Timing is everything: priority effects alter community invasibility after disturbance.
Theory suggests that communities should be more open to the establishment of regional species following disturbance because disturbance may make more resources available to dispersers. However, after an initial period of high invasibility, growth of the resident community may lead to the monopolizat...
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ftcdlib:oai:escholarship.org/ark:/13030/qt7vj552jp 2023-05-15T18:40:26+02:00 Timing is everything: priority effects alter community invasibility after disturbance. Symons, Celia C Arnott, Shelley E 397 - 407 2014-02-01 https://escholarship.org/uc/item/7vj552jp unknown eScholarship, University of California qt7vj552jp https://escholarship.org/uc/item/7vj552jp public Ecology and evolution, vol 4, iss 4 Experimental introduction fluctuating resource hypothesis freshwater ponds metacommunity nutrient addition resource availability resources salinity Ecology Evolutionary Biology article 2014 ftcdlib 2020-03-13T23:54:34Z Theory suggests that communities should be more open to the establishment of regional species following disturbance because disturbance may make more resources available to dispersers. However, after an initial period of high invasibility, growth of the resident community may lead to the monopolization of local resources and decreased probability of successful colonist establishment. During press disturbances (i.e., directional environmental change), it remains unclear what effect regional dispersal will have on local community structure if the establishment of later arriving species is affected by early arriving species (i.e., if priority effects are important). To determine the relationship between time-since-disturbance and invasibility, we conducted a fully factorial field mesocosm experiment that exposed tundra zooplankton communities to two emerging stressors - nutrient and salt addition, and manipulated the arrival timing of regional dispersers. Our results demonstrate that invasibility decreases with increasing time-since-disturbance as abundance (nutrient treatments) or species richness (salt treatments) increases in the resident community. Results suggest that the relative timing of dispersal and environmental change will modify the importance of priority effects in determining species composition after a press disturbance. Article in Journal/Newspaper Tundra University of California: eScholarship |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Experimental introduction fluctuating resource hypothesis freshwater ponds metacommunity nutrient addition resource availability resources salinity Ecology Evolutionary Biology |
spellingShingle |
Experimental introduction fluctuating resource hypothesis freshwater ponds metacommunity nutrient addition resource availability resources salinity Ecology Evolutionary Biology Symons, Celia C Arnott, Shelley E Timing is everything: priority effects alter community invasibility after disturbance. |
topic_facet |
Experimental introduction fluctuating resource hypothesis freshwater ponds metacommunity nutrient addition resource availability resources salinity Ecology Evolutionary Biology |
description |
Theory suggests that communities should be more open to the establishment of regional species following disturbance because disturbance may make more resources available to dispersers. However, after an initial period of high invasibility, growth of the resident community may lead to the monopolization of local resources and decreased probability of successful colonist establishment. During press disturbances (i.e., directional environmental change), it remains unclear what effect regional dispersal will have on local community structure if the establishment of later arriving species is affected by early arriving species (i.e., if priority effects are important). To determine the relationship between time-since-disturbance and invasibility, we conducted a fully factorial field mesocosm experiment that exposed tundra zooplankton communities to two emerging stressors - nutrient and salt addition, and manipulated the arrival timing of regional dispersers. Our results demonstrate that invasibility decreases with increasing time-since-disturbance as abundance (nutrient treatments) or species richness (salt treatments) increases in the resident community. Results suggest that the relative timing of dispersal and environmental change will modify the importance of priority effects in determining species composition after a press disturbance. |
format |
Article in Journal/Newspaper |
author |
Symons, Celia C Arnott, Shelley E |
author_facet |
Symons, Celia C Arnott, Shelley E |
author_sort |
Symons, Celia C |
title |
Timing is everything: priority effects alter community invasibility after disturbance. |
title_short |
Timing is everything: priority effects alter community invasibility after disturbance. |
title_full |
Timing is everything: priority effects alter community invasibility after disturbance. |
title_fullStr |
Timing is everything: priority effects alter community invasibility after disturbance. |
title_full_unstemmed |
Timing is everything: priority effects alter community invasibility after disturbance. |
title_sort |
timing is everything: priority effects alter community invasibility after disturbance. |
publisher |
eScholarship, University of California |
publishDate |
2014 |
url |
https://escholarship.org/uc/item/7vj552jp |
op_coverage |
397 - 407 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Ecology and evolution, vol 4, iss 4 |
op_relation |
qt7vj552jp https://escholarship.org/uc/item/7vj552jp |
op_rights |
public |
_version_ |
1766229786565279744 |