Parameter: Treatment

Dataset: 
Algal Ash-Free Dry Weight - Cerro Mundo 2
Parameter: 
treatment
Master parameters information
Short Name:
 treatment
Short Description:
 treatment
Official Name:
 treatment
No Data Value:
 nd
Description:
 

Experimental conditions applied to experimental units.  In comparative experiments, members of the complementary group, the control group, receive either no treatment or a standard treatment.

Dataset-parameters information
Supplied Name: 
Treatment
Supplied Units: 
unitless
Datatype: 
String
Conversion Necessary: 
no
Description: 

Four types of experimental treatments were used: (All Present) Open pizzas (treatment cages of circular bases only) with full access to all grazers. (Urchins Only) Urchin inclusions, where two pencil urchins remained caged throughout the duration of each trial to maintain the identity and density of our herbivore of interest constant. (None Present) Full exclusions, preventing access to all macro-herbivores such as sea urchins, fishes, iguanas, and turtles, but not to meso-herbivores such as amphipods. These cages are covered with a top. (Procedural) Procedural control that included partial sides, designed to affect flow and light to a similar degree as other cages to test for experimental artifacts of the herbivore manipulation.