Crab regulation of cross-ecosystem resource transfer by marine foraging fire ants
Permeability of boundaries in biological systems is regulated by biotic and/or abiotic factors. Despite this knowledge, the role of biotic factors in regulating resource transfer across ecosystem boundaries has received little study. Additionally, little is known about how cross-ecosystem resource t...
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todo:paper_00298549_v166_n4_p1111_Garcia2023-10-03T14:39:42Z Crab regulation of cross-ecosystem resource transfer by marine foraging fire ants Garcia, E.A. Bertness, M.D. Alberti, J. Silliman, B.R. Boundary permeability Cross-ecosystem foraging Ecosystem engineer Land-water interface Resource transfer carbon nitrogen ant crab diet ecosystem engineering environmental factor experimental study foraging behavior intertidal community land-sea interaction marine resource permeability polychaete population density top-down control animal ant aquatic species Argentina article Brachyura ecosystem feeding behavior Polychaeta population density Animals Ants Aquatic Organisms Argentina Brachyura Carbon Isotopes Ecosystem Feeding Behavior Nitrogen Isotopes Polychaeta Population Density Decapoda (Crustacea) Formicidae Polychaeta Solenopsis geminata Solenopsis richteri Permeability of boundaries in biological systems is regulated by biotic and/or abiotic factors. Despite this knowledge, the role of biotic factors in regulating resource transfer across ecosystem boundaries has received little study. Additionally, little is known about how cross-ecosystem resource transfer affects source populations. We used experiments, observations and stable isotopes, to evaluate: (1) the proportion of intertidal-foraging black fire ant (Solenopsis richteri) diet derived from marine sources, (2) how black fire ant cross-ecosystem resource transfer is altered by the dominant bioengineer in the intertidal, a burrowing crab (Neohelice granulata), (3) the top-down impact of these terrestrial ants on a marine resource, and (4) the effect of marine resources on recipient black fire ants. We found that more than 85% of the black fire ant diet is derived from marine sources, the number of intertidal foraging ants doubles in the absence of crab burrows, and that ants cause a 50% reduction in intertidal polychaetes. Also, ant mound density is three times greater adjacent to marine systems. This study reveals that cross-ecosystem foraging terrestrial ants can clearly have strong impacts on marine resources. Furthermore, ecosystem engineers that modify and occupy habitat in these ecosystem boundaries can strongly regulate the degree of cross-ecosystem resource transfer and resultant top down impacts. © 2011 Springer-Verlag. JOUR English info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00298549_v166_n4_p1111_Garcia |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
language |
English |
orig_language_str_mv |
English |
topic |
Boundary permeability Cross-ecosystem foraging Ecosystem engineer Land-water interface Resource transfer carbon nitrogen ant crab diet ecosystem engineering environmental factor experimental study foraging behavior intertidal community land-sea interaction marine resource permeability polychaete population density top-down control animal ant aquatic species Argentina article Brachyura ecosystem feeding behavior Polychaeta population density Animals Ants Aquatic Organisms Argentina Brachyura Carbon Isotopes Ecosystem Feeding Behavior Nitrogen Isotopes Polychaeta Population Density Decapoda (Crustacea) Formicidae Polychaeta Solenopsis geminata Solenopsis richteri |
spellingShingle |
Boundary permeability Cross-ecosystem foraging Ecosystem engineer Land-water interface Resource transfer carbon nitrogen ant crab diet ecosystem engineering environmental factor experimental study foraging behavior intertidal community land-sea interaction marine resource permeability polychaete population density top-down control animal ant aquatic species Argentina article Brachyura ecosystem feeding behavior Polychaeta population density Animals Ants Aquatic Organisms Argentina Brachyura Carbon Isotopes Ecosystem Feeding Behavior Nitrogen Isotopes Polychaeta Population Density Decapoda (Crustacea) Formicidae Polychaeta Solenopsis geminata Solenopsis richteri Garcia, E.A. Bertness, M.D. Alberti, J. Silliman, B.R. Crab regulation of cross-ecosystem resource transfer by marine foraging fire ants |
topic_facet |
Boundary permeability Cross-ecosystem foraging Ecosystem engineer Land-water interface Resource transfer carbon nitrogen ant crab diet ecosystem engineering environmental factor experimental study foraging behavior intertidal community land-sea interaction marine resource permeability polychaete population density top-down control animal ant aquatic species Argentina article Brachyura ecosystem feeding behavior Polychaeta population density Animals Ants Aquatic Organisms Argentina Brachyura Carbon Isotopes Ecosystem Feeding Behavior Nitrogen Isotopes Polychaeta Population Density Decapoda (Crustacea) Formicidae Polychaeta Solenopsis geminata Solenopsis richteri |
description |
Permeability of boundaries in biological systems is regulated by biotic and/or abiotic factors. Despite this knowledge, the role of biotic factors in regulating resource transfer across ecosystem boundaries has received little study. Additionally, little is known about how cross-ecosystem resource transfer affects source populations. We used experiments, observations and stable isotopes, to evaluate: (1) the proportion of intertidal-foraging black fire ant (Solenopsis richteri) diet derived from marine sources, (2) how black fire ant cross-ecosystem resource transfer is altered by the dominant bioengineer in the intertidal, a burrowing crab (Neohelice granulata), (3) the top-down impact of these terrestrial ants on a marine resource, and (4) the effect of marine resources on recipient black fire ants. We found that more than 85% of the black fire ant diet is derived from marine sources, the number of intertidal foraging ants doubles in the absence of crab burrows, and that ants cause a 50% reduction in intertidal polychaetes. Also, ant mound density is three times greater adjacent to marine systems. This study reveals that cross-ecosystem foraging terrestrial ants can clearly have strong impacts on marine resources. Furthermore, ecosystem engineers that modify and occupy habitat in these ecosystem boundaries can strongly regulate the degree of cross-ecosystem resource transfer and resultant top down impacts. © 2011 Springer-Verlag. |
format |
JOUR |
author |
Garcia, E.A. Bertness, M.D. Alberti, J. Silliman, B.R. |
author_facet |
Garcia, E.A. Bertness, M.D. Alberti, J. Silliman, B.R. |
author_sort |
Garcia, E.A. |
title |
Crab regulation of cross-ecosystem resource transfer by marine foraging fire ants |
title_short |
Crab regulation of cross-ecosystem resource transfer by marine foraging fire ants |
title_full |
Crab regulation of cross-ecosystem resource transfer by marine foraging fire ants |
title_fullStr |
Crab regulation of cross-ecosystem resource transfer by marine foraging fire ants |
title_full_unstemmed |
Crab regulation of cross-ecosystem resource transfer by marine foraging fire ants |
title_sort |
crab regulation of cross-ecosystem resource transfer by marine foraging fire ants |
url |
http://hdl.handle.net/20.500.12110/paper_00298549_v166_n4_p1111_Garcia |
work_keys_str_mv |
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1782029682092277760 |