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Despite an increasing demand for Burgundy truffles (Tuber aestivum), gaps remain in our understanding of the fungus’ overall lifecycle and ecology. Here, we compile evidence from three independent surveys in Hungary and Switzerland. First, we measured the weight and maturity of 2,656 T. aestivum fruit bodies from a three-day harvest in August 2014 in a highly productive orchard in Hungary. All specimens ranging between 2 and 755 g were almost evenly distributed through five maturation classes. Then, we measured the weight and maturity of another 4,795 T. aestivum fruit bodies harvested on four occasions between June and October 2015 in the same truffière. Again, different maturation stages occurred at varying fruit body size and during the entire fruiting season. Finally, the predominantly unrelated weight and maturity of 81 T. aestivum fruit bodies from four fruiting seasons between 2010 and 2013 in Switzerland confirmed the Hungarian results. The spatiotemporal coexistence of 7,532 small-ripe and large-unripe T. aestivum, which accumulate to ~182 kg, differs from species-specific associations between the size and ripeness that have been reported for other mushrooms. Although size-independent truffle maturation stages may possibly relate to the perpetual belowground environment, the role of mycelial connectivity, soil property, microclimatology, as well as other abiotic factors and a combination thereof, is still unclear. Despite its massive sample size and proof of concept, this study, together with existing literature, suggests consideration of a wider ecological and biogeographical range, as well as the complex symbiotic fungus-host interaction, to further illuminate the hidden development of belowground truffle fruit bodies.
Despite a large body of research, the linguistic nature of exhaustivity in single wh-questions is unresolved. Moreover, little empirical evidence exists as to which related structures pattern with bare wh-questions regarding exhaustivity. This paper explores the felicity of various exhaustivity violations in unembedded single bare wh-questions in German and compares them to related structures. In two novel felicity judgment experiments, a total of 441 participants rated exhaustive as well as non-exhaustive plural and non-exhaustive singleton answers to wh-questions or statements in a questionnaire. Answers were based on picture stimuli depicting individuals performing various actions. The felicity of non-exhaustive answers was compared across four main test conditions: bare wh-questions (wer ‘who’), wh-questions with a lexical exhaustivity marker (wer alles ‘who all’), plural definite descriptions contained in a restrictive relative clause (e.g., “the people who are fishing in the garden”), and the scalar quantifier “some” (e.g., “some people who are fishing in the garden”).
We employ a novel methodological approach to improve the interpretability of statistical differences between experimental conditions by using the statistical measure of Minimal Important Difference (MID). Our results from estimated MIDs reveal that adults’ felicity judgments of non-exhaustive plural answers to bare wh-questions pattern with those to wer alles-questions and to plural definite descriptions: exhaustivity violations in the bare wh, the wer alles and the plural definite conditions were rated as less felicitous than exhaustivity violations in the some-condition.