INDIVIDUAL AND STATUS RECOGNITION IN THE CRAYFISH, ORCONECTES RUSTICUS: THE EFFECTS OF URINE RELEASE ON FIGHT DYNAMICS

AbstractThis study examined individual and status recognition in dyadic interactions between crayfish and determines how blocking the release of urine, a known source of chemical cues, may influence recognition. Behavioral characteristics of agonistic interactions were compared between crayfish pairs that fought each other previously (familiar) and pairs derived from individuals with past status history but no previous experience with one another (unfamiliar). To address the role of urine born chemical cues in recognition, fight dynamics were examined in urine blocked and non-blocked familiar and unfamiliar pairs. Our results indicate the existence of status recognition in crayfish as first fights were longer than second fights and the statistical interaction between fight number and familiar/unfamiliar treatment was similar. Urine cues play a role in social recognition in that fights are longer and more intense when urine cues are absent than when urine cues are present. Communication of behavioral state through urine appears to play an important role in the agonistic interactions of crayfish.

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Chemical cues and group association preferences in a subsocial cockroach, Panesthia australis

Australian Journal of Zoology ◽

10.1071/zo09066 ◽

2009 ◽

Vol 57 (6) ◽

pp. 385 ◽

Cited By ~ 3

Author(s):

Zacariah D. Billingham ◽

David G. Chapple ◽

Paul Sunnucks ◽

Bob B. M. Wong

Keyword(s):

Chemical Cues ◽

Social Systems ◽

Group Living ◽

Social Recognition ◽

Restricted Gene Flow ◽

Diverse Range ◽

Living Species ◽

Group Members ◽

Wood Boring

An ability to recognise and discriminate between group and non-group members is essential for most group-living species. Several different sensory modalities may be utilised for social recognition, the most notable of which is olfaction. Among insects, members of the order Blattodea (cockroaches, termites) exhibit a diverse range of social systems and provide an excellent model for examining the role of chemical communication in group discrimination. We experimentally tested the importance of chemical cues in the association preferences of the subsocial Australian wood-boring cockroach, Panesthia australis. Using a series of dichotomous choice trials, we found that individuals preferred conspecific odour cues over those of an unscented peatmoss control. We then gave cockroaches a choice between the odour cues of cockroaches from different logs, and found that they did not exhibit a preference for the cues of individuals from their own log versus those from different logs within the same locality. However, cockroaches exhibited a strong preference for cues taken from individuals from a geographically distant population. Our findings suggest that P. australis engages in group discrimination, and that patterns of association may reflect an underlying preference for unfamiliar and/or genetically dissimilar individuals in a species encumbered by restricted gene flow.

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Can outcomes of dyadic interactions be consistent across contexts among wild zebrafish?

Royal Society Open Science ◽

10.1098/rsos.150282 ◽

2015 ◽

Vol 2 (11) ◽

pp. 150282 ◽

Cited By ~ 11

Author(s):

Tamal Roy ◽

Anuradha Bhat

Keyword(s):

Reproductive Success ◽

Resource Availability ◽

Food Resource ◽

Group Living ◽

Dyadic Interactions ◽

Agonistic Interactions ◽

Aggressive Interactions ◽

Probable Role ◽

Competition For Resources

Winner–loser relations among group-living individuals are often measured by the levels of aggressive interactions between them. These interactions are typically driven by competition for resources such as food and mates. It has been observed in recent studies on zebrafish that dominant males generally have higher total reproductive success than their less aggressive subordinate counterparts. This study aimed to test whether males who monopolized a food resource (winners) also displayed higher levels of aggression than the males who were unsuccessful (losers). Further, the study also tested whether the same ‘winner’ males were also able to monopolize interactions with females during courtship. The results from these experiments showed that while males monopolizing food resources (winners) demonstrated higher levels of agonistic interactions than the losers, the average number of courtship interactions initiated by either of the males (i.e. winners/losers) with a female was not significantly different. A significant relationship was obtained between the number of aggressive interactions and feeding latencies of males in the context of food monopolization. This indicated that there could be a linkage between boldness defined by feeding latency in a novel environment and agonistic responses. The probable role of nature of resources, resource availability and distribution in determining the outcomes of dyadic contests is discussed.

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The role of adult fiddler crab environmental acoustic cues and chemical cues in stimulating molting of field-caught megalopae

Journal of Experimental Marine Biology and Ecology ◽

10.1016/j.jembe.2021.151516 ◽

2021 ◽

Vol 537 ◽

pp. 151516

Author(s):

Emily E. Waddell ◽

Wendy E.D. Piniak ◽

Kathleen A. Reinsel ◽

James M. Welch

Keyword(s):

Chemical Cues ◽

Fiddler Crab ◽

Acoustic Cues

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The role of dyadic interactions between CEOs, chairs and owners in family firm governance

Journal of Management & Governance ◽

10.1007/s10997-020-09561-7 ◽

2021 ◽

Author(s):

Hanna Maria Sievinen ◽

Tuuli Ikäheimonen ◽

Timo Pihkala

Keyword(s):

Decision Making ◽

Cognitive Conflict ◽

Family Firm ◽

Dyadic Interaction ◽

Dyadic Interactions ◽

Board Processes ◽

Governance Process ◽

Back Stage ◽

Firm Owners

AbstractThe objective of this case-based study is to understand how the dyadic interaction between the key governance actors can influence the decision-making aimed at directing and controlling a family firm. The study provides evidence that dyadic interaction at the back stage of the formal governance process can offer a privileged position for the family firm owners who serve on the board, and the non-family member Chair of the Board, to influence decision-making before, after and between board meetings. The cases studied suggest that dyadic interactions can serve as preparation for formal board processes and complement and clarify them, yet they also have the potential to conflict with them. Dyadic interaction is also shown to offer important relational and emotional benefits that may not necessarily be achieved through larger group interaction. The findings suggest that although the actors can self-regulate their behaviour through informal rules, the rules may imperfectly address one risk of dyadic interaction—the reduced cognitive conflict among the board.

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Interactions of ants with native and invasive lady beetles and the role of chemical cues in intraguild interference

Chemoecology ◽

10.1007/s00049-021-00354-4 ◽

2021 ◽

Author(s):

Roman Bucher ◽

Laura M. Japke ◽

Ayse Gül Ünlü ◽

Florian Menzel

Keyword(s):

Chemical Cues ◽

Harmonia Axyridis ◽

Species Recognition ◽

Lady Beetle ◽

Lasius Niger ◽

Beetle Species ◽

Beetle Elytra ◽

Lady Beetles ◽

Ant Aggression

AbstractThe predator-predator naïveté hypothesis suggests that non-native predators benefit from being unknown to native predators, resulting in reduced intraguild interference with native predators. This novelty advantage should depend on the ability of native predators to recognize cues of non-native predators. Here, we compared ant aggression and lady beetle reaction in four native and the invasive lady beetle species Harmonia axyridis. In addition, we tested whether lady beetle cuticular hydrocarbons (CHCs) are involved in species recognition, which might explain naïveté if the invasive species has a specific CHC profile. To this end, we conducted behavioral assays confronting two native ant species with both living lady beetles and lady beetle elytra bearing or lacking CHCs of different lady beetle species. Finally, we characterized CHC profiles of the lady beetles using GC–MS. In general, the aggression of Lasius niger was more frequent than that of Myrmica rubra and L. niger aggression was more frequent towards most native lady beetle species compared to H. axyridis. The removal of CHCs from lady beetle elytra reduced aggression of both ant species. If CHCs of respective lady beetle species were added on cue-free elytra, natural strength of L. niger aggression could be restored. CHC analyses revealed a distinct cue composition for each lady beetle species. Our experiments demonstrate that the presence of chemical cues on the surface of lady beetles contribute to the strength of ant aggression against lady beetles. Reduced aggression of L. niger towards H. axyridis and reduced avoidance behavior in H. axyridis compared to the equally voracious C. septempunctata might improve the invasive lady beetle’s access to ant-tended aphids.

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The role of the neuropeptide galanin in forming type-specific behavioral characteristics

Neuroscience and Behavioral Physiology ◽

10.1007/s11055-008-0013-3 ◽

2008 ◽

Vol 38 (1) ◽

pp. 93-98 ◽

Cited By ~ 5

Author(s):

V. I. Lyudyno ◽

I. N. Abdurasulova ◽

V. M. Klimenko

Keyword(s):

Behavioral Characteristics

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Selecting an Abortion Clinic: The Role of Social Myths and Risk Perception in Seeking Abortion Care

Journal of Health and Social Behavior ◽

10.1177/00221465211044413 ◽

2021 ◽

pp. 002214652110444

Author(s):

Orlaith Heymann ◽

Tamika Odum ◽

Alison H. Norris ◽

Danielle Bessett

Keyword(s):

Health Care ◽

Risk Perception ◽

Health Care Facilities ◽

Previous Experience ◽

Care Seeking ◽

Abortion Care ◽

Care Facilities ◽

Abortion Clinic

Recent shifts in the abortion provision landscape have generated increased concern about how people find abortion care as regulations make abortion less accessible and clinics close. Few studies examine the reasons that people select particular facilities in such constrained contexts. Drawing from interviews with 41 Ohio residents, we find that people’s clinic selections are influenced by the risks they associate with abortion care. Participants’ strategies for selecting an abortion clinic included: drawing on previous experience with clinics, consulting others online, discerning reputation through name recognition and clinic type, and considering location, especially perceptions about place (privacy, legality, safety). We argue that social myths inform the risks people anticipate when seeking health care facilities, shaping care seeking in ways that are both abortion-specific and more general. These findings can also inform research in other health care contexts where patients increasingly find their options constrained by rising costs, consolidation, and facility closure.

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