4 Works

What feeds on Quercus ilex L.? A biogeographical approach to studying trophic interactions in a Mediterranean keystone species

Juan Antonio Hernández-Agüero, Ildefonso Ruiz-Tapiador & Luis Cayuela
Holm oak (Quercus ilex L.) is regarded as a keystone plant species. Although trophic interactions may affect the phytophagous species distribution and abundance, the number of arthropod species using holm oak as a food resource and their levels of host specificity is not yet known. Here we aim to quantify these species, their feeding strategies and conservation status, investigate the taxonomic relatedness in each trophic guild and assess their degree of host specificity with the...

Ecological and biogeographic processes drive the proteome evolution of snake venom

Tuany Siqueira-Silva, Luiz Lima, Jônatas Chaves-Silveira, Talita Amado, Julian Naipauer, Pablo Riul & Pablo Martinez
The emergence of venom is an evolutionary innovation that favored the diversification and survival of snakes. The composition of snake venoms is known in detail from venom gland proteomic data. However, there is still a gap of knowledge about the forces that lead to the expression of different toxins in different proportions in the venom cocktail across space and time. LOCATION World. TIME PERIOD Modern. MAJOR TAXA STUDIED Elapidae and Viperidae. We integrated proteomic data...

The effect of inter-and intraspecific competition on individual and population niche widths – a four-decade study on two interacting salmonids

Sebastian Prati, Eirik Henriksen, Aslak Smalås, Rune Knudsen, Anders Klemetsen, Javier Sánchez-Hernández & Amundsen Per-Arne
Competition is assumed to shape niche widths, affecting species survival and coexistence. Expectedly, high interspecific competition will reduce population niche widths, whereas high intraspecific competition will do the opposite. Here we test in situ how intra- and interspecific competition affects trophic resource use and the individual and population niche widths of two lacustrine fish species, Arctic charr and brown trout, covering a 40 year study period with highly contrasting competitive impacts prior to and following...

Reproductive allocation in plants in terms of biomass, energy or nutrients

Marcos Méndez & Enrique Pérez-Martínez
Reproductive allocation (RA), the proportion of total resources that are invested in reproductive structures, is a key component of plant life histories. A major methodological issue is to identify the allocation currency that better estimates RA: biomass, energy or some mineral nutrient. Despite considerable effort to ascertain whether biomass could serve as an integrated estimate of the allocation of other resources, no clear guideline has emerged from the currency issue. Here, we reappraised this problem...

Registration Year

  • 2021

Resource Types

  • Dataset


  • King Juan Carlos University
  • Federal University of Paraíba
  • University of Tromsø - The Arctic University of Norway
  • Universidade Federal de Sergipe
  • University of Miami
  • Technical University of Madrid