As cities expand, understanding how urbanization affects biodiversity is a key ecological goal. Yet, little is known about how host‐associated microbial diversity responds to urbanization. We asked whether communities of microbial (bacterial and fungal) in floral nectar and sugar‐water feeders and vectored by nectar‐feeding birds—thus forming a metacommunity—differed in composition and diversity between suburban and rural gard...

Climate warming may be exacerbated if rising temperatures stimulate losses of soil carbon to the atmosphere. The direction and magnitude of this carbon‐climate feedback are uncertain, largely due to lack of knowledge of the thermal adaptation of the physiology and composition of soil microbial communities. Here, we applied the macromolecular rate theory (MMRT) to describe the temperature response of the microbial decomposition...