David Beaune

10 Questions 16 Answers 0 Followers

Questions related from David Beaune

Any example of amphibian extinction due to road mortality?

Hi all, do you know a local example of common toad (Bufo bufo) or fire salamander (Salamandra salamandra) population extinction (or close to extinction) probably due to road mortality ? so far I...

08 May 2018 4,763 3 View

Do you know demographic parameters for Ptilinopus sp. ?

Dear Fruit-dove biologists, I try to gather data for a Population Viability Analysis of Ptilinopus coralensis. Do you have such data: maximum age reproduction, sexual maturity, mortality %, etc....

18 October 2017 6,897 1 View

Do you know how far can travel an ant?

In order to treat a Wasmannia auropunctata (little fire ant) megacolony in Tahiti, we try to figure out the maximal travel distance that a worker can do. Do you have an idea. Nothing in our review...

08 August 2017 6,132 2 View

Any recommandation for petrels' artificial burrows ?

Do you have recommendations of artificial burrows for these seabirds, that you experienced: Polynesian Storm-petrel: Nesofregetta fuliginosaHerald Petrel: Pterodroma heraldicaMurphy’s Petrel:...

18 March 2017 4,544 2 View

Do you have recommandation to activate Rhus tahitensis germination?

We try to produce some plant such as Rhus tahitensis for conservation purposes. However this species doesn't germinate in standard conditions. We try Sodium hydroxide bath with different treatment...

23 December 2016 4,366 4 View

Does anyone know a formula for pH estimation from rising level of CO2 (ppm)?

Let's say you have a waterhole with pH=7 at 400 ppm of CO2 (atmospheric). I try to find a formula for the estimation of the new pH at rising CO2 level such as 600 or 800 ppm. Do you know such a...

02 December 2015 2,314 7 View

Do you have any idea for alien fish eradication (Lepomis gibbosus, pumpkinseed sunfish)?

We tried many unsuccessful techniques to remove alien pumbkinseed fishes from our places. Maybe wrongly, we used net, electrical fishing, hooks. The only success was the heavy technique of drying...

09 October 2015 7,382 14 View

Can CO2 increase affect lake and pond acidification?

Ocean acidification due to CO2 increase affect bio calcification. We can suppose that the same effect can be found in fresh water. However I did not found any research about the effect of CO2 on...

02 October 2015 6,833 8 View

Do you know NGOs doing conservation actions needing paid solidarity corps servants ?

Hi, I coordinate the sending of PAID solidarity corps servants by French government for NGO doing direct action for conservation into the world. The servant (often with M.Sc in science), are paid...

01 January 1970 7,703 7 View

Bug Hotel = ecological efficiency in Insect Conservation ?

I foraged about Bug Hotel efficiency for insect conservation as it seem to be consensual among gardeners, teachers and other people who want to quickly build something visible for local...

01 January 1970 5,195 9 View