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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Online Access: | https://ir.lib.uwo.ca/brainpub/29 https://doi.org/10.1371/journal.pone.0179134 https://ir.lib.uwo.ca/context/brainpub/article/1030/viewcontent/Sherry_2017_PlosOne.pdf |
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ftunivwestonta:oai:ir.lib.uwo.ca:brainpub-1030 2023-10-01T03:54:20+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 2017-01-01T08:00:00Z application/pdf https://ir.lib.uwo.ca/brainpub/29 https://doi.org/10.1371/journal.pone.0179134 https://ir.lib.uwo.ca/context/brainpub/article/1030/viewcontent/Sherry_2017_PlosOne.pdf unknown Scholarship@Western https://ir.lib.uwo.ca/brainpub/29 doi:10.1371/journal.pone.0179134 https://ir.lib.uwo.ca/context/brainpub/article/1030/viewcontent/Sherry_2017_PlosOne.pdf http://creativecommons.org/licenses/by/4.0/ Brain and Mind Institute Researchers' Publications Alaska Animal Migration Animals Atlantic Ocean Brazil Breeding Canada Charadriiformes Feeding Behavior Hippocampus Neurogenesis Neurons Seasons Neurosciences Psychology article 2017 ftunivwestonta https://doi.org/10.1371/journal.pone.0179134 2023-09-03T07:32:23Z 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 The University of Western Ontario: Scholarship@Western Arctic Canada PLOS ONE 12 6 e0179134 |
institution |
Open Polar |
collection |
The University of Western Ontario: Scholarship@Western |
op_collection_id |
ftunivwestonta |
language |
unknown |
topic |
Alaska Animal Migration Animals Atlantic Ocean Brazil Breeding Canada Charadriiformes Feeding Behavior Hippocampus Neurogenesis Neurons Seasons Neurosciences Psychology |
spellingShingle |
Alaska Animal Migration Animals Atlantic Ocean Brazil Breeding Canada Charadriiformes Feeding Behavior Hippocampus Neurogenesis Neurons Seasons Neurosciences Psychology 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 |
Alaska Animal Migration Animals Atlantic Ocean Brazil Breeding Canada Charadriiformes Feeding Behavior Hippocampus Neurogenesis Neurons Seasons Neurosciences Psychology |
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 |
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 |
Scholarship@Western |
publishDate |
2017 |
url |
https://ir.lib.uwo.ca/brainpub/29 https://doi.org/10.1371/journal.pone.0179134 https://ir.lib.uwo.ca/context/brainpub/article/1030/viewcontent/Sherry_2017_PlosOne.pdf |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Tundra Alaska |
genre_facet |
Arctic Tundra Alaska |
op_source |
Brain and Mind Institute Researchers' Publications |
op_relation |
https://ir.lib.uwo.ca/brainpub/29 doi:10.1371/journal.pone.0179134 https://ir.lib.uwo.ca/context/brainpub/article/1030/viewcontent/Sherry_2017_PlosOne.pdf |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1371/journal.pone.0179134 |
container_title |
PLOS ONE |
container_volume |
12 |
container_issue |
6 |
container_start_page |
e0179134 |
_version_ |
1778521839134310400 |