Sap activity, which transforms excess ingested sugar into long-chain oligosaccharides." A much larger set of animals do however consume phloem sap by proxy, either "through feeding on the honeydew of phloem-feeding hemipterans. Honeydew is physiologically less extreme than phloem sap, with a higher essential:non-essential amino acid ratio and lower osmotic pressure," or by feeding on the biomass of insects that have grown on more direct ingestion of phloem sap. Maple syrup is made from reduced sugar maple xylem sap. The sap often is harvested from the Sugar Maple, "Acer saccharum". In some countries (e.g., Lithuania, Latvia, Estonia, Finland, Belarus, Russia) harvesting
Tonlé Sap Biosphere Reserve inter-species breeding amongst the crocodiles found in the floating farms on the western part of the Lake in and around Prek Toal. In 2001, the Tonlé Sap Biosphere Reserve (TSBR) of Cambodia was established by Royal Decree of the government of Cambodia to fulfil 3 key functions. These are: a) a conservation function to contribute to the conservation of biological diversity, landscapes, and ecosystem, including genetic resources, plant, fishery and animal species, and to the restoration of the essential character of the environment and habitat of biodiversity; b) a development function to foster sustainable development of ecology, environment, economy, society,