Publications by authors named "Carla Olmo"
Prior research on metacommunities has largely focused on snapshot surveys, often overlooking temporal dynamics. In this study, our aim was to compare the insights obtained from metacommunity analyses based on a spatial approach repeated over time, with a spatio-temporal approach that consolidates all data into a single model. We empirically assessed the influence of temporal variation in the environment and spatial connectivity on the structure of metacommunities in tropical and Mediterranean temporary ponds.
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- The metacommunity concept explains how organisms are distributed based on environmental filters, dispersal, and drift, yet there are few studies using a multitaxon approach across different biogeographical regions.
- This study compared tropical and temperate pond metacommunities in Costa Rica and Spain, hypothesizing that temperate ponds are more influenced by environmental and spatial processes due to greater isolation and environmental gradients.
- Results showed that environmental factors had a stronger impact in Mediterranean ponds, while spatial factors were more significant in tropical ponds, with variations among organism groups particularly influenced by their dispersal abilities.
Understanding the influence of environmental and spatial factors on the structure of aquatic communities remains a major challenge in community ecology. This study aims to identify main drivers of rotifer abundance and diversity in ponds embedded in an intensive agricultural landscape in Northeast Germany. We studied 42 ponds of glacial origin (kettle holes) covering a wide range of environmental parameters.
View Article and Find Full Text PDFTracking environmental changes in restored Mediterranean dune slacks.
Sci Total Environ
November 2019
Restoration is an ecological tool that aims to recover the prior conditions and functioning of a degraded habitat. Three restoration projects targeted a dune slack system in the Eastern Iberian Peninsula and created a mosaic of ponds restored over three different periods: 1998, 2003 and 2007, the latter coinciding with the start of our study. Restoration works consisted of digging out the pond basin to its original morphometry.
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- Follow-up research examined the impact of delayed study start and low patient accrual rates in 31 EMA-requested registry studies, analyzing data from June 2015 to November 2017.
- Results showed improved outcomes, with 32.2% of studies finalized and median patient accrual rates increasing—24% for ongoing studies and 101% for finalized studies.
- Despite these improvements, further efforts are needed to enhance registry data use for regulatory purposes, which is part of the ongoing EMA registry initiative.
The toxicity of Bacillus thuringiensis var. israelensis on zooplanktonic microcrustaceans was evaluated using individuals collected in coastal wetlands where this larvicide has been used for mosquito control over the last decades. We tested five zooplankton species that coexist with mosquito larvae: two copepods (both nauplii and adults of Tropocyclops prasinus and Acantocyclops americanus), and three cladocerans (Ceriodaphnia reticulata, Chydorus sphaericus, and Daphnia cf.
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