uses touch to communicate
the compound body sections of an arthropod resulting from embryonic fusion of two or more segments. Singular is tagma. Having three tagmata or divisions of the body (head, thorax and abdomen) is a synapomorphy of the Insecta.
the functional specialization of segments of the body in metamerically segmented animals, resulting of a subdivision of the body into distinct regions (tagmata).
Coniferous or boreal forest, located in a band across northern North America, Europe, and Asia. This terrestrial biome also occurs at high elevations. Long, cold winters and short, wet summers. Few species of trees are present; these are primarily conifers that grow in dense stands with little undergrowth. Some deciduous trees also may be present.
Rock debris at the base of a cliff.
A particular group of organisms of any taxonomic rank. For example, a phylum, a genus, or a species. Plural is taxa.
Referring to the science of hierarchically classifying animals by groups (e.g. genus and species) which share common features and are thought to have a common descent.
Body covering that is distinct from epithelium.
that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle).
An aquatic biome including the ocean bottom in coastal areas of temperate regions, to about 1000 m depth.
Forests occuring at temperate latitudes (>23.5° N or S latitude). This terrestrial biome is characterized by moderate to large seasonal changes in temperature; rainfall, however, is usually more evenly distributed. Leaves of deciduous trees drop during autumn and winter. Temperate rainforests may experience less seasonal change in temperature.
A terrestrial biome found in temperate latitudes (>23.5° N or S latitude). Vegetation is made up mostly of grasses, the height and species diversity of which depend largely on the amount of moisture available. Fire and grazing are important in the long-term maintenance of grasslands.
A 8-24 km (5-15 mile) wide belt of swampy grass jungle generally between the Himalayan foothills and the plains of India. It extends from northeast Uttar Pradesh (India) in the east, through southern Nepal and northwest Bengal (India) to northwest Assam (India) and adjacent parts of extreme southern Bhutan.
Living on the ground.
living on or in the soil; used of an organism that spends most of its active life on the ground.
defends an area within the home range, occupied by a single animals or group of animals of the same species and held through overt defense, display, or advertisement
An exclusive area maintained through overt defense or advertisement; the part of the home range of an animal that is protected, by fighting or aggressive gestures, from others of its own kind, during some phase of its life.
a shell or hardened outer covering. The hardened skeleton of echinoderms (Phylum Echinodermata, sea stars, sea urchins, sea cucumbers) is called a test.
an anti-predator adaptation in which animals either become temporarily immobile or pretend to be dead so deter predators.
The portion of the body between the head and abdomen of certain species that bears whatever legs and wings are present.
The term is used in the 1994 IUCN Red List of Threatened Animals to refer collectively to species categorized as Endangered (E), Vulnerable (V), Rare (R), Indeterminate (I), or Insufficiently Known (K) and in the 1996 IUCN Red List of Threatened Animals to refer collectively to species categorized as Critically Endangered (CR), Endangered (EN), or Vulnerable (VU).
a dormant, inactive state.
Twisting of the body during development so that the posterior of the body takes a anterior position over the head. Synapomorphy of the Gastropoda.
a poisonous substance, usually a protein, that is produced by living cells or organisms and causes harm or disease when introduced into the body tissues of other organisms.
A system of tubes that allow air to permeate the body of invertebrates. Trachea (singular). Synapomorphy of the Myriopoda+Insecta, convergently found in Onychophora.
Coelom pouches out from primitive gut to form three coelomic cavities. Synapomorphy of the Deuterostomia, convergent in the Lophophorates.
a free-swimming marine larva characteristic of most molluscs, certain ectoprocts, brachiopods, and marine worms. This larva locomotes using a preoral circlet of cilia and sometimes a secondary circlet behind the mouth. Synapomorphy of the Trochozoa
the region of the earth that surrounds the equator, from 23.5 degrees north to 23.5 degrees south.
An aquatic biome including the ocean bottom in coastal areas of tropical regions, to about 1000 m depth.
A terrestrial biome similar to tropical rainforest and found at the same latitudes, but rainy and dry seasons are more distinct and the total amount of rainfall is usually less. Most trees are deciduous and drop their leaves during the dry season. Thorny vegetation is sometimes prominent.
A terrestrial biome found within 23.5? of the equator in areas where rainfall is abundant (more than 250 cm/year) and the dry season, if any, is brief. Forests are very diverse floristically and structurally; trees sometimes reach great heights. Most trees are evergreen; deciduous species, if present, do not all lose their leaves at the same time of year.
A terrestrial biome. Savannas are grasslands with scattered individual trees that do not form a closed canopy. Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia.
A terrestrial biome. Savannas are grasslands with scattered individual trees that do not form a closed canopy. Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia.
A grassland with scattered trees or scattered clumps of trees, a type of community intermediate between grassland and forest. See also Tropical savanna and grassland biome.
A terrestrial biome found in temperate latitudes (>23.5° N or S latitude). Vegetation is made up mostly of grasses, the height and species diversity of which depend largely on the amount of moisture available. Fire and grazing are important in the long-term maintenance of grasslands.
A terrestrial biome similar to tropical deciduous forest, but most trees are small, the dry season is prolonged, and many plant species bear thorns.
A terrestrial biome with low, shrubby or mat-like vegetation found at extremely high latitudes or elevations, near the limit of plant growth. Soils usually subject to permafrost. Plant diversity is typically low and the growing season is short.
The locality from which a species or subspecies was first described.