Evidence of endozoochory in upland geese Chloephaga picta and white‐bellied seedsnipes Attagis malouinus in sub‐Antarctic Chile
Abstract Birds are known to act as potential vectors for the exogenous dispersal of bryophyte diaspores. Given the totipotency of vegetative tissue of many bryophytes, birds could also contribute to endozoochorous bryophyte dispersal. Research has shown that fecal samples of the upland goose (Chloep...
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ftdoajarticles:oai:doaj.org/article:21fe6987e18d4276a462b67c67984931 2023-05-15T13:58:42+02:00 Evidence of endozoochory in upland geese Chloephaga picta and white‐bellied seedsnipes Attagis malouinus in sub‐Antarctic Chile Xenabeth A. Lázaro Roy Mackenzie Jaime E. Jiménez 2021-07-01T00:00:00Z https://doi.org/10.1002/ece3.7725 https://doaj.org/article/21fe6987e18d4276a462b67c67984931 EN eng Wiley https://doi.org/10.1002/ece3.7725 https://doaj.org/toc/2045-7758 2045-7758 doi:10.1002/ece3.7725 https://doaj.org/article/21fe6987e18d4276a462b67c67984931 Ecology and Evolution, Vol 11, Iss 14, Pp 9191-9197 (2021) birds bryophyte dispersal endozoochory mosses sub‐Antarctic Ecology QH540-549.5 article 2021 ftdoajarticles https://doi.org/10.1002/ece3.7725 2022-12-31T13:50:50Z Abstract Birds are known to act as potential vectors for the exogenous dispersal of bryophyte diaspores. Given the totipotency of vegetative tissue of many bryophytes, birds could also contribute to endozoochorous bryophyte dispersal. Research has shown that fecal samples of the upland goose (Chloephaga picta) and white‐bellied seedsnipe (Attagis malouinus) contain bryophyte fragments. Although few fragments from bird feces have been known to regenerate, the evidence for the viability of diaspores following passage through the bird intestinal tract remains ambiguous. We evaluated the role of endozoochory in these same herbivorous and sympatric bird species in sub‐Antarctic Chile. We hypothesized that fragments of bryophyte gametophytes retrieved from their feces are viable and capable of regenerating new plant tissue. Eleven feces disk samples containing undetermined moss fragments from C. picta (N = 6) and A. malouinus (N = 5) and six moss fragment samples from wild‐collected mosses (Conostomum tetragonum, Syntrichia robusta, and Polytrichum strictum) were grown ex situ in peat soil and in vitro using a agar Gamborg medium. After 91 days, 20% of fragments from A. malouinus feces, 50% of fragments from C. picta feces, and 67% of propagules from wild mosses produced new growth. The fact that moss diaspores remained viable and can regenerate under experimental conditions following the passage through the intestinal tracts of these robust fliers and altitudinal and latitudinal migrants suggests that sub‐Antarctic birds might play a role in bryophyte dispersal. This relationship may have important implications in the way bryophytes disperse and colonize habitats facing climate change. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Ecology and Evolution 11 14 9191 9197 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
birds bryophyte dispersal endozoochory mosses sub‐Antarctic Ecology QH540-549.5 |
spellingShingle |
birds bryophyte dispersal endozoochory mosses sub‐Antarctic Ecology QH540-549.5 Xenabeth A. Lázaro Roy Mackenzie Jaime E. Jiménez Evidence of endozoochory in upland geese Chloephaga picta and white‐bellied seedsnipes Attagis malouinus in sub‐Antarctic Chile |
topic_facet |
birds bryophyte dispersal endozoochory mosses sub‐Antarctic Ecology QH540-549.5 |
description |
Abstract Birds are known to act as potential vectors for the exogenous dispersal of bryophyte diaspores. Given the totipotency of vegetative tissue of many bryophytes, birds could also contribute to endozoochorous bryophyte dispersal. Research has shown that fecal samples of the upland goose (Chloephaga picta) and white‐bellied seedsnipe (Attagis malouinus) contain bryophyte fragments. Although few fragments from bird feces have been known to regenerate, the evidence for the viability of diaspores following passage through the bird intestinal tract remains ambiguous. We evaluated the role of endozoochory in these same herbivorous and sympatric bird species in sub‐Antarctic Chile. We hypothesized that fragments of bryophyte gametophytes retrieved from their feces are viable and capable of regenerating new plant tissue. Eleven feces disk samples containing undetermined moss fragments from C. picta (N = 6) and A. malouinus (N = 5) and six moss fragment samples from wild‐collected mosses (Conostomum tetragonum, Syntrichia robusta, and Polytrichum strictum) were grown ex situ in peat soil and in vitro using a agar Gamborg medium. After 91 days, 20% of fragments from A. malouinus feces, 50% of fragments from C. picta feces, and 67% of propagules from wild mosses produced new growth. The fact that moss diaspores remained viable and can regenerate under experimental conditions following the passage through the intestinal tracts of these robust fliers and altitudinal and latitudinal migrants suggests that sub‐Antarctic birds might play a role in bryophyte dispersal. This relationship may have important implications in the way bryophytes disperse and colonize habitats facing climate change. |
format |
Article in Journal/Newspaper |
author |
Xenabeth A. Lázaro Roy Mackenzie Jaime E. Jiménez |
author_facet |
Xenabeth A. Lázaro Roy Mackenzie Jaime E. Jiménez |
author_sort |
Xenabeth A. Lázaro |
title |
Evidence of endozoochory in upland geese Chloephaga picta and white‐bellied seedsnipes Attagis malouinus in sub‐Antarctic Chile |
title_short |
Evidence of endozoochory in upland geese Chloephaga picta and white‐bellied seedsnipes Attagis malouinus in sub‐Antarctic Chile |
title_full |
Evidence of endozoochory in upland geese Chloephaga picta and white‐bellied seedsnipes Attagis malouinus in sub‐Antarctic Chile |
title_fullStr |
Evidence of endozoochory in upland geese Chloephaga picta and white‐bellied seedsnipes Attagis malouinus in sub‐Antarctic Chile |
title_full_unstemmed |
Evidence of endozoochory in upland geese Chloephaga picta and white‐bellied seedsnipes Attagis malouinus in sub‐Antarctic Chile |
title_sort |
evidence of endozoochory in upland geese chloephaga picta and white‐bellied seedsnipes attagis malouinus in sub‐antarctic chile |
publisher |
Wiley |
publishDate |
2021 |
url |
https://doi.org/10.1002/ece3.7725 https://doaj.org/article/21fe6987e18d4276a462b67c67984931 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Ecology and Evolution, Vol 11, Iss 14, Pp 9191-9197 (2021) |
op_relation |
https://doi.org/10.1002/ece3.7725 https://doaj.org/toc/2045-7758 2045-7758 doi:10.1002/ece3.7725 https://doaj.org/article/21fe6987e18d4276a462b67c67984931 |
op_doi |
https://doi.org/10.1002/ece3.7725 |
container_title |
Ecology and Evolution |
container_volume |
11 |
container_issue |
14 |
container_start_page |
9191 |
op_container_end_page |
9197 |
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1766267054419083264 |