Dear Rafael,

I remind one story about a cat that killed a passerine non-flying bird from new-Zealand Archipelago, and what I find:

https://en.wikipedia.org/wiki/Stephens_Island_wren

and some papers. One is a book in Google, with lacks but have no better. May be smbd from ornitologists will help.

May be more examples from some local or limited areas like caves, springs etc.

Andrey

Thank Andrey, I had those cases and references in my data. Sthephen island case has been discussed.

Sorry but what is SMBD from ornithologist...

Dear Rafael! I suppose this one paper could help you.

Dear Rafael. Perhaps this one is useful for you?

https://www.researchgate.net/publication/231843867_Extirpation_of_an_insular_subspecies_by_a_single_introduced_cat_The_case_of_the_endemic_deer_mouse_Peromyscus_guardia_on_Estanque_Island_Mexico

Article Extirpation of an insular subspecies by a single introduced ...

Dear Charmaine

Thank you, yes I know the paper and I have in my data

Dear Rafael,

I don't know if this quite counts, as the invasive species did not achieve extirpation of the native and it's not clear how many individuals were involved. I suspect it was not many though:

http://thebark.com/content/maremma-sheepdogs-keep-watch-over-little-penguins

Best, Tristan

Dear Tristan and Andrew, thank you. This news and paper are new for me. I will check

PNAS 2015 112 (15) 4531-4540

PNAS 2015 112 (15) 4514-4515

On Mauritius Island the introduced cats made pink pigeons almost extict and an introduced small tree with tasty fruits (Psidium cattleyanum) took over the canopy of natural rainforest with the help of introduced monkeys, which spread the seads of the Psidium by their excrements.

Brown tree snakes on Guam have driven almost all native vertebrates there to functional extinction, especially the island's bird fauna.

Aside from predation, mosquitoes have severely impacted many Hawaiian bird species by infecting them with avian malaria.

Burmese pythons in Florida have been implicated in severe declines of native wildlife, but no documented extirpations yet.  But that might be an interesting continental example to contrast to your island cases.  http://www.pnas.org/content/109/7/2418.full

It seems islands and domesticated carnivores dominate the extinction scene. After all, hunting and farming Homo sapiens seems the main exterminator.

Interesting to note that the major efforts for control of invasive plants globally seem not to be motivated by species extinction.

Article Efficacy of Chromolaena odorata control in a South African c...

Chapter Impact of shrub encroachment on the understory vegetation di...

Dear All, thank you for your comments and examples. However, remember that I am looking for information related with one single individual of invasive species. The effect of one exotic animal over a native population. EX. how many pray could consume one cat in one day? Cases of the effect of one cat  or one carnivore in a island  or other places. How many snails could consume one rat in a day....etc. Extremes cases of predation detecte by stomach content, etc.

Hola Rafael

I hope this paper is of use:

The tale of the lighthouse-keeper’s cat: Discovery and extinction of the Stephens Island wren (Traversia lyalli)     

("The Stephens Island wren Traversia lyalli is widely quoted as having been discovered and promptly exterminated from its only locality, Stephens Island, New Zealand, by a single lighthouse keeper’s cat.")

The paper problematises the recording of the case but hopefully will still be of some value.

http://notornis.osnz.org.nz/system/files/Notornis_51_4_193.pdf

Sorry about that repeat reference!

Rafael,

We have individual cats causing excessive loss of reintroduced (and probably extant) wildlife:

Moseby, K. E., Peacock, D. E. and Read, J. L. (2015). Catastrophic cat predation: a call for predator profiling in wildlife protection programs. Biological Conservation 191, 331-340.

Our paper discusses other data, so check out those references as well.

Cheers

Dave

A great example is the introduction of the brown tree snake on Guam which resulted in extinction of multiple species of birds on Guam. See: https://www.iucn.org/theme/species/our-work/invasive-species

Dear Elliot and David, thank yuo for the papers.

A population of kiwis evidently was wiped out by a single dog. In journal Notornis back in the 1970's or 80's.

http://notornis.osnz.org.nz/system/files/Notornis_35_3.pdf#page=33

Hi Paul, Thank you, I have this important paper in my database

Hi.

I know a case of one or two cats which caused the loss of a small colony of Bulwer's Petrel (Bulweria bulwerii) in a locality of El Hierro, Canary Islands, but this seabird is present in other areas of this island (some of them not accesible to feral cats), so it's no locally extinct or extirpated there. In any case, sometimes the effects of a single cat (domesticated or feral) on seabird colonies can be dramatic, as occurs in many islands around the world.

Best regards. 

Dear Ruben, there are published data o report of the situation in El Hierro? those types of  cases are importnat to me

Well, there is some information on the subject in the attached pdf file, which is the chapter of a book published in 2007. 

Best regards. 

Yes.  The top predator and the cause of many extinctions is us.  

HUMANS, Homo sapiens, has caused the extirpation of MANY species. No one ever considers HUMANS as an invasive species. 

A more recent & well documented invasion took place on Guam and other islands throughout the South Pacific.

The Brown Tree Snake (Boiga irregularis) is known to have caused the extinction of many endemic island birds species and subspecies.

The endemic Guam Flycatcher (endemic to species level only found on Guam) was last seen on Guam in 1984.

Two other endemic species: Micronesian Kingfisher and Guam Rail are extinct in the wild. Today they only survive in captivity.  

Several endemic sub-species have also been extirpated from the island:

Bridled White-eye - last seen on the island in 1983

Mariana Fruit Dove - last seen on the island in 1985

Micronesian Honeyeater - last seen in 1986

Nightingale Reed-warbler - last seen in 1981

Rufous Fantail - last seen in 1984

White-throated Ground Dove - last seen in 1987

But don't blame the snake entirely. It was transported to GUAM by HUMANS. Below is a link to many articles and books about the Brown Tree Snake and its devastating introduction to Guam and other Pacific Islands.  

https://scholar.google.com/scholar?q=Boiga+irregularis+literature+extinction&hl=en&as_sdt=0&as_vis=1&oi=scholart&sa=X&ved=0ahUKEwitzdPnh4zRAhXjgVQKHckgAKwQgQMIGDAA

Thank you Sharon for your comments. All those cases are important too but I m searching about only one individual like a cat or other predator in a island or places.to know the effect of a single individual.  It are the extreme case. Some time are not easy detected or some time are modified by the people with historic legends...  

Check out the story of Tibbles, a lighthouse keeper's pet cat, and New Zealand's Stephens Island Wren. 

There is some controversy as to whether Tibbles alone killed all the wrens.  It, or it's progeny, or more cats introduced to the island definitely delivered the final fatal blow to this species. 

Hi Sharon, yes I know the history, thank you