Restoration ecology of coastal lagoons: new methods for the prediction of ecological trajectories and economic valuation

Conservation of the seven lagoons of the Palavas complex (southern France) has been severely impaired by nutrient over-enrichment during at least four decades. The effluents of the Montpellier wastewater treatment plant (WWTP) represented the main nutrient input. To improve the water quality of these lagoons, this WWTP was renovated and upgraded and, since the end of 2005, its effluents have been discharged 11 km offshore into the Mediterranean (total investment €150 M). Possibilities of ecosystem restoration as part of a conservation programme were explored by a focus group of experts. Their tasks were: (i) to evaluate the impact of the reduction of the nutrient input; (ii) if necessary, to design additional measures for an active restoration programme; and (iii) to predict ecosystem trajectories for the different cases. Extension of Magnoliophyta meadows can be taken as a proxy for ecosystem restoration as they favour the increase of several fish (seahorse) and bird (ducks, swans, herons) species, albeit they represent a trade-off for greater flamingos. Additional measures for active ecosystem restoration were only recommended for the most impaired lagoon Méjean, while the least impaired lagoon Ingril is already on a trajectory of spontaneous recovery. A multiple contingent valuation considering four different management options for the Méjean lagoon was used in a pilot study based on face-to-face interviews with 159 respondents. Three levels of ecosystem restoration were expressed in terms of recovery of Magnoliophyta meadows, including their impact on emblematic fish and avifauna. These were combined with different options for access (status quo, increasing access, increasing access with measures to reduce disturbance). The results show a willingness of local populations to pay per year about €25 for the highest level of ecological restoration, while they were only willing to allocate about €5 for additional footpaths and hides.

Processo histórico de criação e expansão do Instituto Federal do Triângulo Mineiro - Campus Patos de Minas

Dissertação (mestrado)—Universidade de Brasília, Faculdade UnB Planaltina, Programa de Pós-Graduação em Gestão Pública, Mestrado Profissional em Gestão Pública, 2016.

Pensamento de Remo Bodei sobre a filosofia do século XX : da estagnação ao retorno da responsabilidade

Dissertação (mestrado)—Universidade de Brasília,Instituto de Ciências Humanas, Programa de Pós-Graduação em Filosofia, 2014.

“Step by step”: high frequency short-distance epizoochorous dispersal of aquatic macrophytes

Aquatic macrophytes can successfully colonise and re-colonise areas separated by space and time. The mechanisms underlying such “mobility” are not well understood, but it has often been hypothesised that epizoochory (external dispersal) plays an important role. Yet, there is only limited, and mostly anecdotal, evidence concerning successful epizoochorous dispersal of aquatic macrophytes, particularly in the case of short-distance dispersal. Here we examine in situ and ex situ dispersal of aquatic macrophytes, including three invasive alien species. A high frequency of Lemna minor Linnaeus dispersal was observed in situ, and this was linked to bird-mediated epizoochory. We concluded that wind had no effect on dispersal. Similarly, in an ex situ examination Lemna minuta Kunth and Azolla filiculoides Lamarck, were found to be dispersed with a high frequency by mallard ducks (Anas platyrhynchos). No dispersal was measured for Elodea nuttalli (Planchon) H. St. John. It is concluded that short-distance or “stepping-stone” dispersal via bird-mediated epizoochory can occur with high frequencies, and therefore can play an important role in facilitating colonisation, range expansion and biological invasion of macrophytes.

Regional habitat needs of a nationally listed species, Canada Warbler (Cardellina canadensis), in Alberta, Canada

Understanding factors that affect the distribution and abundance of species is critical to developing effective management plans for conservation. Our goal was to quantify the distribution and abundance of Canada Warbler (Cardellina canadensis), a threatened old-forest associate in Alberta, Canada. The Canada Warbler has declined across its range, including in Alberta where habitat loss and alteration from urban expansion, forestry, and energy development are changing the forest landscape. We used 110,427 point count survey visits from 32,287 unique survey stations to model local-level (150-m radius circular buffers) and stand-level (564-m radius circular buffers) habitat associations of the Canada Warbler. We found that habitat supporting higher densities of Canada Warblers was locally concentrated yet broadly distributed across Alberta’s boreal forest region. Canada Warblers were most commonly associated with older deciduous forest at the local scale, particularly near small, incised streams, and greater amounts of deciduous forest at the stand scale. Predicted density was lower in other forest types and younger age classes measured at the local scale. There was little evidence that local-scale fragmentation (i.e., edges created by linear features) influenced Canada Warbler abundance. However, current forestry practices in the province likely will reduce the availability of Canada Warbler habitat over time by cutting old deciduous forest stands. Our results suggest that conservation efforts aimed at Canada Warbler focus on retaining large stands of old deciduous forest, specifically stands adjacent to streams, by increasing the width of deciduous retention buffers along streams during harvest and increasing the size and number of old forest residual patches in harvested stands.

SCDNR WMA REGULAR SEASON WATERFOWL HARVEST SUMMARY 2011-2012

The South Carolina Department of Natural Resources manages Waterfowl Management Areas to maintain populations of migratory waterfowl. This report provides a summary of the species, number of hunters, ducks per hunter, shots fired, cripples lost, and percentage lost of waterfowl hunted in the management areas.

The Effect of Eggs Shape Index on Embryo on Mortalities, Unhatched Eggs and Day Old duck Abnormalities of Selected and Control Tegal Duck

An experiment was conducted to study the effect of eggs shape index on embryo mortalities, unhatched egg and day old duck abnormalities of selected and control Tegal duck. A total of 1428 fertile eggs obtained from a selected duck group and a control group were divided in to 3 group according to their eggs shape index (ESI), i.e. small (ESI ,79 percent), medium ( ESI ,82 percent ) and large (ESI ,85 percent ). The ESI was measured as a ratio of wide and length of eggs and percentage. Three batches of incubation with 7 day interval were carried out as replicates. Parameter measured were embryo mortalities, number of unhatched eggs and number of abnormal day old duck. Candling of eggs were performed at 6, 14 and days of incubation and mortalities of embryo were detected by loup. Results of the experiment showed that lowest embryos mortalities was occurred on medium eggs (24 percent) and significantly ( p< 0,05 ) affected by eggs size. Abnormal DOD from medium eggs was significantly (p ,0,05 ) lower (13 percent ) than the small (23 percent ) and large (21 percent ) eggs. Similar trends on eggs from selected duck and control ducks. This may be due to short term of selection program and young age of the female duck (24 weeks ). These results conclude that medium eggs (ESI ,82 percent) were the best size for hatching eggs. (Animal Production 2(1): 25-32 (2000)Key word : duck , hatching eggs, selection, eggs shape index

The Effect of Fish Meal Substitution with Squilla empusa on Reproductive Performance of Local duck

A study has been conducted to know the effect of fishmeal substitution with Squilla empusa on reproductive performance of local duck.  Randomized Completely Design was applied in this experimental. Ninety-six grower local ducks were divided into six treatments ration. Each treatment was replicated by four replications and consists of four local ducks each. The treatment was P0 = 0 % Squilla empusa and 10 % fish meal, P1 = 2 % Squilla empusa and 8 % fish meal, P2 = 4 % Squilla empusa and 6 % fish meal, P3 = 6 % Squilla empusa and 4 % fish meal, P4 = 8 % Squilla empusa and 2 % fish meal, and P5 = 10 % Squilla empusa and 0 % fishmeal.  Parameters observed was reproductive performance consisted of sexual maturity, average egg production and egg weight during 3 months of production period. The result showed that fishmeal and Squilla empusa had very significant by effect (P<0,01) on feed consumption, sexual maturity, egg production and egg weight. It was significant by (P< 0,05) on egg production and weight. It was concluded that substitution up to 4.96 % of Squilla empusa give the latest of sexual maturity (5.8 month); the lowers egg production was at 6 % Squilla empusa; at 10 % Squilla empusa egg weight tended to increase. (Animal Production 6(2): 110-117 (2004) Key Words: substitution,  Squilla empusa, reproductive performance

Fat and Cholesterol Content of Breast and Thigh Meat of Local Fowls

The research was carried out to evaluate the influence of breed on fat and cholesterol content of breast and thigh meat of local fowls.  Tree breeds of local fowl consist of six male kampong chickens, Tegal ducks and muscovy ducks were applied.  An experimental method was used in this research.  Nested design was used.  The breeds of local fowl were as treatment, the part of carcass was as sub treatment and sample was as replication.  The result of the experiment showed that the part of carcass (breast and thigh) influenced meat fat and cholesterol content.  Breast meat had higher fat and cholesterol content than thigh meat.  Meat fat content had positive correlation with meat cholesterol. (Animal Production 5(2): 79-82 (2003) Key Words: Kampung Chicken, Duck, Muscovy, Breast, Thigh, Meat Fat and Meat Cholesterol