5 Works

Data from: Selection on fruit traits is mediated by the interplay between frugivorous birds, fruit flies, parasitoid wasps, and seed-dispersing ants

Facundo Palacio, Adam Siepielski, Mariela Lacoretz & Mariano Ordano
Every organism on Earth must cope with a multitude of species interactions both directly and indirectly throughout its life cycle. However, how selection from multiple species occupying different trophic levels affects diffuse mutualisms has received little attention. As a result, how a given species amalgamates the combined effects of selection from multiple mutualists and antagonists to enhance its own fitness remains little understood. We investigated how multispecies interactions (frugivorous birds, ants, fruit flies, and parasitoid...

Female-driven intersexual coevolution in beetle genitalia

Bruno Genevcius, Joanna Baker, Filipe Bianchi & Adriana Marvaldi
Genital coevolution is a pervasive phenomenon as changes in one sex tend to impose fitness consequences on the other generating sexual conflict. Sexual conflict is often thought to cause stronger selection on males due to the Darwin-Bateman’s anisogamy paradigm. However, recent studies have demonstrated that female genitalia may be equally elaborated and perform diverse extra-copulatory functions. These characteristics suggest that female genitals can also be primary targets of selection, especially where natural selection acts on...

Data from: The costs of ignoring species detectability on functional diversity estimation

Facundo Palacio, René Maragliano & Diego Montalti
Functional diversity (FD) approaches have been increasingly used to understand ecosystem functioning in bird communities. These typically rely on the assumption that species are perfectly detected in the field, despite the fact that imperfect detection represents a ubiquitous source of bias in biodiversity studies. This may be notably important in FD studies, because detection may depend on the functional traits used to compute FD metrics. However, little effort has been devoted to account for imperfect...

Geometric morphometrics of endophytic oviposition traces of Odonata (Eocene, Argentina)

Eugenia Romero-Lebrón, Raquel M. Gleiser & Julián F. Petrulevicius
The insertion of the Odonata ovipositor in the plant tissue generates a scar that surrounds the eggs (trace). In insects, individual egg traces are known to vary in size, but their variation in individual shape is mostly unknown. Twenty four specimens were obtained from the Laguna del Hunco (Lower Eocene, Chubut) and Río Pichileufú (Middle Eocene, Río Negro), Argentina, which had 1346 oviposition traces (MEF Collection). For the first time, a study of the shape...

Data from: Evaluation of the ontogeny and sexual dimorphism in a new species of Middle Triassic Darwinulocopina (Crustacea, Ostracoda) from Argentina

Ana Paula Carignano, Ana Carignano, Javier Echevarría & Ana Zavattieri
The Darwinulocopina comprise an interest group of ostracods which where among the first invaders of freshwater waters during the late Palaeozoic. The Permian–Triassic extinction greatly reduced their diversity, reaching present times represented by one family. The darwinulids are regarded as “ancient asexuals” since a parthenogenetic mode of reproduction is assumed for all the post-Triassic members of the group. However, the high diversity achieved during the late Palaeozoic is often associated with sexual reproduction. Here we...

Registration Year

  • 2020
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Affiliations

  • National University of La Plata
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  • University of Buenos Aires
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  • University of Sao Paulo
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  • Federal University of Rio Grande do Sul
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  • Fundación Miguel Lillo
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  • Centro Científico Tecnológico - Mendoza
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  • National University of Córdoba
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  • University of Reading
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  • University of Arkansas System
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