Haemosporidian parasites and leukocyte profiles of pre-migratory rosy starlings (Pastor roseus) brought into captivity

Immune response to pathogens such as avian malaria (Plasmodium spp.) and related haemosporidian parasites (Haemoproteus spp. and Leucocytozoon spp.) can lead to increases in energy demands of birds. Migrations are energetically costly for birds and require resources that could be otherwise invested...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Dimitrov Dimitar, Marinov Martin P., Bobeva Aneliya, Ilieva Mihaela, Bedev Kiril, Atanasov Teodor, Zehtindjiev Pavel
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2019
Materias:	irruptive migrant leukocytes haemoproteus pastoris intensity immune reaction Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/8424860b14004b31af0787ff375d623c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:8424860b14004b31af0787ff375d623c
record_format	dspace
spelling	oai:doaj.org-article:8424860b14004b31af0787ff375d623c2021-12-02T19:17:53ZHaemosporidian parasites and leukocyte profiles of pre-migratory rosy starlings (Pastor roseus) brought into captivity2084-883810.1515/ami-2019-0005https://doaj.org/article/8424860b14004b31af0787ff375d623c2019-12-01T00:00:00Zhttps://doi.org/10.1515/ami-2019-0005https://doaj.org/toc/2084-8838Immune response to pathogens such as avian malaria (Plasmodium spp.) and related haemosporidian parasites (Haemoproteus spp. and Leucocytozoon spp.) can lead to increases in energy demands of birds. Migrations are energetically costly for birds and require resources that could be otherwise invested in immune defence against pathogens. Here, we examined the prevalence and intensity of haemosporidian parasites (Apicomplexa, Haemosporida) in rosy starlings (Pastor roseus), an irruptive migrant on the Balkans, during their pre-migratory period. We further evaluated if these infections affected the stress levels of birds brought into overnight captivity, using leukocyte profiles (ratios of heterophils to lymphocytes, or H/L ratios). Haemosporidian parasites were detected based on microscopic examination, PCR and sequencing. We found high prevalence of haemosporidian parasites (83.9%) in rosy starlings (n=31), with predominant infections of Haemoproteus pastoris (cytochrome b lineage LAMPUR01) (80.1%). All birds had high heterophil/lymphocyte ratios (mean = 3.86), indicating the transition to captivity was stressful. However, there was no added stress from blood parasite infection during captivity, since infected birds did not have significantly higher heterophil/lymphocyte ratios than uninfected birds, despite all birds facing the same stress conditions. There was a negative correlation between intensity of H. pastoris and monocyte proportions, which may indicate an association with infection, or an artefact of the stress-induced shift in leukocyte profile following captivity. Our findings suggest that blood parasites have minimal additional impact on rosy starlings during an acute stress scenario (overnight captivity), arguing that they carry little cost to the energetically challenging migratory flight.Dimitrov DimitarMarinov Martin P.Bobeva AneliyaIlieva MihaelaBedev KirilAtanasov TeodorZehtindjiev PavelDe Gruyterarticleirruptive migrantleukocyteshaemoproteus pastorisintensityimmune reactionBiology (General)QH301-705.5ENAnimal Migration, Vol 6, Iss 1, Pp 41-48 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	irruptive migrant leukocytes haemoproteus pastoris intensity immune reaction Biology (General) QH301-705.5
spellingShingle	irruptive migrant leukocytes haemoproteus pastoris intensity immune reaction Biology (General) QH301-705.5 Dimitrov Dimitar Marinov Martin P. Bobeva Aneliya Ilieva Mihaela Bedev Kiril Atanasov Teodor Zehtindjiev Pavel Haemosporidian parasites and leukocyte profiles of pre-migratory rosy starlings (Pastor roseus) brought into captivity
description	Immune response to pathogens such as avian malaria (Plasmodium spp.) and related haemosporidian parasites (Haemoproteus spp. and Leucocytozoon spp.) can lead to increases in energy demands of birds. Migrations are energetically costly for birds and require resources that could be otherwise invested in immune defence against pathogens. Here, we examined the prevalence and intensity of haemosporidian parasites (Apicomplexa, Haemosporida) in rosy starlings (Pastor roseus), an irruptive migrant on the Balkans, during their pre-migratory period. We further evaluated if these infections affected the stress levels of birds brought into overnight captivity, using leukocyte profiles (ratios of heterophils to lymphocytes, or H/L ratios). Haemosporidian parasites were detected based on microscopic examination, PCR and sequencing. We found high prevalence of haemosporidian parasites (83.9%) in rosy starlings (n=31), with predominant infections of Haemoproteus pastoris (cytochrome b lineage LAMPUR01) (80.1%). All birds had high heterophil/lymphocyte ratios (mean = 3.86), indicating the transition to captivity was stressful. However, there was no added stress from blood parasite infection during captivity, since infected birds did not have significantly higher heterophil/lymphocyte ratios than uninfected birds, despite all birds facing the same stress conditions. There was a negative correlation between intensity of H. pastoris and monocyte proportions, which may indicate an association with infection, or an artefact of the stress-induced shift in leukocyte profile following captivity. Our findings suggest that blood parasites have minimal additional impact on rosy starlings during an acute stress scenario (overnight captivity), arguing that they carry little cost to the energetically challenging migratory flight.
format	article
author	Dimitrov Dimitar Marinov Martin P. Bobeva Aneliya Ilieva Mihaela Bedev Kiril Atanasov Teodor Zehtindjiev Pavel
author_facet	Dimitrov Dimitar Marinov Martin P. Bobeva Aneliya Ilieva Mihaela Bedev Kiril Atanasov Teodor Zehtindjiev Pavel
author_sort	Dimitrov Dimitar
title	Haemosporidian parasites and leukocyte profiles of pre-migratory rosy starlings (Pastor roseus) brought into captivity
title_short	Haemosporidian parasites and leukocyte profiles of pre-migratory rosy starlings (Pastor roseus) brought into captivity
title_full	Haemosporidian parasites and leukocyte profiles of pre-migratory rosy starlings (Pastor roseus) brought into captivity
title_fullStr	Haemosporidian parasites and leukocyte profiles of pre-migratory rosy starlings (Pastor roseus) brought into captivity
title_full_unstemmed	Haemosporidian parasites and leukocyte profiles of pre-migratory rosy starlings (Pastor roseus) brought into captivity
title_sort	haemosporidian parasites and leukocyte profiles of pre-migratory rosy starlings (pastor roseus) brought into captivity
publisher	De Gruyter
publishDate	2019
url	https://doaj.org/article/8424860b14004b31af0787ff375d623c
work_keys_str_mv	AT dimitrovdimitar haemosporidianparasitesandleukocyteprofilesofpremigratoryrosystarlingspastorroseusbroughtintocaptivity AT marinovmartinp haemosporidianparasitesandleukocyteprofilesofpremigratoryrosystarlingspastorroseusbroughtintocaptivity AT bobevaaneliya haemosporidianparasitesandleukocyteprofilesofpremigratoryrosystarlingspastorroseusbroughtintocaptivity AT ilievamihaela haemosporidianparasitesandleukocyteprofilesofpremigratoryrosystarlingspastorroseusbroughtintocaptivity AT bedevkiril haemosporidianparasitesandleukocyteprofilesofpremigratoryrosystarlingspastorroseusbroughtintocaptivity AT atanasovteodor haemosporidianparasitesandleukocyteprofilesofpremigratoryrosystarlingspastorroseusbroughtintocaptivity AT zehtindjievpavel haemosporidianparasitesandleukocyteprofilesofpremigratoryrosystarlingspastorroseusbroughtintocaptivity
_version_	1718376862538792960

Haemosporidian parasites and leukocyte profiles of pre-migratory rosy starlings (Pastor roseus) brought into captivity

Ejemplares similares