Data

Social monogamy in the fiddler crab Uca capricornis: The response of paired crabs when faced with intruders of differing sex

Australian Ocean Data Network
Detto, Tanya ; Zeil, Jochen, Dr ; Backwell, Patricia, Dr ; Hemmi, Jan, Dr
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/c4966360-4ef0-11dc-a541-00188b4c0af8&rft.title=Social monogamy in the fiddler crab Uca capricornis: The response of paired crabs when faced with intruders of differing sex&rft.identifier=https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/c4966360-4ef0-11dc-a541-00188b4c0af8&rft.description=A unique relationship exists between neighbouring males and females in the fiddler crab Uca capricornis. This experiment was designed to determine if males and females are unable to associate with multiple partners because their partners aggressively repel same-sex intruders. Experiments were conducted in the East Point Reserve, Darwin from November-January in 2002-2006. 15 male-female pairs were located and the burrow of the male or the female (in a random order) was blocked. We tethered a size-matched same-sex or opposite sex intruder (in a random order) half way between the burrows. Once the focal individual emerged we documented whether it pushed or grappled (fought) with the intruder within 5 minutes. After each trail, we unblocked the burrow and allowed the pair to interact normally for 10 minutes before running the next trail. In this way we observed the reactions of both pair members to same- and opposite-sex intruders. Therefore for each pair, 4 experiments were undertaken: original female vs. intruder female, original female vs. intruder male, original male vs. intruder male, original male vs. intruder female. The results indicated that males and females were equally likely to respond aggressively to intruders of the same sex. Both were less likely to fight intruders of the opposite sex.Statement: 15 male-female pairs were located and the burrow of the male or the female (in a random order) was blocked. We tethered a size-matched same-sex or opposite sex intruder (in a random order) half way between the burrows. Once the focal individual emerged we documented whether it pushed or grappled (fought) with the intruder within 5 minutes. After each trail, we unblocked the burrow and allowed the pair to interact normally for 10 minutes before running the next trail. In this way we observed the reactions of both pair members to same- and opposite-sex intruders.Statement: For each pair the distance between the two burrows was recorded, as was the time and date of each manipulation experiment, if the 'new pair' fought / courted / ignored, any waves, and any other notes on the encounter. Parameters: Date, crab number, time (UTC/GMT +9:30hrs), treatment (original:stranger), fight (y/n), court (y/n), ignore (y/n), number of waves, notes on any interaction, crab, carapace width(mm) / claw size (mm) and handedness.&rft.creator=Detto, Tanya &rft.creator=Zeil, Jochen, Dr &rft.creator=Backwell, Patricia, Dr &rft.creator=Hemmi, Jan, Dr &rft.date=2007&rft.coverage=130.83298,-12.40969 130.83297,-12.40975 130.83302,-12.40975 130.83303,-12.40970 130.83298,-12.40969&rft.coverage=westlimit=130.5; southlimit=-13; eastlimit=131; northlimit=-12&rft.coverage=westlimit=130.5; southlimit=-13; eastlimit=131; northlimit=-12&rft.coverage=uplimit=0; downlimit=0&rft.coverage=uplimit=0; downlimit=0&rft_rights=Creative Commons Attribution 2.5 Australia License http://creativecommons.org/licenses/by/2.5/au/&rft_rights=The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).&rft_rights=Users are kindly requested to contact the principal investigator for authorisation before utilising or reproducing any material&rft_rights=Thumbnail may not be reproduced without prior consent from the principal investigator&rft_subject=biota&rft_subject=28 960036&rft_subject=CRUSTACEANS&rft_subject=EARTH SCIENCE&rft_subject=BIOLOGICAL CLASSIFICATION&rft_subject=ANIMALS/INVERTEBRATES&rft_subject=ARTHROPODS&rft_subject=Neighbour Relations&rft_subject=Stranger Relations&rft_subject=Behavioural Ecology&rft_subject=Ocypodidae&rft_subject=Fiddler Crab&rft_subject=Uca capricornis&rft_subject=date&rft_subject=id_code&rft_subject=time&rft_subject=experimental_treatment&rft_subject=fight&rft_subject=court&rft_subject=ignore&rft_subject=number_of_waves&rft_subject=carapace_width&rft_subject=claw_size&rft_subject=handedness&rft.type=dataset&rft.language=English Access the data
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The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).

Users are kindly requested to contact the principal investigator for authorisation before utilising or reproducing any material

Thumbnail may not be reproduced without prior consent from the principal investigator

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Brief description

A unique relationship exists between neighbouring males and females in the fiddler crab Uca capricornis. This experiment was designed to determine if males and females are unable to associate with multiple partners because their partners aggressively repel same-sex intruders. Experiments were conducted in the East Point Reserve, Darwin from November-January in 2002-2006. 15 male-female pairs were located and the burrow of the male or the female (in a random order) was blocked. We tethered a size-matched same-sex or opposite sex intruder (in a random order) half way between the burrows. Once the focal individual emerged we documented whether it pushed or grappled (fought) with the intruder within 5 minutes. After each trail, we unblocked the burrow and allowed the pair to interact normally for 10 minutes before running the next trail. In this way we observed the reactions of both pair members to same- and opposite-sex intruders. Therefore for each pair, 4 experiments were undertaken: original female vs. intruder female, original female vs. intruder male, original male vs. intruder male, original male vs. intruder female. The results indicated that males and females were equally likely to respond aggressively to intruders of the same sex. Both were less likely to fight intruders of the opposite sex.

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Statement: 15 male-female pairs were located and the burrow of the male or the female (in a random order) was blocked. We tethered a size-matched same-sex or opposite sex intruder (in a random order) half way between the burrows. Once the focal individual emerged we documented whether it pushed or grappled (fought) with the intruder within 5 minutes. After each trail, we unblocked the burrow and allowed the pair to interact normally for 10 minutes before running the next trail. In this way we observed the reactions of both pair members to same- and opposite-sex intruders.
Statement: For each pair the distance between the two burrows was recorded, as was the time and date of each manipulation experiment, if the 'new pair' fought / courted / ignored, any waves, and any other notes on the encounter. Parameters: Date, crab number, time (UTC/GMT +9:30hrs), treatment (original:stranger), fight (y/n), court (y/n), ignore (y/n), number of waves, notes on any interaction, crab, carapace width(mm) / claw size (mm) and handedness.

Notes

Credit
Australian Research Council (ARC) Centre for Excellence for Vision Science
Credit
Australian Research Council (ARC) Discovery Grant
Credit
The Centre of Visual Sciences (CVS, The Australian National University)
Credit
The Australian National University PhD Scholarship
Purpose
To determine if males and females are unable to associate with multiple partners because their partners aggressively repel same-sex intruders.

Issued: 20 08 2007

Data time period: 2002-11 to 2006-01

This dataset is part of a larger collection

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130.83298,-12.40969 130.83297,-12.40975 130.83302,-12.40975 130.83303,-12.4097 130.83298,-12.40969

130.833,-12.40972

131,-12 131,-13 130.5,-13 130.5,-12 131,-12

130.75,-12.5

text: westlimit=130.5; southlimit=-13; eastlimit=131; northlimit=-12

text: uplimit=0; downlimit=0

Subjects
28 960036 | ANIMALS/INVERTEBRATES | ARTHROPODS | BIOLOGICAL CLASSIFICATION | Behavioural Ecology | Crustaceans | EARTH SCIENCE | Fiddler Crab | Neighbour Relations | Ocypodidae | Stranger Relations | Uca capricornis | biota | carapace_width | claw_size | court | date | experimental_treatment | fight | handedness | id_code | ignore | number_of_waves | time |

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Other Information
(Reponse_to_intruders.xls)

uri : https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/c4966360-4ef0-11dc-a541-00188b4c0af8/attachments/Reponse_to_intruders.xls

(pair_formation.xls)

uri : https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/c4966360-4ef0-11dc-a541-00188b4c0af8/attachments/pair_formation.xls

global : 7ac5fb10-4f77-11dc-87ba-00188b4c0af8

Identifiers
  • global : c4966360-4ef0-11dc-a541-00188b4c0af8
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