Lesson glossary
Chewing – Part of tissue and veins are absent on the leaf. This is caused by insects that have mandibles or jaws to bite, tear, and chew food.
Citizen Science – The practice of public participation and collaboration in scientific research to increase scientific knowledge.
Classification (biological) – A systematic arrangement of plants and animals according to their presumed natural relationships.
Disease – A condition of a plant or animal that impairs normal body structure or function.
Geographic Location – A position on Earth defined by two coordinates, longitude and latitude.
Geographic Positioning System (GPS) – A navigational system using satellite signals to fix the location of a receiver on or above the earth’s surface.
High Tide – The maximum height reached by a rising tide.
Host – An organism that supplies food, resources, and acts as a substrate for a disease.
Insect – Any class of arthropods with well-defined head, thorax, and abdomen, only three pairs of legs, and typically one or two pairs of wings.
Leaf Galls – Abnormal growth or swelling on the external tissue of the leaf. This is caused by insects or mites feeding or laying eggs.
Leaf Mine – Absence of leaf tissue often forming linear patterns on the leaf. This is due to larval insects that bore into the leaf tissue and feed on it.
Low Tide – The minimum height reached by a falling tide.
Mangrove – Tropical maritime trees or shrubs that send out many prop roots and form dense masses important in coastal land building and as foundations of unique ecosystems.
Observation – An act of recognizing and noting a fact or occurrence often involving measurement with instruments.
Order (taxonomy) – A category of taxonomic classification ranking above the family and below the class.
Pathogen – Infectious agent that causes disease.
Random Sampling – A sampling method in which samples are selected in such a way that each observation has an equal chance of selection.
Red Mangrove – A true mangrove having red wood and numerous prop roots like those in the genus Rhizophora.
Skeletonization – Absence of leaf tissue but the veins of the leaf remain. This is caused by insect feeding.
Stippling – Small whitish colored dots or specs caused by insects sucking out the leaf’s sap using their piercing mouthpart.
Taxonomy – The study of the general principles of scientific classification.
Temperature – The degree of hotness or coldness measured on a definite scale.
Trap – A device for taking game or other animals.
Vector – An animal able to transmit a pathogen.
Wind Speed – How fast air moves past a certain point.
All definitions are from:
- Merriam Webster Dictionary
- NOAA
- Agrios, G.N. Plant Pathology. 5th edition.
