Arachnida
EOL Text
Females generally larger than males and this can be pronounced; Sexual Dimorphism often also in shape and color; male spiders have specialized intromittent appendages (pedipalps).
| License | http://creativecommons.org/publicdomain/zero/1.0/ |
| Rights holder/Author | Fairbairn, 2013 |
| Source | http://datadryad.org/resource/doi:10.5061/dryad.n48cm |
Arachnida (arachnids (unspec.)) is prey of:
Geothlypis trichas
Myiarchus
Baeolophus bicolor
Sitta carolinensis
Vireo olivaceus
Based on studies in:
USA: Illinois (Forest)
This list may not be complete but is based on published studies.
- A. C. Twomey, The bird population of an elm-maple forest with special reference to aspection, territorialism, and coactions, Ecol. Monogr. 15(2):175-205, from p. 202 (1945).
| License | http://creativecommons.org/licenses/by/3.0/ |
| Rights holder/Author | Cynthia Sims Parr, Joel Sachs, SPIRE |
| Source | http://spire.umbc.edu/fwc/ |
Arachnida (arachnids (unspec.)) preys on:
Diptera
Phaenicia eximia
Hemilucilia segmentaria
Cochliomyia macellaria
Paracoenia turbida
Lamproscatella dichaeta
Microcoelepis
Chironomidae
Amphipoda
Tipulidae
Based on studies in:
USA: Illinois (Forest)
Costa Rica (Carrion substrate)
USA (Temporary pool)
This list may not be complete but is based on published studies.
- A. C. Twomey, The bird population of an elm-maple forest with special reference to aspection, territorialism, and coactions, Ecol. Monogr. 15(2):175-205, from p. 202 (1945).
- N. C. Collins, R. Mitchell and R. G. Wiegert, 1976. Functional analysis of a thermal spring ecosystem, with an evaluation of the role of consumers. Ecology 57:1221-1232, from p. 1222.
- L. F. Jiron and V. M. Cartin, 1981. Insect succession in the decomposition of a mammal in Costa Rica. J. New York Entomol. Soc. 89:158-165, from p. 163.
| License | http://creativecommons.org/licenses/by/3.0/ |
| Rights holder/Author | Cynthia Sims Parr, Joel Sachs, SPIRE |
| Source | http://spire.umbc.edu/fwc/ |
Barcode of Life Data Systems (BOLD) Stats
| Specimen Records: | 148,770 | Public Records: | 90,251 |
| Specimens with Sequences: | 103,813 | Public Species: | 2,926 |
| Specimens with Barcodes: | 97,220 | Public BINs: | 12,009 |
| Species: | 7,225 | ||
| Species With Barcodes: | 5,779 | ||
Collection Sites: world map showing specimen collection locations for Arachnida
Arachnids are a class (Arachnida) of joint-legged invertebrate animals in the subphylum Chelicerata. All arachnids have eight legs, although the front pair of legs in some species has converted to a sensory function, while in other species, different appendages can grow large enough to take on the appearance of extra pairs of legs. The term is derived from the Greek word ἀράχνη (aráchnē), meaning "spider" (Oxford English Dictionary).
Almost all extant arachnids are terrestrial. However, some inhabit freshwater environments and, with the exception of the pelagic zone, marine environments as well. They comprise over 100,000 named species, including spiders, scorpions, harvestmen, ticks, mites and Solifugae (Cracraft & Donoghue, 2004).
- "Arachnid". Oxford English Dictionary (2nd ed.). 1989.
- Joel Cracraft & Michael Donoghue, ed. (2004). Assembling the Tree of Life. Oxford University Press. p. 297.
| License | http://creativecommons.org/licenses/by-sa/3.0/ |
| Rights holder/Author | Text from Wikipedia |
| Source | https://en.wikipedia.org/w/index.php?title=Arachnid&oldid=613507799 |