Records |
Author |
Preiszner, B.; Vincze, E.; Seress, G.; Papp, S.; Bókony, V.; Liker, A.; Lendvai, Á.Z.; Patras, L.; Pap, P.L.; Vágási, C.I.; Németh, J. |
Title |
Necessity or capacity? Physiological state predicts problem-solving performance in house sparrows |
Type |
Journal Article |
Year |
2013 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
Behav. Ecol. |
Volume |
25 |
Issue |
1 |
Pages |
124-135 |
Keywords |
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Abstract |
Innovative behaviors such as exploiting novel food sources can grant significant fitness benefits for animals, yet little is known about the mechanisms driving such phenomena, and the role of physiology is virtually unexplored in wild species. Two hypotheses predict opposing effects of physiological state on innovation success. On one hand, poor physiological condition may promote innovations by forcing individuals with poor competitive abilities to invent alternative solutions. On the other hand, superior physiological condition may ensure greater cognitive capacity and thereby better problem-solving and learning performance. To test these hypotheses, we studied the behavior of wild-caught house sparrows (Passer domesticus) in 4 novel tasks of food acquisition, one of which was presented to the birds in repeated trials, and we investigated the relationships of individual performance with relevant physiological traits. We found that problem-solving performance across the 4 tasks was moderately consistent within individuals. Birds with lower integrated levels of corticosterone, the main avian stress hormone, solved the most difficult task faster and were more efficient learners in the repeated task than birds with higher corticosterone levels. Birds with higher concentration of total glutathione, a key antioxidant, solved 2 relatively easy tasks faster, whereas birds with fewer coccidian parasites tended to solve the difficult task more quickly. Our results, thus, indicate that aspects of physiological state influence problem-solving performance in a context-dependent manner, and these effects on problem-solving capacity, probably including cognitive abilities, are more likely to drive individual innovation success than necessity due to poor condition. |
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ISSN |
1045-2249 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6552 |
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Author |
Nakagawa, S. |
Title |
A farewell to Bonferroni: the problems of low statistical power and publication bias |
Type |
Journal Article |
Year |
2004 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
beheco |
Volume |
15 |
Issue |
6 |
Pages |
1044-1045 |
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1045-2249 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6560 |
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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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ISSN |
0169-5347 |
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no |
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Equine Behaviour @ team @ |
Serial |
6573 |
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Author |
Bruns, A.; Waltert, M.; Khorozyan, I. |
Title |
The effectiveness of livestock protection measures against wolves (Canis lupus) and implications for their co-existence with humans |
Type |
Journal Article |
Year |
2020 |
Publication |
Global Ecology and Conservation |
Abbreviated Journal |
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Volume |
21 |
Issue |
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Pages |
e00868 |
Keywords |
Carnivore; Depredation; Efficiency; Germany; Intervention; Predator |
Abstract |
Wolves (Canis lupus) can kill domestic livestock resulting in intense conflicts with humans. Damage to livestock should be reduced to facilitate human-wolf coexistence and ensure positive outcomes of conservation efforts. Current knowledge on the effectiveness of livestock protection measures from wolves is limited and scattered in the literature. In this study, we compiled a dataset of 30 cases describing the application of 11 measures of protecting cattle and smaller livestock against wolves, estimated their effectiveness as a relative risk of damage, and identified the best measures for damage reduction. We found that: (1) lethal control and translocation were less effective than other measures, (2) deterrents, especially fladry which is a fence with ropes marked by hanging colored flags that sway in the wind and provide a visual warning signal, were more effective than guarding dogs; (3) deterrents, fencing, calving control and herding were very effective, but the last two measures included only one case each; and (4) protection of cattle was more effective than that of small stock (sheep and goats, or sheep only) and mixed cattle and small stock. In all of these cases, the relative risk of damage was reduced by 50-100%. Considering Germany as an example of a country with a recovering wolf population and escalating human-wolf conflicts, we suggest electric fences and electrified fladry as the most promising measures, which under suitable conditions can be accompanied by well-trained livestock guarding dogs, and the temporary use of deterrents during critical periods such as calving and lambing seasons. Further research in this field is of paramount importance to efficiently mitigate human-wolf conflicts. |
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ISSN |
2351-9894 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6641 |
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Author |
Bergmüller, R.; Taborsky, M. |
Title |
Animal personality due to social niche specialisation |
Type |
Journal Article |
Year |
2010 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
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Volume |
25 |
Issue |
9 |
Pages |
504-511 |
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Abstract |
The existence of 'animal personality', i.e. consistent individual differences in behaviour across time and contexts, is an evolutionary puzzle that has recently generated considerable research interest. Although social factors are generally considered to be important, it is as yet unclear how they might select for personality. Drawing from ecological niche theory, we explore how social conflict and alternative social options can be key factors in the evolution and development of consistent individual differences in behaviour. We discuss how animal personality research might benefit from insights into the study of alternative tactics and illustrate how selection can favour behavioural diversification and consistency due to fitness benefits resulting from conflict reduction among social partners. |
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ISSN |
0169-5347 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6646 |
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Author |
Hunt, G.R.; Gray R.D.; Taylor, A.H. |
Title |
Why is tool use rare in animals? |
Type |
Book Whole |
Year |
2013 |
Publication |
Tool Use in Animals: Cognition and Ecology |
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Publisher |
Cambridge University Press |
Place of Publication |
Cambridge, MA. |
Editor |
anz C, Call J, Boesch C |
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no |
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Equine Behaviour @ team @ |
Serial |
6658 |
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Author |
Meriggi, A.; Dagradi, V.; Dondina, O.; Perversi, M.; Milanesi, P.; Lombardini, M.; Raviglione, S.; Repossi, A. |
Title |
Short-term responses of wolf feeding habits to changes of wild and domestic ungulate abundance in Northern Italy |
Type |
Journal Article |
Year |
2014 |
Publication |
Ethology Ecology & Evolution |
Abbreviated Journal |
Ethology Ecology & Evolution |
Volume |
27 |
Issue |
4 |
Pages |
389-411 |
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Publisher |
Taylor & Francis |
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0394-9370 |
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doi: 10.1080/03949370.2014.986768 |
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Equine Behaviour @ team @ |
Serial |
6688 |
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Author |
Burton, A.C.; Neilson, E.; Moreira, D.; Ladle, A.; Steenweg, R.; Fisher, J.T.; Bayne, E.; Boutin, S. |
Title |
REVIEW: Wildlife camera trapping: a review and recommendations for linking surveys to ecological processes |
Type |
Journal Article |
Year |
2015 |
Publication |
Journal of Applied Ecology |
Abbreviated Journal |
J Appl Ecol |
Volume |
52 |
Issue |
3 |
Pages |
675-685 |
Keywords |
animal movement; camera trap; capture-recapture; density estimation; imperfect detection; mammal monitoring; occupancy model; relative abundance; sampling error; wildlife survey methodology |
Abstract |
Summary Reliable assessment of animal populations is a long-standing challenge in wildlife ecology. Technological advances have led to widespread adoption of camera traps (CTs) to survey wildlife distribution, abundance and behaviour. As for any wildlife survey method, camera trapping must contend with sources of sampling error such as imperfect detection. Early applications focused on density estimation of naturally marked species, but there is growing interest in broad-scale CT surveys of unmarked populations and communities. Nevertheless, inferences based on detection indices are controversial, and the suitability of alternatives such as occupancy estimation is debatable. We reviewed 266 CT studies published between 2008 and 2013. We recorded study objectives and methodologies, evaluating the consistency of CT protocols and sampling designs, the extent to which CT surveys considered sampling error, and the linkages between analytical assumptions and species ecology. Nearly two-thirds of studies surveyed more than one species, and a majority used response variables that ignored imperfect detection (e.g. presence?absence, relative abundance). Many studies used opportunistic sampling and did not explicitly report details of sampling design and camera deployment that could affect conclusions. Most studies estimating density used capture?recapture methods on marked species, with spatially explicit methods becoming more prominent. Few studies estimated density for unmarked species, focusing instead on occupancy modelling or measures of relative abundance. While occupancy studies estimated detectability, most did not explicitly define key components of the modelling framework (e.g. a site) or discuss potential violations of model assumptions (e.g. site closure). Studies using relative abundance relied on assumptions of equal detectability, and most did not explicitly define expected relationships between measured responses and underlying ecological processes (e.g. animal abundance and movement). Synthesis and applications. The rapid adoption of camera traps represents an exciting transition in wildlife survey methodology. We remain optimistic about the technology's promise, but call for more explicit consideration of underlying processes of animal abundance, movement and detection by cameras, including more thorough reporting of methodological details and assumptions. Such transparency will facilitate efforts to evaluate and improve the reliability of camera trap surveys, ultimately leading to stronger inferences and helping to meet modern needs for effective ecological inquiry and biodiversity monitoring. |
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John Wiley & Sons, Ltd |
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0021-8901 |
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Notes |
https://doi.org/10.1111/1365-2664.12432 |
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no |
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Equine Behaviour @ team @ |
Serial |
6703 |
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Author |
Berger, J, |
Title |
Social systems, resources, and phylogenetic inertia: an experimental test and its limitations |
Type |
Book Chapter |
Year |
1988 |
Publication |
Ecology of Social Behavior |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
157-186 |
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Publisher |
Academic Press |
Place of Publication |
San Diego |
Editor |
Slobochikoff, C.N. |
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Original Title |
Ecology of Social Behavior |
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Equine Behaviour @ team @ |
Serial |
2234 |
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