Carnivorous plants: the role of

Author:

Chalk Phillip M.ORCID,Hu Hang-Wei

Abstract

Carnivorous plants have access to several potential sources of nitrogen, including root uptake, predation, litterfall, atmospheric deposition and defecation by mutualistic animals. Our aim was to assess the relative importance of different N sources so as to better understand the ecology of these physiologically diverse plants that include many genera and species inhabiting terrestrial and aquatic environments worldwide. Plant physiology and habitat were the major determinants of the relative importance of N source. Our secondary aim was to examine protocarnivorous plants that do not fit the exact definition for carnivory. Several protocarnivorous plants were classified as carnivorous based on specialised trapping mechanisms, isotopic data and mixing models. Several carnivorous plants can transfer their functions of prey capture and digestion to mutualistic animal partners, which is termed ecological outsourcing. Outsourcing arthropod prey capture and digestion to mutualistic bats is a beneficial strategy for the carnivorous plant Nepenthes hemsleyana.

Publisher

CSIRO Publishing

Subject

Plant Science,Ecology, Evolution, Behavior and Systematics

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