Article
Ecology
Blanca Arroyo-Correa, Pedro Jordano, Ignasi Bartomeus
Summary: Patterns of resource use at the species level are influenced by individual differences in exploiting available resources, such as pollinator use by plants. Our study used detailed data on plant-pollinator interactions to examine how variation in pollinator use among individual plants impacts community structure and dynamics. We found that all co-occurring plant species consisted of specialists interacting with subsets of pollinators that visited generalists, and the differences in interaction patterns were driven by variation in traits among individuals. Furthermore, communities with higher levels of variation in plant traits and pollinator use showed a nested structure and were more feasible. Our research highlights the importance of preserving intraspecific variation in traits and resource use within populations.
Article
Biology
Yichao Zeng, John J. Wiens
Summary: The oldest mutualistic interactions in all organisms were found to be significantly older than the oldest antagonistic interactions, while this pattern was reversed in animals. Many mutualistic interactions were shown to persist for hundreds of millions of years, providing evidence for their long-term stability and niche conservatism in species interactions.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Multidisciplinary Sciences
Leandro G. Cosmo, Ana Paula A. Assis, Marcus A. M. de Aguiar, Mathias M. Pires, Alfredo Valido, Pedro Jordano, John N. Thompson, Jordi Bascompte, Paulo R. Guimaraes Jr
Summary: Ecological interactions are vital for maintaining biodiversity on Earth. This study investigates the impact of direct and indirect effects in mutualistic networks, showing that indirect effects play a major role in determining species fitness. Indirect effects prevent coevolving species from adapting to their mutualistic partners and other environmental pressures, resulting in decreased fitness. The topological effect of peripheral species experiencing more indirect effects and greater reduction in fitness compared to central species is evident. The study also highlights how honeybees as a central species in pollination networks increase indirect effects, thus reducing the fitness of other species.
Article
Multidisciplinary Sciences
Mark Otieno, Neelendra Joshi, Benjamin Rutschmann
Summary: African violets, endemic to Eastern Arc Mountains, rely on insect pollinators for increased fruit set. While insects are essential for pollination success, there is evidence of potential self-pollination in these plants, indicating a mixed breeding system.
Article
Ecology
Serdar Turkarslan, Nejc Stopnisek, Anne W. Thompson, Christina E. Arens, Jacob J. Valenzuela, James Wilson, Kristopher A. Hunt, Jessica Hardwicke, Adrian Lopez Garcia de Lomana, Sujung Lim, Yee Mey Seah, Ying Fu, Liyou Wu, Jizhong Zhou, Kristina L. Hillesland, David A. Stahl, Nitin S. Baliga
Summary: Early evolution of mutualism is characterized by significant and predictable adaptive changes, with research showing that cooperation can be enhanced through synergistic epistasis between genomes of interacting species, allowing for the coexistence of generalists and specialized variants within mutualistic assemblages.
Article
Ecology
Lucas A. Camacho, Cecilia Siliansky de Andreazzi, Lucas P. Medeiros, Irina Birskis-Barros, Carine Emer, Carolina Reigada, Paulo R. R. Guimaraes Jr
Summary: A fundamental fact about mutualisms is that there are cheaters that benefit from the use of resources and services without providing any positive feedback to other species. The role of cheaters in the evolutionary dynamics of mutualisms has long been recognized, yet their broader impacts at the community level, beyond species they directly interact with, is still poorly understood. Because mutualisms form networks often involving dozens of species, indirect effects generated by cheaters may cascade through the whole community, reshaping trait evolution.
Article
Biology
Francois Duchenne, Rafael O. Wueest, Catherine H. Graham
Summary: Community ecologists have made significant progress in understanding the relationship between diversity and stability in natural communities by studying interaction networks. However, they have generally neglected the effects of seasonal organization of interactions on community stability. This study extends previous theoretical findings by incorporating empirical seasonal structures into dynamic models and examining multiple facets of network stability. The results demonstrate that the seasonal structure enhances community stability by allowing for diverse and resilient communities while preserving robustness to species extinctions. The effects of seasonal structure on stability are mediated by changes in network structure and productivity, emphasizing the importance of considering seasonal structure in the diversity-stability and diversity-productivity debates.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Review
Ecology
D. Matthias Dehling, Elisa Barreto, Catherine H. Graham
Summary: Our study suggests using a species' interaction niche to assess its contribution to functional and phylogenetic diversity, in order to identify species and interspecific interactions that are particularly important for ecosystem conservation.
TRENDS IN ECOLOGY & EVOLUTION
(2022)
Article
Ecology
Jose Maria Gomez, Eugene W. Schupp, Pedro Jordano
Summary: Mutualism effectiveness is defined as the contribution of an interacting organism to its partner's fitness, determined by the quantity and quality components of immediate outcomes. The spatial structure of effectiveness values reflects the evolutionary history of mutualistic interactions, with properties such as distribution, relative contribution, and correlation impacting the landscape. Exploring effectiveness landscapes in other mutualisms can provide insights into the evolutionary and ecological consequences of mutualisms.
Article
Biology
S. Ramirez-Calero, J. R. Paula, E. Otjacques, T. Ravasi, R. Rosa, C. Schunter
Summary: In this study, the researchers evaluated the effects of future environmental conditions on the behavior and molecular mechanisms of mutualistic interactions between the cleaner wrasse and its clients. The results showed that elevated temperature and high CO2 conditions can disrupt the behavior of the fish and have different effects on their neuro-molecular mechanisms. Interestingly, no changes in behavior were observed under the combined conditions of warming and high CO2, but signs of endoplasmic reticulum stress and apoptosis were found. This study highlights the potential impacts of impending environmental shifts on mutualistic interactions and coral reef ecosystems.
Article
Microbiology
Toshiyuki Takagi, Kako Aoyama, Keisuke Motone, Shunsuke Aburaya, Hideyuki Yamashiro, Natsuko Miura, Koji Inoue
Summary: The study developed a method to manipulate the microbiome of corals, favoring the growth of pigmented bacteria. The presence of these bacteria helped the microalgae maintain better photosynthetic function under light stress. The study also discovered a symbiotic relationship between dinoflagellates and bacteria, where they mutually reduce environmental stress.
MICROBIOLOGY SPECTRUM
(2023)
Article
Plant Sciences
Yohan Pillon, Vanessa Hequet
Summary: This review focuses on the taxonomy of Argophyllum in New Caledonia, discussing validly published names, description of a new species, and recognition of seven endemic species in the region. The leaf nickel content of A. riparium exceeding 1000 μg g(-1) makes it a nickel hyperaccumulator, a trait shared by all other species in the region except for A. nitidum.
Review
Ecology
Paul J. CaraDonna, Laura A. Burkle, Benjamin Schwarz, Julian Resasco, Tiffany M. Knight, Gita Benadi, Nico Bluethgen, Carsten F. Dormann, Qiang Fang, Jochen Frund, Benoit Gauzens, Christopher N. Kaiser-Bunbury, Rachael Winfree, Diego P. Vazquez
Summary: Studies have shown that plant-animal mutualistic networks exhibit high levels of dynamism at different temporal scales, with the most significant changes observed at the finest temporal scales. While temporal variation weakly influences network properties at intermediate scales, continued shifts in interactions at the broadest temporal scales lead to dramatic community changes.
Article
Environmental Sciences
Jonathan Tempesti, Joachim Langeneck, Claudio Lardicci, Ferruccio Maltagliati, Alberto Castelli
Summary: The influence of substrate morphology on the early stages of fouling development was investigated. Results showed that substrate complexity significantly affected fouling colonization, especially the establishment of non-indigenous species (NIS).
MARINE POLLUTION BULLETIN
(2022)
Review
Ecology
Alain Dejean, Frederic Azemar, Piotr Naskrecki, Maurice Tindo, Vivien Rossi, Christian Faucher, Herve Gryta
Summary: The final extinction events caused a proliferation of fungi, which differentiated into saprophytes, parasites, predators, commensals, and mutualists. Ant-Attina mutualism involves cultivating Basidiomycota for food. Leaf-cutting, fungus-growing ants innovate by growing fungal gardens from fresh plant material. Certain Ascomycota in domatia eaten by ants exhibit convergence as a form of farming for protection. Ant gardens shelter endophytic fungi promoting epiphyte growth. Ascomycota fibers are used by leaf-cutting ants to reinforce their nests, representing farming for structural materials.
ECOLOGY AND EVOLUTION
(2023)
Article
Environmental Sciences
Julia Lanner, Nicolas Dubos, Benoit Geslin, Boris Leroy, Carlos Hernandez-Castellano, Jovana Bila Dubaic, Laura Bortolotti, Joan Diaz Calafat, Aleksandar Cetkovic, Simone Flaminio, Violette Le Feon, Jordi Margalef-Marrase, Michael Orr, Baerbel Pachinger, Enrico Ruzzier, Guy Smagghe, Tina Tuerlings, Nicolas J. Vereecken, Harald Meimberg
Summary: The complex relationships between invasive species and their new environments pose challenges for predicting their distribution. This study focuses on invasive bees, particularly the solitary wild bee Megachile sculpturalis, which is expanding in North America and Europe. The species has colonized suitable areas in North America, largely due to anthropogenic factors, but is still in the early stages of invasion in Europe. The study highlights the importance of expert knowledge in evaluating meaningful variables for species distribution modeling and emphasizes the need for monitoring and effective management strategies for invasive pollinator species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Zoology
Xavier Lair, Lise Ropars, Jeffrey H. Skevington, Scott Kelso, Benoit Geslin, Elise Minssieux, Gabriel Neve
Summary: The occurrence and distribution of Pelecocera species in France were revised, and a new species was described. Distribution and ecological data of these species were provided, and an identification key was given. Mitochondrial gene sequences supported the morphological species concept, with one exception.
Article
Biodiversity Conservation
Herve Jourdan, Edouard Bourguet, Christian Mille, Roman Gula, Jorn Theuerkauf
Summary: The presence of little fire ants negatively affects the biomass of soil fauna, potentially impacting the endangered kagu bird by limiting its food resources. This could transform the rainforest into an unsuitable habitat for kagu conservation.
BIOLOGICAL INVASIONS
(2022)
Article
Plant Sciences
Coline C. Jaworski, Benoit Geslin, Marie Zakardjian, Caroline Lecareux, Pauline Caillault, Gabriel Neve, Jean-Yves Meunier, Sylvie Dupouyet, Aoife C. T. Sweeney, Owen T. Lewis, Lynn Dicks, Catherine Fernandez
Summary: Pollinators are declining globally, with climate change as a key driver. This study examined the effects of drought on floral traits, plant reproduction, and pollinator visits in a Mediterranean shrubland. The results showed that drought altered floral emissions and nectar production, and affected pollinator behavior. However, the impacts of drought are expected to be stronger in the future, which could have profound effects on plant-pollinator networks in Mediterranean ecosystems.
JOURNAL OF ECOLOGY
(2022)
Article
Ecology
Jeremy Anso, Amandine Gasc, Edouard Bourguet, Laure Desutter-Grandcolas, Herve Jourdan
Summary: This study investigated the changes in cricket assemblages along a tropical ecological gradient in southern New Caledonia. The results showed that cricket species assemblages responded significantly to ecological succession, with each stage having unique species composition that revealed their conservation value. The findings also supported the use of acoustic approaches to monitor tropical environments.
Article
Ecology
Luca Carisio, Lucie Schurr, Veronique Masotti, Marco Porporato, Gabriel Neve, Laurence Affre, Sophie Gachet, Benoit Geslin
Summary: Nectar is an essential resource for insects, but the traditional method for measuring nectar productivity may not account for the impact of insect activity. This study used field experiments and simulation models to examine the effect of insect foraging activity on nectar productivity in lavender and fennel flowers. The results showed that insect activity had a significant influence on nectar production, suggesting that it should be considered when estimating the resources produced by plants.
FUNCTIONAL ECOLOGY
(2022)
Article
Biodiversity Conservation
Jean-Yves Meunier, Benoit Geslin, Mehdi Issertes, Gilles Mahe, Frederic Vyghen, Harold Labrique, Yves Dutour, Vincent Poncet, Jeremy Migliore, Gabriel Neve
Summary: This study provides data on 9752 bee specimens hosted in several museums in southeast France, most of which are from France. The specimens were captured from the beginning of the nineteenth century to 2018, and their geographical locations are based on the collection site. The identification of 1377 specimens, mainly belonging to the genus Bombus, is considered reliable.
BIODIVERSITY DATA JOURNAL
(2023)
Article
Ecology
Karolina Argote, Cecile H. Albert, Benoit Geslin, Charlotte Biryol, Mathieu Santonja
Summary: Collembola can perceive and seek better litter quality, but litter quality does not affect their foraging behavior to select high-quality resources.
ECOLOGY AND EVOLUTION
(2023)
Article
Biodiversity Conservation
Marie Zakardjian, Herve Jourdan, Thomas Cochenille, Prisca Mahe, Benoit Geslin
Summary: Assessing bee distribution in challenging areas like tropical oceanic islands is crucial for species evaluation and conservation prioritization. This study provides an updated checklist of bee species in New Caledonia, highlighting the need for increased sampling efforts and biomolecular analyses to clarify species distribution.
BIODIVERSITY DATA JOURNAL
(2023)
Article
Ecology
Karolina Argote, Cecile H. Albert, Benoit Geslin, Charlotte Biryol, Mathieu Santonja
Summary: This study investigated the ability of Collembola to perceive and seek better litter quality. The results showed that litter quality plays a relevant role in Collembola demographic parameters, but does not affect foraging behavior to select high-quality resources.
ECOLOGY AND EVOLUTION
(2023)