9 Works

Multidimensional trophic niche revealed by complementary approaches: gut content, digestive enzymes, fatty acids and stable isotopes in Collembola

Anton Potapov, Melanie Pollierer, Sandrine Salmon, Vladimír Šustr & Ting-Wen Chen
Trophic niche differentiation may explain coexistence and shape functional roles of species. In complex natural food webs, however, trophic niche parameters depicted by single and isolated methods may simplify the multidimensional nature of consumer trophic niches, which includes feeding processes such as food choice, ingestion, digestion, assimilation and retention. Here we explore the correlation and complementarity of trophic niche parameters tackled by four complementary methodological approaches, i.e., visual gut content-, digestive enzyme-, fatty acid- and...

Trait-habitat associations explain novel bird assemblages mixing native and alien species across New-Zealand landscapes

Jean-Yves Barnagaud, Eckehard Brockerhoff, Raphael Mossion, Paul Dufour, Sandrine Pavoine, Marc Deconchat & Luc Barbaro
Aim: Species introductions have reshaped island faunas for the last 200 years, often threatening native biodiversity. Approximately equal numbers of native and alien species currently co-occur in the New Zealand avifauna, but they show distinct habitat use. Antagonistic interactions, habitat affinities and legacies of introduction history may concur to explain their segregation along habitat gradients. To investigate these processes, we explored how habitat, ecological traits and introduction history relate with the current composition of bird...

Data from: Ovipositor and mouthparts in a fossil insect support a novel ecological role for early orthopterans in 300 million years old forests

Lu Chen, Alexander Blanke, Jun-Jie Gu, Qiang Yang, Dong Ren & Olivier Béthoux
A high portion of the earliest known, Pennsylvanian, insect fauna is composed of the so-called ‘lobeattid insects’, which systematic affinities and role as foliage feeders remain debated. We investigated hundreds of samples of a new lobeattid species from the Xiaheyan locality using a combination of photographic techniques, including Reflectance Transforming Imaging, and geometric morphometrics, to document its morphology, and infer its phylogenetic position and ecological role. Ctenoptilus frequens sp. nov. possessed a sword-shaped ovipositor whose...

Photosynthesis from stolen chloroplasts can support sea slug reproductive fitness

Paulo Cartaxana, Felisa Rey, Charlotte LeKieffre, Diana Lopes, Cedric Hubas, Jorge E. Spangenberg, Stéphane Escrig, Bruno Jesus, Gonçalo Calado, Rosário Domingues, Michael Kühl, Ricardo Calado, Anders Meibom & Sónia Cruz
Some sea slugs are able to steal functional chloroplasts (kleptoplasts) from their algal food sources, but the role and relevance of photosynthesis to the animal host remain controversial. While some researchers claim that kleptoplasts are slowly digestible ‘snacks’, others advocate that they enhance the overall fitness of sea slugs much more profoundly. Our analysis show light-dependent incorporation of 13C and 15N in the albumen gland and gonadal follicles of the sea slug Elysia timida, representing...

Evolution of body size and wing shape trade-offs in arsenurine silkmoths

Chris Hamilton, Nathalie Winiger, Juliette Rubin, Jesse Breinholt, Rodolphe Rougerie, Ian Kitching, Jesse Barber & Akito Kawahara
One of the key objectives in biological research is understanding how evolutionary processes have produced Earth's diversity. A critical step towards revealing these processes is an investigation of evolutionary tradeoffs – that is, the opposing pressures of multiple selective forces. For millennia, nocturnal moths have had to balance successful flight, as they search for mates or host plants, with evading bat predators. However, the potential for evolutionary trade-offs between wing shape and body size are...

Beta redundancy for functional ecology

Carlo Ricotta, Evsey Kosman, Fabien Laroche & Sandrine Pavoine
Functional beta redundancy has been recently defined as the fraction of species dissimilarity between two plots not expressed by functional dissimilarity. As such, it summarizes to what degree the compositional differences between two plots mirror their functional differences. A fundamental condition to obtain an appropriate measure of functional beta redundancy is that the functional dissimilarity between the plots is always lower (or at least not higher) than the corresponding species dissimilarity. However, many of the...

Data from: Kin relationships in cultural species of the marine realm: case study of a matrilineal social group of sperm whales off Mauritius Island, Indian Ocean

Jean-Luc Jung, François Sarano, Justine Girardet, Véronique Sarano, Hugues Vitry, Axel Preud'homme, René Heuzey, Ana Maria Garcia Cegarra, Bénédicte Madon, Fabienne Delfour, Hervé Glotin & Olivier Adam
Understanding the organization and dynamics of social groups of marine mammals through the study of kin relationships is particularly challenging. Here we studied a stable social group of sperm whales off Mauritius, using underwater observations, individual-specific identification, non-invasive sampling, and genetic analyses based on mitochondrial sequencing and microsatellite profiling. Twenty-four sperm whales were sampled between 2017 and 2019. All individuals except one adult female shared the same mtDNA haplotype—one that is rare in the Western...

Checklists of endemic tracheophytes and bryophytes to the French Overseas Territories

Simon Veron, Carlos Rodrigues-Vaz, Elise Lebreton, Claudine Ah-Peng, Vincent Boullet, Hervé Chevillotte, Stephan Robbert Gradstein, Joël Jérémie, Elisabeth Lavocat-Bernard, Marc Lebouvier, Jean-Yves Meyer, Jérôme Munzinger, Odile Poncy, Louis Thouvenot, Guillaume Viscardi, Guillaume Léotard, Olivier Gargominy, Sébastien Leblond, Marc Pignal, Germinal Rouhan, Sandrine Tercerie, Vanessa Invernon & Serge Muller
A broad range of climatic and biogeographical conditions are represented in the French Overseas Territories, from sub-polar to equatorial, resulting in a high diversity of endemic species. We mobilized data from herbaria, floras, checklists, literature, the expertise of botanists and plant ecologists to compile the most complete dataset on endemic vascular plants and bryophytes in the 15 French Overseas Territories. To date, 3748 spermatophytes (seed plants), 244 pteridophytes (ferns and lycophytes) and 448 bryophytes are...

Linking micro and macroevolution of head shape in an island radiation

Maxime Taverne, Hugo Dutel, Michael Fagan, Anamaria Štambuk, Duje Lisičić, Zoran Tadić, Anne-Claire Fabre & Anthony Herrel
Phenotypic traits have been shown to evolve in response to variation in the environment. However, the evolutionary processes underlying the emergence of phenotypic diversity can typically only be understood at the population level. Consequently, how subtle phenotypic differences at the intraspecific level can give rise to larger-scale changes in performance and ecology remains poorly understood. We here tested for the covariation between ecology, bite force, jaw muscle architecture, and the three-dimensional shape of the cranium...

Registration Year

  • 2021

Resource Types

  • Dataset


  • Musée National d'Histoire Naturelle
  • Capital Normal University
  • University of La Réunion
  • University of Zagreb
  • University of Aveiro
  • University of Cologne
  • University of Rennes 1
  • Natural History Museum
  • Capital of Texas Team Survivor
  • University of Lausanne