Evidence that long‐distance dispersal of aquatic invertebrates by ducks increases with propagule size
Migratory ducks are key dispersal agents for aquatic organisms, yet differences in their potential for short- and long-distance dispersal are still poorly understood, particularly differences among aquatic invertebrate taxa. Using seven species of aquatic invertebrates and a duck species known to fe...
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Online Access: | https://pure.knaw.nl/portal/en/publications/08ed4f4c-1f22-4b5f-9b0b-4c51d353890a https://doi.org/10.1111/fwb.14146 https://hdl.handle.net/20.500.11755/08ed4f4c-1f22-4b5f-9b0b-4c51d353890a |
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ftknawnlpublic:oai:pure.knaw.nl:publications/08ed4f4c-1f22-4b5f-9b0b-4c51d353890a 2024-09-15T18:25:58+00:00 Evidence that long‐distance dispersal of aquatic invertebrates by ducks increases with propagule size Santamaría, Luis Charalambidou, Iris Viana, Duarte van Donk, Ellen 2023-07-05 https://pure.knaw.nl/portal/en/publications/08ed4f4c-1f22-4b5f-9b0b-4c51d353890a https://doi.org/10.1111/fwb.14146 https://hdl.handle.net/20.500.11755/08ed4f4c-1f22-4b5f-9b0b-4c51d353890a eng eng https://pure.knaw.nl/portal/en/publications/08ed4f4c-1f22-4b5f-9b0b-4c51d353890a info:eu-repo/semantics/openAccess Santamaría , L , Charalambidou , I , Viana , D & van Donk , E 2023 , ' Evidence that long‐distance dispersal of aquatic invertebrates by ducks increases with propagule size ' , Freshwater Biology . https://doi.org/10.1111/fwb.14146 dispersal curve gut passage hatching waterbird zoochory zooplankton article 2023 ftknawnlpublic https://doi.org/10.1111/fwb.1414620.500.11755/08ed4f4c-1f22-4b5f-9b0b-4c51d353890a 2024-07-29T23:40:18Z Migratory ducks are key dispersal agents for aquatic organisms, yet differences in their potential for short- and long-distance dispersal are still poorly understood, particularly differences among aquatic invertebrate taxa. Using seven species of aquatic invertebrates and a duck species known to feed on them in the wild (the northern shoveler) as a model system, we evaluated whether their potential for endozoochorous dispersal varies among five of the species and scales with propagule size for the seven species. We also tested the expectation of a lower dispersal potential for invertebrate propagules, as compared to plant seeds; and evaluated whether intra-specific variation (in particular, sexual dimorphism) influences the potential of waterbirds as dispersal vectors. An experiment with five invertebrate species demonstrated that most resting eggs (68%–95%) were retrieved by 4 hr after ingestion, with maximum gut-passage times ranging from 16 hr for Daphnia magna to 36 hr for Artemia salina and Thamnocephalus platyurus. Using models that combine migratory duck movements with gut-passage times, we show that aquatic invertebrates may disperse frequently over distances of 15–16 km (median dispersal distance) and regularly over distances up to 110–166 km (Q99 distance). Increasing propagule size resulted in increasing gut-passage times, decreasing survival of gut passage and decreasing hatching success. While propagule size had no effects on “regular” dispersal distances (mean, median, Q95 and Q99), the frequency of long-distance dispersal increased with it. Increasing propagule size therefore had two contrasting effects on invertebrate dispersal potential, decreasing the frequency of dispersal (fewer seeds dispersed) but increasing the potential for long-distance dispersal. Conclusions: We provide evidence that endozoochory of invertebrate propagules by waterbirds results in frequent dispersal among wetlands (tens of km) and regular dispersal at regional scale (over a hundred km). Article in Journal/Newspaper Northern Shoveler Shoveler Royal Netherlands Academy of Arts and Sciences Research Portal (KNAW) |
institution |
Open Polar |
collection |
Royal Netherlands Academy of Arts and Sciences Research Portal (KNAW) |
op_collection_id |
ftknawnlpublic |
language |
English |
topic |
dispersal curve gut passage hatching waterbird zoochory zooplankton |
spellingShingle |
dispersal curve gut passage hatching waterbird zoochory zooplankton Santamaría, Luis Charalambidou, Iris Viana, Duarte van Donk, Ellen Evidence that long‐distance dispersal of aquatic invertebrates by ducks increases with propagule size |
topic_facet |
dispersal curve gut passage hatching waterbird zoochory zooplankton |
description |
Migratory ducks are key dispersal agents for aquatic organisms, yet differences in their potential for short- and long-distance dispersal are still poorly understood, particularly differences among aquatic invertebrate taxa. Using seven species of aquatic invertebrates and a duck species known to feed on them in the wild (the northern shoveler) as a model system, we evaluated whether their potential for endozoochorous dispersal varies among five of the species and scales with propagule size for the seven species. We also tested the expectation of a lower dispersal potential for invertebrate propagules, as compared to plant seeds; and evaluated whether intra-specific variation (in particular, sexual dimorphism) influences the potential of waterbirds as dispersal vectors. An experiment with five invertebrate species demonstrated that most resting eggs (68%–95%) were retrieved by 4 hr after ingestion, with maximum gut-passage times ranging from 16 hr for Daphnia magna to 36 hr for Artemia salina and Thamnocephalus platyurus. Using models that combine migratory duck movements with gut-passage times, we show that aquatic invertebrates may disperse frequently over distances of 15–16 km (median dispersal distance) and regularly over distances up to 110–166 km (Q99 distance). Increasing propagule size resulted in increasing gut-passage times, decreasing survival of gut passage and decreasing hatching success. While propagule size had no effects on “regular” dispersal distances (mean, median, Q95 and Q99), the frequency of long-distance dispersal increased with it. Increasing propagule size therefore had two contrasting effects on invertebrate dispersal potential, decreasing the frequency of dispersal (fewer seeds dispersed) but increasing the potential for long-distance dispersal. Conclusions: We provide evidence that endozoochory of invertebrate propagules by waterbirds results in frequent dispersal among wetlands (tens of km) and regular dispersal at regional scale (over a hundred km). |
format |
Article in Journal/Newspaper |
author |
Santamaría, Luis Charalambidou, Iris Viana, Duarte van Donk, Ellen |
author_facet |
Santamaría, Luis Charalambidou, Iris Viana, Duarte van Donk, Ellen |
author_sort |
Santamaría, Luis |
title |
Evidence that long‐distance dispersal of aquatic invertebrates by ducks increases with propagule size |
title_short |
Evidence that long‐distance dispersal of aquatic invertebrates by ducks increases with propagule size |
title_full |
Evidence that long‐distance dispersal of aquatic invertebrates by ducks increases with propagule size |
title_fullStr |
Evidence that long‐distance dispersal of aquatic invertebrates by ducks increases with propagule size |
title_full_unstemmed |
Evidence that long‐distance dispersal of aquatic invertebrates by ducks increases with propagule size |
title_sort |
evidence that long‐distance dispersal of aquatic invertebrates by ducks increases with propagule size |
publishDate |
2023 |
url |
https://pure.knaw.nl/portal/en/publications/08ed4f4c-1f22-4b5f-9b0b-4c51d353890a https://doi.org/10.1111/fwb.14146 https://hdl.handle.net/20.500.11755/08ed4f4c-1f22-4b5f-9b0b-4c51d353890a |
genre |
Northern Shoveler Shoveler |
genre_facet |
Northern Shoveler Shoveler |
op_source |
Santamaría , L , Charalambidou , I , Viana , D & van Donk , E 2023 , ' Evidence that long‐distance dispersal of aquatic invertebrates by ducks increases with propagule size ' , Freshwater Biology . https://doi.org/10.1111/fwb.14146 |
op_relation |
https://pure.knaw.nl/portal/en/publications/08ed4f4c-1f22-4b5f-9b0b-4c51d353890a |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/fwb.1414620.500.11755/08ed4f4c-1f22-4b5f-9b0b-4c51d353890a |
_version_ |
1810466427686092800 |