| Titre : | Biological Conservation 141(5) - MAY 2008 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
M. A. Rendon, Auteur ;
A. J. Green, Auteur ;
E. Aquilera, Auteur ;
P. Almaraz, Auteur
The Guadalquivir Marshes or Donana wetland complex is the most important wintering site for migratory waterbirds in the Mediterranean region. However, there is a lack of previous information on the status of different species in this area. Using[...]
Article
Lisa J. Cocking, Auteur ;
Michael C. Double, Auteur ;
Peter J. Milburn, Auteur ;
Vittorio E. Brando, Auteur
The application of blue-dye to fishing baits is a seabird bycatch mitigation technique used in some pelagic longline fisheries that is thought to make the baits less visible and hence less attractive to seabirds. We tested this assumption in two[...]
Article
Tiger Sangay, Auteur ;
Karl Vernes, Auteur
We examined predation activity throughout Bhutan by tiger (Panthera tigris), common leopard (Panthera pardus), snow leopard (Uncia uncia) and Himalayan black bear (Ursus thibetanus) on a variety of livestock types using data gathered over the fi[...]
Article
E. Martin Osterling, Auteur ;
Larry A. Greenberg, Auteur ;
Bjorn L. Arvidsson, Auteur
We investigated relationships of biotic and abiotic factors to recruitment patterns of the endangered freshwater pearl mussel (Margaritifera margaritifera) in 10 Swedish streams. We found that the maximum proportion of gravid mussels did not dif[...]
Article
Raimo Virkkala, Auteur ;
Risto K. Heikkinen, Auteur ;
Niko Leikola, Auteur ;
Miska Luoto, Auteur
Climate change is projected to be particularly strong in the northern latitudes. Thus, boreal or arctic species are especially susceptible to the effects of climate warming. In this work we forecasted changes in the distributions of 27 northern [...]
Article
Derric N. Pennington, Auteur ;
James Hansel, Auteur ;
Robert B. Blair, Auteur
Urbanization changes bird community structure during the breeding season but little is known about its effects on migrating birds. We examined patterns of habitat use by birds at the local and landscape level during 2002 spring migration at 71 r[...]
Article
Paula Lara-Ruiz, Auteur ;
Adriano G. Chiarello, Auteur ;
Fabricio R. Santos, Auteur
The maned sloth (Bradypus torquatus) is an endangered species endemic to the Atlantic Forest of eastern Brazil. This biome has been reduced to 7% of its original extent and the remaining forests are highly fragmented. We analyzed 70 samples from[...]
Article
Heikki Mykra, Auteur ;
Jani Heino, Auteur ;
Timo Muotka, Auteur
We examined how the assemblage structure and assemblage-environment relationships of stream macroinvertebrates varied over three consecutive years in a boreal drainage system. We specifically examined whether classifications produced assemblage [...]
Article
Karen L. Pope, Auteur ;
Justin M. Garwood, Auteur ;
Hartwell H. Welsh, Auteur ;
Sharon P. Lawler, Auteur
Hyperpredation occurs when non-native prey facilitate invasive predators, which then suppress native prey. Direct impacts of introduced fish on amphibians are well studied, but the role of fish in supporting shared predators has not been conside[...]
Article
Bryan R. Coppedge, Auteur ;
Samuel D. Fuhlendorf, Auteur ;
Wade C. Harrell, Auteur ;
Dauid M. Engle, Auteur
This study examined the importance of natural and manmade structural features on the avian community relative to management-induced vegetation dynamics. The study was conducted within the context of two alternative vegetation management treatmen[...]
Article
Ferenc Samu, Auteur ;
Peter Csontos, Auteur ;
Csaba Szinetar, Auteur
We investigated conservation value (CV) related to the quality of spider communities in different non-wooded habitat patches - ranging from arable land to natural grasslands. The study was conducted in two ecologically distinct regions of Hungar[...]
Article
Mark R. Lethbridge, Auteur ;
Peter J. Alexander, Auteur
In this study we compare estimates of the long-term mean stochastic population growth rates, E[r] for Petrogale xanthopus xanthopus (yellow-footed rock-wallaby), a threatened Australian species. In fluctuating environments such as semi-arid area[...]
Article
Gillian L. Olivieri, Auteur ;
Vitor Sousa, Auteur ;
Lounes Chikhi, Auteur ;
Ute Radespiel, Auteur
The exceptional biodiversity of Madagascar is threatened by anthropogenic landscape changes that took place during the 2000 years of human colonization. This study focuses on the influence of geographic distance and forest fragmentation on genet[...]
Article
Irina Herzon, Auteur ;
Juha Helenius, Auteur
We reviewed studies on the biological state of agricultural drainage ditches in the temperate and boreal zones of the Northern Hemisphere. We looked at the relative importance of ditches for farmland biota as compared to that of other habitats, [...]
Article
William J. Ripple, Auteur ;
Robert L. Beschta, Auteur
Using a historical reconstruction, we discovered a potential trophic cascade involving cougar (Puma concolor), mule deer (Odocoileus hemionus), and California black oak (Quercus kelloggii) in the Yosemite Valley of Yosemite National Park in Cali[...]
Article
Brendan Fisher, Auteur ;
R. Kerry Turner, Auteur
This letter is in response to an article by Ken Wallace titled "Classifications of ecosystem services: problems and solutions" (Biological Conservation 139, 2007). This letter discusses the points we see as problematic with Wallace's framework a[...]
Article
David G. Angeler, Auteur ;
Olga Viedma, Auteur ;
Salvador Sanchez-Carrillo, Auteur ;
Miguel Alvarez-Cobelas, Auteur
Ecologists increasingly recognise the importance of spatial scale for conservation. This study focuses on threatened temporary wetland crustaceans, the fairy shrimp Branchinecta orientalis Sars (Anostraca) and the tadpole shrimp Triops cancrifor[...]
Article
Maria Pohjamo, Auteur ;
Helena Korpelainen, Auteur ;
Nijole Kalinauskaite, Auteur
We studied the genetic diversity, gene flow and population structure among 18 populations of the clonal bryophyte Trichocolea tomentella located in Finland, Lithuania, the UK and Canada using DNA fingerprinting methods. T. tomentella is a habita[...]
Article
Stephen P. Brooks, Auteur ;
Stephen N. Freeman, Auteur ;
Jeremy J. D. Greenwood, Auteur ;
Ruth King, Auteur ;
Chiara Mazzetta, Auteur
For species that are still widespread, obtaining accurate and precise measures of population change inevitably means gathering representative sample data rather than undertaking a complete census. In the UK, a system of raising 'alerts' utilises[...]
Article
Aparajita Datta, Auteur ;
M. O. Anand, Auteur ;
Rohit Naniwadekar, Auteur
Illegal hunting poses a dual threat to large carnivores through direct removal of individuals and by prey depletion. We conducted a camera-trapping survey in the Namdapha National Park, north-east India, conducted as part of a programme to evalu[...]
Article
Arno Thomaes, Auteur ;
Thierry Kervyn, Auteur ;
Dirk Maes, Auteur
Despite its size and attractiveness, many Lucanus cervus sites remain undetected in NW Europe because of its short flight period and its nocturnal activity. Therefore, presentday designated conservation areas for L. cervus are probably insuffici[...]
Article
Suzanne C. Griffin, Auteur ;
Mark L. Taper, Auteur ;
Roger Hoffman, Auteur ;
L. Scott Mills, Auteur
In the mid-1990s, anecdotal reports of Olympic marmot (Marmota olympus) disappearances from historically occupied locations suggested that the species might be declining. Concern was heightened by the precipitous decline of the Vancouver Island [...]
Article
Francis W. Kirkham, Auteur ;
Jerry R. B. Tallowin, Auteur ;
Roy A. Sanderson, Auteur ;
Anne Bhogal, Auteur ;
Brian J. Chambers, Auteur ;
David P. Stevens, Auteur
Vegetation responses to fertilizers and lime applied in a seven-year study at paired unimproved and semi-improved mesotrophic hay meadows in Cumbria and Monmouthshire, UK, are described in terms of species-richness and several other plant commun[...]
Article
Nicole J. Fenton, Auteur ;
Yves Bergeron, Auteur
The relative importance of time since disturbance and habitat variables in creating diversity in old-growth forests will influence conservation strategies. However, the independent roles of these factors are not well understood, as they are rare[...]
Article
Joanne D. Connolly, Auteur ;
Alison Cree, Auteur
Maintenance of demographically and genetically self-sustaining populations in captivity can assist conservation of threatened species. Captivity can, however, lead to changes in phenotype, though to date this issue has received little attention [...]
