ; a process based on magnetic minerals such as magnetite 4 5 ; and a radical pair reaction involving photoreceptors 6 7 such as cryptochromes (CRYs), UVA- and blue light-absorbing photoreceptors that contain the flavin adenine dinucleotide (FAD) chromophore. Recent studies have suggested that both the magnetic mineral and radical pair reaction mechanisms coexist in vertebrates, with varying predominance and function depending on the animal species and its lifestyle 8 9 .…”

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confidence: 99%

Zebrafish respond to the geomagnetic field by bimodal and group-dependent orientation

Takebe

Furutani

Wada

et al. 2012

Sci Rep

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A variety of animals use Earth's magnetic field as a reference for their orientation behaviour. Although distinctive magnetoreception mechanisms have been postulated for many migrating or homing animals, the molecular mechanisms are still undefined. In this study, we found that zebrafish, a model organism suitable for genetic manipulation, responded to a magnetic field as weak as the geomagnetic field. Without any training, zebrafish were individually released into a circular arena that was placed in an artificial geomagnetic field, and their preferred magnetic directions were recorded. Individuals from five out of the seven zebrafish groups studied, groups mostly comprised of the offspring of predetermined pairs, showed bidirectional orientation with group-specific preferences regardless of close kinships. The preferred directions did not seem to depend on gender, age or surrounding environmental factors, implying that directional preference was genetically defined. The present findings may facilitate future study on the molecular mechanisms underlying magnetoreception.

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“…Vertebrate animals possess position and acceleration sensors in their inner ears that can be employed for deriving courses steered and distances travelled, for example, by integrating directional and rotational accelerations (for a review, see Rozhok, 2008). And at least some spiders are obviously able to derive both the distance and the direction of travel exclusively from sense organs that monitor the animals' own leg movements (for reviews, see Görner and Claas, 1985;Seyfarth et al, 1982;Barth, 2002;Wehner, 1992).…”

Section: Sensory Inputs For Path Integrationmentioning

confidence: 99%

Odometry and insect navigation

Wolf

2011

Journal of Experimental Biology

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SummaryAnimals have needed to find their way about almost since a free-living life style evolved. Particularly, if an animal has a homeshelter or nesting site -true navigation becomes necessary to shuttle between this home and areas of other activities, such as feeding. As old as navigation is in the animal kingdom, as diverse are its mechanisms and implementations, depending on an organism's ecology and its endowment with sensors and actuators. The use of landmarks for piloting or the use of trail pheromones for route following have been examined in great detail and in a variety of animal species. The same is true for senses of direction -the compasses for navigation -and the construction of vectors for navigation from compass and distance cues. The measurement of distance itself -odometry -has received much less attention. The present review addresses some recent progress in the understanding of odometers in invertebrates, after outlining general principles of navigation to put odometry in its proper context. Finally, a number of refinements that increase navigation accuracy and safety are addressed.

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Orientation and Navigation in Vertebrates

Cited by 20 publications

References 376 publications

Cuttlefish rely on both polarized light and landmarks for orientation

Cuttlefish rely on both polarized light and landmarks for orientation

Zebrafish respond to the geomagnetic field by bimodal and group-dependent orientation

Odometry and insect navigation

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