Population characteristics may reduce the levels of individual call identity.
Individual variability influences the demographic and evolutionary dynamics of spatially structured populations, and conversely ecological and evolutionary dynamics provide the context under which variations at the individual level occur. Therefore, it is essential to identify and characterize the i...
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2013
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oai:doaj.org-article:0f185cb4b67b4a77bcd54d0d5f76c3982021-11-18T08:49:11ZPopulation characteristics may reduce the levels of individual call identity.1932-620310.1371/journal.pone.0077557https://doaj.org/article/0f185cb4b67b4a77bcd54d0d5f76c3982013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24204869/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Individual variability influences the demographic and evolutionary dynamics of spatially structured populations, and conversely ecological and evolutionary dynamics provide the context under which variations at the individual level occur. Therefore, it is essential to identify and characterize the importance of the different factors that may promote or hinder individual variability. Animal signaling is a prime example of a type of behavior that is largely dependent on both the features of individuals and the characteristics of the population to which they belong. After 10 years studying the dynamics of a population of a long-lived species, the eagle owl (Bubo bubo), we investigated the emergence and maintenance of traits that reveal individual identity by focusing on vocal features. We found that individuals inhabiting a high density population characterized by a relative lack of heterogeneity (in terms of prey availability and breeding success) among breeding sites might be selected for reducing the levels of identity. Two non-mutually exclusive hypotheses may explain the structural call patterns we detected: (1) similarity in calls may be principally a consequence of the particular characteristics of the population; and (2) high density may encourage individuals to mimic each other's vocalizations in a cascade effect, leading to a widespread and unique communication network.María del Mar DelgadoEleonora CaferriMaria MéndezJosé A GodoyLetizia CampioniVincenzo PenterianiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 10, p e77557 (2013) |
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DOAJ |
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Medicine R Science Q |
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Medicine R Science Q María del Mar Delgado Eleonora Caferri Maria Méndez José A Godoy Letizia Campioni Vincenzo Penteriani Population characteristics may reduce the levels of individual call identity. |
| description |
Individual variability influences the demographic and evolutionary dynamics of spatially structured populations, and conversely ecological and evolutionary dynamics provide the context under which variations at the individual level occur. Therefore, it is essential to identify and characterize the importance of the different factors that may promote or hinder individual variability. Animal signaling is a prime example of a type of behavior that is largely dependent on both the features of individuals and the characteristics of the population to which they belong. After 10 years studying the dynamics of a population of a long-lived species, the eagle owl (Bubo bubo), we investigated the emergence and maintenance of traits that reveal individual identity by focusing on vocal features. We found that individuals inhabiting a high density population characterized by a relative lack of heterogeneity (in terms of prey availability and breeding success) among breeding sites might be selected for reducing the levels of identity. Two non-mutually exclusive hypotheses may explain the structural call patterns we detected: (1) similarity in calls may be principally a consequence of the particular characteristics of the population; and (2) high density may encourage individuals to mimic each other's vocalizations in a cascade effect, leading to a widespread and unique communication network. |
| format |
article |
| author |
María del Mar Delgado Eleonora Caferri Maria Méndez José A Godoy Letizia Campioni Vincenzo Penteriani |
| author_facet |
María del Mar Delgado Eleonora Caferri Maria Méndez José A Godoy Letizia Campioni Vincenzo Penteriani |
| author_sort |
María del Mar Delgado |
| title |
Population characteristics may reduce the levels of individual call identity. |
| title_short |
Population characteristics may reduce the levels of individual call identity. |
| title_full |
Population characteristics may reduce the levels of individual call identity. |
| title_fullStr |
Population characteristics may reduce the levels of individual call identity. |
| title_full_unstemmed |
Population characteristics may reduce the levels of individual call identity. |
| title_sort |
population characteristics may reduce the levels of individual call identity. |
| publisher |
Public Library of Science (PLoS) |
| publishDate |
2013 |
| url |
https://doaj.org/article/0f185cb4b67b4a77bcd54d0d5f76c398 |
| work_keys_str_mv |
AT mariadelmardelgado populationcharacteristicsmayreducethelevelsofindividualcallidentity AT eleonoracaferri populationcharacteristicsmayreducethelevelsofindividualcallidentity AT mariamendez populationcharacteristicsmayreducethelevelsofindividualcallidentity AT joseagodoy populationcharacteristicsmayreducethelevelsofindividualcallidentity AT letiziacampioni populationcharacteristicsmayreducethelevelsofindividualcallidentity AT vincenzopenteriani populationcharacteristicsmayreducethelevelsofindividualcallidentity |
| _version_ |
1718421246179278848 |