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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ftdoajarticles:oai:doaj.org/article:f129b266378b4c31b9e11c723f39b23b 2023-05-15T15:13:47+02:00 Hippocampal neurogenesis and volume in migrating and wintering semipalmated sandpipers (Calidris pusilla). Nara Gyzely de Morais Magalhães Cristovam Guerreiro Diniz Daniel Guerreiro Diniz Ediely Pereira Henrique Patrick Douglas Corrêa Pereira Isis Ananda Matos Moraes Mauro André Damasceno de Melo David Francis Sherry Cristovam Wanderley Picanço Diniz 2017-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0179134 https://doaj.org/article/f129b266378b4c31b9e11c723f39b23b EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC5462419?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0179134 https://doaj.org/article/f129b266378b4c31b9e11c723f39b23b PLoS ONE, Vol 12, Iss 6, p e0179134 (2017) Medicine R Science Q article 2017 ftdoajarticles https://doi.org/10.1371/journal.pone.0179134 2022-12-31T00:52:20Z 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. Article in Journal/Newspaper Arctic Tundra Alaska Directory of Open Access Journals: DOAJ Articles Arctic Canada PLOS ONE 12 6 e0179134 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Nara Gyzely de Morais Magalhães Cristovam Guerreiro Diniz Daniel Guerreiro Diniz Ediely Pereira Henrique Patrick Douglas Corrêa Pereira Isis Ananda Matos Moraes Mauro André Damasceno de Melo David Francis Sherry Cristovam Wanderley Picanço Diniz Hippocampal neurogenesis and volume in migrating and wintering semipalmated sandpipers (Calidris pusilla). |
topic_facet |
Medicine R Science Q |
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 |
Article in Journal/Newspaper |
author |
Nara Gyzely de Morais Magalhães Cristovam Guerreiro Diniz Daniel Guerreiro Diniz Ediely Pereira Henrique Patrick Douglas Corrêa Pereira Isis Ananda Matos Moraes Mauro André Damasceno de Melo David Francis Sherry Cristovam Wanderley Picanço Diniz |
author_facet |
Nara Gyzely de Morais Magalhães Cristovam Guerreiro Diniz Daniel Guerreiro Diniz Ediely Pereira Henrique Patrick Douglas Corrêa Pereira Isis Ananda Matos Moraes Mauro André Damasceno de Melo David Francis Sherry Cristovam Wanderley Picanço Diniz |
author_sort |
Nara Gyzely de Morais Magalhães |
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 (PLoS) |
publishDate |
2017 |
url |
https://doi.org/10.1371/journal.pone.0179134 https://doaj.org/article/f129b266378b4c31b9e11c723f39b23b |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Tundra Alaska |
genre_facet |
Arctic Tundra Alaska |
op_source |
PLoS ONE, Vol 12, Iss 6, p e0179134 (2017) |
op_relation |
http://europepmc.org/articles/PMC5462419?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0179134 https://doaj.org/article/f129b266378b4c31b9e11c723f39b23b |
op_doi |
https://doi.org/10.1371/journal.pone.0179134 |
container_title |
PLOS ONE |
container_volume |
12 |
container_issue |
6 |
container_start_page |
e0179134 |
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