Size and isotopic ratios of macroinvertebrates in mangroves with and without seabirds

This dataset is used to investigate the trophic-response of mangrove
invertebrate communities to nutrient subsidies supplied by seabird
populations. It provides nitrogen (δ15N) and carbon (δ13C) isotopic
composition of seabird guano, basal food sources (sediment, mangrove
leaves, epiphytic macroalgae) and macroinvertebrate consumers (littornid
gastropod, sesarmid crab, portunid crabs), as well as sizes of consumers,
from mangroves with and without nesting seabirds. The data is used to
determine the impacts of seabird-derived nutrients on mangrove
macroinvertebrate sizes and resource contributions.