Seabird nutrient subsidies benefit non-nitrogen fixing trees and alter species composition in South American coastal dry forests.

Marine-derived nutrients can increase primary productivity and change species composition of terrestrial plant communities in coastal and riverine ecosystems. We hypothesized that sea nutrient subsidies have a positive effect on nitrogen assimilation and seedling survival of non-nitrogen fixing spec...

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Autores principales:	Gilles Havik, Alessandro Catenazzi, Milena Holmgren
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3742e84369f148a8ba9a2d9ca33ad170
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spelling	oai:doaj.org-article:3742e84369f148a8ba9a2d9ca33ad1702021-11-18T08:36:26ZSeabird nutrient subsidies benefit non-nitrogen fixing trees and alter species composition in South American coastal dry forests.1932-620310.1371/journal.pone.0086381https://doaj.org/article/3742e84369f148a8ba9a2d9ca33ad1702014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24466065/?tool=EBIhttps://doaj.org/toc/1932-6203Marine-derived nutrients can increase primary productivity and change species composition of terrestrial plant communities in coastal and riverine ecosystems. We hypothesized that sea nutrient subsidies have a positive effect on nitrogen assimilation and seedling survival of non-nitrogen fixing species, increasing the relative abundance of non-nitrogen fixing species close to seashore. Moreover, we proposed that herbivores can alter the effects of nutrient supplementation by preferentially feeding on high nutrient plants. We studied the effects of nutrient fertilization by seabird guano on tree recruitment and how these effects can be modulated by herbivorous lizards in the coastal dry forests of northwestern Peru. We combined field studies, experiments and stable isotope analysis to study the response of the two most common tree species in these forests, the nitrogen-fixing Prosopis pallida and the non-nitrogen-fixing Capparis scabrida. We did not find differences in herbivore pressure along the sea-inland gradient. We found that the non-nitrogen fixing C. scabrida assimilates marine-derived nitrogen and is more abundant than P. pallida closer to guano-rich soil. We conclude that the input of marine-derived nitrogen through guano deposited by seabirds feeding in the Pacific Ocean affects the two dominant tree species of the coastal dry forests of northern Peru in contrasting ways. The non-nitrogen fixing species, C. scabrida may benefit from sea nutrient subsidies by incorporating guano-derived nitrogen into its foliar tissues, whereas P. pallida, capable of atmospheric fixation, does not.Gilles HavikAlessandro CatenazziMilena HolmgrenPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 1, p e86381 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gilles Havik Alessandro Catenazzi Milena Holmgren Seabird nutrient subsidies benefit non-nitrogen fixing trees and alter species composition in South American coastal dry forests.
description	Marine-derived nutrients can increase primary productivity and change species composition of terrestrial plant communities in coastal and riverine ecosystems. We hypothesized that sea nutrient subsidies have a positive effect on nitrogen assimilation and seedling survival of non-nitrogen fixing species, increasing the relative abundance of non-nitrogen fixing species close to seashore. Moreover, we proposed that herbivores can alter the effects of nutrient supplementation by preferentially feeding on high nutrient plants. We studied the effects of nutrient fertilization by seabird guano on tree recruitment and how these effects can be modulated by herbivorous lizards in the coastal dry forests of northwestern Peru. We combined field studies, experiments and stable isotope analysis to study the response of the two most common tree species in these forests, the nitrogen-fixing Prosopis pallida and the non-nitrogen-fixing Capparis scabrida. We did not find differences in herbivore pressure along the sea-inland gradient. We found that the non-nitrogen fixing C. scabrida assimilates marine-derived nitrogen and is more abundant than P. pallida closer to guano-rich soil. We conclude that the input of marine-derived nitrogen through guano deposited by seabirds feeding in the Pacific Ocean affects the two dominant tree species of the coastal dry forests of northern Peru in contrasting ways. The non-nitrogen fixing species, C. scabrida may benefit from sea nutrient subsidies by incorporating guano-derived nitrogen into its foliar tissues, whereas P. pallida, capable of atmospheric fixation, does not.
format	article
author	Gilles Havik Alessandro Catenazzi Milena Holmgren
author_facet	Gilles Havik Alessandro Catenazzi Milena Holmgren
author_sort	Gilles Havik
title	Seabird nutrient subsidies benefit non-nitrogen fixing trees and alter species composition in South American coastal dry forests.
title_short	Seabird nutrient subsidies benefit non-nitrogen fixing trees and alter species composition in South American coastal dry forests.
title_full	Seabird nutrient subsidies benefit non-nitrogen fixing trees and alter species composition in South American coastal dry forests.
title_fullStr	Seabird nutrient subsidies benefit non-nitrogen fixing trees and alter species composition in South American coastal dry forests.
title_full_unstemmed	Seabird nutrient subsidies benefit non-nitrogen fixing trees and alter species composition in South American coastal dry forests.
title_sort	seabird nutrient subsidies benefit non-nitrogen fixing trees and alter species composition in south american coastal dry forests.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/3742e84369f148a8ba9a2d9ca33ad170
work_keys_str_mv	AT gilleshavik seabirdnutrientsubsidiesbenefitnonnitrogenfixingtreesandalterspeciescompositioninsouthamericancoastaldryforests AT alessandrocatenazzi seabirdnutrientsubsidiesbenefitnonnitrogenfixingtreesandalterspeciescompositioninsouthamericancoastaldryforests AT milenaholmgren seabirdnutrientsubsidiesbenefitnonnitrogenfixingtreesandalterspeciescompositioninsouthamericancoastaldryforests
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Seabird nutrient subsidies benefit non-nitrogen fixing trees and alter species composition in South American coastal dry forests.

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