Shell Games: How different Hermit Crabs coexist

From: “Shell resource partitioning as a mechanism of coexistence in two co-occurring terrestrial hermit crab species”, S. Steibl & C. Laforsch (2020), BMC Ecology 20:1 https://doi.org/10.1186/s12898-019-0268-2 A fairly fundamental concept in ecology and evolutionary ecology is the competitive exclusion principle – that complete competitors cannot coexist. That is, a situation in which two species which …

Seeing red: why do all these beetles look like each other?

From: “Persistence of multiple patterns and intraspecific polymorphism in multi-species Müllerian communities of net-winged beetles”, M. Bocek, D. Kusy, M. Motyka and L. Bocak (2019). Frontiers in Zoology 16:38 https://frontiersinzoology.biomedcentral.com/articles/10.1186/s12983-019-0335-8 We’ve all seen warning colouration – the stripes on bees and wasps, the bright hues of snakes and the colourful spots of tropical frogs all …

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