Hippocampal neurogenesis and volume in migrating and wintering semipalmated sandpipers (Calidris pusilla)
Long distance migratory birds find their way by sensing and integrating information from a large number of cues in their environment. These cues are essential to navigate over thousands of kilometers and reach the same breeding, stopover, and wintering sites every year. The semipalmated sandpiper (C...
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ftpubmed:oai:pubmedcentral.nih.gov:5462419 2023-05-15T15:12:55+02:00 Hippocampal neurogenesis and volume in migrating and wintering semipalmated sandpipers (Calidris pusilla) de Morais Magalhães, Nara Gyzely Guerreiro Diniz, Cristovam Guerreiro Diniz, Daniel Pereira Henrique, Ediely Corrêa Pereira, Patrick Douglas Matos Moraes, Isis Ananda Damasceno de Melo, Mauro André Sherry, David Francis Wanderley Picanço Diniz, Cristovam 2017-06-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5462419/ http://www.ncbi.nlm.nih.gov/pubmed/28591201 https://doi.org/10.1371/journal.pone.0179134 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5462419/ http://www.ncbi.nlm.nih.gov/pubmed/28591201 http://dx.doi.org/10.1371/journal.pone.0179134 © 2017 de Morais Magalhães et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2017 ftpubmed https://doi.org/10.1371/journal.pone.0179134 2017-06-25T00:01:51Z Long distance migratory birds find their way by sensing and integrating information from a large number of cues in their environment. These cues are essential to navigate over thousands of kilometers and reach the same breeding, stopover, and wintering sites every year. The semipalmated sandpiper (Calidris pusilla) is a long-distance migrant that breeds in the arctic tundra of Canada and Alaska and winters on the northeast coast of South America. Its fall migration includes a 5,300-kilometer nonstop flight over the Atlantic Ocean. The avian hippocampus has been proposed to play a central role in the integration of multisensory spatial information for navigation. Hippocampal neurogenesis may contribute to hippocampal function and a variety of factors including cognitive activity, exercise, enrichment, diet and stress influence neurogenesis in the hippocampus. We quantified hippocampal neurogenesis and volume in adult migrating and wintering semipalmated sandpipers using stereological counts of doublecortin (DCX) immunolabeled immature neurons. We found that birds captured in the coastal region of Bragança, Brazil during the wintering period had more DCX positive neurons and larger volume in the hippocampus than individuals captured in the Bay of Fundy, Canada during fall migration. We also estimate the number of NeuN immunolabeled cells in migrating and wintering birds and found no significant differences between them. These findings suggest that, at this time window, neurogenesis just replaced neurons that might be lost during the transatlantic flight. Our findings also show that in active fall migrating birds, a lower level of adult hippocampal neurogenesis is associated with a smaller hippocampal formation. High levels of adult hippocampal neurogenesis and a larger hippocampal formation found in wintering birds may be late occurring effects of long distance migratory flight or the result of conditions the birds experienced while wintering. Text Arctic Tundra Alaska PubMed Central (PMC) Arctic Canada PLOS ONE 12 6 e0179134 |
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Research Article de Morais Magalhães, Nara Gyzely Guerreiro Diniz, Cristovam Guerreiro Diniz, Daniel Pereira Henrique, Ediely Corrêa Pereira, Patrick Douglas Matos Moraes, Isis Ananda Damasceno de Melo, Mauro André Sherry, David Francis Wanderley Picanço Diniz, Cristovam Hippocampal neurogenesis and volume in migrating and wintering semipalmated sandpipers (Calidris pusilla) |
topic_facet |
Research Article |
description |
Long distance migratory birds find their way by sensing and integrating information from a large number of cues in their environment. These cues are essential to navigate over thousands of kilometers and reach the same breeding, stopover, and wintering sites every year. The semipalmated sandpiper (Calidris pusilla) is a long-distance migrant that breeds in the arctic tundra of Canada and Alaska and winters on the northeast coast of South America. Its fall migration includes a 5,300-kilometer nonstop flight over the Atlantic Ocean. The avian hippocampus has been proposed to play a central role in the integration of multisensory spatial information for navigation. Hippocampal neurogenesis may contribute to hippocampal function and a variety of factors including cognitive activity, exercise, enrichment, diet and stress influence neurogenesis in the hippocampus. We quantified hippocampal neurogenesis and volume in adult migrating and wintering semipalmated sandpipers using stereological counts of doublecortin (DCX) immunolabeled immature neurons. We found that birds captured in the coastal region of Bragança, Brazil during the wintering period had more DCX positive neurons and larger volume in the hippocampus than individuals captured in the Bay of Fundy, Canada during fall migration. We also estimate the number of NeuN immunolabeled cells in migrating and wintering birds and found no significant differences between them. These findings suggest that, at this time window, neurogenesis just replaced neurons that might be lost during the transatlantic flight. Our findings also show that in active fall migrating birds, a lower level of adult hippocampal neurogenesis is associated with a smaller hippocampal formation. High levels of adult hippocampal neurogenesis and a larger hippocampal formation found in wintering birds may be late occurring effects of long distance migratory flight or the result of conditions the birds experienced while wintering. |
format |
Text |
author |
de Morais Magalhães, Nara Gyzely Guerreiro Diniz, Cristovam Guerreiro Diniz, Daniel Pereira Henrique, Ediely Corrêa Pereira, Patrick Douglas Matos Moraes, Isis Ananda Damasceno de Melo, Mauro André Sherry, David Francis Wanderley Picanço Diniz, Cristovam |
author_facet |
de Morais Magalhães, Nara Gyzely Guerreiro Diniz, Cristovam Guerreiro Diniz, Daniel Pereira Henrique, Ediely Corrêa Pereira, Patrick Douglas Matos Moraes, Isis Ananda Damasceno de Melo, Mauro André Sherry, David Francis Wanderley Picanço Diniz, Cristovam |
author_sort |
de Morais Magalhães, Nara Gyzely |
title |
Hippocampal neurogenesis and volume in migrating and wintering semipalmated sandpipers (Calidris pusilla) |
title_short |
Hippocampal neurogenesis and volume in migrating and wintering semipalmated sandpipers (Calidris pusilla) |
title_full |
Hippocampal neurogenesis and volume in migrating and wintering semipalmated sandpipers (Calidris pusilla) |
title_fullStr |
Hippocampal neurogenesis and volume in migrating and wintering semipalmated sandpipers (Calidris pusilla) |
title_full_unstemmed |
Hippocampal neurogenesis and volume in migrating and wintering semipalmated sandpipers (Calidris pusilla) |
title_sort |
hippocampal neurogenesis and volume in migrating and wintering semipalmated sandpipers (calidris pusilla) |
publisher |
Public Library of Science |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5462419/ http://www.ncbi.nlm.nih.gov/pubmed/28591201 https://doi.org/10.1371/journal.pone.0179134 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Tundra Alaska |
genre_facet |
Arctic Tundra Alaska |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5462419/ http://www.ncbi.nlm.nih.gov/pubmed/28591201 http://dx.doi.org/10.1371/journal.pone.0179134 |
op_rights |
© 2017 de Morais Magalhães et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0179134 |
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PLOS ONE |
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12 |
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6 |
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e0179134 |
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