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פותח על ידי קלירמאש פתרונות בע"מ -
Sexual cannibalism in the brown widow spider (Latrodectus geometricus)
Year:
2008
Source of publication :
Ethology
Authors :
הררי, אלי
;
.
Volume :
114
Co-Authors:
Segoli, M., Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel, Department of Life Sciences, Ben-Gurion University, Beer-Sheva 84105, Israel
Arieli, R., Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Sierwald, P., Zoology - Insects, Field Museum of Natural History, Chicago, IL, United States
Harari, A.R., Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel, Department of Entomology, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Lubin, Y., Mitrani Department of Desert Ecology, Jacob Blaustein Institute for Desert Research, Ben-Gurion University of the Negev, Israel
Facilitators :
From page:
279
To page:
286
(
Total pages:
8
)
Abstract:
Sexual cannibalism may represent an extreme form of male monogamy. According to this view, males gain reproductive success by sacrificing themselves to females. We studied the occurrence and timing of sexual cannibalism in the brown widow spider Latrodectus geometricus and compared male courtship and mating behavior with virgin and with previously mated females. We found that events of sexual cannibalism are frequent, that they occur during copulation and that males initiate cannibalism by placing the abdomen in front of the female's mouth-parts during copulation (somersault behavior). Both the somersaults and mating occurred more frequently with virgins than with previously mated females. Our results support the hypothesis that sexual cannibalism is a male strategy in this species. The somersault behavior was previously known only from the redback spider, Latrodectus hasselti. It is as yet unknown whether self-sacrifice has evolved more than once in this genus. © 2008 The Authors.
Note:
Related Files :
Cannibalism
copulation
Latrodectus geometricus
Latrodectus hasselti
Mating behavior
monogamy
reproductive success
sexual behavior
עוד תגיות
תוכן קשור
More details
DOI :
10.1111/j.1439-0310.2007.01462.x
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
23707
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:02
Scientific Publication
Sexual cannibalism in the brown widow spider (Latrodectus geometricus)
114
Segoli, M., Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel, Department of Life Sciences, Ben-Gurion University, Beer-Sheva 84105, Israel
Arieli, R., Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Sierwald, P., Zoology - Insects, Field Museum of Natural History, Chicago, IL, United States
Harari, A.R., Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel, Department of Entomology, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Lubin, Y., Mitrani Department of Desert Ecology, Jacob Blaustein Institute for Desert Research, Ben-Gurion University of the Negev, Israel
Sexual cannibalism in the brown widow spider (Latrodectus geometricus)
Sexual cannibalism may represent an extreme form of male monogamy. According to this view, males gain reproductive success by sacrificing themselves to females. We studied the occurrence and timing of sexual cannibalism in the brown widow spider Latrodectus geometricus and compared male courtship and mating behavior with virgin and with previously mated females. We found that events of sexual cannibalism are frequent, that they occur during copulation and that males initiate cannibalism by placing the abdomen in front of the female's mouth-parts during copulation (somersault behavior). Both the somersaults and mating occurred more frequently with virgins than with previously mated females. Our results support the hypothesis that sexual cannibalism is a male strategy in this species. The somersault behavior was previously known only from the redback spider, Latrodectus hasselti. It is as yet unknown whether self-sacrifice has evolved more than once in this genus. © 2008 The Authors.
Scientific Publication
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