| Records |
| Author |
Potts, R. |
| Title |
Variability selection in hominid evolution |
Type |
Journal Article |
| Year |
1998 |
Publication |
Evolutionary Anthropology: Issues, News, and Reviews |
Abbreviated Journal |
Evol. Anthropol. |
| Volume |
7 |
Issue |
3 |
Pages |
81-96 |
| Keywords |
variability selection; hominids; environment; adaptation; natural selection; evolution |
| Abstract |
Variability selection (abbreviated as VS) is a process considered to link adaptive change to large degrees of environment variability. Its application to hominid evolution is based, in part, on the pronounced rise in environmental remodeling that took place over the past several million years. The VS hypothesis differs from prior views of hominid evolution, which stress the consistent selective effects associated with specific habitats or directional trends (e.g., woodland, savanna expansion, cooling). According to the VS hypothesis, wide fluctuations over time created a growing disparity in adaptive conditions. Inconsistency in selection eventually caused habitat-specific adaptations to be replaced by structures and behaviors responsive to complex environmental change. Key hominid adaptations, in fact, emerged during times of heightened variability. Early bipedality, encephalized brains, and complex human sociality appear to signify a sequence of VS adaptations—i.e., a ratcheting up of versatility and responsiveness to novel environments experienced over the past 6 million years. The adaptive results of VS cannot be extrapolated from selection within a single environmental shift or relatively stable habitat. If some complex traits indeed require disparities in adaptive setting (and relative fitness) in order to evolve, the VS idea counters the prevailing view that adaptive change necessitates long-term, directional consistency in selection. © 1998 Wiley-Liss, Inc. |
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John Wiley & Sons, Inc. |
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1520-6505 |
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Equine Behaviour @ team @ |
Serial |
5461 |
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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 - |
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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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Equine Behaviour @ team @ |
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6040 |
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| Author |
Baragli, P.; Paoletti, E.; Vitale, V.; Sighieri, C. |
| Title |
Looking in the correct location for a hidden object: brief note about the memory of donkeys (Equus asinus) |
Type |
Journal Article |
| Year |
2011 |
Publication |
Ethology Ecology & Evolution |
Abbreviated Journal |
Ethology Ecology & Evolution |
| Volume |
23 |
Issue |
2 |
Pages |
187-192 |
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| Abstract |
In recent years, considerable literature has been published on cognition in horses; however, much less is known about the cognitive abilities of domestic donkey (Equus asinus). This study aimed to expand our knowledge of donkey cognition by assessing their short-term memory capacity. We employed a detour problem combined with the classic delayed-response task, which has been extensively used to compare working memory duration in a variety of different species. A two-point choice apparatus was used to investigate location recall and search behaviour for a food target, after a short delay following its disappearance. Four donkeys completed the task with a 10 sec delay, while four others were tested with a 30 sec delay. Overall, each group performed above chance level on the test, showing that subjects had successfully encoded, maintained, and retrieved the existence and location of the target despite the loss of visual contact. |
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Taylor & Francis |
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0394-9370 |
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doi: 10.1080/03949370.2011.554885 |
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no |
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Equine Behaviour @ team @ |
Serial |
6177 |
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| Author |
Pérez-Barbería, F.J.; Shultz, S.; Dunbar, R.I. |
| Title |
Evidence for coevolution of sociality and relative brain size in three orders of mammals |
Type |
Journal Article |
| Year |
2007 |
Publication |
Evolution |
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61 |
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no |
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Equine Behaviour @ team @ Pérez-Barbería2007 |
Serial |
6221 |
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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 |
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Springer-Verlag |
Place of Publication |
New York |
Editor |
Jerison, H.J.; Jerison, I. |
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Equine Behaviour @ team @ Kruska1988 |
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6232 |
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| Author |
Van Horik, J.; Clayton, N.; Emery, N. |
| Title |
Convergent evolution of cognition in Corvids, Apes and other animals |
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Book Chapter |
| Year |
2012 |
Publication |
Oxford Handbook of Comparative Evolutionary Psychology |
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Oxford University Press |
Place of Publication |
New York |
Editor |
Vonk, J.; Shackelford, T. |
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no |
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Equine Behaviour @ team @ Van Horik2012 |
Serial |
6284 |
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| Author |
Amodio, P.; Boeckle, M.; Schnell, A.K.; Ostojic, L.; Fiorito, G.; Clayton, N.S. |
| Title |
Grow Smart and Die Young: Why Did Cephalopods Evolve Intelligence? |
Type |
Journal Article |
| Year |
2018 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
Trends. Ecol. Evol. |
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Intelligence in large-brained vertebrates might have evolved through independent, yet similar processes based on comparable socioecological pressures and slow life histories. This convergent evolutionary route, however, cannot explain why cephalopods developed large brains and flexible behavioural repertoires: cephalopods have fast life histories and live in simple social environments. Here, we suggest that the loss of the external shell in cephalopods (i) caused a dramatic increase in predatory pressure, which in turn prevented the emergence of slow life histories, and (ii) allowed the exploitation of novel challenging niches, thus favouring the emergence of intelligence. By highlighting convergent and divergent aspects between cephalopods and large-brained vertebrates we illustrate how the evolution of intelligence might not be constrained to a single evolutionary route. |
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Elsevier |
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0169-5347 |
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doi: 10.1016/j.tree.2018.10.010 |
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no |
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Equine Behaviour @ team @ |
Serial |
6508 |
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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 |
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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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2045-7758 |
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doi: 10.1002/ece3.4878 |
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no |
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Equine Behaviour @ team @ |
Serial |
6518 |
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| Author |
Byrne R.W. |
| Title |
The evolution of intelligence |
Type |
Book Chapter |
| Year |
1994 |
Publication |
Behaviour and Evolution |
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Issue |
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Pages |
223-265 |
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Cambridge University Press |
Place of Publication |
Cambridge,UK |
Editor |
P.J.B. Slater and T.R. Halliday |
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no |
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Equine Behaviour @ team @ |
Serial |
6566 |
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| Author |
Taberlet, P.; Waits, L.P.; Luikart, G. |
| Title |
Noninvasive genetic sampling: look before you leap |
Type |
Journal Article |
| Year |
1999 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
Trends Ecol. Evol |
| Volume |
14 |
Issue |
8 |
Pages |
323-327 |
| Keywords |
Hairs; Feces; Feathers; Allelic dropout; Individual identification; Conservation genetics; Behavioural ecology; Pilot study; Microsatellites; Probability of identity |
| Abstract |
Noninvasive sampling allows genetic studies of free-ranging animals without the need to capture or even observe them, and thus allows questions to be addressed that cannot be answered using conventional methods. Initially, this sampling strategy promised to exploit fully the existing DNA-based technology for studies in ethology, conservation biology and population genetics. However, recent work now indicates the need for a more cautious approach, which includes quantifying the genotyping error rate. Despite this, many of the difficulties of noninvasive sampling will probably be overcome with improved methodology. |
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0169-5347 |
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no |
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Equine Behaviour @ team @ |
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6573 |
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