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Testudo hermanni (Gmelin 1789) – Hermann’s Tortoise
059.1 Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group A.G.J. Rhodin, P.C.H. Pritchard, P.P. van Dijk,Expand
Lead poisoning in waterfowl from the Ebro Delta, Spain: Calculation of lead exposure thresholds for mallards
The results derived from lead concentrations and gizzard examination showed that 27% of the mallard population in the winter period were poisoned, which represents about 10,000 individuals of a population of 36,500 mallards in the Ebro Delta. Expand
Persistent Organic Pollutants in gull eggs of two species (Larus michahellis and Larus audouinii) from the Ebro delta Natural Park.
OC pesticides and marker PCBs were the most abundant chemical families detected in eggs from the two species, followed by PFCs, PBDEs (especially BDE 209) and SCCPs. Expand
Age and sexual differences in the exploitation of two anthropogenic food resources for an opportunistic seabird
The results reveal sex-related and age-related differences in the consumption of fish discards, small pelagic fish and American crayfish, illustrating the importance of considering the age and sex of individuals to obtain feasible dietary information and to understand how the exploitation of food of human origin could affect population growth. Expand
A rangewide phylogeography of Hermann's tortoise, Testudo hermanni (Reptilia: Testudines: Testudinidae): implications for taxonomy
Hermann's tortoise (Testudo hermanni), the best‐known western Palaearctic tortoise species, has a rare natural distribution pattern comprising the Mediterranean areas of the Iberian, Apennine, andExpand
Estimating abundance and population trends when detection is low and highly variable: A comparison of three methods for the Hermann's tortoise
Among the 3 methods allowing estimation of tortoise abundances, capture–recapture should be preferred to assess population trends, and N-mixture models should be avoided in situations where the detection probability is very low at the risk of providing biased estimates. Expand
Global Conservation Status of Turtles and Tortoises (Order Testudines)
The order Testudines is, on average, more imperiled than all other larger orders (≥ 20 species) of Reptilia, Amphibia, Mammalia, or Aves, but has percentages of CR+EN and Threatened species and an ATL similar to those of Primates and Caudata (salamanders). Expand
Interference competition in a threatened seabird community: A paradox for a successful conservation
Analysis of spatio-temporal population dynamics of a threatened seabird community since the protection in the 1980s of several breeding sites at the Ebro Delta, western Mediterranean, Spain during 1980–2007 highlights the role of turnover of competing species within a community in ecosystem function and stability, and the importance of alternative sites and dispersal abilities for the conservation of vulnerable communities. Expand
Assessing the efficacy of reintroduction programmes by modelling adult survival: the example of Hermann's tortoise
From a management perspective, reintroduction programmes of the Hermann’s tortoise are a successful strategy for its recovery, but it seems advisable to avoid the release of tortoises at the core of well-established populations and areas with a high density of predators, which can jeopardize the reintroduction success. Expand
When to stay, when to disperse and where to go: survival and dispersal patterns in a spatially structured seabird population
The results indicate that a breeding site is not abandoned by breeders unless a series of cumulative perturbations occur; once dispersing, settlement is directed towards densely populated sites, with dispersers using population size to rapidly assess the quality of the breeding patch. Expand