Records |
Author |
Reinhardt, I.; Kluth, G.; Balzer, S.; Steyer, K. |
Title |
Wolfsverursachte Schäden, Präventions- und Ausgleichszahlungen in Deutschland 2021 |
Type |
Manuscript |
Year |
2022 |
Publication |
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Abbreviated Journal |
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Volume |
41 |
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DBBW-Dokumentations- und Beratungsstelle des Bundes zum Thema Wolf |
Place of Publication |
Görlitz, Deutschland |
Editor |
Markus Ritz |
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Equine Behaviour @ team @ |
Serial |
6684 |
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Author |
Machmoum, M.; Badaoui, B.; Petit, D.; Germot, A.; El Alaoui, M.A.; Boujenane, I.; Piro, M. |
Title |
Genetic Diversity and Maternal Phylogenetic Relationships among Populations and Strains of Arabian Show Horses |
Type |
Journal Article |
Year |
2023 |
Publication |
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Pages |
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Keywords |
genetic variability; whole D-loop mitochondrial DNA; desert-bred; straight Egyptian; Polish Arabian; traditional Arabian horse classification |
Abstract |
Genetic diversity and phylogenetic relationships within the Arabian show horse populations are of particular interest to breeders worldwide. Using the complete mitochondrial DNA D-loop sequence (916 pb), this study aimed (i) to understand the genetic relationship between three populations, the Desert-Bred (DB), a subset of the Kingdom of Saudi Arabia (KSA), United Arab Emirates (UAE) and Bahrain (BAH), the Straight Egyptian (EG) and the Polish bloodline (PL), and (ii) to assess the accuracy of the traditional strain classification system based on maternal lines, as stated by the Bedouin culture. To that end, we collected 211 hair samples from stud farms renowned for breeding Arabian show horses from Nejd KSA, Bahrain, Egypt, Qatar, Morocco, UAE, and Poland. The phylogenetic and network analyses of the whole mitochondrial DNA D-loop sequence highlighted a great genetic diversity among the Arabian horse populations, in which about 75% of variance was assigned to populations and 25% to strains. The discriminant analysis of principal components illustrated a relative distinction between those populations. A clear subdivision between traditional strains was found in PL, in contrast to the situation of DB and EG populations. However, several Polish horse individuals could not be traced back to the Bedouin tribes by historical documentation and were shown to differ genetically from other studied Bedouin strains, hence motivating extended investigations. |
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Animals |
Series Volume |
13 |
Series Issue |
12 |
Edition |
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ISSN |
2076-2615 |
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Equine Behaviour @ team @ |
Serial |
6709 |
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Author |
Heydebreck, K. von |
Title |
Reitlehrer und Reiter in Uniform und Zivil eine Anleitung nach den Grundsätzen der deutschen Reitvorschrift |
Type |
Book Whole |
Year |
1928 |
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Publisher |
Mittler |
Place of Publication |
Berlin |
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2., neubearb. Aufl |
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no |
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Equine Behaviour @ team @ |
Serial |
6710 |
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Author |
Sighieri, C.; Tedeschi, D.; De Andreis, C.; Petri, L.; Baragli, P. |
Title |
Behaviour Patterns of Horses Can be Used to Establish a Dominant-Subordinate Relationship Between Man and Horse |
Type |
Journal Article |
Year |
2003 |
Publication |
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Abbreviated Journal |
Animal Welfare |
Volume |
12 |
Issue |
4 |
Pages |
705-708 |
Keywords |
animal welfare; behaviour patterns; dominance; unhandled horse |
Abstract |
This paper describes how man can enter the social hierarchy of the horse by mimicking the behaviour and stance it uses to establish dominance. A herd is organised according to a dominance hierarchy established by means of ritualised conflict. Dominance relationships are formed through these confrontations: one horse gains the dominant role and others identify themselves as subordinates. This study was conducted using five females of the Haflinger breed, totally unaccustomed to human contact, from a free-range breeding farm. The study methods were based on the three elements fundamental to the equilibrium of the herd: flight, herd instinct and hierarchy. The trainer-horse relationship was established in three phases: retreat, approach and association. At the end of the training sessions, all of the horses were able to respond correctly to the trainer. These observations suggest that it is possible to manage unhandled horses without coercion by mimicking their behaviour patterns. |
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Cambridge University Press |
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Edition |
2023/01/11 |
ISSN |
0962-7286 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6713 |
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Author |
Bateson, P. |
Title |
Play, playfulness, creativity and innovation. |
Type |
Journal Article |
Year |
2014 |
Publication |
Animal Behavior and Cognition |
Abbreviated Journal |
Anim. Behav. Cogn. |
Volume |
1 |
Issue |
2 |
Pages |
99-112 |
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Equine Behaviour @ team @ |
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6553 |
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Author |
Lonsdorf, E.V. |
Title |
Sex differences in the development of termite-fishing skills in the wild chimpanzees, Pan troglodytes schweinfurthii, of Gombe National Park, Tanzania |
Type |
Journal Article |
Year |
2005 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
Volume |
70 |
Issue |
3 |
Pages |
673-683 |
Keywords |
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Abstract |
By the age of 5.5 years, all of the young chimpanzees of Gombe National Park have acquired a skill known as 'termite fishing'. Termite fishing involves inserting a flexible tool made from vegetation into a termite mound and extracting the termites that attack and cling to the tool. Although tool use is a well-known phenomenon in chimpanzees, little is known about how such skills develop in the wild. Prior studies have found adult sex differences in frequency, duration and efficiency of tool-using tasks, with females scoring higher on all measures. To investigate whether these sex differences occurred in youngsters, I performed a 4-year longitudinal field study during which I observed and videotaped young chimpanzees' development of the termite-fishing behaviour. Critical elements of the skill included identifying a hole, making a tool, inserting a tool into a hole and extracting termites. These elements appeared in the same order during the development of all subjects, but females typically peaked at least a year earlier than males in their performance of the skills that precede termite fishing. In addition, young females successfully termite-fished an average of 27 months earlier than young males and were more proficient at the skill after acquisition had occurred. Furthermore, the techniques of female offspring closely resembled those of their mothers whereas the techniques of male offspring did not, suggesting that the process by which termite fishing is learned differs for male and female chimpanzees. |
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ISSN |
0003-3472 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6536 |
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Author |
Amici, F.; Widdig, A.; Lehmann, J.; Majolo, B. |
Title |
A meta-analysis of interindividual differences in innovation |
Type |
Journal Article |
Year |
2019 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
Volume |
155 |
Issue |
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Pages |
257-268 |
Keywords |
age; bad competitor hypothesis; excess of energy hypothesis; innovation; interindividual differences; intraspecific variation; personality; rank; sex |
Abstract |
The ability to innovate and the social transmission of innovations have played a central role in human evolution. However, innovation is also crucial for other animals, by allowing them to cope with novel socioecological challenges. Although innovation plays such a central role in animals' lives, we still do not know the conditions required for innovative behaviour to emerge. Here, we focused on interindividual differences in innovation by (1) extensively reviewing existing literature on innovative behaviour in animals and (2) quantitatively testing the different evolutionary hypotheses that have been proposed to explain interindividual variation in innovation propensity during foraging tasks. We ran a series of phylogenetically controlled mixed-effects meta-regression models to determine which hypotheses (if any) are supported by currently available empirical studies. Our analyses show that innovation is more common in individuals that are older and belong to the larger sex, but also in more neophilic and/or explorative individuals. Moreover, these effects change depending on the study setting (i.e. wild versus captive). Our results provide no clear support to the excess of energy or the bad competitor hypotheses and suggest that study setting and interindividual differences in traits related to personality are also important predictors of innovation. |
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0003-3472 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6589 |
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Author |
Miyata, H.; Gajdon, G.K.; Huber, L.; Fujita, K. |
Title |
How do keas (Nestor notabilis) solve artificial-fruit problems with multiple locks? |
Type |
Journal Article |
Year |
2011 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
14 |
Issue |
1 |
Pages |
45-58 |
Keywords |
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Abstract |
Keas, a species of parrots from New Zealand, are an interesting species for comparative studies of problem solving and cognition because they are known not only for efficient capacities for object manipulation but also for explorative and playful behaviors. To what extent are they efficient or explorative, and what cognitive abilities do they use? We examined how keas would solve several versions of artificial-fruit box problems having multiple locks. After training keas to remove a metal rod from over a Plexiglas lid that had to be opened, we exposed the birds to a variety of tasks having two or more locks. We also introduced a preview phase during which the keas had extended opportunity to look at the tasks before the experimenter allowed the birds to solve them, to examine whether the preview phase would facilitate the birds' performance on the tasks. In a large number of tests, the keas showed a strong trend to solve the tasks with no positive effect of previewing the tasks. When the tasks became complex, however, the keas corrected inappropriate responses more quickly when they had had chance to preview the problems than when they had not. The results suggest that the keas primarily used explorative strategies in solving the lock problems but might have obtained some information about the tasks before starting to solve them. This may reflect a good compromise of keas' trial-and-error tendency and their good cognitive ability that result from a selection pressure they have faced in their natural habitat. |
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ISSN |
1435-9456 |
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no |
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Equine Behaviour @ team @ Miyata2011 |
Serial |
6549 |
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Author |
Schwartz, L.P.; Silberberg, A.; Casey, A.H.; Kearns, D.N.; Slotnick, B. |
Title |
Does a rat release a soaked conspecific due to empathy? |
Type |
Journal Article |
Year |
2017 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
20 |
Issue |
2 |
Pages |
299-308 |
Keywords |
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Abstract |
In Experiment 1, rats choosing in an E maze preferred to release a rat standing in a pool of water to dry ground over a rat already standing on dry ground. Five additional experiments showed that the choosing rat's preference for releasing the wet rat was maintained by two separable outcomes: (1) the social contact offered by the released rat and (2) the reinforcing value of proximity to a pool of water. These results call into question Sato et al.'s (Anim Cogn 18:1039-1047, 2015) claim to have demonstrated that a rat's releasing of a wet rat to dry ground is empathically motivated. |
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1435-9456 |
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Equine Behaviour @ team @ Schwartz2017 |
Serial |
6559 |
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Author |
Giljov, A.; Malashichev, Y.; Karenina, K. |
Title |
What do wild saiga antelopes tell us about the relative roles of the two brain hemispheres in social interactions? |
Type |
Journal Article |
Year |
2019 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
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Issue |
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Pages |
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Abstract |
Two brain hemispheres are unequally involved in the processing of social stimuli, as demonstrated in a wide range of vertebrates. A considerable number of studies have shown the right hemisphere advantage for social processing. At the same time, an approach-withdrawal hypothesis, mainly based on experimental evidence, proposes the involvement of both brain hemispheres according to approach and withdrawal motivation. The present study aimed to test the relative roles of the two hemispheres in social responses displayed in a natural context. Visual biases, implicating hemispheric lateralization, were estimated in the social interactions of saiga antelope in the wild. In individually identified males, the left/right visual field use during approach and withdrawal responses was recorded based on the lateral head/body position, relative to the conspecific. Lateralized approach responses were investigated in three types of interactions, with left visual field bias found for chasing a rival, no bias--for attacking a rival, and right visual field bias--for pursuing a female. In two types of withdrawal responses, left visual field bias was found for retreating after fighting, while no bias was evident in fight rejecting. These findings demonstrate that neither the right hemisphere advantage nor the approach-withdrawal distinction can fully explain the patterns of lateralization observed in social behaviour. It is clear that both brain hemispheres play significant roles in social responses, while their relative contribution is likely determined by a complex set of motivational and emotional factors rather than a simple dichotomous distinction such as, for example, approach versus withdrawal motivation. |
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1435-9456 |
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Equine Behaviour @ team @ Giljov2019 |
Serial |
6569 |
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