The Role of Habitat in Structuring Halipegus occidualis Metapopulations in the Green Frog

1999 ◽  
Vol 85 (1) ◽  
pp. 19 ◽  
Author(s):  
Derek A. Zelmer ◽  
Eric J. Wetzel ◽  
Gerald W. Esch
Keyword(s):  
Green Frog

Possible rôle of estradiol-17β during postreproductive period in the green frog,Rana esculentacomplex

1985 ◽  
Vol 52 (3-4) ◽  
pp. 339-342
Author(s):  
Alberta Polzonetti-Magni ◽  
Loreta Bellini-Cardellini ◽  
Anna Gobbetti ◽  
Massimo Zerani
Keyword(s):  
Green Frog ◽  
Estradiol 17Β

Responses To Conspecific Advertisement Calls in the Green Frog (Rana Clamitans) and Their Role in Male-Male Communication

Behaviour ◽  
1996 ◽  
Vol 133 (3-4) ◽  
pp. 283-301 ◽  
Author(s):  
Stephen A. Perrill ◽  
Mark A. Bee
Keyword(s):  
Sound Pressure ◽  
Vocal Communication ◽  
Dominant Frequency ◽  
Advertisement Call ◽  
Rana Clamitans ◽  
Green Frog ◽  
Playback Experiments ◽  
The Third ◽  
Altered Response

AbstractWe investigated vocal communication between males in a central Indiana population of the green frog, Rana clamitans. Three playback experiments were conducted. In the first test, we broadcasted a single-note and a multiple-note conspecific advertisement call and a control call (Acris crepitans) to calling males. In response to the conspecific stimuli, males increased the number of calls made per minute, increased note duration, lowered the dominant frequency in the call, and often approached the speaker platform. In a second playback test, designed to examine changes in the sound pressure levels of response calls, we broadcasted a conspecific single-note advertisement call and the control call to calling males. Males in this test lowered the intensity of their responses to the conspecific stimulus. We take these altered response calls to be encounter calls used in the vocal defense of a territory during agonistic male-male interactions. We examine the function of these calls and discuss their possible role in communication between males. In the third test, we broadcasted a second type of conspecific multiple-note call and the control call. In their responses, males increased the number of the second multiple-note calls. The multiple-note stimulus used in this test failed to elicit the agonistic responses of the first two conspecific calls. The role of this second type of multiple-note call in male-male communication remains unclear.

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  
Wilms Tumor

Role of the allergist in diagnosis and management of patients with uveitis

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre
Keyword(s):  
Diagnosis And Management

The power of norms to sway fused group members

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam
Keyword(s):  
Evolutionary Anthropology ◽  
Normative Systems ◽  
Violent Extremism ◽  
Identity Fusion ◽  
Group Members

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.

Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux
Keyword(s):  
Decision Making ◽  
Individual Differences ◽  
Cognitive Processes ◽  
Evolutionary History ◽  
Behavioral Responses ◽  
History Of ◽  
Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

The role of affect in feelings of obligation

2020 ◽  
Vol 43 ◽  
Author(s):  
Stefen Beeler-Duden ◽  
Meltem Yucel ◽  
Amrisha Vaish
Keyword(s):  
Positive Emotions ◽  
The Creation ◽  
Sense Of Obligation

Abstract Tomasello offers a compelling account of the emergence of humans’ sense of obligation. We suggest that more needs to be said about the role of affect in the creation of obligations. We also argue that positive emotions such as gratitude evolved to encourage individuals to fulfill cooperative obligations without the negative quality that Tomasello proposes is inherent in obligations.

Refining our understanding of the “elephant in the room”

2020 ◽  
Vol 43 ◽  
Author(s):  
Andrew Whiten
Keyword(s):  
Social Cognition ◽  
Cultural Evolution ◽  
Cognitive Abilities ◽  
Critical Factors ◽  
Technological Culture

Abstract The authors do the field of cultural evolution a service by exploring the role of non-social cognition in human cumulative technological culture, truly neglected in comparison with socio-cognitive abilities frequently assumed to be the primary drivers. Some specifics of their delineation of the critical factors are problematic, however. I highlight recent chimpanzee–human comparative findings that should help refine such analyses.

Choosing a Markov blanket

2020 ◽  
Vol 43 ◽  
Author(s):  
Thomas Parr
Keyword(s):  
Markov Blanket ◽  
Target Article ◽  
The Relationship

Abstract This commentary focuses upon the relationship between two themes in the target article: the ways in which a Markov blanket may be defined and the role of precision and salience in mediating the interactions between what is internal and external to a system. These each rest upon the different perspectives we might take while “choosing” a Markov blanket.

Alpha-Effect, Current and Kinetic Helicities for Magnetically Driven Turbulence, and Solar Dynamo

2000 ◽  
Vol 179 ◽  
pp. 387-388
Author(s):  
Gaetano Belvedere ◽  
V. V. Pipin ◽  
G. Rüdiger
Keyword(s):  
Southern Hemisphere ◽  
Northern Hemisphere ◽  
Convection Zone ◽  
Solar Surface ◽  
Momentum Transport ◽  
Angular Momentum Transport ◽  
Magnetic Buoyancy ◽  
Alpha Effect ◽  
Current Helicity

Extended AbstractRecent numerical simulations lead to the result that turbulence is much more magnetically driven than believed. In particular the role ofmagnetic buoyancyappears quite important for the generation ofα-effect and angular momentum transport (Brandenburg & Schmitt 1998). We present results obtained for a turbulence field driven by a (given) Lorentz force in a non-stratified but rotating convection zone. The main result confirms the numerical findings of Brandenburg & Schmitt that in the northern hemisphere theα-effect and the kinetic helicityℋkin= 〈u′ · rotu′〉 are positive (and negative in the northern hemisphere), this being just opposite to what occurs for the current helicityℋcurr= 〈j′ ·B′〉, which is negative in the northern hemisphere (and positive in the southern hemisphere). There has been an increasing number of papers presenting observations of current helicity at the solar surface, all showing that it isnegativein the northern hemisphere and positive in the southern hemisphere (see Rüdigeret al. 2000, also for a review).

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