Pdf Differential Behavioural And Hormonal Responses Of Voles And Spiny Mice To Owl Calls

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In nature, animals are exposed to a broad range of threats imposed by predators, which may strongly influence the ecology of prey species directly or indirectly by affecting their behavior via fear of predation.

Metrics details. Adaptive behavioural strategies promoting co-occurrence of competing species are known to result from a sympatric evolutionary past. Strategies should be different for indirect resource competition exploitation, e.

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Log In Sign Up. Add Social Profiles Facebook, Twitter, etc. Unfollow Follow Unblock. Other Affiliations:. Locomotor activity in common spiny mice Acomys cahirinuse : the effect of light and environmental complexity more. Rodents typically avoid illuminated and open areas, favoring dark or sheltered environments for activity. While previous studies focused on the effect of these environmental attributes on the level of activity, the present study tested While previous studies focused on the effect of these environmental attributes on the level of activity, the present study tested whether the spatio-temporal structure of activity was also modified in illuminated compared with dark and complex compared with open arenas.

For this, we tested common spiny mice Acomys cahirinus in empty or stone-containing arenas with lights on or lights off. In an illuminated or open arena, spiny mice moved in less frequent but longer trips with relatively long distances between consecutive stops. In contrast, in either a dark arena or an arena with stones, the animals took shorter and more frequent trips, with more stops per trip and shorter inter-stop distances.

In illuminated arenas spiny mice remained mainly along the walls, whereas locomotion in the center was more prevalent in dark empty arenas, and was carried out along convoluted paths. Exploration and navigation in the blind mole rat Spalax ehrenbergi : global calibration as a primer of spatial representation more.

How barn owls Tyto alba visually follow moving voles Microtus socialis before attacking them more. Die hard: A blend of freezing and fleeing as a dynamic defense—implications for the control of defensive behavior more. Rituals are common in religion, sports, culture, and specific life-stages childhood, parenthood, etc.

Here we analyzed Here we analyzed 19 episodes of a Zulu Umsindo dance performed by 10 women. This ritual comprised a common act performed in all dance episodes of all women, personal acts performed consistently by one woman but not by the others, and sporadic acts that varied both among and within women.

There were significantly more sporadic than personal acts, and more personal than common acts, with only one common act that was performed in all 19 dance episodes. Despite this high flexibility, the dance attained a seemingly rigid form due to three properties: i fixed temporal order that was preserved in all the dance episodes; ii a common act that was consistently performed by all women; and iii a high rate of repetition of the common act.

These properties rendered the ritual its rigid form, along with enabling the dancers to display great flexibility in act repertoire. This analysis sheds new light on the content and structure of collective rituals, implicating on the understanding of how social transmission may occur, and giving potential evidence for the Sperberian view on cultural transmission.

Finally, the Zulu dance seems to possess a communicative value in group solidarity without a direct involvement of precautionary systems. The ontogeny of exploratory behavior in the house rat Rattus rattus : The mobility gradient more.

How the neonatal rat gets to the nipple. Changes during development more. How the neonatal rat gets to the nipple: Common motor modules and their involvement in the expression of early motor behavior more. Open-field behavior withstands drastic changes in arena size more. Mice with vestibular deficiency display hyperactivity, disorientation, and signs of anxiety more. Pragmatic and idiosyncratic acts in human everyday routines: The counterpart of compulsive rituals more.

Such routines can seem to resemble pathologic Such routines can seem to resemble pathologic rituals that dominate the motor behavior of obsessive-compulsive disorder OCD and autistic patients. This resemblance raises the question of what differentiates and what is common in normal and pathologic motor behavior.

Indeed, pathologic motor performance is often construed as an extended stereotyped version of normal everyday routines. In this study we applied ethological tools to analyze six motor routines performed by 60 adult human volunteers.

We found that longer normal everyday routines included more repetitions, but not more types of acts, and that in each routine, most acts were performed either by all individuals pragmatic acts or by only one individual idiosyncratic components. Comparing normal routines with OCD rituals revealed that the latter comprise an exaggeration of the idiosyncratic component. Altogether, the present study supports the view that everyday normal routines and pathologic rituals are opposite processes, although they both comprise rigid motor behavioral sequences.

Obsessive-compulsive disorder: a disorder of pessimal non-functional motor behavior more. Moreover, OCD behavior consists of short chains of functional acts bounded by long chains of non-functional acts.

In the third postnatal week, the adult mode of locomotion, the bound, became prominent and synchronous stepping dominated locomotion, gradually replacing alternate stepping. In the present results, the validity of warm-up has been extended to a quantitative perspective: the order in which movement types reached their peak performance was identical to the order of their emergence in ontogeny. Transient modes of locomotion were also employed by gerbil pups during postnatal development, in accordance with changes in body morphology, indicating that there exists a causal link between body design and specific modes of locomotion.

Publication Date: The impact of precaution and practice on the performance of a risky motor task more. The association between threat perception and motor execution, mediated by evolved precaution systems, often results in ritual-like behavior, including many idiosyncratic acts that seem irrelevant to the task at hand. This study tested This study tested the hypothesis that threat-detection during performance of a risky motor task would result in idiosyncratic activity that is not necessary for task completion.

The increased p Rituals, stereotypy and compulsive behavior in animals and humans more. From a survey of the behavior of animals in the wild, in captivity, under the influence of psychoactive drugs and in a model of obsessive-compulsive disorder OCD , we identify that the behavioral repertoire invariably includes motor The concept and parameters of this stable organization of rituals in time and space were used to analyze rituals of OCD patients, compared with control individuals performing the same actions e.

Across a very diverse range of animals and conditions, motor rituals are thus characterized by their close linkage to a few environmental locations and the repeated performance of relatively f Publication Date: Publication Name: Neuroscience and biobehavioral reviews.

Psychostimulant-induced behavior as an animal model of obsessive-compulsive disorder: an ethological approach to the form of compulsive rituals more. Moreover, in both Moreover, in both quinpirole-treated rats and OCD patients, the structure of compulsive rituals appear similar in being composed of relatively few motor acts that are organized in a flexible yet recurrent manner. In addition, the development of compulsive behavior in quinpirole-treated rats is attenuated by the OCD pharmacotherapeutic drug clomipramine.

These similarities support the validity of quinpirole-treated rats as a psychostimulant-induced animal model of OCD. Considering that the induction of compulsive behavior in the rat model involves chronic hyperstimulation of dopamine receptors, this raises the possibility that dopaminergic mechanisms may play a role in OCD, at least in some subtypes of this disorder.

Rodents in open space adjust their behavioral response to the different risk levels during barn-owl attack more. Previous studies have revealed that the response of prey species to predatory risk comprised either freezing when the prey remained immobile , or fleeing when it ran frantically in order to remove itself from the vicinity of the Previous studies have revealed that the response of prey species to predatory risk comprised either freezing when the prey remained immobile , or fleeing when it ran frantically in order to remove itself from the vicinity of the predator.

Other studies, however, have suggested that the prey will adjust its behavior to risk level. Spiny mice dramatically increased the traveled distance upon the appearance of the owl, and kept moving during its attack while taking long trajectories of locomotion. Defensive response in voles dichotomized: in some voles traveled distance dropped when the owl appeared, reaching zero during its attack. In other voles, trave Compulsive checking behavior of quinpirole-sensitized rats as an animal model of Obsessive-Compulsive Disorder OCD : form and control more.

A previous report showed that the open field behavior of rats sensitized to the dopamine agonist quinpirole satisfies 5 performance criteria for compulsive checking behavior. In an effort to extend the parallel between the drug-induced In an effort to extend the parallel between the drug-induced phenomenon and human obsessive-compulsive disorder OCD , the present study investigated whether the checking behavior of quinpirole rats is subject to interruption, which is an attribute characteristic of OCD compulsions.

Introduction of the home-cage reduced checking behavior, as rats stayed inside the cage. After 40 min, checking resurfaced, as quinpirole rats exited the home-cage often. An unfamiliar cage had no such effects on quinpirole rats or saline controls. Checking behavior induced by quinpirole is not irrepressible but can be suspended.

Results strengthen the quinpirole preparation as an animal model of OCD compulsive che Voles scale locomotion to the size of the open-field by adjusting the distance between stops: a possible link to path integration more. In each open field, a In each open field, a vole established a home base from which it set on to round-trips of exploration; taking fewer but longer trips in.

Rats treated chronically with the dopamine agonist quinpirole 0. Specifically, in a large open-field with single small objects in 4 of 25 locales, They performed a ritual-like set. Behavioral responses of wild rodents to the calls of an owl: a comparative study more. Effective anti-predator,defence,mechanisms,depend,on,efficient recognition,of possible,predators.

However, nocturnal aerial predators, such as owls, present very few stimuli to enable their detection by potential,prey. The most,prominent,of these are their territorial calls which,are,believed,to provide sufficient stimuli to activate anti-predator defence,mechanisms,in species heavily predated,upon,by owls.

To test this hypothesis, the behaviour of voles Microtus socialis , dormice Eliomys melanurus , jerboas Jaculus jaculus , and spiny mice. Comparative Study. Dopaminergic control of locomotion, mouthing, snout contact, and grooming: opposing roles of D1 and D2 receptors more.

Publication Date: Publication Name: Psychopharmacology. Dynamics of behavioral sensitization induced by the dopamine agonist quinpirole and a proposed central energy control mechanism more. Exploration models of anxiety rely almost universally on the use of laboratory species.

Furthermore, the spontaneous patterns of locomotion displayed are often interpreted as being an expression of antipredator defense. However, there is

Differential behavioural and hormonal responses of voles and spiny mice to owl calls

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In the common spiny mouse, Acomys cahirinus, no behavioural changes were detected after exposure to owl calls, despite increased cortisol levels which are.


Differential behavioural and hormonal responses of voles and spiny mice to owl calls.

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  1. Terry G.

    Previous studies have revealed that the response of prey species to predatory risk comprised either freezing when the prey remained immobile , or fleeing when it ran frantically in order to remove itself from the vicinity of the predator.

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