* Spotted Salamander ( Ambystoma maculatum ) T

The Spotted Salamander or Yellow-spotted Salamander ( Ambystoma maculatum ) is a mole salamander common in the eastern United States and Canada.

* Ambystoma maculatum at CalPhotos

* Ambystoma maculatum: Information at ADW

* Yellow-spotted Salamander ( Ambystoma maculatum ), Natural Resources Canada

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pt: Ambystoma maculatum

* White-spotted Salamander ( P. punctatus ), not to be confused with the Spotted Salamander, Ambystoma maculatum

spotted salamander ( Ambystoma maculatum ).

Three species of salamander, the Jefferson salamander ( Ambystoma jeffersonium ), blue-spotted salamander ( Ambystoma laterale ), and spotted salamander ( Ambystoma maculatum ), are state-listed special concern animals.

The group has become famous due to the presence of the Axolotl ( Ambystoma mexicanum ), widely used in research, and the Tiger Salamander ( Ambystoma tigrinum, Ambystoma mavortium ) which is the official amphibian of many states, and often sold as a pet.

In spite of the historically few researchers studying limb regeneration, remarkable progress has been made recently in establishing the neotenous amphibian the axolotl ( Ambystoma mexicanum ) as a model genetic organism.

An NIH-funded NCRR grant has led to the establishment of the Ambystoma EST database, the Salamander Genome Project ( SGP ) that has led to the creation of the first amphibian gene map and several annotated molecular data bases, and the creation of the research community web portal.

In Rosenzweig ’ s book he uses the example of a rancher in Arizona who intentionally deepened his cattle ponds in order to save a population of threatened leopard frogs ( Rana chiricahuensis ), with no detriment to the use of those tanks for cattle, and a similar situation has occurred with the vulnerable California Tiger Salamander ( Ambystoma californiense ) in the Central Valley of California.

Experimental exposure to Ribeiroia ondatrae cercariae has been shown to cause limb malformations in various frog, toad and salamander species, including Pseudacris regilla, Anaxyrus boreas, Lithobates pipiens, A. americanus, Ambystoma macrodactylum, L. clamitans and L. sylvatica.

A number of rare and endangered animals are typical of this habitat including Red-cockaded Woodpeckers ( Picoides borealis ), Gopher Tortoises ( Gopherus polyphemus ), Frosted Flatwoods Salamanders ( Ambystoma cingulatum ), and Striped newts ( Notophthalmus perstriatus ).

For example, the sister taxon to Ambystoma macrodactylum is Ambystoma laterale, meaning they share a single common ancestor and are each other's closest living relatives.

Some members of the genera Ambystoma and Dicamptodon have larvae that never fully develop into the adult form but this varies with species and with populations.

The northwestern salamander ( Ambystoma gracile ) is one of these and, depending on environmental factors, either remains permanently in the larval state, a condition known as neoteny, or transforms into an adult.

The tiger salamander ( Ambystoma tigrinum ) also sometimes behaves in this way and may grow particularly large in the process.

The tiger salamander ( Ambystoma tigrinum ) is typical of the frogs and salamanders that hide under cover ready to ambush unwary invertebrates.

They do not extend north of the Arctic tree line, with the northernmost species, Salamandrella keyserlingii occurring in the Siberian larch forests of Sakha and of the most northerly species in North America, Ambystoma laterale reaching no further than Labrador and Taricha granulosa not beyond the Alaska Panhandle.

Nāhuatl āxōlōtl ( singular ) or āxōlōmeh ( plural ) " water monster "), Ambystoma mexicanum, is a neotenic salamander, closely related to the Tiger Salamander.

Axolotls should not be confused with waterdogs, the larval stage of the closely related Tiger Salamanders ( Ambystoma tigrinum and Ambystoma mavortium ), which are widespread in much of North America and also occasionally become neotenic, nor with mudpuppies ( Necturus spp.

Axolotls are members of the Ambystoma tigrinum ( Tiger salamander ) complex, along with all other Mexican species of Ambystoma.

The mole salamanders ( genus Ambystoma ) are a group of salamanders endemic to North America, the only genus in the family Ambystomatidae.

The nuclear DNA of the unisexuals generally comprises genomes from up to five species: the Blue-spotted Salamander ( Ambystoma laterale ), Jefferson Salamander ( A. jeffersonianum ), Smallmouth Salamander ( A. texanum ), Streamside Salamander ( A. barbouri ), and Tiger Salamander ( A. tigrinum ), denoted respectively as L, J, T, B, and Ti.

Phylogenetic tree showing relations among Ambystoma species and outgroups.

However, cladistic analysis of the mole salamanders found that the existence of Rhyacosiredon makes Ambystoma paraphyletic, since the species are more closely related to some Ambystoma species than those species are to others in Ambystoma.

Conium maculatum has been used as a sedative and in treatments for arthritis and asthma in addition to its most famous use: as a “ humane ” method of killing criminals and philosophers.

Agonopterix ulicetella, a native of Europe, has been introduced to New Zealand and Hawaii in an attempt to control the European Gorse ( Ulex europaeus ), and the Defoliating Hemlock Moth ( Agonopterix alstroemeriana ) has been used against Conium maculatum poison hemlock in the USA.

C. maculatum is known by several common names.

When the leaves of ramsons and Arum maculatum first sprout they look similar, however unfolded Arum maculatum leaves have irregular edges and many deep veins while ramsons leaves are convex with a single main vein.

When they are poisoned by C. maculatum during the fetus's organ formation period, the offspring is born with malformations, mainly palatoschisis and multiple congenital contractures ( MCC ; frequently described as arthrogryposis ).

), celery ( Apium graveolens ), arracacha ( Arracacia xanthorrhiza ), poison hemlock ( Conium maculatum ), sea holly ( Eryngium spp.

** Spotted darter, Etheostoma maculatum.

File: wildgeranium. jpg | Geranium maculatum

Image: Arum maculatum. jpeg | Arum maculatum ( spadix )

* Hieracium maculatum Sm.

* Zygopetalum maculatum Spotted Zygopetalum ( Peru to E. Brazil ).

Eggs of A. maculatum can have a symbiotic relationship with a green alga, Oophila amblystomatis.

Leaves and Inflorescence of the Arum maculatum, 2.

Other Lepidoptera species whose larvae sometimes feed on Hypericum include Common Emerald, The Engrailed ( recorded on Imperforate St. John's-wort, H. maculatum ), Grey Pug and Setaceous Hebrew Character.

Ramsons leaves are easily mistaken for lily of the valley, sometimes also those of Colchicum autumnale and Arum maculatum.

Conium ( or ) is a genus of two species of highly poisonous perennial herbaceous flowering plants in the family Apiaceae, native to Europe and the Mediterranean region as Conium maculatum, and to southern Africa as Conium chaerophylloides.

C. maculatum is native in temperate regions of Europe, West Asia, as well as North Africa.