Article
Behavioral Sciences
Sarah L. Y. Lau, Gray A. Williams, Antonio Carvajal-Rodriguez, Emilio Rolan-Alvarez
Summary: Size-assortative mating and sexual selection on size are common across species, with mate choice based on size being a widespread process. In studying the size-based mate choice in intertidal snails, it was found that males prefer to mate with slightly larger females, and multiple-choice experiments are valuable in understanding how males choose mates in the wild.
Article
Multidisciplinary Sciences
Tomos Potter, Jeff Arendt, Ronald D. Bassar, Beth Watson, Paul Bentzen, Joseph Travis, David N. Reznick
Summary: There is no consensus on why females prefer mates with rare phenotypes, but sexual selection can maintain genetic variation. We examined the fitness consequences of female preference for rare male color patterns in Trinidadian guppies over 10 generations and found that rare males have a reproductive advantage and mating with them gives females an indirect fitness advantage through the success of their sons. However, the fitness benefit disappears for grandsons as the rare phenotype becomes common. Contrary to prevailing theory, our study shows that female preference can be maintained through indirect selection.
Article
Psychology, Multidisciplinary
Steven W. Gangestad, Tran Dinh
Summary: Women's sexual interests change across their ovulatory cycles, with greater levels of sexual desire and interest during conception. There may be different strategic ends for sexual interests during conception and non-conception phases, but further research and theoretical explanations are needed.
FRONTIERS IN PSYCHOLOGY
(2022)
Article
Engineering, Industrial
Ting Zhang, Peimiao Li, Ningning Wang
Summary: This study develops a multi-period pricing model between a blockchain-technology-supported platform and a traditional platform, revealing the 'Matthew effect' caused by network effect. The study provides equilibrium pricing strategies under different degrees of network effect, offering guidance for platform choice in competition.
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Juanita Gutierrez-Valencia, Marco Fracassetti, Robert Horvath, Benjamin Laenen, Aurelie Desamore, Andreas D. Drouzas, Magne Friberg, Filip Kolar, Tanja Slotte
Summary: The study found that intra-sexual competition shapes the evolution of pollen-expressed genes, with the intensity of sexual selection decreasing as self-fertilization rates increase.
MOLECULAR BIOLOGY AND EVOLUTION
(2022)
Article
Business, Finance
Junkai Wang, Baolei Qi, Yaoxiang Nie, Muhammad Jameel Hussain
Summary: This paper uses data from Chinese listed companies from 2006 to 2020 to examine the impact of regional investment preferences on corporate financial risk. The results indicate that regional investment preference can significantly reduce corporate financial risk. Further research suggests that fierce industry competition and policy uncertainty will enhance the relationship between regional investment preference and corporate financial risk. This paper not only supplements relevant literature on the financial risk factors of enterprises, but also confirms the profound impact of the external environment on corporate governance.
FINANCE RESEARCH LETTERS
(2023)
Article
Psychology, Multidisciplinary
Felipe Nalon Castro, Wallisen Tadashi Hattori, Steven J. C. Gaulin, Maria Emilia Yamamoto, Fivia de Araujo Lopes
Summary: The study found that men expected assortative mating in romantic relationships, with mate value determined by the interaction of individual characteristics. While American and Brazilian males had similar mating expectations, minor differences reflected the influence of economic and cultural factors on mate preferences.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Ecology
Jon Richardson, Marlene Zuk
Summary: Research shows that males generally prefer virgin females, even in species with sperm precedence. Although virginity cannot be selected for in terms of female reproductive success, strong preference for virgins may affect selection on other traits. However, caution is needed in assuming male preference for virgins due to unexplained heterogeneity in effect sizes.
Article
Plant Sciences
Xiao-Feng Xu, Xue-Xue Qian, Kai-Qi Wang, Ya-Hui Yu, Yu-Yi Guo, Xin Zhao, Bo Wang, Nai-Ying Yang, Ji-Rong Huang, Zhong-Nan Yang
Summary: The study reveals that Mg deficiency leads to pollen abortion in MGT6+/- plants, while mgt6 plants remain fertile. Slow bud development in mgt6 allows for sufficient Mg accumulation in pollen, explaining its fertility. Additionally, mgt6 can restore fertility in mgt5 through additional Mg supply, showing a general mechanism for Mg transporter members to support pollen formation.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Economics
Jingna Ji, Tao Li, Lei Yang
Summary: This paper develops a price and low-carbon competition model for two vertically differentiated firms, a high-quality manufacturer (HM) and a low-quality manufacturer (LM), with consumers who prefer low-carbon products. The implementation of the cap-and-trade regulation (CATR) by the government is essential for the carbon trading market where firms can choose to buy (resp.,sell) carbon quota when the unit carbon emission reaches above (resp., below) the allocated quota. An investigation is conducted into how the pricing and carbon reduction rate (CRR) of manufacturers would be affected by the CATR and low-carbon preference of consumers.
TRANSPORTATION RESEARCH PART E-LOGISTICS AND TRANSPORTATION REVIEW
(2023)
Article
Ecology
Miguel Gomez-Llano, Wade A. Boys, Taylor Ping, Simon P. Tye, Adam M. Siepielski
Summary: This study conducted field experiments in three lakes to manipulate the relative frequencies of two damselfly species and evaluate the demographic contributions of different mechanisms affecting population growth. The results showed that interactions between mechanisms and life stages varied among populations, indicating that local coexistence is population specific. Furthermore, the study found that multiple mechanisms do not always increase competitor coexistence, as they can also lead to exclusion. Therefore, identifying coexistence mechanisms in other systems requires considering the contributions of different fitness components across the life cycle.
JOURNAL OF ANIMAL ECOLOGY
(2023)
Article
Multidisciplinary Sciences
Aya Sato, Ryu-ichi Aihara, Kenji Karino
Summary: The study indicates that under the trade-up hypothesis, females adjust the timing of fertilization based on the attractiveness of the male, leading to an increased opportunity for cryptic female choice and trading up.
Article
Ecology
Sofia G. Costa, Sara Magalhaes, Leonor R. Rodrigues
Summary: Reproduction is more sensitive to high temperatures and can better predict the response to climate change. This study found that sublethal high temperature affects the reproductive system of spider mites, leading to decreased fertility and biased sex ratio. However, the effects can be adjusted through remating and mating behavior.
FUNCTIONAL ECOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Yu Zhou, Yu Xiong, Minyue Jin
Summary: The impact of in-house remanufacturing and third-party remanufacturing on OEMs depends on the effects of market segmentation and deterrence against competitors. When facing potential rivals, third-party remanufacturing can protect incumbent OEMs from greater losses.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Entomology
Lvquan Zhao, Zheng Liu, Yuqun Lin, Shouzhu Liu
Summary: Mating disruption is an effective method for pest management, but delayed mating has limited impact on the reproductive fitness of the willow leaf beetle Plagiodera versicolora Laicharting. Additionally, mating age is an important factor affecting mating selection, sexual performance, and fecundity in P. versicolora.
Article
Ecology
Soyeon Bae, Joerg Mueller, Bernhard Foerster, Torben Hilmers, Sophia Hochrein, Martin Jacobs, Benjamin M. L. Leroy, Hans Pretzsch, Wolfgang W. Weisser, Oliver Mitesser
Summary: This study investigated the utility of satellite-borne radar (Sentinel-1) in tracking the fine-scale temporal trajectory of tree defoliation by insects. The radar data's canopy development index and normalized CDI were validated and found to strongly correlate with optical and TLS data, effectively explaining caterpillar abundance and discriminating between heavily and lightly defoliated forests. This high spatial and temporal resolution of Sentinel-1 radar potentially enables unrestricted measurements of dynamic canopy herbivory, providing valuable tools for monitoring insect pests and predicting outbreaks in forest ecosystems.
METHODS IN ECOLOGY AND EVOLUTION
(2022)
Article
Neurosciences
Nils Reinhard, Enrico Bertolini, Aika Saito, Manabu Sekiguchi, Taishi Yoshii, Dirk Rieger, Charlotte Helfrich-Foerster
Summary: In this study, using a highly specific split-Gal4 line, the researchers characterize Drosophila's lateral posterior neurons (LPNs) and propose their putative role in controlling daily activity and sleep patterns. They find that LPNs are heterogeneous, with two types of neurons promoting sleep and possibly wakefulness, respectively. LPNs exhibit manifold connections with other circadian clock neurons and rhythmically express neuropeptides that may contribute to the modulation of metabolism, feeding, and reproduction.
JOURNAL OF COMPARATIVE NEUROLOGY
(2022)
Article
Ecology
Sarah Redlich, Jie Zhang, Caryl Benjamin, Maninder Singh Dhillon, Jana Englmeier, Joerg Ewald, Ute Fricke, Cristina Ganuza, Maria Haensel, Thomas Hovestadt, Johannes Kollmann, Thomas Koellner, Carina Kuebert-Flock, Harald Kunstmann, Annette Menzel, Christoph Moning, Wibke Peters, Rebekka Riebl, Thomas Rummler, Sandra Rojas-Botero, Cynthia Tobisch, Johannes Uhler, Lars Uphus, Jorg Mueller, Ingolf Steffan-Dewenter
Summary: The study introduces a multi-scale space-for-time design to disentangle the effects of climate and land use on biodiversity and ecosystem services. The implementation in Bavaria, Germany resulted in study plots that maximize the range and independence of environmental variables at different spatial scales. Stratifying Bavaria into five climate zones and three land-use types allowed for an independent assessment of the relative contribution of climate and land use on biodiversity and ecosystem services.
METHODS IN ECOLOGY AND EVOLUTION
(2022)
Article
Biology
Mona Storms, Aryan Jakhar, Oliver Mitesser, Andreas Jechow, Franz Hoelker, Tobias Degen, Thomas Hovestadt, Jacqueline Degen
Summary: The presence and elevation of moon affect the mating behavior of male moths, as they use the moon for orientation and can reach females faster with increasing moon elevation. The choice of flight direction depends on the cardinal position of the moon, not on artificial light sources. Moon plays a key role in the orientation of male moths.
COMMUNICATIONS BIOLOGY
(2022)
Article
Genetics & Heredity
Peter Deppisch, Charlotte Helfrich-Foerster, Pingkalai R. Senthilan
Summary: This study systematically searched for and analyzed protein sequences of the CRY/PL family in various taxonomic groups. The researchers identified five distinct photolyases and six cryptochrome subfamilies, and observed changes in the number of these proteins over evolutionary history. The study also revealed that all cryptochromes arose independently from different photolyases, explaining their different modes of action.
Article
Biodiversity Conservation
Joerg Mueller, Oliver Mitesser, Marc W. Cadotte, Fons van der Plas, Akira S. Mori, Christian Ammer, Anne Chao, Michael Scherer-Lorenzen, Petr Baldrian, Claus Baessler, Peter Biedermann, Simone Cesarz, Alice Classen, Benjamin M. Delory, Heike Feldhaar, Andreas Fichtner, Torsten Hothorn, Claudia Kuenzer, Marcell K. Peters, Kerstin Pierick, Thomas Schmitt, Bernhard Schuldt, Dominik Seidel, Diana Six, Ingolf Steffan-Dewenter, Simon Thorn, Goddert von Oheimb, Martin Wegmann, Wolfgang W. Weisser, Nico Eisenhauer
Summary: Intensification of land use by humans has led to a homogenization of landscapes and decreasing resilience of ecosystems globally due to a loss of biodiversity, including the majority of forests. Biodiversity-ecosystem functioning (BEF) research has provided compelling evidence for a positive effect of biodiversity on ecosystem functions and services at the local (alpha-diversity) scale, but we largely lack empirical evidence on how the loss of between-patch beta-diversity affects biodiversity and multifunctionality at the landscape scale (gamma-diversity).
GLOBAL CHANGE BIOLOGY
(2023)
Editorial Material
Behavioral Sciences
Gunther K. H. Zupanc, Wolfgang Roessler, Eric J. J. Warrant, Uwe Homberg, Kentaro Arikawa, Charlotte Helfrich-Foerster, Peter M. M. Narins, Andrea Megela Simmons
Summary: The Journal of Comparative Physiology A, which has a history of 99 years, has published influential papers in comparative physiology and related disciplines. The winners of the 2023 Editors' Choice Awards include papers on contact chemoreception in prey sensing by octopus and magnetic maps in animal navigation. The winners of the 2023 Readers' Choice Awards include papers on thermal homeostasis of honeybee colonies and a historical letter on Einstein and the honeybee by von Frisch.
JOURNAL OF COMPARATIVE PHYSIOLOGY A-NEUROETHOLOGY SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
(2023)
Article
Behavioral Sciences
Peter Deppisch, Valentina Kirsch, Charlotte Helfrich-Foerster, Pingkalai R. Senthilan
Summary: The lineage and habitat of an insect affect its CRY/PL composition. Analysis of protein sequences from various insect species revealed the presence of four frequent CRY/PLs: 6-4 PL, CPDII PL, MCRY, and DCRY. Light-exposed insects tend to have more CRY/PLs, but even insects with reduced CRY/PLs still possess MCRY.
JOURNAL OF COMPARATIVE PHYSIOLOGY A-NEUROETHOLOGY SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
(2023)
Review
Behavioral Sciences
Taishi Yoshii, Aika Saito, Tatsuya Yokosako
Summary: The fruit fly Drosophila melanogaster exhibits two activity peaks, one in the morning and another in the evening, which change phase depending on the photoperiod. Researchers have used a two-oscillator model to explain the phase determination of these peaks, but a new four-oscillator model is proposed to explore the complex mechanism.
JOURNAL OF COMPARATIVE PHYSIOLOGY A-NEUROETHOLOGY SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
(2023)
Biographical-Item
Biology
Charlotte Helfrich-Foerster
JOURNAL OF BIOLOGICAL RHYTHMS
(2023)
Article
Neurosciences
Giulia Manoli, Meet Zandawala, Taishi Yoshii, Charlotte Helfrich-Foerster
Summary: Insects from high latitudes enter a state of overwintering diapause during the winter, which is characterized by arrested reproduction, reduced food intake and metabolism, and increased lifespan. The decrease in day length during summer-autumn is the main trigger for entering diapause. The circadian clock acts as an internal sensor for measuring photoperiod and orchestrates seasonal changes in physiology and metabolism through various neurohormones. However, the neuronal organization of the circadian clock network and the neurosecretory system that controls diapause in high-latitude insects is not well understood. Research on the high-latitude fly Drosophila littoralis shows similarities and differences in clock protein and neuropeptide/neurohormone expression compared to Drosophila melanogaster. This study provides insights into the role of diverse neuropeptides in regulating insect diapause.
JOURNAL OF COMPARATIVE NEUROLOGY
(2023)
Article
Biochemistry & Molecular Biology
Kelechi M. Amatobi, Ayten Gizem Ozbek-Unal, Stefan Schaebler, Peter Deppisch, Charlotte Helfrich-Foerster, Martin J. Mueller, Christian Wegener, Agnes Fekete
Summary: Modern lifestyle can disrupt the endogenous circadian rhythm and lead to metabolic syndrome. The variations of transport metabolites in the fly circulation are poorly understood and require further investigation.
JOURNAL OF LIPID RESEARCH
(2023)
Article
Ecology
Anne Lewerentz, Markus Hoffmann, Thomas Hovestadt, Uta Raeder, Juliano Sarmento Cabral
Summary: Submerged freshwater macrophytes are important for lakes, and their growth and survival are influenced by environmental factors. Changes in water temperature, nutrients, and turbidity can lead to changes in the distribution of macrophytes. This study assesses these potential changes and their implications.
Article
Biochemistry & Molecular Biology
Francesca Sara Colizzi, Jan A. Veenstra, Gustavo L. Rezende, Charlotte Helfrich-Foerster, David Martinez-Torres
Summary: In this study, a PDF-coding gene that has undergone significant changes in an otherwise highly conserved insect was identified in the aphid species Acyrthosiphon pisum. The results suggest that PDF may play a critical role in aphid seasonal timing.