David BeauneUniversity of Burgundy | UB · Laboratoire Biogéosciences
David Beaune
PhD
Various conservation projects for actions
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70
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Introduction
Admire, understand, love and protect
Publications
Publications (70)
In an evergreen lowland rain forest of the Cuvette Centrale, DR Congo, at the LuiKotale Max-Planck research site, forest elephants (Loxodonta cyclotis) are close to extinction. Between January 2009 and June 2011 we investigated the influence of elephant decline on sustainability of elephant-dispersed tree populations. For this, we explored how tree...
Seed dispersal mode of plants and primary interactions with animals are studied in the evergreen Afrotropical forest of LuiKotale, at the south-western part of Salonga National Park (DR Congo). We first analysed seed dispersal strategies for (a) the plant species inventoried over a decade at the study site and (b) the tree community in 12 9 1 ha ce...
Survival of Afrotropical primary forests depends not only on habitat protection but also on the protection of animal species such as frugivorous primates, recognized as the most important seed dispersers for many plants. Here we investigate seed-dispersal services by the bonobo (Pan paniscus) in an evergreen lowland tropical rain forest of the Cong...
Many animals that possess a gizzard swallow stones or sandy grit, supposedly to aid in the mechanical breakdown of food. While this has been well documented in the literature, our study is the first to report the presence of stones in the gizzard of king penguin chicks. We found stones, so called ‘gastroliths', in the pyloric region of the gizzard,...
In 2016 a population transfer action is planned in order to increase the decreasing number of ponds with the white-clawed crayfish. This report references and synthesizes the contributions of past studies on the Pinail Nature Reserve related to Austropotamobius pallipes. Existing bibliographic sources are also collected . Studies list the crayfish...
Information on resident and wintering waterbirds in Haiti is particularly scarce, limiting knowledge needed to inform waterbird conservation across the Caribbean. Here, results from a winter census of waterbirds at five major wetland sites in Haiti in 2019 are presented. Overall, 10,265 waterbirds belonging to 34 species and 12 families were counte...
Urban green spaces can contribute to conserve some of the original avian diversity in urbanized landscapes. However, the relative contribution of urban agriculture vs. urban forest remnants to the preservation of the avifauna in large cities, particularly in developing countries in the tropics, remains poorly documented. We assessed bird assemblage...
This study presents examples of successful restoration projects for biodiversity conservation. In West France, the Pinail National Nature Reserve is a protected wetland interspersed with more than 6000 ponds. This wetland is inhabited by 50 species of Odonata and thus is a key biodiversity area for damselflies and dragonflies conservation. In the p...
The Nile tilapia ( Oreochromis niloticus ) was introduced in Southeast Asia, such as in Thailand, in the mid-1960s for aquaculture purposes (Pullin et al. , 1997; De Silva et al. , 2004). The species was later promoted for aquaculture development in the early 1990s in Lao PDR (Garaway et al. , 2000). In Lao People’s Democratic Republic (PDR), like...
The Tahiti monarch is a critically endangered bird species endemic to the island of Tahiti. In 1998, when a conservation program started, its range was restricted to four valleys, with 19 birds living in accessible lower valleys. In one of these valleys, a remote population located upstream of a series of waterfalls was present but, was first prote...
La Renouée du Japon (Reynoutria japonica Houtt., 1777) est considérée comme une Espèce Exotique Envahissante (EEE) en France et en Europe et listée parmi les 100 pires EEE de la planète. Cette plante est présente sur le site Natura 2000 du Val-Suzon, sur les berges, le long du Suzon (8 stations recensées en 2018, ci-dessous). Le travail des Master1...
The life history traits of Hampala macrolepidota, a common freshwater fish species in Southeast Asia that is of interest for fisheries and sport fishing, were estimated for a population from Nam Theun 2 Reservoir in Lao. The exploitation status of this species was also characterized using data from landing. Toluidine-stained transverse section of o...
Les amphibiens représentent deux tiers des animaux écrasés sur la route. Le comportement migratoire des crapauds lors de la reproduction les rend particulièrement vulnérables à cette mortalité routière. Avec 1 500 véhicules/jour, la probabilité d'écrasement d'un crapaud traversant une route départementale est de 40 % et cette mortalité pourrait fai...
Abstract The little fire ant is one of the most virulent exotic invasive species of the world. This social insect, which forms polygy-nous megacolonies, conquests the tropical areas of the globe and nothing seems to stop it. This small ant with the very painful puncture probably arrived at Tahiti in the nineties. This synthesis gathers the principa...
The Nam Theun 2 Reservoir, impounded in 2008 on a tributary of the Mekong (Lao PDR), is one of the largest hydroelectric project in Southeast Asia of the last ten years (lake surface between 86 km² at low level and 489 km² at the highest). Many environmental and social programs were developed in collaboration of local institutions and population si...
Two third of the animal killed on the road are amphibians. The reproductive behavior of the common toad with their prenuptial migration induce a high mortality rate on the road. In the 'Val-Suzon', more than 1.6 km of county road (route départementale (RD7)) split a forest from a stream (the Suzon). This stream is used by toads for local reproducti...
Carbon dioxide released in the atmosphere and dissolved in water leads to acidification. Relatively few studies have focused on fresh waters, where biocalcifying species are more readily impacted by changes in pH. Sensitivity to pH of an endangered calcium-demanding organism, the crayfish Austropotamobius pallipes, was investigated in the Pinail na...
In French Polynesia, only three Ardeidae are present: Cattle Egret (Bubulcus ibis), Tahiti Striated Heron (Butorides striata patruelis) and Eastern Reef-Heron (Egretta sacra), and the last two breed there. The Eastern Reef-Heron is widespread in the Pacific range and its conservation status is least concern. However , the status of the Tahiti Stria...
Human urine is freely available around the world and is composed of nitrogen (N), inorganic
potassium (K), phosphorus (P), and other nutrients directly absorbable by plants. This resource was tested on
several tropical horticultural species and showed rapid positive effect on plants growing. In the nursery: 3
trees and 1 vine species were treated w...
Seedling transfer is commonly used for restoration ecology, however, still many projects do not take into consideration the risk of invasive species contaminants, especially invisible contaminants such as eggs, seeds, spores, mycelium, and small-sized organisms. Here we reviewed literature in order to provide a low cost and simple protocol to avoid...
Cette étude présente la faisabilité de translocation d’une espèce de ptilope sur l’atoll de Anaa pour rétablir la fonctionnalité de dispersion de graines par cet oiseau frugivore. Le ptilope des Tuamotu (Ptilinopus coralensis) qui devait être l’espèce présente dans le passé est à favoriser pour une réintroduction. La population de l’atoll de Niau q...
This technical note for field primatologists demonstrates that behavioral activities are not consistent throughout the day. In LuiKotale (DR Congo), a habituated group of bonobos (Pan paniscus) was continuously followed in 2010 and 2011 (38 and 124 entire days of analyzable data) for comparison of the morning and afternoon activities (mid-day=11:30...
The little fire ant (Wasmannia auropunctata) is one of the worst invasive exotic species of the world. Its pantropical expansion is explosive; the ant has been present in Tahiti for more than 20 years. This study is the first to be carried out in Tahiti to assess its ecological impacts. The ecological richness of three invaded environments located...
The Tahiti monarch (Pomarea nigra) is an endemic flycatcher of Tahiti Island critically endangered with extinction with less than 70 individuals living in 2017. The main threats are the invasive exotic species (IES) which predate them directly (rats, cats, alien birds) or which transforms their habitat (Miconia trees, goats, pigs, etc). The surviva...
Amphibians are a highly endangered taxonomic group, and invasion of alien species in wetland systems has been involved in this decline. The Pinail Nature Reserve, Vienne, France, contains more than 5,000 ponds, many of which are occupied by introduced Pumpkinseed Sunfish (Lepomis gibbosus). We sampled ponds with and without sunfish for amphibian sp...
1 Austropotamobius pallipes is an endangered decapod attracting much attention in freshwater conservation programmes. In some cases population transfers or reintroductions are carried out in lentic ecosystems such as ponds or quarries. Such conservation actions require rapid, low cost and powerful tools to census suitable habitat.
2 Some species of...
This report describes bonobo (Pan paniscus, Hominidae) behavioral flexibility and inter-community differences with high tannin level fruit processing. In fruiting plants, tannin should discourage certain seed dispersers (direct deterrence hypothesis) such as primates. Based on data deriving from five study sites; LuiKotale, Lomako, Wamba, Malebo and M...
In 2017, a project directed by the commune of Gambier aims to restore the island’s ecosystems of Makaroa and Kamaka (south Gambier, French Polynesia) with the transplantation of indigenous flora and the recolonization of the seabirds (funded by the UE programs BEST 2.0). The SOP Manu with the support of Birdlife International installed 61 artificia...
A project lead by the commune des Gambier aims to restore the island ecosystem on Makaroa and Kamaka islands (Gambier, French Polynesia) with plant transplantation and seabirds recolonization (funded by European Union through BEST 2.0). The SOP Manu with Birdlife international support will attempt to attract seabirds such as endangered Polynesian S...
La petite fourmi de feu (Wasmannia auropunctata) a été identifiée à Tahiti en 2004. Depuis, sa progression semble inexorable et des besoins de connaissances écologiques spécifiques à Tahiti sont requis pour une stratégie d’avenir. La SOP Manu qui lutte contre la PFF depuis plusieurs années dans des zones à forts enjeux de conservation (vallées à Mo...
Summary – Effect of grazing on the western green lizard (Lacerta biblineata Daudin, 1802) (Squamata: Lacertidae) in moorlands. The western green lizard populations (Lacerta bilineata Daudin, 1802 ; Squamata: Lacertidae) are locally threatened by habitat loss. What ecological management measures promote the presence of this reptile linked to semi-op...
Résumé
La perche soleil (Lepomis gibbosus (Linnaeus, 1758)) est aujourd’hui la principale menace sur la Réserve naturelle nationale du Pinail. En effet, cette espèce exotique est présente dans environ 600 des 3000 mares permanentes du site où elle provoque parfois des déséquilibres biologiques, notamment en réduisant par sa prédation, les effectifs...
Dans la continuité du rapport de synthèse sur les études des populations d’Austropotamobius pallipes faites à la réserve naturelle nationale (RNN) du Pinail entre 1994 et 2011(Béguier et al., 2016), un nouveau suivi de ces populations a été réalisé cette année. Ce rapport présente les différents résultats obtenus. Ces résultats, en appuie de l’étud...
Le Monarque de Tahiti ou ‘omama’o (Pomarea nigra) est classé en danger critique d’extinction (CR) d’après les critères de la liste rouge de l’UICN. Aujourd'hui Tahiti est envahie par les rats noirs qui dévastent ses nids, des oiseaux introduits qui perturbent sa reproduction, mangent ses poussins voire même les adultes. Des plantes invasives modifi...
Les études de terrains sur les grands singes impliquent parfois un processus d'habituation des primates. Or la pression sans cesse grandissante du braconnage pourrait menacer les communautés de singes habitués à l'homme. Dans cette note, je relate comment un groupe de bonobo (Pan paniscus) habitué à la présence humaine de la station de recherche de...
La Réserve naturelle nationale du Pinail est un observatoire de la biodiversité privilégié de la Vienne (86) avec plus de 2613 espèces inventoriées. Située dans le Châtelleraudais la Réserve est missionnée par la CAPC (Communauté d'Agglomération du Pays Châtelleraudais) pour proposer des stratégies d'études sur l'effet des changements climatiques e...
Résumé
L'azuré des moulières (Maculinea alcon) est un papillon myrmécophile stricte. Ce qui veut dire que la conservation de ce papillon implique la conservation des espèces de fourmis qui sont les nourrices de ses chenilles (Myrmica spp.). Dans la Vienne ce lépidoptère protégé est étudié dans l'unique station régionale où l'espèce est encore prés...
Apes, like many frugivorous animals, are crucial allies for the reproduction of several fruiting tree species. Almost all apes, however, including bonobos
Pan paniscus
, are threatened with extinction. How will this affect tree conservation? How can plants that are adapted to seed dispersal by apes reproduce without their dispersal vectors? At LuiK...
In an Afrotropical forest, we tested the hypothesis that fleshy-fruit plants with interspecific differences in fruit quality and quantity affect ranging behaviour of their seed dispersal vector. If fruiting plants could affect their dispersal vector, the plants also affect their seed dispersal distance and eventually their plant population biology....
L’écologie des forêts d'Afrique tropicale dépend non seulement de la protection des habitats, mais également de la protection des espèces qui la composent telle que les primates frugivores identifiés parmi les disperseurs de graines les plus importants pour de nombreuses plantes. L’étude de la dispersion de graines par des bonobos (Pan paniscus) da...
This is the 124 data of seed transit time collected on the field from free ranging bonobos.
In this experiment, the rodent is attracted by the stick with dung smell while the control stick do not affect the porcupine behavior.
LuiKotale, Salonga NP, DR Congo
Giant pouched rat (cricetomys emini) attracted by bonobo dung containing seeds
This is a nocturnal video from camera trap.
LuiKotale, Salonga NP, DR Congo
75 empirical data on seed dispersal induced by free ranging bonobo
LuiKotale, Salonga NP, DR Congo
Species of the gender Dialium commonly are trees found in Central African rainforests. They produce tasty sugary fruits, feeding numerous frugivores, but are, despite their valuable nutritional value, rarely exploited by humans. A potential reason for this could be the complexity of symbiotic dependence between trees and pollinators, germination ac...
A positive interaction is any interaction between individuals of the same or different species (mutualism) that provides a benefit to both partners such as increased fitness. Here we focus on seed dispersal mutualism between an animal (bonobo, Pan paniscus) and a plant (velvet tamarind trees, Dialium spp.). In the LuiKotale rainforest southwest of...
Bonobos (Pan paniscus) are threatened with extinction. They are the largest primates, and the only apes (except human), of the southern bank of the Congo Basin. Along with chimpanzees, they are our closest living relatives and are studied by anthropologists to include/understand our hominid origins; but what about their functional role in the fores...
Bonobos are our closest living relatives along with chimpanzees. They attract much attention from anthropologists who want to better understand our primate origins and more recently from the public because of their remarkable behavior and matriarchal social system. New published insights from recent years allow us to better know Pan paniscus. This...
Seed dispersal with seed deposited by animal in faeces attracts dung beetles. In the Congo forest of LuiKotale (DRC), granivores such as the giant pouched rat (Cricetomys emini) or porcupine (Atherurus africanus) are attracted to bonobo dung in order to forage for seeds. These nocturnal seed predators are preceded by diurnal dung beetles (Scarabaeo...
Seed dispersal with seed deposited by animal in faeces attracts dung beetles. In the Congo forest of LuiKotale (DRC), granivores such as the giant pouched rat (Cricetomys emini) or porcupine (Atherurus africanus) are attracted to bonobo dung in order to forage for seeds. These nocturnal seed predators are preceded by diurnal dung beetles (Scarabaeo...
In 2007, the Intergovernmental Panel on Climate Change highlighted an
urgent need to assess the responses of marine ecosystems to climate
change. Because they lie in a high-latitude region, the Southern Ocean
ecosystems are expected to be strongly affected by global warming. Using
top predators of this highly productive ocean (such as penguins) as...
A statement of the deforestation in countries hosting apes species is presented, based on the latest data set from the Global Forest Resources Assessment (FRA FAO 2010). The survey shows that all countries hosting apes lose forest area each year, except the Ivory Coast, Gambia, Rwanda and Vietnam. These facts are not new but we can now access the m...
A female bonobo and her daughter eat a monkey (Procolobus tholloni). The bonobo group killed opportunistically the red colobus.
Orientation based on visual cues can be extremely difficult in crowded bird colonies due to the presence of many individuals.
We studied king penguins (Aptenodytes patagonicus) that live in dense colonies and are constantly faced with such problems. Our aims were to describe adult penguin homing
paths on land and to test whether visual cues are imp...
Orientation based on visual cues can be extremely difficult in crowded bird colonies due to the presence of many individuals. We studied king penguins (Aptenodytes patagonicus) that live in dense colonies and are constantly faced with such problems. Our aims were to describe adult penguin homing paths on land and to test whether visual cues are imp...
An investigation of the presence of influenza A virus has been conducted in king penguins (Aptenodytes patagonicus) at the Possession Island in the Crozet Archipelago, Antarctica, using a rapid molecular diagnostic method based on real-time
polymerase chain reaction. No evidence of outbreak or positive viral infection of influenza A virus was found...
The animal-mediated pollination and seed-dispersal mutualisms of Ficus species give them key roles in tropical ecosystems, but may make them vulnerable to habitat fragmentation. The development of highly polymorphic markers is needed to analyse their genetic diversity and investigate the effects of fragmentation on gene flow. Of thirteen microsatel...
Questions
Questions (28)
Do you have documented records of mass sealing in the subantartics? I often ear numbers such as : "5 men killed 1000 elephant seals (Mirounga leonina)) in a week in XXX Island" however I did not find proper sources. Do you have some sources of such records from whalers, sealers (of even with penguins)
Dear shark enthusiasts,
Sharks can live in cold water (such as Greenland shark Somniosus microcephalus) found in 4°C, but there is no sharks in Antarctica. I forage with few success in literature, but are you agree with me: it is not due to physiological constraints but due to the Antarctic Circumpolar Current (ACC) that is an ecological barrier that we found few fish diversity around Antarctica.
Thanks for your lights
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 (480€/months, during 10-12months, get insurance and stipend for the travel).
The NGO provide accommodation and real mission in conservation.
If you know NGO needing free motivated manpower, please contact me.
CONSERVATION in ACTION! =D
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 biodiversity (and indeed positive results are often visible).
However
Do you know any controversies (attract pest, favoring inhabiting predators eating the neighbors species, etc.).
Or no discussion: BUG HOTELS ARE GOOD TOOLS in any cases...?
A possible ecological interaction between bird's-nest fern Asplenium nidus and Ptilinopus sp?
Do you have an idea about possible interaction between those two organisms. It's maybe random but I found a trend of the presence of the fern with the bird... I try to figure out possible interaction with this frugivore bird and this fern... .?
Many experiments started with local plant competition induced to control/remove spots of Japanese Knotweed (Reynoutria japonica, or Fallopia japonica). However I did not find conclusions/publications/reports.
Do you know any cryptic stories or reports with conclusion?
We would try a competition with local Salix spp. in France and avoid repetitive mistakes.
A colony of Black-crowned night herons (Nycticorax nycticorax) was disturbed in 2013. They all moved along a channel in a medium sized town (France), nesting in a line of plane trees (Platanus). The heronery (27-20 pairs) fallen at 16 in 2017 and 9 this year. Do you have any hypotheses explaining this sudden decline ? No special disturbance noticed. The heronery is mixed with a thousand of Corvus frugilegus also nesting in the plane trees (herons taking advantage of the nests and with the rooks' defense). And the rooks are also in decline. I think about an Allee effect, do you know if the species is sensitive to a critical colony size?
Hi all,
In plant conservation, some of the plant species are very hard to multiply from seeds because of complex seed dormancy rules. We aim to reproduce several wild species (including trees and shrubs), do you know a guide/book/website gathering the knowledge about seed dormancy and germination secrets of various species? Thanks
FiSAT II utilizes the standard Windows graphic user interface and attributes (size, police, scale, etc.) seem to be unchangeable. Do you confirm?
I have problem of superimposed values making ugly graph.
Did you experienced such problem?
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 found this paper: Cooke, A. (2011) 'The role of road traffic in the near extinction of Common Toads (Bufo bufo) in Ramsey and Bury', NatCambridgesh, 53, pp. 45-50.