Island Reef Connections

Research by this team has shown how seabird guano can enhance coral reef productivity, biodiversity, and how they work. The team are conducting this research in the Chagos Archipelago, Seychelles, and French Polynesia, incorporating into their study sites, islands with and without rats, and those with ongoing rat eradication programmes. The research will help inform tropical island conservation and restoration efforts all around the world.
Lead investigator: Prof. Nick Graham (Lancaster University).

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1 to 10 of 13 Results

Seabird nutrient subsidies enrich mangrove ecosystems and are exported to nearby coastal habitats May 31, 2025 Appoo, Jennifer, 2025, "Seabird nutrient subsidies enrich mangrove ecosystems and are exported to nearby coastal habitats", https://doi.org/10.5061/DRYAD.0RXWDBS79, Dryad In this study, we investigate how mangrove ecosystems respond to nutrient subsidies supplied by nesting seabirds. We first quantify seabird guano nutrient input and seabird guano nitrogen isotopes. We then assess the influence of seabirds on mangroves by comparing nitrogen, phosphorus, nutrient ratios and resoprtion efficiency in mangrove leaves sa... The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.
Seascape configuration determines spatial patterns of seabird-vectored nutrient enrichment to coral reefs (dataset) Apr 25, 2025 Stuart, Courtney E.; Pittman, Simon J.; Stamoulis, Kostantinos A.; Benkwitt, Cassandra E.; Epstein, Hannah E.; Graham, Nicholas A.J.; Smith, Andrew C.; Lacey, Jack H.; Bistolas, Kalia S.I.; DeVore, Jayna L.; Ducatez, Simon; Wedding, Lisa M., 2025, "Seascape configuration determines spatial patterns of seabird-vectored nutrient enrichment to coral reefs (dataset)", https://doi.org/10.7910/DVN/5NHHEY, Harvard Dataverse, V1 Pelagic-feeding seabirds deliver nutrient subsidies that enhance the productivity, biodiversity, and resilience of terrestrial and marine ecosystems, particularly in nutrient-poor tropical environments. However, the biogeophysical variables governing the fluxes of these nutrients within and among interconnected ecosystems remain poorly understood....
Data and code supporting the publication "Seabirds boost coral reef resilience" Mar 31, 2025 cbenkwitt, 2025, "Data and code supporting the publication "Seabirds boost coral reef resilience"", https://doi.org/10.5281/ZENODO.8226433, Zenodo Data and code for paper on the effect of seabird versus rat presence on coral growth, recruitment, and recovery dynamics after a mass bleaching event. Paper citation and doi: Benkwitt, C.E., D’Angelo, C., Dunn, R.E., Gunn, R.L., Healing, S., Mardones, M.L., Wiedenmann, J., Wilson, S.K. and Graham, N.A.J. 2023. Seabirds boost coral reef resilience.... The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.
Stable Isotope Data from Coral Reef Taxa in the Chagos Archipelago Mar 19, 2025 Dunn, Ruth; Benkwitt, Cassandra; Graham, Nicholas, 2025, "Stable Isotope Data from Coral Reef Taxa in the Chagos Archipelago", https://doi.org/10.7910/DVN/EARGJ3, Harvard Dataverse, V1, UNF:6:CfD0LM/v9/JUenMZdORrzw== [fileUNF] Data on the carbon (ð13C) stable isotopes, nitrogen (ð15N) stable isotopes, nutrient levels (percent nitrogen, %N), and nutrient ratios (carbon-to-nitrogen ratios, C:N) of taxa collected from two depths within lagoonal reefs and from more exposed seaward reefs within the Chagos Archipelago, including from reefs surrounding islands where high densit...
Data supporting the publication: Quantifying reef-derived sediment generation: Introducing the SedBudget methodology to support tropical coastline and island vulnerability studies. Mar 14, 2025 Perry, Chris, 2025, "Data supporting the publication: Quantifying reef-derived sediment generation: Introducing the SedBudget methodology to support tropical coastline and island vulnerability studies.", https://doi.org/10.7910/DVN/7G7TQ3, Harvard Dataverse, V1 Sediment production rate, sediment composition and sediment grain size data from 4 exemplar sites used in this study
Coral restoration can drive rapid reef carbonate budget recovery (dataset) Mar 12, 2024 Lange, I; Razak, TB; Perry, CT; Maulana, PB; Prasetya, ME; Irwan; Lamont, TAC, 2024, "Coral restoration can drive rapid reef carbonate budget recovery (dataset)", https://doi.org/10.24378/EXE.5065 Restoration is increasingly seen as a necessary tool to reverse ecological decline across terrestrial and marine ecosystems. Considering the unprecedented loss of coral cover and associated reef ecosystem services, active coral restoration is gaining traction in local management strategies and has recently seen major increases in scale. However, th... The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.
Dataset supporting the publication "Reef-building corals farm and feed on their photosynthetic symbionts". Aug 30, 2023 D'angelo, Maria; Mardones Velozo, Maria; Wiedenmann, Joerg; Moore, Shona; Benkwitt, Cassandra (Casey); Graham, Nicholas; Hambach, Bastian; Wilson, Paul; Vanstone, James, 2024, "Dataset supporting the publication "Reef-building corals farm and feed on their photosynthetic symbionts".", https://doi.org/10.5258/SOTON/D2696 Dataset supporting the publication by Wiedenmann, J. et al. "Reef-building corals farm and feed on their photosynthetic symbionts". Nature (2023). https://doi.org/10.1038/s41586-023-06442-5 This dataset contains all the raw data used in the paper cited above, organised within five worksheets in an excel file: Wiedenmann et al_Repository.xlsx Worksh... The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.
Terrestrial invasive species alter marine vertebrate behaviour Jan 6, 2023 Gunn, Rachel; Benkwitt, Cassandra E.; Graham, Nicholas; Hartley, Ian; Algar, Adam; Keith, Sally, 2024, "Terrestrial invasive species alter marine vertebrate behaviour", https://doi.org/10.6084/M9.FIGSHARE.21089770.V1 Data, meta data and code for 'Terrestrial invasive species alter marine vertebrate behaviour' The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.
Structure-from-motion photogrammetry demonstrates variability in coral growth within colonies and across habitats (dataset) Dec 1, 2022 Lange, I; Molina-Hernández, A; Medellín-Maldonado, F; Perry, CTP; Álvarez-Filip, L, 2024, "Structure-from-motion photogrammetry demonstrates variability in coral growth within colonies and across habitats (dataset)", https://doi.org/10.24378/EXE.4285 Coral growth is an important metric of coral health and underpins reef-scale functional attributes such as structural complexity and calcium carbonate production. There persists, however, a paucity of growth data for most reef-building regions, especially for coral species whose skeletal architecture prevents the use of traditional methods such as... The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.
Recovery trends of reef carbonate budgets at remote coral atolls six years post-bleaching (dataset) Mar 25, 2022 Lange, I; Perry, C; Stuhr, M, 2024, "Recovery trends of reef carbonate budgets at remote coral atolls six years post-bleaching (dataset)", https://doi.org/10.24378/EXE.3863 Coral bleaching events and resultant changes in benthic community composition and population size structure can diminish the important geo-ecological functions reefs provide, including habitat provision and carbonate production to support reef accretion. Net reef carbonate budgets, the balance between carbonate production and erosion processes, are... The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.

Seabird nutrient subsidies enrich mangrove ecosystems and are exported to nearby coastal habitats

May 31, 2025

Appoo, Jennifer, 2025, "Seabird nutrient subsidies enrich mangrove ecosystems and are exported to nearby coastal habitats", https://doi.org/10.5061/DRYAD.0RXWDBS79, Dryad

In this study, we investigate how mangrove ecosystems respond to nutrient subsidies supplied by nesting seabirds. We first quantify seabird guano nutrient input and seabird guano nitrogen isotopes. We then assess the influence of seabirds on mangroves by comparing nitrogen, phosphorus, nutrient ratios and resoprtion efficiency in mangrove leaves sa...

The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.

Seascape configuration determines spatial patterns of seabird-vectored nutrient enrichment to coral reefs (dataset)

Apr 25, 2025

Stuart, Courtney E.; Pittman, Simon J.; Stamoulis, Kostantinos A.; Benkwitt, Cassandra E.; Epstein, Hannah E.; Graham, Nicholas A.J.; Smith, Andrew C.; Lacey, Jack H.; Bistolas, Kalia S.I.; DeVore, Jayna L.; Ducatez, Simon; Wedding, Lisa M., 2025, "Seascape configuration determines spatial patterns of seabird-vectored nutrient enrichment to coral reefs (dataset)", https://doi.org/10.7910/DVN/5NHHEY, Harvard Dataverse, V1

Pelagic-feeding seabirds deliver nutrient subsidies that enhance the productivity, biodiversity, and resilience of terrestrial and marine ecosystems, particularly in nutrient-poor tropical environments. However, the biogeophysical variables governing the fluxes of these nutrients within and among interconnected ecosystems remain poorly understood....

Data and code supporting the publication "Seabirds boost coral reef resilience"

Mar 31, 2025

cbenkwitt, 2025, "Data and code supporting the publication "Seabirds boost coral reef resilience"", https://doi.org/10.5281/ZENODO.8226433, Zenodo

Data and code for paper on the effect of seabird versus rat presence on coral growth, recruitment, and recovery dynamics after a mass bleaching event. Paper citation and doi: Benkwitt, C.E., D’Angelo, C., Dunn, R.E., Gunn, R.L., Healing, S., Mardones, M.L., Wiedenmann, J., Wilson, S.K. and Graham, N.A.J. 2023. Seabirds boost coral reef resilience....

The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.

Stable Isotope Data from Coral Reef Taxa in the Chagos Archipelago

Mar 19, 2025

Dunn, Ruth; Benkwitt, Cassandra; Graham, Nicholas, 2025, "Stable Isotope Data from Coral Reef Taxa in the Chagos Archipelago", https://doi.org/10.7910/DVN/EARGJ3, Harvard Dataverse, V1, UNF:6:CfD0LM/v9/JUenMZdORrzw== [fileUNF]

Data on the carbon (ð13C) stable isotopes, nitrogen (ð15N) stable isotopes, nutrient levels (percent nitrogen, %N), and nutrient ratios (carbon-to-nitrogen ratios, C:N) of taxa collected from two depths within lagoonal reefs and from more exposed seaward reefs within the Chagos Archipelago, including from reefs surrounding islands where high densit...

Data supporting the publication: Quantifying reef-derived sediment generation: Introducing the SedBudget methodology to support tropical coastline and island vulnerability studies.

Mar 14, 2025

Perry, Chris, 2025, "Data supporting the publication: Quantifying reef-derived sediment generation: Introducing the SedBudget methodology to support tropical coastline and island vulnerability studies.", https://doi.org/10.7910/DVN/7G7TQ3, Harvard Dataverse, V1

Sediment production rate, sediment composition and sediment grain size data from 4 exemplar sites used in this study

Coral restoration can drive rapid reef carbonate budget recovery (dataset)

Mar 12, 2024

Lange, I; Razak, TB; Perry, CT; Maulana, PB; Prasetya, ME; Irwan; Lamont, TAC, 2024, "Coral restoration can drive rapid reef carbonate budget recovery (dataset)", https://doi.org/10.24378/EXE.5065

Restoration is increasingly seen as a necessary tool to reverse ecological decline across terrestrial and marine ecosystems. Considering the unprecedented loss of coral cover and associated reef ecosystem services, active coral restoration is gaining traction in local management strategies and has recently seen major increases in scale. However, th...

The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.

Dataset supporting the publication "Reef-building corals farm and feed on their photosynthetic symbionts".

Aug 30, 2023

D'angelo, Maria; Mardones Velozo, Maria; Wiedenmann, Joerg; Moore, Shona; Benkwitt, Cassandra (Casey); Graham, Nicholas; Hambach, Bastian; Wilson, Paul; Vanstone, James, 2024, "Dataset supporting the publication "Reef-building corals farm and feed on their photosynthetic symbionts".", https://doi.org/10.5258/SOTON/D2696

Dataset supporting the publication by Wiedenmann, J. et al. "Reef-building corals farm and feed on their photosynthetic symbionts". Nature (2023). https://doi.org/10.1038/s41586-023-06442-5 This dataset contains all the raw data used in the paper cited above, organised within five worksheets in an excel file: Wiedenmann et al_Repository.xlsx Worksh...

The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.

Terrestrial invasive species alter marine vertebrate behaviour

Jan 6, 2023

Gunn, Rachel; Benkwitt, Cassandra E.; Graham, Nicholas; Hartley, Ian; Algar, Adam; Keith, Sally, 2024, "Terrestrial invasive species alter marine vertebrate behaviour", https://doi.org/10.6084/M9.FIGSHARE.21089770.V1

Data, meta data and code for 'Terrestrial invasive species alter marine vertebrate behaviour'

The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.

Structure-from-motion photogrammetry demonstrates variability in coral growth within colonies and across habitats (dataset)

Dec 1, 2022

Lange, I; Molina-Hernández, A; Medellín-Maldonado, F; Perry, CTP; Álvarez-Filip, L, 2024, "Structure-from-motion photogrammetry demonstrates variability in coral growth within colonies and across habitats (dataset)", https://doi.org/10.24378/EXE.4285

Coral growth is an important metric of coral health and underpins reef-scale functional attributes such as structural complexity and calcium carbonate production. There persists, however, a paucity of growth data for most reef-building regions, especially for coral species whose skeletal architecture prevents the use of traditional methods such as...

The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.

Recovery trends of reef carbonate budgets at remote coral atolls six years post-bleaching (dataset)

Mar 25, 2022

Lange, I; Perry, C; Stuhr, M, 2024, "Recovery trends of reef carbonate budgets at remote coral atolls six years post-bleaching (dataset)", https://doi.org/10.24378/EXE.3863

Coral bleaching events and resultant changes in benthic community composition and population size structure can diminish the important geo-ecological functions reefs provide, including habitat provision and carbonate production to support reef accretion. Net reef carbonate budgets, the balance between carbonate production and erosion processes, are...

The metadata for the Dataset was harvested from DataCite. Clicking the dataset link will take you directly to the original archival location, as registered with DataCite.

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