A5003547642- Isotope Analysis in Ecology
- Fish Ecology and Management Studies
- Marine and coastal ecosystems
- Marine and fisheries research
- Aquatic Invertebrate Ecology and Behavior
- Freshwater macroinvertebrate diversity and ecology
- Marine Bivalve and Aquaculture Studies
- Marine Biology and Ecology Research
- Plant and animal studies
- Marine and coastal plant biology
- Marine animal studies overview
- Coastal wetland ecosystem dynamics
- Aquatic Ecosystems and Phytoplankton Dynamics
- Ecology and Vegetation Dynamics Studies
- Mercury impact and mitigation studies
- Environmental Toxicology and Ecotoxicology
- Recycling and Waste Management Techniques
- Microplastics and Plastic Pollution
- Geology and Paleoclimatology Research
- Microbial Community Ecology and Physiology
- Coral and Marine Ecosystems Studies
- Marine Ecology and Invasive Species
- Animal Ecology and Behavior Studies
- Ruminant Nutrition and Digestive Physiology
- Climate change and permafrost
Sapienza University of Rome
2016-2025
CoNISMa
2016-2025
University of Molise
2008
Innovation Engineering (Italy)
1995
Abstract Changes in species’ trophic niches due to habitat degradation can affect intra‐ and interspecific competition, with implications for biodiversity persistence. Difficulties of measuring interactions the field limit our comprehension competition outcomes along disturbance gradients. Thus, information on how destabilize food webs is scarce, hindering predictions regarding responses multispecies systems environmental changes. Seagrass ecosystems are undergoing degradation. We address...
Abstract In the Ross Sea, biodiversity organisation is strongly influenced by sea-ice cover, which characterised marked spatio-temporal variations. Expected changes in seasonal dynamics will be reflected food web architecture, providing a unique opportunity to study effects of climate change. Based on individual stable isotope analyses and high taxonomic resolution sampled specimens, we described benthic webs contrasting conditions persistence (early vs. late break up) medium-depth waters...
Abstract Measuring ecological and economic impacts of invasive species is necessary for managing invaded food webs. Based on abundance, biomass diet data autochthonous allochthonous fish species, we proposed a novel approach to quantifying trophic interaction strengths in terms number individuals that each subtract the others web. This allowed estimate loss associated impact an commercial stocks, as well resilience webs further perturbations. As case study, measured bass Micropterus...
Abstract Antarctic biodiversity is affected by seasonal sea-ice dynamics driving basal resource availability. To (1) determine the role of intraspecific dietary variability in structuring benthic food webs sustaining biodiversity, and (2) understand how position topologically central species vary with cover, single individuals’ diets were studied isotopic analysis before breakup afterwards. Isotopic trophospecies (or Trophic Units) investigated reconstructed using Bayesian Mixing Models. As...
In the study of food webs, existence and explanation recurring patterns, such as scale invariance linkage density, predator–prey ratios mean chain length, constitute long-standing issues. Our focused on litter-associated webs explored influence detritivore predator niche width (as δ13C range) web topological structure. To compare patterns within between aquatic terrestrial ecosystems take account intra-habitat variability, we constructed 42 macroinvertebrate patch-scale in four different...
We tested the capacity of Ulva lactuca to mark N sources across large marine areas by measuring variation in its δ(15)N at several sites Gulf Gaeta. Comparisons were made with macroalga Cystoseira amentacea. Variation values was assessed also coastal waters off Circeo Natural Park, where U. and C. amentacea harvested, as these are barely influenced human activities used reference site. A small fragment from each frond preserved before deployment order characterize initial isotopic values....
Abstract Microplastic pollution is one of the greatest environmental concerns for contemporary times and future. In last years, number publications about microplastic contamination has increased rapidly list daily updated. However, lack standard analytical approaches might generate data inconsistencies, reducing comparability among different studies. The present study investigates potential two image processing tools (namely shapeR package R ImageJ 1.52v) in providing an accurate...
Summary 1. Natural and anthropogenic disturbances are influential factors in river ecosystems. Lowland rivers that cross urbanised areas experience direct disturbance due to urbanisation, affecting suitability for many vertebrate invertebrate species with important implications ecosystem functioning stability. In addition, lowland potentially subjected major flood events, whose effects may be exacerbated by urbanisation the basin. A greater understanding of combined is needed if we preserve...
Global biodiversity is affected by human pressure and climate change, the present rate of loss probably higher than ever before. Community composition also changing, interspecific interactions are under severe pressure. The extinction one species within a food web can result in further secondary extinctions, due to bottom‐up effects that be even more intense less predictable direct disturbance, undermining our capacity for ecosystem management conservation. Here we investigated metric...
Climate change is expected to affect resource-consumer interactions underlying stability in polar food webs. Polar benthic organisms have adapted the marked seasonality characterising their habitats by concentrating foraging and reproductive activity summer months, when inputs from sympagic pelagic producers increase. While this enables persistence of biodiverse webs, mechanisms changes resource use nutrient transfer are poorly understood. Thus, our understanding how temporal spatial...
Abstract Non‐native freshwater fish species can have adverse ecological impacts on native populations. However, the mechanisms determining success or otherwise of their invasion and role in invaded communities remain largely unknown. This is particularly true for Mediterranean region, where endemic characterised by restricted natural ranges may be at high risk extinction. The largemouth bass ( Micropterus salmoides ) to North America but invasive Italian Peninsula. aim this study was explore...
Determining food web architecture and its seasonal cycles is a precondition for making predictions about Antarctic marine biodiversity under varying climate change scenarios. However, few scientific data concerning structure, the species playing key roles in stability community responses to changes sea-ice dynamics are available. Based on C N stable isotope analysis, we describe benthic webs diet of occurring shallow waters (Tethys Bay, Ross Sea) before after break-up. We hypothesized that...
Biological invasions in fresh waters cause biodiversity loss and impairment of ecosystem functioning. Many freshwater invasive species are fish, including the largemouth bass Micropterus salmoides, which is considered one 100 worst world. Fast individual growth rates, high dispersal ability, ecological tolerance, trophic plasticity among characteristics contributing to its success. The negative impact M. salmoides on littoral fish communities believed be mitigated by habitat structural...
Summary 1. Interest in the effects of biodiversity on ecosystem processes is increasing, stimulated by global species decline. Different hypotheses about biodiversity‐ecosystem functioning (BEF) relationship have been put forward and various underlying mechanisms proposed for different ecosystems. 2. We investigated BEF relationships role interactions laboratory experiments focussing aquatic decomposition. Species richness at three trophic levels (leaf detritus, detritus‐colonising fungi...