Expert(s). Expert: Brian Kensley & Marilyn Schotte. Notes: National Museum of Natural History. Reference for: Armadillidium vulgare. Other Source(s). Source. Biology. Woodlice feed on dead organic matter, which they detect by means of taste and smell (2). During the breeding season, reproductive females develop a . Armadillidium sp.? – Armadillidium vulgare Pillbug caught in a spider web – Armadillidium vulgare Terrestrial crustacean – probably Porcellio scaber.

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Finally, there are 2 to 4 days of ecdysis. Meeting with Their Invaders, Wolbachia.

Skip to main content. The pillbug cannot move or eat, and is vulnerable to predation and dessication.

The average reduction in water loss was Although the specimens of A. Isopod heads have unstalked eyes, unlike the compound eyes of most crustaceans, as well as one pair of antennae that bear setae.

Armadillidium vulgare may reach a length of 18 millimetres 0. Evolutionary Biology of Land Isopods. Terrestrial isopods rely instead on chemoreceptors to locate suitable shelter and passively aggregate with members of their species Armadillidiuj Aggregate pheromone concentration varies with humidity, but it is always highest during mating seasons.

While the mancas remain in the marsupium, the mother remains in or close to her natal burrow. Before experimentation, individuals were selected at random from the population and placed in individual wells of a microplate containing moist soil.


The families Oniscidae, Porcellionidae, and Armadillidiidae are found in progressively drier areas and show increasing morphological specialization Cloudsley-Thompson ; Wright and Ting In other projects Wikimedia Commons Wikispecies. Given these considerations, the measurements of CO 2 release should provide an accurate estimate of metabolic rates. Armadillidiuk with damage to green leaves by Armadillidium vulgare Latreille include Picris echioides and Silybum marianum in the grasslands of California Paris Initial experiments revealed that the additional setup time and handling stress, inherent in armadillidiim application of rubber bands, significantly affected total water loss in the armadillidiuum experimental group.

Some data suggest that almost ten armadillidlum of the pill-bug’s diet comes from self-coprophagy, which recirculates microbes and nutrients that were not fully processed during original digestion. The additional mass loss during handling would therefore tend to overestimate water loss from the conglobated animals.

Armadillidium species and Eluma caelata are readily recognised in the field by their truncated ‘square’ uropods that end flush with the body and their abilty to roll into a ball.

ADW: Armadillidium vulgare: INFORMATION

Nearctic living in the Nearctic biogeographic province, the northern part of the New World. An important factor is the physical covering of the pleopods. During the reproductive cycle, the females undergo a molt which changes the structure of their genetalia and creates the marsupium important to the reproductive process mentioned above Suzuki and Ziegler Forward movement can be vilgare from weak ground vibrations or forces that reach the body. During the day they can be found in dark, humid places such as under fallen leaves, rocks, or logs.


However, males are more attracted to females with prominent calcium plates, which correspond to their higher reproductive receptivity period.

Common name Common Pill Woodlouse.

Though we edit our accounts for accuracy, we cannot guarantee all vulgar in those accounts. Conglobation was achieved by wrapping specimens in soft 8 mm orthodontic rubber bands GAC International, Canada that were knotted centrally to reduce their diameter Figure 1. Ecological Society of America.


Pigmentation in Armadillidium vulgare is determined by two distinct pigments in the integument outer shell: Transition from water to land in isopod vulgate. Because of their unusual yet non-threatening appearance, some Armadillidium vulgare are kept as pets in areas throughout the U. In addition, experiments that examine water-loss measurements during spontaneous, rather than forced, conglobation are needed. In drier environments, they spend more time sheltering as opposed to feeding or other more energy-demanding activities.

Each vial was equipped with a centrally located foam plug which separated the isopod from the salt solution. Entomology Experimental and Applied. Lipid melting and cuticular permeability: This reduction in the host’s immune protection is lethal, and after injections of P.

This suggested that conglobation may also serve a water-conservation function.