Dendroaspis jamesoni
Silhouette: SeismicShrimp · PhyloPic
In 3 days ~70% in a week ~90%
Jameson's mamba (Dendroaspis jamesoni) is a species of highly venomous snake in the family Elapidae. The species is native to equatorial Africa. A member of the mamba genus, Dendroaspis, it is slender with dull green upper parts and cream underparts and generally ranges from 1.5 to 2.2 m (4.9 to 7.2 ft) in total length. Described by Scottish naturalist Thomas Traill in 1843, it has two recognised subspecies. The nominate subspecies is found in central and western sub-Saharan Africa, and the eastern black-tailed subspecies is found eastern sub-Saharan Africa, mainly western Kenya.
Predominantly arboreal, Jameson's mamba preys mainly on birds and mammals. Its venom consists of both neurotoxins and cardiotoxins. Symptoms of envenomation in humans include pain and swelling at the bite site, followed by swelling, chills, sweating, abdominal pain and vomiting, with subsequent slurred speech, difficulty breathing and paralysis. Fatalities have been recorded within three to four hours of being bitten. The venom of the eastern subspecies is around twice as potent as that of the nominate subspecies.
Jameson's mamba was first described as Elaps jamesoni in 1843 by... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lagos | 🇳🇬 Nigeria |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Abilene Zoological Gardens | 🇺🇸 United States | |
| 2 | Johannesburg Zoo | 🇿🇦 South Africa | |
| 3 | Cameron Park Zoo | 🇺🇸 United States | |
| 4 | The Abilene Zoo | 🇺🇸 United States | |
| 5 | Reptile Gardens | 🇺🇸 United States |
Possible
About 30% of wildlife watchers report a Jameson's Mamba sighting in Lagos on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 4th most-seen of the 8 reptiles we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
January and November
In those months about 50% of wildlife watchers report a Jameson's Mamba in Lagos on a given day, against under 5% in March–April and June–July, the lowest months. Those are among Lagos's driest months, with about 50 mm of rain a month against 250 mm in September.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Jameson's Mamba sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Lagos, in our data
Lagos is the only city on Wallace's Line with enough records to rate Jameson's Mamba sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Jameson's Mamba is recorded against all the reptiles logged in Lagos (12 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
