scholarly journals Pressure for rapid and accurate mate recognition promotes avian-perceived plumage sexual dichromatism in true thrushes (genus: Turdus)

2021 ◽  
Author(s):  
Alec B Luro ◽  
Mark E Hauber
Keyword(s):  
Mate Recognition ◽  
Social Recognition ◽  
Sexual Dichromatism ◽  
Passerine Birds ◽  
Migratory Behaviour ◽  
Season Length ◽  
Migratory Species ◽  
Recognition Systems ◽  
Breeding Seasons ◽  
Receptor Noise

Ecological conditions limiting the time to find a compatible mate or increasing the difficulty in doing so likely promote the evolution of traits used for species and mate recognition. Here, we tested this recognition hypothesis for promoting plumage sexual dichromatism in the true thrushes (Turdus), a large and diverse genus of passerine birds. We used receptor-noise limited models of avian vision to quantify avian-perceived chromatic and achromatic visual contrasts between male and female plumage patches and tested the influence of breeding season length, spatial distribution, and sympatry with other Turdus species on plumage dichromatism. As predicted, we found that 1) true thrush species with migratory behaviour have greater plumage sexual dichromatism than non-migratory species, 2) species with longer breeding seasons have less plumage sexual dichromatism, and 3) the number of Turdus thrush species breeding in sympatry is associated with more plumage sexual dichromatism. These results suggest that social recognition systems, including species and mate recognition, play a prominent role in the evolution of thrush plumage sexual dichromatism.

scholarly journals Genomes to space stations: the need for the integrative study of migration for avian conservation

2018 ◽  
Vol 14 (2) ◽  
pp. 20170741 ◽  
Author(s):  
Adam M. Fudickar ◽  
Ellen D. Ketterson
Keyword(s):  
Field Studies ◽  
Migratory Behaviour ◽  
Migratory Connectivity ◽  
Migratory Species ◽  
Avian Migration ◽  
Weather Patterns ◽  
Migration Data ◽  
Integrative Study ◽  
Genetic Mechanisms ◽  
Radical Transformation

Ongoing changes to global weather patterns and human modifications of the environment have altered the breeding and non-breeding ranges of migratory species, the timing of their migrations, and even whether they continue to migrate at all. Animal movements are arguably one of the most difficult behaviours to study, particularly in smaller birds that migrate tens to thousands of kilometres seasonally, often moving hundreds of kilometres each day. The recent miniaturization of tracking and logging devices has led to a radical transformation in our understanding of avian migratory behaviour and migratory connectivity. While advances in technology have altered the way researchers study migratory behaviour in the field, advances in techniques related to the study of physiological and genetic mechanisms underlying migratory behaviour have rarely been integrated into field studies of tracking. To predict the capacity of migrants to adjust to a changing planet, it is essential that we combine avian migration data with physiological and genetic measurements taken at key time points prior to, during and after migration.

scholarly journals Mechanisms of recognition in birds and social Hymenoptera: from detection to information processing

2020 ◽  
Vol 375 (1802) ◽  
pp. 20190483 ◽  
Author(s):  
Natacha Rossi ◽  
Sébastien Derégnaucourt
Keyword(s):  
Individual Recognition ◽  
Experimental Tests ◽  
Mate Recognition ◽  
Social Hymenoptera ◽  
Song Control System ◽  
Recognition Systems ◽  
Song Control ◽  
Avian Song ◽  
Evolving Models ◽  
Nest Mate Recognition

In this opinion piece, we briefly review our knowledge of the mechanisms underlying auditory individual recognition in birds and chemical nest-mate recognition in social Hymenoptera. We argue that even though detection and perception of recognition cues are well studied in social Hymenoptera, the neural mechanisms remain a black box. We compare our knowledge of these insect systems with that of the well-studied avian ‘song control system’. We suggest that future studies on recognition should focus on the hypothesis of a distributed template instead of trying to locate the seat of the template as recent results do not seem to point in that direction. This article is part of the theme issue ‘Signal detection theory in recognition systems: from evolving models to experimental tests’.

Acoustic recognition signals: barriers to hybridization in Homoptera Auchenorrhyncha

1990 ◽  
Vol 68 (8) ◽  
pp. 1741-1746 ◽  
Author(s):  
M. F. Claridge
Keyword(s):  
Geographical Variation ◽  
Brown Planthopper ◽  
Mate Recognition ◽  
Acoustic Signals ◽  
Nilaparvata Lugens ◽  
Biological Species ◽  
Species Discrimination ◽  
Isolating Mechanisms ◽  
Recognition Systems ◽  
Morphological Species

The biological, or isolation, concept of species is compared with the recognition concept of Paterson. Specific-mate recognition signals are in practice equated with premating isolating mechanisms. Acoustic signals are dominant in specific-mate recognition systems of Homoptera Auchenorrhyncha. Recording and analysis of the signals give some of the best data for species discrimination in these insects. The morphological species Nilaparvata lugens, the brown planthopper, includes two morphologically indistinguishable biological species associated respectively with rice, Oryza, and the weed grass, Leersia hexandra. These planthopper species are sympatric over large areas of Asia and Australia. Populations of the two differ significantly in pulse repetition frequencies of male and female calls, but each also shows geographical variation for the same characteristics. These data are more consistent with theories of speciation involving sexual selection than with the recognition concept of species.

scholarly journals Individual vocal recognition across taxa: a review of the literature and a look into the future

2020 ◽  
Vol 375 (1802) ◽  
pp. 20190479 ◽  
Author(s):  
Nora V. Carlson ◽  
E. McKenna Kelly ◽  
Iain Couzin
Keyword(s):  
Signal Detection ◽  
Signal Detection Theory ◽  
Experimental Tests ◽  
Mate Recognition ◽  
Review Of The Literature ◽  
Theme Issue ◽  
Animal Kingdom ◽  
Vocal Recognition ◽  
Recognition Systems ◽  
Evolving Models

Individual vocal recognition (IVR) has been well studied in mammals and birds. These studies have primarily delved into understanding IVR in specific limited contexts (e.g. parent–offspring and mate recognition) where individuals discriminate one individual from all others. However, little research has examined IVR in more socially demanding circumstances, such as when an individual discriminates all individuals in their social or familial group apart. In this review, we describe what IVR is and suggest splitting studies of IVR into two general types based on what questions they answer (IVR-singular, and IVR-multiple). We explain how we currently test for IVR, and many of the benefits and drawbacks of different methods. We address why IVR is so prevalent in the animal kingdom, and the circumstances in which it is often found. Finally, we explain current weaknesses in IVR research including temporality, specificity, and taxonomic bias, and testing paradigms, and provide some solutions to address these weaknesses. This article is part of the theme issue ‘Signal detection theory in recognition systems: from evolving models to experimental tests’.

scholarly journals Alternative models of familiarity and false claims concerning social recognition systems

2014 ◽  
Vol 68 (10) ◽  
pp. 1563-1563 ◽  
Author(s):  
Paulien J. A. de Bruijn ◽  
Maurice W. Sabelis ◽  
Martijn Egas
Keyword(s):  
Social Recognition ◽  
Alternative Models ◽  
Recognition Systems

scholarly journals A COMMENT ON “MATE RECOGNITION SYSTEMS“

Evolution ◽  
1980 ◽  
Vol 34 (2) ◽  
pp. 330-331 ◽  
Author(s):  
Hugh E. Paterson
Keyword(s):  
Mate Recognition ◽  
Recognition Systems
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