Subordinate group members act as food-finders within striped parrotfish territories

1991 ◽  
Vol 145 (2) ◽  
pp. 141-148 ◽  
Author(s):  
Kenneth E. Clifton
2017 ◽  
Vol 12 (2) ◽  
Author(s):  
Jenna Shim

AbstractUsing the concept of racial microaggressions as an analytical tool, this study reports on white monolingual pre-service teachers’ self-identified linguistic microaggressions by exploring their attitudinal and affective responses to those who speak languages other than English. The assumption is that teachers’ pedagogical practices and their relationship with students are not contained within classrooms but are rather intertwined with their lives outside the classroom and their thinking in everyday context. The themes identified by analyzing the self-identified linguistic microaggressions of the participating pre-service teachers are (1) Self-consciousness/discomfort, worry, fear, anxiety, and frustration; (2) Judgments: (un)intelligence, (dis)likability, and (un)trustworthiness; (3) (In)appropriateness and English dominance; and (4) Stereotypes. This study also reports the findings pertaining to the participants’ reflections on the factors that contribute to difficulties they face when attempting to engage in self-identifying linguistic microaggressions. The common challenges among these monolingual pre-service teachers are: (1) Identification and commitment are not enough; (2) Am I a bad person? and (3) Unconscious dispositions. The significance of this study stems from its exploration of the white pre-service teachers’ self-identification of microaggressions as opposed to those identified by the victims of microaggressions. By using the concept of microaggressions as the main analytical tool, the study reveals that the dominant members who are microaggressive toward language subordinate group members must understand, recognize, and acknowledge their microaggressions if they are to more productively support English language learners (ELLs) succeed socially and academically. The study offers implications for educators working with ELLs as well as for the field of teacher education.


2012 ◽  
Vol 35 (6) ◽  
pp. 451-466 ◽  
Author(s):  
John Dixon ◽  
Mark Levine ◽  
Steve Reicher ◽  
Kevin Durrheim

AbstractThis response clarifies, qualifies, and develops our critique of the limits of intergroup liking as a means of challenging intergroup inequality. It does not dispute that dominant groups may espouse negative attitudes towards subordinate groups. Nor does it dispute that prejudice reduction can be an effective way of tackling resulting forms of intergroup hostility. What it does dispute is the assumption that getting dominant group members and subordinate group members to like each other more is the best way of improving intergroup relations that are characterized by relatively stable, institutionally embedded, relations of inequality. In other words, the main target of our critique is the model of change that underlies prejudice reduction interventions and the mainstream concept of “prejudice” on which they are based.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Indrikis A. Krams ◽  
Severi Luoto ◽  
Tatjana Krama ◽  
Ronalds Krams ◽  
Kathryn Sieving ◽  
...  

2020 ◽  
Vol 16 (8) ◽  
pp. 20200399
Author(s):  
Masayo Soma ◽  
Henrik Brumm

The duets of birds have intrigued biologists for a long time, yet much remains unknown about the evolution of these striking collective displays. This is partly because previous studies on duet evolution have been biased to songbirds and neglected other bird groups. In songbirds, the absence of migration has been found to predict the occurrence of duetting, indirectlysupporting the idea that duet communication is linked with pair bonding. Here, we used phylogenetic comparative analyses in a sedentary clade of non-songbirds, the barbets (Capitonidae), to reveal new correlates of duet evolution. We found (i) that duets evolved several times independently in different barbet lineages and (ii) that duetting evolved in association with group living (i.e. the presence of helpers or non-breeding adults during the breeding period), but not with sexual monochromatism or habitat type. Our findings are consistent with a duet function in mate guarding and dominance against subordinate group members as well as joint territory defence. Altogether, the results highlight the importance of the social environment for the evolution of collective signalling.


2011 ◽  
Vol 8 (1) ◽  
pp. 24-27 ◽  
Author(s):  
Andrew N. Radford

Allogrooming occurs in a wide range of species and can serve both hygienic and social functions. While the latter have long been thought to be underpinned by reductions in tension for recipients, recent work has suggested that donors may also benefit in this way. Here, I show that, in cooperatively breeding green woodhoopoes Phoeniculus purpureus , involvement in allogrooming is followed by a reduction in self-grooming by both recipients and donors, but that the former exhibit a greater decrease. Moreover, I demonstrate for the first time that the dominance status of the allogrooming participant is important, with subordinate group members reducing subsequent self-grooming to a greater extent than the dominant pair. If avian self-directed behaviour reflects current distress levels in the same way as found in various primates, my results would indicate that allogrooming benefits are not confined to mammals, and would have important implications both for accurate assessments of the true costs and benefits of affiliative behaviour and for our understanding of the evolution of sociality.


2005 ◽  
Vol 83 (2) ◽  
pp. 372-376 ◽  
Author(s):  
Jeremy S Mitchell ◽  
Lawrence M Dill

When social groups monopolize discrete habitat patches, group size may be positively correlated with patch size. The correlation can be a direct consequence of limited resources. Alternatively, it can be an indirect consequence of patch-size effects on a dominant group member. We asked which of these two mechanisms was responsible for a positive correlation between the group size of false clown anemonefish (Amphiprion ocellaris Cuvier in Cuvier and Valenciennes, 1830) and that of the host sea anemone Stichodactyla gigantea (Forskål, 1775). We argue that some false clown anemonefish groups may have reached the carrying capacities of their hosts, but that the group size : patch size correlation in the population as a whole is best interpreted as an indirect consequence of a positive relationship between anemone size and the length of the dominant group member. The dominant's length in turn limits group size because dominant group members inhibit the growth of their subordinates. Thus, a correlation between group size and patch size need not imply resource limitation of subordinate group members.


Ethology ◽  
2009 ◽  
Vol 115 (12) ◽  
pp. 1162-1174 ◽  
Author(s):  
Jeremy S. Mitchell ◽  
Eva Jutzeler ◽  
Dik Heg ◽  
Michael Taborsky

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