| Records |
Author  |
List, C. |
| Title |
Democracy in animal groups: a political science perspective |
Type |
Journal Article |
| Year |
2004 |
Publication |
Trends in Ecology & Evolution (Personal Edition) |
Abbreviated Journal |
Trends Ecol Evol |
| Volume |
19 |
Issue |
4 |
Pages |
168-169 |
| Keywords |
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| Abstract |
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| Address |
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Place of Publication |
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| Language |
English |
Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0169-5347 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:16701250 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5137 |
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| Author |
Lefebvre, L.; Reader, S.M.; Sol, D. |
| Title |
Brains, Innovations and Evolution in Birds and Primates |
Type |
Journal Article |
| Year |
2004 |
Publication |
Brain, Behavior and Evolution |
Abbreviated Journal |
Brain. Behav. Evol. |
| Volume |
63 |
Issue |
4 |
Pages |
233-246 |
| Keywords |
Innovation W Brain evolution W Hyperstriatum ventrale W Neostriatum W Isocortex W Birds W Primates W Tool use W Invasion biology |
| Abstract |
Abstract
Several comparative research programs have focusedon the cognitive, life history and ecological traits thataccount for variation in brain size. We review one ofthese programs, a program that uses the reported frequencyof behavioral innovation as an operational measureof cognition. In both birds and primates, innovationrate is positively correlated with the relative size of associationareas in the brain, the hyperstriatum ventrale andneostriatum in birds and the isocortex and striatum inprimates. Innovation rate is also positively correlatedwith the taxonomic distribution of tool use, as well asinterspecific differences in learning. Some features ofcognition have thus evolved in a remarkably similar wayin primates and at least six phyletically-independent avianlineages. In birds, innovation rate is associated withthe ability of species to deal with seasonal changes in theenvironment and to establish themselves in new regions,and it also appears to be related to the rate atwhich lineages diversify. Innovation rate provides a usefultool to quantify inter-taxon differences in cognitionand to test classic hypotheses regarding the evolution ofthe brain. |
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| ISSN |
0006-8977 |
ISBN |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4738 |
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| Author |
Kruska, D. |
| Title |
Mammalian domestication and its effect on brain structure and behavior |
Type |
Book Chapter |
| Year |
1988 |
Publication |
Intelligence and Evolutionary Biology |
Abbreviated Journal |
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Pages |
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| Publisher |
Springer-Verlag |
Place of Publication |
New York |
Editor |
Jerison, H.J.; Jerison, I. |
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no |
| Call Number |
Equine Behaviour @ team @ Kruska1988 |
Serial |
6232 |
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| Author |
Krueger, K. |
| Title |
Social Ecology of Horses |
Type |
Book Chapter |
| Year |
2008 |
Publication |
Ecology of Social Evolution |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
195-206 |
| Keywords |
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| Abstract |
Horses (Equidae ) are believed to clearly demonstrate the links between ecology and social organization. Their social cognitive abilities enable them to succeed in many different environments, including those provided for them by humans, or the ones domestic horses encounter when escaping from their human care takers. Living in groups takes different shapes in equids. Their aggregation and group cohesion can be explained by Hamilton“s selfish herd theory. However, when an individual joins and to which group it joins appears to be an active individual decision depending on predation pressure, intra group harassment and resource availability. The latest research concerning the social knowledge horses display in eavesdropping experiments affirms the need for an extension of simple herd concepts in horses for a cognitive component. Horses obviously realize the social composition of their group and determine their own position in it. The horses exceedingly flexible social behavior demands for explanations about the cognitive mechanisms, which allow them to make individual decisions. ”Ecology conditions like those that favour the evolution of open behavioural programs sometimes also favour the evolution of the beginnings of consciousness, by favouring conscious choice. Or in other words, consciousness originates with the choice that are left open by open behavioural programs." Popper (1977) |
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| Publisher |
Springer Verlag |
Place of Publication |
Heidelberg |
Editor |
j. Korb and J. Heinze |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4387 |
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| Author |
Kerth, G. |
| Title |
Group decision-making in animal societies |
Type |
Book Chapter |
| Year |
2010 |
Publication |
Animal Behaviour: Evolution and Mechanisms |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
241-265 |
| Keywords |
Life Sciences |
| Abstract |
Individuals need to coordinate their activities to benefit from group living. Thus group decisions are essential for societies, especially if group members cooperate with each other. Models show that shared (democratic) decisions outperform unshared (despotic) decisions, even if individuals disagree about actions. This is surprising as in most other contexts, differences in individual preferences lead to sex-, age-, or kin-specific behaviour. Empirical studies testing the predictions of the theoretical models have only recently begun to emerge. This applies particularly to group decisions in fission-fusion societies, where individuals can avoid decisions that are not in their interest. After outlining the basic ideas and theoretical models on group decision-making I focus on the available empirical studies. Originally most of the relevant studies have been on social insects and fish but recently an increasing number of studies on mammals and birds have been published, including some that deal with wild long-lived animals living in complex societies. This includes societies where group members have different interests, as in most mammals, and which have been less studied compared to eusocial insects that normally have no conflict among their colony members about what to do. I investigate whether the same decision rules apply in societies with conflict and without conflict, and outline open questions that remain to be studied. The chapter concludes with a synthesis on what is known about group decision-making in animals and an outlook on what I think should be done to answer the open questions. |
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| Publisher |
Springer Berlin Heidelberg |
Place of Publication |
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Editor |
Kappeler, P. |
| Language |
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ISBN |
978-3-642-02624-9 |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5381 |
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| Author |
Karenina, K.; Giljov, A.; Ingram, J.; Rowntree, V.J.; Malashichev, Y. |
| Title |
Lateralization of mother�infant interactions in a diverse range of mammal species |
Type |
Journal Article |
| Year |
2017 |
Publication |
Nature Ecology & Evolution |
Abbreviated Journal |
Nat Ecol Evol |
| Volume |
1 |
Issue |
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Pages |
0030 Ep - |
| Keywords |
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| Abstract |
Left-cradling bias is a distinctive feature of maternal behaviour in humans and great apes, but its evolutionary origin remains unknown. In 11 species of marine and terrestrial mammal, we demonstrate consistent patterns of lateralization in mother�infant interactions, indicating right hemisphere dominance for social processing. In providing clear evidence that lateralized positioning is beneficial in mother�infant interactions, our results illustrate a significant impact of lateralization on individual fitness. |
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Nature Publishing Group SN - |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6040 |
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| Author |
Ishida, N.; Oyunsuren, T.; Mashima, S.; Mukoyama, H.; Saitou, N. |
| Title |
Mitochondrial DNA sequences of various species of the genus Equus with special reference to the phylogenetic relationship between Przewalskii's wild horse and domestic horse |
Type |
Journal Article |
| Year |
1995 |
Publication |
Journal of Molecular Evolution |
Abbreviated Journal |
J Mol Evol |
| Volume |
41 |
Issue |
2 |
Pages |
180-188 |
| Keywords |
Animals; Base Sequence; Chromosomes; Conserved Sequence/genetics; DNA, Mitochondrial/*genetics; Evolution; Genetic Variation/*genetics; Horses/*genetics; Molecular Sequence Data; *Phylogeny; RNA, Transfer, Pro/genetics; Sequence Alignment; Sequence Analysis, DNA |
| Abstract |
The noncoding region between tRNAPro and the large conserved sequence block is the most variable region in the mammalian mitochondrial DNA D-loop region. This variable region (ca. 270 bp) of four species of Equus, including Mongolian and Japanese native domestic horses as well as Przewalskii's (or Mongolian) wild horse, were sequenced. These data were compared with our recently published Thoroughbred horse mitochondrial DNA sequences. The evolutionary rate of this region among the four species of Equus was estimated to be 2-4 x 10(-8) per site per year. Phylogenetic trees of Equus species demonstrate that Przewalskii's wild horse is within the genetic variation among the domestic horse. This suggests that the chromosome number change (probably increase) of the Przewalskii's wild horse occurred rather recently. |
| Address |
Laboratory of Molecular and Cellular Biology, Japan Racing Association, Tokyo |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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Edition |
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| ISSN |
0022-2844 |
ISBN |
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| Notes |
PMID:7666447 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5042 |
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| Author |
Huber, R.; van Staaden, M.J.; Kaufman, L.S.; Liem, K.F. |
| Title |
Microhabitat Use, Trophic Patterns, and the Evolution of Brain Structure in African Cichlids |
Type |
Journal Article |
| Year |
1997 |
Publication |
Brain, Behavior and Evolution |
Abbreviated Journal |
Brain Behav Evol |
| Volume |
50 |
Issue |
3 |
Pages |
167-182 |
| Keywords |
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| Abstract |
The species assemblages of cichlids in the three largest African Great Lakes are among the richest concentrations of vertebrate species on earth. The faunas are broadly similar in terms of trophic diversity, species richness, rates of endemism, and taxonomic composition, yet they are historically independent of each other. Hence, they offer a true and unique evolutionary experiment to test hypotheses concerning the mutual dependencies of ecology and brain morphology. We examined the brains of 189 species of cichlids from the three large lakes: Victoria, Tanganyika, and Malawi. A first paper demonstrated that patterns of evolutionary change in cichlid brain morphology are similar across taxonomic boundaries as well as across the three lakes [van Staaden et al., 1995 ZACS 98: 165–178]. Here we report a close relationship between the relative sizes of various brain structures and variables related to the utilization of habitat and prey. Causality is difficult to assign in this context, nonetheless, prey size and agility, turbidity levels, depth, and substrate complexity are all highly predictive of variation in brain structure. Areas associated with primary sensory functions such as vision and taste relate significantly to differences in feeding habits. Turbidity and depth are closely associated with differences in eye size, and large eyes are associated with species that pick plankton from the water column. Piscivorous taxa and others that utilize motile prey are characterized by a well developed optic tectum and a large cerebellum compared to species that prey on molluscs or plants. Structures relating to taste are well developed in species feeding on benthos over muddy or sandy substrates. The data militated against the existence of compensatory changes in brain structure. Thus enhanced development of a particular function is generally not accompanied by a parallel reduction of structures related to other modalities. Although genetic and environmental influences during ontogeny of the brain cannot be isolated, this study provides a rich source of hypotheses concerning the way the nervous system functions under various environmental conditions and how it has responded to natural selection. |
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0006-8977 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5454 |
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| Author |
Houston, A.I.; McNamara, J.M. |
| Title |
Fighting for food: a dynamic version of the Hawk-Dove game |
Type |
Journal Article |
| Year |
1988 |
Publication |
Evolutionary Ecology |
Abbreviated Journal |
Evol. Ecol. |
| Volume |
2 |
Issue |
1 |
Pages |
51-64 |
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no |
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refbase @ user @ |
Serial |
750 |
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| Author |
Hofmeester, T.R.; Cromsigt, J.P.G.M.; Odden, J.; Andrén, H.; Kindberg, J.; Linnell, J.D.C. |
| Title |
Framing pictures: A conceptual framework to identify and correct for biases in detection probability of camera traps enabling multi-species comparison |
Type |
Journal Article |
| Year |
2019 |
Publication |
Ecology and Evolution |
Abbreviated Journal |
Ecol Evol |
| Volume |
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Issue |
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Pages |
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| Keywords |
animal characteristics; detectability; environmental variables; mammal monitoring; reuse of data; trail camera |
| Abstract |
Abstract Obtaining reliable species observations is of great importance in animal ecology and wildlife conservation. An increasing number of studies use camera traps (CTs) to study wildlife communities, and an increasing effort is made to make better use and reuse of the large amounts of data that are produced. It is in these circumstances that it becomes paramount to correct for the species- and study-specific variation in imperfect detection within CTs. We reviewed the literature and used our own experience to compile a list of factors that affect CT detection of animals. We did this within a conceptual framework of six distinct scales separating out the influences of (a) animal characteristics, (b) CT specifications, (c) CT set-up protocols, and (d) environmental variables. We identified 40 factors that can potentially influence the detection of animals by CTs at these six scales. Many of these factors were related to only a few overarching parameters. Most of the animal characteristics scale with body mass and diet type, and most environmental characteristics differ with season or latitude such that remote sensing products like NDVI could be used as a proxy index to capture this variation. Factors that influence detection at the microsite and camera scales are probably the most important in determining CT detection of animals. The type of study and specific research question will determine which factors should be corrected. Corrections can be done by directly adjusting the CT metric of interest or by using covariates in a statistical framework. Our conceptual framework can be used to design better CT studies and help when analyzing CT data. Furthermore, it provides an overview of which factors should be reported in CT studies to make them repeatable, comparable, and their data reusable. This should greatly improve the possibilities for global scale analyses of (reused) CT data. |
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John Wiley & Sons, Ltd |
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Edition |
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2045-7758 |
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| Notes |
doi: 10.1002/ece3.4878 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
6518 |
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