Zoology Glossary Index:
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Restriction of habitat distribution in response to increase in number of competing species.
Increase in average breadth of habitat distribution of species in depauperate biotas, especially on islands, compared with species in more diverse biotas.
An area of distinct habitat type.
Preference for certain habitats.
Place where an animal or plant normally lives, often characterized by a dominant plant form or physical characteristic (that is, the stream habitat, the forest habitat).
"A conservation and rehabilitation practice in which birds released into the wild are prvisioned with food while they gradually become independent." (Source: Sibley)
"Hind toe." (Source: Sibley)
Animal that has just emerged from an egg.
Heat Sensitive Pit
Organ that helps certain snakes locate their warm-blooded prey. In boas and pythons, these border the mouth (labial pits); in pitvipers, they are between the nostri, the eye, and the moutn (loreal pits).
Having a stem that remains soft and succulent; not woody.
An organism that consumes living plants or their parts.
A type of animal in which each individual possesses both male and female reproductive organs.
"Arrangement of the toes in which the inner front toe is turned backward such that two toes point forward and two backward." (Source: Sibley)
The variety of qualities found in an environment (habitat patches) or a population (genotypic variation).
An organism that utilizes organic materials as a source of energy and nutrients.
State of winter dormancy associated with lowered body temperature and metabolism.
The structure and arrangement of the tissues of organisms; the study of these.
"Relating to the boigeographic region that includes the northern parts of the Old and New Worlds, and that comprises the Nearctic and Palearctic regions." (Source: Sibley)
A single individual organism that is selected to represent the standard for a particular taxon and which serves as the standard for the original name and description of the species.
"The area that an animal uses in the course of its daily activities. Not necessarily defended." (Source: Sibley)
The process by which an organism maintains constant internal conditions in the face of a varying external environment.
Ability to maintain constant body temperature in the face of fluctuating environmental temperature; warm-blooded.
A similarity in traits that reflects descent from a common ancestor and which by inference was also present in that common ancestor. A shared character that is due to common hereditary.
"Bird whose nest receives eggs laid by brood parasites. The hosts then provide parental care to the unrelated young that hatch from the parasitic egg, often to the detriment of their own young." (Source: Sibley)
Fine particles of organic detritis in soil.
"A collective term for the bones of the tongue and associated connective tissues, found in the upper throat." (Source: Sibley)
The innermost layer of a snail's shell, closest to the snail's body.
A diploid organism is hemizygous for a particular gene when only one allele for the gene is present.
Habitat destruction is the process by which natural habitat is damaged or destroyed to such an extent that it no longer is capable of supporting the species and ecological communities that naturally occur there.