Name Biology from Hawaii 2014 Ecological Pyramids Introduction Island is suitable habitat for many species: grasses, bushes, rabbits, mice, birds, Manana iwa ants, etc. But which species are common and which ones are rare? For example, if you wanted to collect grass to thatch a roof, would you be able to get a lot on Island? pili Manana To answer such questions, scientists estimated the biomass of different species on Manana Island. They randomly chose 12 areas that could represent the rest of the island. Every sample living thing in the 10m x 10m areas was collected, species sorted, dried, then weighed. Multiplying to the full area of Island, scientists could estimate the total biomass of each Manana species on the entire island. The data (below) are in pounds for greatest reification. Procedure 1. Group the Island species by trophic level: Manana producers (can obtain energy and raw materials from non-living things) • primary (1°) consumers (only eat producers) • secondary (2°) consumers (eat 1° consumers and below) • tertiary (3°) consumers (eat 2° consumers and below) • quaternary consumers (you get the idea) • 2. Graph the total mass of each trophic level on the axes provided. Results 1. Group these modern species by trophic level. Scientific name Common name Mass (lbs) poppy 2071 Argemone glauca pua kala/Hawaiian red spiderling 302 Boerhavia coccinea sandspur grass 10722 Cenchrus echinatus cat flea 7 Ctenocephalides felis (can live on rabbits) bird 121 Fregata minor ‘iwa/frigate cricket 464 Gryllodes sigillatus grass 4190 Heteropogon contortus pili mouse 451 Mus musculus European rabbit 909 Oryctolagus cuniculus 1631 Prosopis pallida keawe/Mesquite red fire ant 49 Solenopsis geminata rat flea 4 (can live on mice) Xenopsylla cheopis Results (continued) 2. Graph the biomass of each modern trophic level on the axes provided.
Biology from Hawaii Name 2014 Ecological Pyramids Introduction Manana Island is suitable habitat for many species: grasses, bushes, rabbits, mice, iwa birds, ants, etc. But which species are common and which ones are rare? For example, if you wanted to collect pili grass to thatch a roof, would you be able to get a lot on Manana Island? To answer such questions, scientists estimated the biomass of different species on Manana Island. They randomly chose 12 sample areas that could represent the rest of the island. Every living thing in the 10m x 10m areas was collected, species sorted, dried, then weighed. Multiplying to the full area of Manana Island, scientists could estimate the total biomass of each species on the entire island. The data (below) are in pounds for greatest reification. Procedure 1. Group the Manana Island species by trophic level: • producers (can obtain energy and raw materials from non-living things) • primary (1°) consumers (only eat producers) • secondary (2°) consumers (eat 1° consumers and below) • tertiary (3°) consumers (eat 2° consumers and below) • quaternary consumers (you get the idea) 2. Graph the total mass of each trophic level on the axes provided. Results 1. Group these modern species by trophic level. Scientific name Common name Mass (lbs) Argemone glauca pua kala/Hawaiian poppy 2071 Boerhavia coccinea red spiderling 302 Cenchrus echinatus sandspur grass 10722 Ctenocephalides felis cat flea (can live on rabbits) 7 Fregata minor ‘iwa/frigate bird 121 Gryllodes sigillatus cricket 464 Heteropogon contortus pili grass 4190 Mus musculus mouse 451 Oryctolagus cuniculus European rabbit 909 Prosopis pallida keawe/Mesquite 1631 Solenopsis geminata red fire ant 49 Xenopsylla cheopis rat flea (can live on mice) 4 Results (continued) 2. Graph the biomass of each modern trophic level on the axes provided.