Article
Entomology
Muhammad Arshad, Muhammad Irfan Ullah, Rashad Rasool Khan, Sana Anjum, Muhammad Tahir, Adeela Shamshad, Muhammad Rizwan
Summary: The study shows that Rhynocoris marginatus has a shorter life cycle, higher reproductive rate, shorter generation time, and higher intrinsic rate of increase when feeding on Spodoptera litura. Moreover, the survival rate and fecundity are also higher when feeding on S. litura, indicating that S. litura is a more suitable prey for R. marginatus.
Article
Entomology
Preety Tomar, Neelam Thakur, Ambika Sharma
Summary: This study evaluated the control effect of entomopathogenic nematodes on the cabbage butterfly under both polyhouse and field conditions. The results showed that the nematodes had a high mortality rate and provided effective protection against the pest. This suggests that entomopathogenic nematodes can be a viable alternative to chemical-based insecticides for controlling this major insect pest.
EGYPTIAN JOURNAL OF BIOLOGICAL PEST CONTROL
(2022)
Article
Environmental Sciences
Sansfica M. Young, H. Ishiga
Summary: The study reveals significant variations in the chemical compositions of water and soil in the Polpithigama area, mainly influenced by fluoride and phosphate concentrations. High levels of fluoride and phosphate are predominantly found in the surface soils, and exhibit distinct variations at different elevations.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Entomology
Saisri Manchikatla, Kennedy Ningthoujam, Mahesh Pathak, Akoijam Ratankumar Singh
Summary: The baseline susceptibility of Pieris brassicae to Bacillus thuringiensis Cry1C and Cry2Ab toxins in Meghalaya, India was investigated. The results showed that Cry2Ab was more virulent against P. brassicae compared to Cry1C toxin.
EGYPTIAN JOURNAL OF BIOLOGICAL PEST CONTROL
(2023)
Article
Agronomy
Ming-Zhu Chen, Li-Jun Cao, Bing-Yan Li, Jin-Cui Chen, Ya-Jun Gong, Qiong Yang, Thomas L. Schmidt, Lei Yue, Jia-Ying Zhu, Hu Li, Xue-Xin Chen, Ary Anthony Hoffmann, Shu-Jun Wei
Summary: Temporal genetic differentiation among populations was low, indicating stable sources of recipient populations and migration trajectories. Southern populations were found to be sources of northern immigrants, specifically from the Sichuan cluster, while central-eastern populations originated from southern and Yunnan clusters. This study reveals seasonal migration patterns in the diamondback moth and highlights the importance of population genomic analysis in understanding insect migration.
PEST MANAGEMENT SCIENCE
(2021)
Article
Ecology
Peter Davies, John Robert Britton, Andrew D. Nunn, Jamie R. Dodd, Chris Bainger, Randolph Velterop, Jonathan D. Bolland
Summary: This study investigates the individual variation in the spawning migrations of sea lamprey, focusing on passage time and retreat behavior in fragmented rivers. The results show that the passage times vary across different barriers, potentially related to barrier characteristics and river discharge conditions. Retreat movements are also observed, and their frequency and distance vary among individuals. These behaviors are influenced by environmental conditions and the availability of alternative migration routes.
FRESHWATER BIOLOGY
(2022)
Article
Physics, Fluids & Plasmas
Ruiqi Li, Shuai Gao, Ankang Luo, Qing Yao, Bingsheng Chen, Fan Shang, Rui Jiang, H. Eugene Stanley
Summary: This study examines biking traffic patterns within cities using data from dockless bike-sharing systems, revealing relationships between biking activities and distance to city center, as well as power law distributions of biking flows between fine-grained locations. It confirms the effectiveness of the gravity model in predicting biking traffic at fine spatial resolutions, while also showing the growth patterns of distance-related parameters with increasing spatial scale. Additionally, the study investigates flow patterns of special locations that are not fully explained by the gravity model.
Article
Multidisciplinary Sciences
Miguel Gonzalez-Leonardo, Michaela Potancokova, Dilek Yildiz, Francisco Rowe
Summary: This study examines the impact of COVID-19 on international migration using Eurostat and national statistics data, as well as ARIMA time-series models. The results show that immigration declined in all countries, except Finland. Australia, Spain, and Sweden experienced the largest declines, while seven countries saw a decrease of 15% to 30% in immigration. Travel restrictions, mobility limitations, and stay-at-home requirements have a relatively strong relationship with declines in immigration.
Article
Entomology
Indra Kumar Kasi, Mohinder Singh, Kanchhi Maya Waiba, S. Monika, M. A. Waseem, D. Archie, Himanshu Gilhotra
Summary: The study demonstrated that local strains of EPNs (S. feltiae HR1 and H. bacteriophora HR2) showed significant larvicidal activity against P. brassicae, with the larval mortality increasing over time. This suggests that these EPNs could be effective biocontrol agents for managing insect pests like cabbage butterflies.
EGYPTIAN JOURNAL OF BIOLOGICAL PEST CONTROL
(2021)
Article
Plant Sciences
Esteban Alfonso, Elia Stahl, Gaetan Glauser, Etienne Bellani, Tom M. Raaymakers, Guido Van den Ackerveken, Juergen Zeier, Philippe Reymond
Summary: Plants can detect insect eggs and activate their defense mechanisms against pathogens by inducing systemic acquired resistance. Insect eggs or egg extract can trigger systemic acquired resistance against fungal and oomycete pathogens. This response is dependent on the salicylic acid pathway and the N-hydroxypipecolic acid pathway, potentially involving tryptophan-derived metabolites like camalexin.
Article
Geosciences, Multidisciplinary
Xinyuan Zhang, Nan Li
Summary: Understanding the patterns of urban human mobility is crucial for various disciplines. This study proposes a new analytical framework to assess individual mobility perturbation during extreme weather events (EWEs), and examines the individual variation and response types. The findings contribute to a comprehensive understanding of EWE-induced individual mobility perturbations.
INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION
(2022)
Article
Biology
Gozde Busra Eroglu, Merve Almula Bakirdogen, Busra Yazicilar, Okkes Atici
Summary: Plant extracts have been studied for the past thirty years to find alternatives to chemical pesticides and determine their insecticidal effects. Many plant extracts have been found to have biocidal properties, but research on discovering new plant extracts with better biocidal properties continues.
Article
Multidisciplinary Sciences
Alberto Alesina, Sebastian Hohmann, Stelios Michalopoulos, Elias Papaioannou
Summary: The people and leaders of Africa have always viewed education as a catalyst for development and freedom. This view is supported by international institutions, as education provides significant economic and non-economic benefits, especially in low-income areas. This study examines the educational progress across different religious groups in postcolonial Africa, with a focus on Christian and Muslim communities. The findings show that Christians have better educational outcomes compared to Traditionalists and Muslims, even among households with similar economic and family backgrounds. Furthermore, Muslims have lower internal mobility, residing in less urbanized and remote areas with limited infrastructure, which contributes to the educational gap between Christians and Muslims.
Article
Remote Sensing
V. Alistair Drake, Zhenhua Hao, Eric Warrant
Summary: When observing migrating insects at altitude, the ambiguity in heading direction can be resolved by observing multiple individual insects and their spread in heading directions. A vector analysis of radar-measured data can provide consistent results for all insects in a sample.
INTERNATIONAL JOURNAL OF REMOTE SENSING
(2021)
Article
Ecology
Adam F. Parlin, Samuel M. Stratton, Patrick A. Guerra
Summary: Research on lepidopteran flight behavior has been improved with a new non-invasive tethering technique, which overcomes limitations of traditional methods. By using both flight simulator and disappearance bearing techniques on the same individual, more comprehensive behavioral information can be acquired.
METHODS IN ECOLOGY AND EVOLUTION
(2021)
Article
Entomology
Nicolas Larranaga, Michel Baguette, Olivier Calvez, Delphine Legrand
Article
Biodiversity Conservation
Simon Ducatez, Rick Shine
CONSERVATION BIOLOGY
(2019)
Article
Evolutionary Biology
Libor Zavorka, Nicolas Larranaga, Magnus Loven Wallerius, Joacim Naslund, Barbara Koeck, Niklas Wengstrom, Julien Cucherousset, Jorgen I. Johnsson
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2020)
Article
Ecology
Thibaut Morel-Journel, Virginie Thuillier, Frank Pennekamp, Estelle Laurent, Delphine Legrand, Alexis S. Chaine, Nicolas Schtickzelle
FUNCTIONAL ECOLOGY
(2020)
Article
Behavioral Sciences
Laurane Winandy, Lucie Di Gesu, Marion Lemoine, Staffan Jacob, Jose Martin, Christine Ducamp, Michele Huet, Delphine Legrand, Julien Cote
Summary: The study found that lizards adjust their use of conspecific cues about predation risk based on whether the information is maternally or personally acquired. When they have no personal information about predation risk, they are more attracted to conspecifics having experienced predation cues; but when they have personally obtained information about predation risk, they are more repulsed by conspecific scent. However, the addition of maternal information about predation risk cancels out this effect, showing the importance of considering multiple sources of information for adaptive antipredator behavior.
BEHAVIORAL ECOLOGY
(2021)
Article
Genetics & Heredity
Delphine Legrand, Michel Baguette, Jerome G. Prunier, Quentin Dubois, Camille Turlure, Nicolas Schtickzelle
Summary: Understanding natural metapopulation dynamics is crucial for theoretical eco-evolutionary models. A study on a butterfly metapopulation in Belgium revealed stability in population sizes, genetic structure, and dispersal dynamics. Direct field and indirect genetic assessments of dispersal rates were found to match, suggesting long-term adaptation to dynamic environments.
Editorial Material
Genetics & Heredity
Delphine Legrand, Simon Blanchet
Article
Biology
Staffan Jacob, Delphine Legrand
Summary: Phenotypic plasticity plays a crucial role in trait variability, potentially altering the relative importance of intra- and interspecific variability along environmental gradients. This indicates that intra- and interspecific variability are highly dynamic components of ecological systems.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Review
Biochemistry & Molecular Biology
Rik Verdonck, Delphine Legrand, Staffan Jacob, Herve Philippe
Summary: Ciliates have a unique genetic system with two types of nuclei in each cell. The ecological and evolutionary significance of nuclear dimorphism in ciliates has not been well explained. We propose a novel explanation that suggests ciliate nuclear dimorphism can be considered as a tool for phenotypic plasticity by somatic selection at the level of the ciliate clone.
TRENDS IN MICROBIOLOGY
(2022)
Article
Multidisciplinary Sciences
Anthony D. Junker, Staffan Jacob, Herve Philippe, Delphine Legrand, Chad G. Pearson
Summary: This study found that different phenotypic dispersal strategies co-exist within a species, and multiple distinct and plastic morphological changes impact cilia-dependent motility during dispersal.
Article
Ecology
Hugo Cayuela, Staffan Jacob, Nicolas Schtickzelle, Rik Verdonck, Herve Philippe, Martin Laporte, Michele Huet, Louis Bernatchez, Delphine Legrand
Summary: Phenotypic plasticity refers to the ability of one genotype to produce different phenotypes in different environments, and transgenerational plasticity allows the transmission of this environmentally-induced variation across generations. In this study, using a ciliate model-species, the researchers found that phenotypic traits related to dispersal are plastic and can be inherited over at least 35 generations. The fitness costs and benefits associated with these changes can also be passed on to further generations.
Article
Ecology
Allan Raffard, Julie L. M. Campana, Delphine Legrand, Nicolas Schtickzelle, Staffan Jacob
Summary: Dispersal is a crucial process in ecological and evolutionary dynamics, but its influence on community and ecosystem productivity is often overlooked. In this study, we investigated the effects of phenotypic differences between residents and dispersers on biomass and composition in competitive communities of Tetrahymena thermophila. We found that dispersers led to lower community biomass, and this effect was consistent across different genotypes. Our findings suggest that individual dispersal strategy can have predictable effects on community productivity, highlighting the importance of considering intraspecific variability in understanding ecosystem functioning.
AMERICAN NATURALIST
(2023)
Article
Ecology
Julie L. M. Campana, Allan Raffard, Alexis S. Chaine, Michele Huet, Delphine Legrand, Staffan Jacob
Summary: Dispersal plasticity, which refers to the ability of organisms to adjust their dispersal decisions according to the environment, plays a significant role in ecological and evolutionary dynamics. This study investigates the relationship between dispersal plasticity and fitness sensitivity to environmental gradients in five species of the genus Tetrahymena using microcosm experiments. The results show that dispersal plasticity is generally related to fitness sensitivity, with higher plasticity observed when fitness is more influenced by environmental gradients.
Article
Ecology
Julien Cote, Maxime Dahirel, Nicolas Schtickzelle, Florian Altermatt, Armelle Ansart, Simon Blanchet, Alexis S. Chaine, Frederik De Laender, Jonathan De Raedt, Bart Haegeman, Staffan Jacob, Oliver Kaltz, Estelle Laurent, Chelsea J. Little, Luc Madec, Florent Manzi, Stefano Masier, Felix Pellerin, Frank Pennekamp, Lieven Therry, Alexandre Vong, Laurane Winandy, Dries Bonte, Emanuel A. Fronhofer, Delphine Legrand
Summary: This study explores the impact of dispersal process on the morphology, physiology, and behavior of organisms, as well as its cascading effects on eco-evolutionary dynamics and ecosystem processes. The experimental results reveal that dispersal propensity is influenced by individuals' phenotype and local environmental harshness.
Article
Biochemistry & Molecular Biology
Luis M. M. San-Jose, Elvire Bestion, Felix Pellerin, Murielle Richard, Lucie Di Gesu, Jordi Salmona, Laurane Winandy, Delphine Legrand, Camille Bonneaud, Olivier Guillaume, Olivier Calvez, Kathryn R. Elmer, Andrey A. Yurchenko, Hans Recknagel, Jean Clobert, Julien Cote
Summary: Although animal dispersal plays key roles in ecological and evolutionary processes, its genetic basis, particularly in vertebrates, is poorly understood. This study investigated the genetic basis of natal dispersal in the common lizard using quantitative genetics, genome-wide sequencing, and transcriptome sequencing. The results suggest the heritability of dispersal and highlight the involvement of neurotransmitters and circadian pathways in regulating dispersal and shaping dispersal syndromes. These findings have implications for understanding dispersal behavior in vertebrates.