Host-feeding sources and habitats jointly affect wing developmental stability depending on sex in the major Chagas disease vector Triatoma infestans
Fluctuating asymmetry (FA), a slight and random departure from bilateral symmetry that is normally distributed around a 0 mean, has been widely used to infer developmental instability. We investigated whether habitats (ecotopes) and host-feeding sources influenced wing FA of the hematophagous bug Tr...
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2015
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15671348_v36_n_p539_Nattero http://hdl.handle.net/20.500.12110/paper_15671348_v36_n_p539_Nattero |
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paper:paper_15671348_v36_n_p539_Nattero2023-06-08T16:23:58Z Host-feeding sources and habitats jointly affect wing developmental stability depending on sex in the major Chagas disease vector Triatoma infestans Environmental variance Fluctuating asymmetry Geometric morphometrics Triatominae Wing morphology adult animal experiment animal tissue Argentina Article controlled study developmental stability feeding female habitat larval development male nonhuman physical parameters priority journal rural population sex difference Triatoma infestans wing shape asymmetry wing size asymmetry anatomy and histology animal Chagas disease disease carrier ecosystem feeding behavior host parasite interaction human physiology transmission Triatoma wing Animals Argentina Chagas Disease Ecosystem Feeding Behavior Female Host-Parasite Interactions Humans Insect Vectors Male Triatoma Wings, Animal Fluctuating asymmetry (FA), a slight and random departure from bilateral symmetry that is normally distributed around a 0 mean, has been widely used to infer developmental instability. We investigated whether habitats (ecotopes) and host-feeding sources influenced wing FA of the hematophagous bug Triatoma infestans. Because bug populations occupying distinct habitats differed substantially and consistently in various aspects such as feeding rates, engorgement status and the proportion of gravid females, we predicted that bugs from more open peridomestic habitats (i.e., goat corrals) were more likely to exhibit higher FA than bugs from domiciles. We examined patterns of asymmetry and the amount of wing size and shape FA in 196 adult T. infestans collected across a gradient of habitat suitability and stability that decreased from domiciles, storerooms, kitchens, chicken coops, pig corrals, to goat corrals in a well-defined area of Figueroa, northwestern Argentina. The bugs had unmixed blood meals on human, chicken, pig and goat depending on the bug collection ecotope. We documented the occurrence of FA in wing shape for bugs fed on all host-feeding sources and in all ecotopes except for females from domiciles or fed on humans. FA indices for wing shape differed significantly among host-feeding sources, ecotopes and sexes. The patterns of wing asymmetry in females from domiciles and from goat corrals were significantly different; differences in male FA were congruent with evidence showing that they had higher mobility than females across habitats. The host-feeding sources and habitats of T. infestans affected wing developmental stability depending on sex. © 2015 Elsevier B.V. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15671348_v36_n_p539_Nattero http://hdl.handle.net/20.500.12110/paper_15671348_v36_n_p539_Nattero |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Environmental variance Fluctuating asymmetry Geometric morphometrics Triatominae Wing morphology adult animal experiment animal tissue Argentina Article controlled study developmental stability feeding female habitat larval development male nonhuman physical parameters priority journal rural population sex difference Triatoma infestans wing shape asymmetry wing size asymmetry anatomy and histology animal Chagas disease disease carrier ecosystem feeding behavior host parasite interaction human physiology transmission Triatoma wing Animals Argentina Chagas Disease Ecosystem Feeding Behavior Female Host-Parasite Interactions Humans Insect Vectors Male Triatoma Wings, Animal |
| spellingShingle |
Environmental variance Fluctuating asymmetry Geometric morphometrics Triatominae Wing morphology adult animal experiment animal tissue Argentina Article controlled study developmental stability feeding female habitat larval development male nonhuman physical parameters priority journal rural population sex difference Triatoma infestans wing shape asymmetry wing size asymmetry anatomy and histology animal Chagas disease disease carrier ecosystem feeding behavior host parasite interaction human physiology transmission Triatoma wing Animals Argentina Chagas Disease Ecosystem Feeding Behavior Female Host-Parasite Interactions Humans Insect Vectors Male Triatoma Wings, Animal Host-feeding sources and habitats jointly affect wing developmental stability depending on sex in the major Chagas disease vector Triatoma infestans |
| topic_facet |
Environmental variance Fluctuating asymmetry Geometric morphometrics Triatominae Wing morphology adult animal experiment animal tissue Argentina Article controlled study developmental stability feeding female habitat larval development male nonhuman physical parameters priority journal rural population sex difference Triatoma infestans wing shape asymmetry wing size asymmetry anatomy and histology animal Chagas disease disease carrier ecosystem feeding behavior host parasite interaction human physiology transmission Triatoma wing Animals Argentina Chagas Disease Ecosystem Feeding Behavior Female Host-Parasite Interactions Humans Insect Vectors Male Triatoma Wings, Animal |
| description |
Fluctuating asymmetry (FA), a slight and random departure from bilateral symmetry that is normally distributed around a 0 mean, has been widely used to infer developmental instability. We investigated whether habitats (ecotopes) and host-feeding sources influenced wing FA of the hematophagous bug Triatoma infestans. Because bug populations occupying distinct habitats differed substantially and consistently in various aspects such as feeding rates, engorgement status and the proportion of gravid females, we predicted that bugs from more open peridomestic habitats (i.e., goat corrals) were more likely to exhibit higher FA than bugs from domiciles. We examined patterns of asymmetry and the amount of wing size and shape FA in 196 adult T. infestans collected across a gradient of habitat suitability and stability that decreased from domiciles, storerooms, kitchens, chicken coops, pig corrals, to goat corrals in a well-defined area of Figueroa, northwestern Argentina. The bugs had unmixed blood meals on human, chicken, pig and goat depending on the bug collection ecotope. We documented the occurrence of FA in wing shape for bugs fed on all host-feeding sources and in all ecotopes except for females from domiciles or fed on humans. FA indices for wing shape differed significantly among host-feeding sources, ecotopes and sexes. The patterns of wing asymmetry in females from domiciles and from goat corrals were significantly different; differences in male FA were congruent with evidence showing that they had higher mobility than females across habitats. The host-feeding sources and habitats of T. infestans affected wing developmental stability depending on sex. © 2015 Elsevier B.V. |
| title |
Host-feeding sources and habitats jointly affect wing developmental stability depending on sex in the major Chagas disease vector Triatoma infestans |
| title_short |
Host-feeding sources and habitats jointly affect wing developmental stability depending on sex in the major Chagas disease vector Triatoma infestans |
| title_full |
Host-feeding sources and habitats jointly affect wing developmental stability depending on sex in the major Chagas disease vector Triatoma infestans |
| title_fullStr |
Host-feeding sources and habitats jointly affect wing developmental stability depending on sex in the major Chagas disease vector Triatoma infestans |
| title_full_unstemmed |
Host-feeding sources and habitats jointly affect wing developmental stability depending on sex in the major Chagas disease vector Triatoma infestans |
| title_sort |
host-feeding sources and habitats jointly affect wing developmental stability depending on sex in the major chagas disease vector triatoma infestans |
| publishDate |
2015 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15671348_v36_n_p539_Nattero http://hdl.handle.net/20.500.12110/paper_15671348_v36_n_p539_Nattero |
| _version_ |
1768546320498294784 |