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Host sex, size, and hemoparasite infection influence the effects of ectoparasitic burdens on free‐ranging iguanas
Investigations focusing on host–ectoparasite interactions in animals have revealed asymptomatic to severe health and fitness consequences suggesting that species mobilize different interspecific response mechanisms. Fewer studies, however, have examined intraspecific responses to ectoparasitic burde...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6392384/ https://www.ncbi.nlm.nih.gov/pubmed/30847084 http://dx.doi.org/10.1002/ece3.4887 |
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author | Knapp, Charles R. Perez‐Heydrich, Caro Zachariah, Trevor T. Jollay, Jill Schnelle, Amy N. Buckner, Sandra D. Lattin, Christine R. Romero, L. Michael |
author_facet | Knapp, Charles R. Perez‐Heydrich, Caro Zachariah, Trevor T. Jollay, Jill Schnelle, Amy N. Buckner, Sandra D. Lattin, Christine R. Romero, L. Michael |
author_sort | Knapp, Charles R. |
collection | PubMed |
description | Investigations focusing on host–ectoparasite interactions in animals have revealed asymptomatic to severe health and fitness consequences suggesting that species mobilize different interspecific response mechanisms. Fewer studies, however, have examined intraspecific responses to ectoparasitic burdens. In this study, we analyzed host health and fitness responses to increasing ectoparasite burdens along with the presence/absence of hemoparasites of free‐ranging insular rock iguanas (Cyclura cychlura) in The Bahamas. Using hematology, plasma biochemistry, as well as body condition and growth rate comparisons, we failed to find significant associations of tick burdens with annual growth rate, corticosterone, packed cell volume, total white blood cell, and heterophil, monocyte, eosinophil or hemoglobin measures. We did, however, find mixed and significant associations of tick burdens with lymphocyte and basophil counts, heterophil‐to‐lymphocyte ratios, and body condition indices. These associations varied by sex, size, and hemoparasite infection status suggesting that different life stages of iguanas may invest differently in immune responses, and impacts may be modulated based on size and sex of hosts, and coinfection status. |
format | Online Article Text |
id | pubmed-6392384 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-63923842019-03-07 Host sex, size, and hemoparasite infection influence the effects of ectoparasitic burdens on free‐ranging iguanas Knapp, Charles R. Perez‐Heydrich, Caro Zachariah, Trevor T. Jollay, Jill Schnelle, Amy N. Buckner, Sandra D. Lattin, Christine R. Romero, L. Michael Ecol Evol Original Research Investigations focusing on host–ectoparasite interactions in animals have revealed asymptomatic to severe health and fitness consequences suggesting that species mobilize different interspecific response mechanisms. Fewer studies, however, have examined intraspecific responses to ectoparasitic burdens. In this study, we analyzed host health and fitness responses to increasing ectoparasite burdens along with the presence/absence of hemoparasites of free‐ranging insular rock iguanas (Cyclura cychlura) in The Bahamas. Using hematology, plasma biochemistry, as well as body condition and growth rate comparisons, we failed to find significant associations of tick burdens with annual growth rate, corticosterone, packed cell volume, total white blood cell, and heterophil, monocyte, eosinophil or hemoglobin measures. We did, however, find mixed and significant associations of tick burdens with lymphocyte and basophil counts, heterophil‐to‐lymphocyte ratios, and body condition indices. These associations varied by sex, size, and hemoparasite infection status suggesting that different life stages of iguanas may invest differently in immune responses, and impacts may be modulated based on size and sex of hosts, and coinfection status. John Wiley and Sons Inc. 2019-01-15 /pmc/articles/PMC6392384/ /pubmed/30847084 http://dx.doi.org/10.1002/ece3.4887 Text en © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Knapp, Charles R. Perez‐Heydrich, Caro Zachariah, Trevor T. Jollay, Jill Schnelle, Amy N. Buckner, Sandra D. Lattin, Christine R. Romero, L. Michael Host sex, size, and hemoparasite infection influence the effects of ectoparasitic burdens on free‐ranging iguanas |
title | Host sex, size, and hemoparasite infection influence the effects of ectoparasitic burdens on free‐ranging iguanas |
title_full | Host sex, size, and hemoparasite infection influence the effects of ectoparasitic burdens on free‐ranging iguanas |
title_fullStr | Host sex, size, and hemoparasite infection influence the effects of ectoparasitic burdens on free‐ranging iguanas |
title_full_unstemmed | Host sex, size, and hemoparasite infection influence the effects of ectoparasitic burdens on free‐ranging iguanas |
title_short | Host sex, size, and hemoparasite infection influence the effects of ectoparasitic burdens on free‐ranging iguanas |
title_sort | host sex, size, and hemoparasite infection influence the effects of ectoparasitic burdens on free‐ranging iguanas |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6392384/ https://www.ncbi.nlm.nih.gov/pubmed/30847084 http://dx.doi.org/10.1002/ece3.4887 |
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