Assessments and decisions: a study of information gathering by hermit crabs
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
London u.a.
Chapman and Hall
1992
|
| Ausgabe: | 1. ed. |
| Schriftenreihe: | Studies in behavioural adaptation series
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | IX, 192 S. Ill., graph. Darst. |
| ISBN: | 0412391104 |
Internformat
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Datensatz im Suchindex
| _version_ | 1805083576876662784 |
|---|---|
| adam_text |
Assessments
and Decisions
A STUDY OF INFORMATION GATHERING
BY HERMIT CRABS
R W ELWOOD
and
S J NEIL
Division of Environmental and Evolutionary Biology
The Queen's University of Belfast
CHAPMAN amp; HALL
London • New York • Tokyo • Melbourne • Madras
Contents
SERIES EDITOR'S FOREWORD vii
PREFACE xi
1 ASSESSMENT AND DECISIONS 1
Defining assessment 2
Assessment and physiological state 8
Discrete and continuous assessments 10
Decision-making 15
Complex assessments 21
Why hermit crabs? 25
2 THE BEHAVIOURAL ECOLOGY OF HERMIT CRABS 26
Symbiotic associations 28
Feeding 30
Reproduction 31
Shell acquisition 32
What is an 'optimal shell'? 33
Interspecific competition 35
3 PAGURUS BERNHARDUS IN NORTHERN IRELAND 37
Reproduction 40
Preferences for particular sizes of shells 47
Preferences for particular species of shells 49
The effects of sex differences and experience of
shell preference 50
Are crabs on the shore in adequate shells? 51
4 ASSESSMENT OF UNOCCUPIED SHELLS 53
Is information gained during shell investigation? 60
Use of specific appendages during investigation 64
Dealing with obstructions in the aperture 69
Summary 70
5 ASSESSMENT AND MOTIVATIONAL CHANGE 72
A motivational model of shell assessment 74
Testing the model 79
Refinement of the model and further tests 81
Interruptions of ongoing behaviour 88
vi Contents
Memory for shells 93
Conclusions and summary 96
6 AGONISTIC BEHAVIOUR 97
Displays 97
Shell fights 103
Principal components analysis 113
Summary 115
7 ASSESSMENTS DURING SHELL FIGHTS 116
Assessments during shell fights: effects of
resource value 119
Assessments during shell fights: effects of relative resource
holding power 128
Combined effects of RHP and resource value
asymmetries 131
Summary 132
8 ASSESSMENT STRATEGIES AND THE DURATION
OF FIGHTS 133
Asymmetries in the war of attrition 134
Cases of two or more asymmetries 140
Benefits of victory in shell fights 141
Costs of fighting 142
How is the contest settled? 143
Decision rules for continuing the fight 145
Testing the theory 147
Conclusion on decision rules 150
Negotiation or aggression? 150
Summary 154
9 MOTIVATIONAL CHANGE DURING AGGRESSIVE
ENCOUNTERS 155
Resource assessment and motivational change 156
RHP assessment, the cost of fighting and
motivational change 159
Two-dimensional state space 161
Motivational change in the defender 163
Is the model congruent with the data? 165
Comparison with other models 165
Summary 171
REFERENCES 172
INDEX 191 |
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| illustrated | Illustrated |
| indexdate | 2024-07-20T07:50:46Z |
| institution | BVB |
| isbn | 0412391104 |
| language | English |
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| physical | IX, 192 S. Ill., graph. Darst. |
| publishDate | 1992 |
| publishDateSearch | 1992 |
| publishDateSort | 1992 |
| publisher | Chapman and Hall |
| record_format | marc |
| series2 | Studies in behavioural adaptation series |
| spelling | Elwood, Robert W. Verfasser aut Assessments and decisions a study of information gathering by hermit crabs R. W. Elwood and S. J. Neil 1. ed. London u.a. Chapman and Hall 1992 IX, 192 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Studies in behavioural adaptation series Décision, Prise de, chez les animaux ram Ethologie gtt Heremietkreeften gtt Keuzegedrag gtt Motivation chez les animaux ram Pagures - Moeurs et comportement ram Decision making in animals Motivation in animals Pagurus bernhardus Behavior Pagurus bernhardus Behavior Northern Ireland Bernhardskrebs (DE-588)4144708-6 gnd rswk-swf Informationsaufnahme (DE-588)4139840-3 gnd rswk-swf Entscheidungsverhalten (DE-588)4113448-5 gnd rswk-swf Bernhardskrebs (DE-588)4144708-6 s Informationsaufnahme (DE-588)4139840-3 s DE-604 Entscheidungsverhalten (DE-588)4113448-5 s Neil, Susan J. Verfasser aut HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=003413266&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Elwood, Robert W. Neil, Susan J. Assessments and decisions a study of information gathering by hermit crabs Décision, Prise de, chez les animaux ram Ethologie gtt Heremietkreeften gtt Keuzegedrag gtt Motivation chez les animaux ram Pagures - Moeurs et comportement ram Decision making in animals Motivation in animals Pagurus bernhardus Behavior Pagurus bernhardus Behavior Northern Ireland Bernhardskrebs (DE-588)4144708-6 gnd Informationsaufnahme (DE-588)4139840-3 gnd Entscheidungsverhalten (DE-588)4113448-5 gnd |
| subject_GND | (DE-588)4144708-6 (DE-588)4139840-3 (DE-588)4113448-5 |
| title | Assessments and decisions a study of information gathering by hermit crabs |
| title_auth | Assessments and decisions a study of information gathering by hermit crabs |
| title_exact_search | Assessments and decisions a study of information gathering by hermit crabs |
| title_full | Assessments and decisions a study of information gathering by hermit crabs R. W. Elwood and S. J. Neil |
| title_fullStr | Assessments and decisions a study of information gathering by hermit crabs R. W. Elwood and S. J. Neil |
| title_full_unstemmed | Assessments and decisions a study of information gathering by hermit crabs R. W. Elwood and S. J. Neil |
| title_short | Assessments and decisions |
| title_sort | assessments and decisions a study of information gathering by hermit crabs |
| title_sub | a study of information gathering by hermit crabs |
| topic | Décision, Prise de, chez les animaux ram Ethologie gtt Heremietkreeften gtt Keuzegedrag gtt Motivation chez les animaux ram Pagures - Moeurs et comportement ram Decision making in animals Motivation in animals Pagurus bernhardus Behavior Pagurus bernhardus Behavior Northern Ireland Bernhardskrebs (DE-588)4144708-6 gnd Informationsaufnahme (DE-588)4139840-3 gnd Entscheidungsverhalten (DE-588)4113448-5 gnd |
| topic_facet | Décision, Prise de, chez les animaux Ethologie Heremietkreeften Keuzegedrag Motivation chez les animaux Pagures - Moeurs et comportement Decision making in animals Motivation in animals Pagurus bernhardus Behavior Pagurus bernhardus Behavior Northern Ireland Bernhardskrebs Informationsaufnahme Entscheidungsverhalten |
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