Contact for the resource

University of Salento

20 record(s)
 
Type of resources
title_project_dataset
Keywords
Contact for the resource
Years
status
Groups
From 1 - 10 / 20
  • This dataset provide a broad perspective and information on taxonomic and morphological (shape and size) structure of phytoplankton communities in Scottish lagoon ecosystem.

  • This dataset provide a broad perspective and information on taxonomic and morphological (shape and size) structure of phytoplankton communities in Greek lagoon ecosystem.

  • This dataset provide a broad perspective and information on taxonomic and morphological (shape and size) structure of phytoplankton communities in Australian lagoon ecosystems.

  • This dataset provide a broad perspective and information on taxonomic and morphological (shape and size) structure of phytoplankton communities in Brasilian lagoon ecosystems.

  • 1. Individual space and resource use are central issues in ecology and conservation. Recent technological advances such as automated tracking techniques are boosting ecological research in this field. However, the development of a robust method to track space and resource use is still challenging for at least one important ecosystem component: motile aquatic macroinvertebrates. The challenges are mostly related to the small body size and rapid movement of many macroinvertebrate species and to light scattering and wave signal interference in aquatic habitats. 2. We developed a video tracking method designed to reliably assess space use behaviour among individual aquatic macroinvertebrates under laboratory (microcosm) conditions. The approach involves the use of experimental apparatus integrating a near infrared backlight source, a Plexiglas multi-patch maze, multiple infrared cameras and automated video analysis. It allows detection of the position of fast-moving (~ 3 cm s-1) and translucent individuals of small size (~ 5 mm in length, ~1 mg in dry weight) on simulated resource patches distributed over an experimental microcosm (0.08 m2). 3. To illustrate the adequacy of the proposed method, we present a case study regarding the size dependency of space use behaviour in the model organism Gammarus insensibilis, focusing on individual patch selection, giving-up times and cumulative space used. 4. In the case study, primary data were collected on individual body size and individual locomotory behaviour, e.g. mean speed, acceleration and step length. Individual entrance and departure times were recorded for each simulated resource patch in the experimental maze. Individual giving-up times were found to be characterised by negative size dependency, with patch departure occurring sooner in larger individuals than smaller ones, and individual cumulative space used (treated as the overall surface area of resource patches that individuals visited) was found to scale positively with body size. 5. This approach to studying space use behaviour can deepen our understanding of species coexistence, yielding insights into mechanistic models on larger spatial scales, e.g. home range, with implications for ecological and evolutionary processes, as well as for the management and conservation of populations and ecosystems. Despite being specifically developed for aquatic macroinvertebrates, this method can also be applied to other small aquatic organisms such as juvenile fish and amphibians.

  • The dataset contains abundance and body size data of benthic macroinvertebrates collected in the LTER site Alimini (Apulia, Italy). Data refer to 26 taxa and 17895 individuals.

  • The dataset contains abundance and body size data of benthic macroinvertebrates collected in the LTER site Alimini (Apulia, Italy). Data refer to 51 taxa and 35504 individuals.

  • The dataset contains abundance and body size data of benthic macroinvertebrates collected in the LTER site Alimini (Apulia, Italy). Data refer to 54 taxa and 71213 individuals.

  • The dataset contains abundance and body size data of fish community in Acquatina lagoon. Forty-five taxa were recorded, encompassing 9 orders and 20 families, all identified at the species level except two individuals, identified respectively at the genus (Pomatoschistus) and family (Labridae) level. A total amount of 99,995 individuals were collected, and the community was dominated by the species Atherina boyeri, with 95,237 individuals found.

  • The dataset includes 360 records with 236 carbon and nitrogen isotopic signatures of Callinectes sapidus and 224 isotopic data of potential prey gathered from five countries and 12 locations between 2014 and 2019.