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Université de Fribourg

Disentangling the effects of external perturbations on coexistence and priority effects

Song, Chuliang ; Rohr, Rudolf P. ; Vasseur, David ; Saavedra, Serguei

In: Journal of Ecology, 2020, p. 1365-2745.13349

A major challenge in ecological research is to identify the tolerance of ecological communities to external perturbations. Modern coexistence theory (MCT) has been widely adopted as a framework to investigate the tolerance to perturbations in relative reductions of per capita growth rates, often using metrics that explicitly eliminate the independent role of intrinsic growth rates. More...

Università della Svizzera italiana

Consumer empowerment in the digital economy : availing sustainable purchasing decisions

Gazzola, Patrizia ; Colombo, Gianluca ; Pezzetti, Roberta ; Nicolescu, Luminita

In: Sustainability, 2017, vol. 9, no. 5, p. 693

The advent of the digital economy and, implicitly, of competition in the online marketplace has triggered new challenges in terms of consumer protection approaches. Online, consumer skills are expected to be improved and the level of consumer awareness and engagement increased. These are the baseline prerequisites of the sustainable purchasing decision and, thus, should be considered as pillars...

Université de Fribourg

Environmentally mediated reproductive success predicts breeding dispersal decisions in an early successional amphibian

Boualit, Laurent ; Pichenot, Julian ; Besnard, Aurélien ; Helder, Rémi ; Joly, Pierre ; Cayuela, Hugo

In: Animal Behaviour, 2019, vol. 149, p. 107–120

Dispersal is a central mechanism in ecology and evolution. Dispersal evolution is driven by a trade-off between costs and benefits, which is influenced by interindividual variability and local environmental conditions (context-dependent dispersal). Many studies have investigated how dispersal decisions may be influenced by environmental factors, including density, predation and interspecific...

Université de Fribourg

Fossil amphibians and reptiles from Plakias, Crete: A glimpse into the earliest late Miocene herpetofaunas of southeastern Europe

Georgalis, Georgios L. ; Villa, Andrea ; Vlachos, Evangelos ; Delfino, Massimo

In: Geobios, 2016, vol. 49, no. 6, p. 433–444

Fossil amphibians and reptiles from the earliest late Miocene (early Tortonian, MN 9) of Plakias (Crete, Greece) are described in this paper. Most of the material is fragmentary, precluding precise taxonomic assignment. Nevertheless, the herpetofauna of Plakias is here shown to be diverse, comprising at least six different taxa: an alytid anuran, a crocodilian, two turtles (a pan-trionychid...