| ichneumon |
The name was used for the "pharaoh's rat", mongoose, or Egyptian mongoose, which attacks snakes; it can also mean "otter". |
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| ichthyologist |
a scientist that studies fish |
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| igneous |
rock of volcanic origin e.g. , dolomite |
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| ileum |
the last, and usually longest, portion of the small intestine. It is found just after the jejunum |
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| illuviation |
the movement of soil material into a horizon |
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| immobilized |
a drugged animal which is unaware of its surroundings; the animal loses consciousness and can be handled easily |
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| immobolizing drugs |
a drug whereby an animal is rendered immobile and unconscious. Used in game capture |
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| immunology |
the study of the immune system and the resistance it presents to infection |
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| imprinting |
when an animal has become fixated onto another organism, with the assumption that the organism is its parent |
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| in-situ |
adj : being in the original position; not having been moved; "the archeologists could date the vase because it was in situ"; "an in-situ investigator" [syn: unmoved] |
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| inbreeding |
breeding, in animals that are closely related genetically. A frequent cause of abnormalities |
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| increaser i |
a grass species that is dominant in poor veld and which increases when a veld is undergrazed. |
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| increaser iia |
a grass species which increasers under conditions of light overgrazing. |
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| increaser iib |
a grass species that increases under conditions of medium overgrazing |
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| increaser iic |
a grass species that increases under conditions of heavy overgrazing |
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| incubation |
the act of keeping eggs warm until they hatch |
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| indicator species |
organisms that live or grow only in specific conditions and environments. They indicate the health of their environment |
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| inflorescence |
the flowering parts of grass plants |
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| infrasound |
ultrasonic made by elephants for communication of long distances |
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| inguinal |
a reference to the groin region, often associated with a gland |
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| inorganic |
of mineral origin, not alive |
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| insecticide |
an artificial chemical for killing insects |
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| insectivore |
animal that subsists entirely or mainly on insects |
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| insectivorous |
subsisting entirely or mainly on insects |
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| insolation |
incoming solar radiation / an amount of energy received from the sun |
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| integument |
Outermost body layer of an animal, comprising a layer of living cells( epidermis),and a superficial protective coat, in arthropods a secreted hardened cuticle, in vertebrates,dead keratinized cells. |
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| interspecific |
between different individuals/ species/ groups / communities / etc |
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| intertidal |
the region between the high tide mark and the low tide mark, also known as the littoral zone. |
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| intertidal zone |
The ecological zone between high tide and low tide of oceans. |
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| intraspecific |
between the same individuals /species / groups / communities / etc |
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| invaders |
alien grass species |
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| invasive plants |
Plants that are usually not endemic to an area, and have the ability to outcompete local resident species |
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| invertebrates |
an animal without a back-bone |
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| ionophore |
an antibiotic used to improve growth in livestock and prevent coccidiosis |
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| iron formation |
Sedimentary rock consisting
mainly of iron oxide minerals |
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| ischium |
a skeletal structure on the hindquaters of ungulates |
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| island arc |
Arc of volcanic islands (e.g. Japanese
archipelago, Aleutian Islands) formed where
one plate containing oceanic crust is subducted beneath another such plate |
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| isoptera |
the order which includes termites |
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| isostasy |
Balance of all large portions of the Earth’s
crust as if floating on a denser, plastic sub-layer |
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| isotope |
Atoms (of the same element) that have different numbers of neutrons but the same number of protons, thus isotopes have the same atomic number but differ in atomic mass. |
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| ixodid |
a group of tick species representing those with hard or shield-like bodies |
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