V. Calcagno

MoveR: an R package for easy processing and analysis of animal video-tracking data

MoveR provides an R package for processing and analyzing animal video-tracking data, offering tools for data import, filtering, visualization, and movement metric computation.

Taking fear back into the Marginal Value Theorem: the risk-MVT and optimal boldness

The paper introduces the risk-MVT (rMVT), a generalization of the Marginal Value Theorem that incorporates predation risk, showing how different risks affect optimal foraging strategies.

Coevolution of species colonization rates controls food-chain length in spatially structured food webs

The paper models how species colonization rates evolve in spatially structured food webs and shows that weaker competition-colonization trade-offs lead to longer food chains.

When complex movement yields simple dispersal: behavioural heterogeneity, spatial spread and parasitism in groups of micro-wasps

This study examines how behavioral dynamics and individual variability in micro-wasps influence population spread and parasitism, finding that dispersal patterns deviate from classical diffusion models.

A double-spiral maze and hi-resolution tracking pipeline to study dispersal by groups of minute insects

The paper introduces a double-spiral maze and high-resolution tracking pipeline to study dispersal in minute insects, enabling accurate measurement of dispersal metrics at relevant scales.

Non-target effects of ten essential oils on the egg parasitoid Trichogramma evanescens

This study evaluates the non-target effects of ten essential oils on the egg parasitoid Trichogramma evanescens, finding toxicity and behavioral disruption in several strains.

Up and to the light: intra- and interspecific variability of photo- and geo-tactic oviposition preferences in genus Trichogramma

This study examines photo- and geo-tactic oviposition preferences in 25 Trichogramma populations across five species, revealing significant intra- and interspecific variation and plasticity in these behaviors.

Migration pulsedness alters patterns of allele fixation and local adaptation in a mainland-island model

The paper examines how migration pulsedness affects allele fixation and local adaptation in a mainland-island model, finding it can increase or decrease gene flow depending on selection pressures.

Metacommunity dynamics and the detection of species associations in co-occurrence analyses: why patch disturbance matters

This paper shows that patch disturbance in metacommunities can create false species associations in co-occurrence analyses and suggests including patch age as a covariate to address this issue.

Landscape connectivity alters the evolution of density-dependent dispersal during pushed range expansions

The paper examines how landscape connectivity affects phenotypic evolution during range expansions, finding that high connectivity can alter density-dependent dispersal, potentially slowing or reversing the transition from pushed to pulled dynamics.

Consistent variations in personality traits and their potential for genetic improvement of biocontrol agents: Trichogramma evanescens as a case study

The paper develops a video-tracking method to phenotype personality traits in Trichogramma evanescens and finds genetic variation in activity and exploration with a trade-off between exploration and fecundity.

Shifts from pulled to pushed range expansions caused by reduction of landscape connectivity

This study shows that reducing landscape connectivity can shift range expansions from pulled to pushed dynamics in parasitoid wasps, affecting genetic diversity and expansion speed.

How community adaptation affects biodiversity-ecosystem functioning relationships

This study models how community adaptation affects biodiversity-ecosystem functioning relationships, finding that adapted communities show different patterns in productivity, stability, and invasion resistance compared to random communities.

A multi-seasonal model of plant-nematode interactions and its use to identify optimal plant resistance deployment strategies

The paper develops an epidemiological model of plant-nematode interactions to identify optimal crop rotation strategies for controlling nematodes and maximizing yield.

How optimal foragers should respond to habitat changes? On the consequences of habitat conversion.

The paper analyzes how habitat conversion affects foraging behavior and fitness under the Marginal Value Theorem, showing that initial patch exploitation patterns predict responses to habitat changes.