Linking coral river runoff proxies with climate variability, hydrology and land-use in Madagascar catchments
type: Distribution
access URL: https://hal.science/hal-00842627
format: HTML
issued: 2026-05-10T10:20:50.818225
modified: 2026-05-10T10:20:50.787166

Linking coral river runoff proxies with climate variability, hydrology and land-use in Madagascar catchments
type: Dataset
contact point: Organization
  fn: CCSD
keyword: global-climate-change
keyword: journal-articles
keyword: luminescence
keyword: sedimentation
keyword: baca
keyword: sdebeenvironmental-sciencesbiodiversity-and-ecology
keyword: coral-stress
keyword: infoeu-reposemanticsarticle
keyword: land-use-change
keyword: hydrological-modeling
keyword: river-discharge
keyword: sclerochronology
landing page: 0025-326X
description: Understanding the linkages between coastal watersheds and adjacent coral reefs is expected to lead to better coral reef conservation strategies. Our study aims to examine the main predictors of environmental proxies recorded in near shore corals and therefore how linked near shore reefs are to the catchment physical processes. To achieve these, we developed models to simulate hydrology of two watersheds in Madagascar. We examined relationships between environmental proxies derived from massive Porites spp. coral cores (spectral luminescence and barium/calcium ratios), and corresponding time-series (1950-2006) data of hydrology, climate, land use and human population growth. Results suggest regional differences in the main environmental drivers of reef sedimentation: on annual time-scales, precipitation, river flow and sediment load explained the variability in coral proxies of river discharge for the northeast region, while El Niño-Southern Oscillation (ENSO) and temperature (air and sea surface) were the best predictors in the southwest region.
issued: 2026-05-10T10:20:50.802000
language: en
modified: 2026-05-10T10:20:50.802005

test_moissonnage_selune
type: Agent