Is translocation of stock-raiding leopards into a protected area with resident conspecifics an effective management tool?

2010 ◽  
Vol 37 (8) ◽  
pp. 702 ◽  
Author(s):  
Maja Weilenmann ◽  
Markus Gusset ◽  
David R. Mills ◽  
Tefo Gabanapelo ◽  
Monika Schiess-Meier

ContextTranslocation as a non-lethal management tool to eliminate individual ‘problem’ animals is commonly used but rarely evaluated. AimWe sought to evaluate whether translocating stock-raiding leopards (Panthera pardus) into a protected area with resident conspecifics in Botswana is effective in dealing with ‘problem’ carnivores. MethodsWe assessed release-site fidelity, ranging behaviour, individual survival and reduction of conflict after translocation of four translocated leopards in relation to four resident conspecifics, which were tracked from 24 days up to 4 years. Key resultsNone of the translocated leopards showed release-site fidelity; they either returned to the trap site or showed extensive roaming behaviour after release. Three of the four translocated leopards reportedly resumed stock-raiding and were shot when ranging outside of protected areas, which apparently was a consequence of being released into an area already occupied by territorial conspecifics. On the basis of satellite telemetry, the linear movement distance of one translocated leopard (1249 km) and the range size of three resident female leopards (513 ± 124 km2) are the largest on record. ConclusionsFrom comparing the survival and ranging behaviour of translocated leopards with that of resident conspecifics, we conclude that translocation was not an effective management tool for dealing with stock-raiding leopards in our study. ImplicationsRather than translocating ‘problem’ carnivores, efforts should focus on reducing the potential for problems to develop, most importantly on improving livestock-husbandry practices.

1997 ◽  
Vol 3 (1) ◽  
pp. 39 ◽  
Author(s):  
Steven G. Fancy ◽  
Thomas J. Snetsinger ◽  
James D. Jacob

The Palila Loxioides bailleui is an endangered Hawaiian honeycreeper that is restricted to high-elevation dry woodlands on Mauna Kea volcano, Hawaii. Palila are absent or occur in small numbers throughout most of their historic range because of habitat loss, predation and avian disease. The Palila's habitat is regenerating as a result of feral ungulate control, but the species is likely to be slow in recolonizing former ranges because of strong site tenacity. In March 1993, we translocated 35 Palila to Kanakaleonui on the eastern slope of Mauna Kea to determine whether we could speed recovery by releasing adult birds in new areas where predators were controlled. At least two pairs of translocated Palila successfully nested at the release site during their first breeding season, and two other pairs constructed nests. The density of Palila at Kanakaleonui in the three years following the translocation was higher than that before translocation. Approximately half of the translocated birds remained at the release site for 2?6 weeks and then homed back to their capture site, >20 km away. Translocations of adult birds and release of captive-reared juvenile Palila, in combination with additional habitat restoration, may be an effective management tool for speeding the recovery of this species.


2008 ◽  
Vol 8 ◽  
pp. 1184-1196 ◽  
Author(s):  
Xia Zhang ◽  
Ping Xie ◽  
Xiaoping Huang

The aim of this review is to identify problems, find general patterns, and extract recommendations for successful management using nontraditional biomanipulation to improve water quality. There are many obstacles that prevent traditional biomanipulation from achieving expectations: expending largely to remove planktivorous fish, reduction of external and internal phosphorus, and macrophyte re-establishment. Grazing pressure from large zooplankton is decoupled in hypereutrophic waters where cyanobacterial blooms flourish. The original idea of biomanipulation (increased zooplankton grazing rate as a tool for controlling nuisance algae) is not the only means of controlling nuisance algae via biotic manipulations. Stocking phytoplanktivorous fish may be considered to be a nontraditional method; however, it can be an effective management tool to control nuisance algal blooms in tropical lakes that are highly productive and unmanageable to reduce nutrient concentrations to low levels.Although small enclosures increase spatial overlap between predators and prey, leading to overestimates of the impact of predation, microcosm and whole-lake experiments have revealed similar community responses to major factors that regulate lake communities, such as nutrients and planktivorous fish. Both enclosure experiments and large-scale observations revealed that the initial phytoplankton community composition greatly impacted the success of biomanipulation. Long-term observations in Lake Donghu and Lake Qiandaohu have documented that silver carp (Hypophthalmichthys molitrix) and bighead carp (H. nobilis) (two filter-feeding planktivorous species commonly used in management) can suppress Microcystis blooms efficiently. The introduction of silver and bighead carp could be an effective management technique in eutrophic systems that lack macrozooplankton. We confirmed that nontraditional biomanipulation is only appropriate if the primary aim is to reduce nuisance blooms of large algal species, which cannot be controlled effectively by large herbivorous zooplankton. Alternatively, this type of biomanipulation did not work efficiently in less eutrophic systems where nanophytoplankton dominated.


Author(s):  
Paulo R. Pezzuto ◽  
Caroline Schio ◽  
Tito C.M. Almeida

In Florianópolis, southern Brazil, the venerid clam Anomalocardia brasiliana has supported subsistence and small-scale commercial fisheries for decades. The introduction of a hand dredge (gancho) since 1987 led to the development of a significant fishery supplying both local and regional shellfish markets. In 1992 one of the main fishing areas in the region was designated as the first Brazilian Marine Extractive Reserve (Pirajubaé RESEX), a federal form of governance intended to promote sustainable exploitation of natural resources by assigning exclusive fishing rights to traditional users. However, excessive fishing effort, institutional shortcomings and lack of a negotiated management plan have resulted in the overexploitation of the species since 2000. This study was aimed at evaluating the efficiency and selectivity of the hand dredge currently in use at the RESEX, through a field experiment conducted in October 2006. Quantitative samples of A. brasiliana were collected before and after dredging 15 experimental plots. Additional samples were obtained inside the dredge (catch) and respective cover cod-end (discard) for selectivity analysis. A single haul of the hand dredge can dislocate up to 76% of the individuals present in the sediment irrespective of their size, and retain up to 69% of the commercial-sized organisms. The gear has a knife-edge selection pattern, which enables the use of the minimum spacing between the iron bars of the dredge's basket as an effective management tool.


2021 ◽  
Vol 7 (1) ◽  
pp. 34-44
Author(s):  
Carlos Rebelo ◽  
Luís Carvalhinho

The protected Area of Serra de Montejunto, as a Protected Area (AP) with potential for nature- based sports and active tourism activities, needs a useful management tool for different types of visitors, similar to the “Nature Sport Charts” existing in other APs in the country. Thus, this research aimed to characterize and evaluate the places for practice of nature-based sports and active tourism activities, namely places of climbing and hiking, using the characterization and evaluation sheets on all previously identified places. The results of this investigation aim to affirm the potential of this AP for sports activities practice in nature and demonstrated the good conditions that exists in practice sites, detecting only the presence of some occasional situations of inadequacy, lack or conservation of equipment. It is concluded that the practice of nature-based sport activities has a great potential in this AP, verifying however the necessity of carrying out strategies that involve: planning, management and maintenance of spaces in order to guarantee conservation and sustainability of the area.


2021 ◽  
Vol 25 (04) ◽  
pp. 846-854
Author(s):  
Alessandro Ribeiro Morais ◽  
◽  
Mariana Nascimento Siqueira ◽  
Roniel Freitas-Oliveira ◽  
Daniel Brito ◽  
...  

Protected areas are the most frequently used tool for the mitigation of threats to biodiversity. However, without effective management, the creation of new protected areas may be ineffective. In Brazil, protected areas must have both a governing body (consultative or deliberative council) and an official management plan. Here, we analyzed general trends and patterns in the approval of the management plans for Brazilian federal protected areas. We considered all federal protected areas, and compiled data on (i) the year the area was created, (ii) the type of protected area (integral protection vs. sustainable use), (iii) year its management plan was approved, (iv) year in which the management plan was revised after its approval, (v) total area (in hectares), and (vi) the biome in which the area is located. We stablished three groups of protected area: 1) Group A: protected areas created prior to 1979, 2) Group B: protected areas created between 1979 and 1999, and 3) Group C: protected areas created between 2000 to the present time. Finally, we tested whether time for the approval of the management plan suffered a simultaneous effect of the type of biome and type of categories of protected area (strictly protected vs. sustainable use areas). We found 211 (63.17% of the 334) protected areas with management plan. On average, the time taken for the creation and approval of a management plan far exceeds the deadlines (5 yrs.) defined under current Brazilian law. All Brazilian biomes are poorly covered by protected areas with effective management plans, with the highest and lowest value observed in the Pantanal (100%) and Caatinga (46.42%), respectively. Our results suggest that the effectiveness of many federal protected areas in Brazil can be reduced considerably by the lack of a management plan, with deleterious consequences for the country’s principal conservation strategies.


2020 ◽  
pp. 42-46
Author(s):  
L.N. Rozhdestvenskaya

The article summarizes international approaches to creating effective management tools that enable operational management of school nutrition programs of various scales — monitoring and evaluation systems. M&E system, as a project management tool, is the most relevant and appropriate way to reduce the level of uncertainty and ensure the effectiveness of management decisions, using the possibilities of digitalization. The paper suggests ways to create basic tools of the system for monitoring and evaluating national school nutrition programs and the national plan for the M&E system of the school nutrition program in Russia.


Author(s):  
L.M. Korchagina

Cost accounting is an effective management tool that allows a company to measure profitability by collecting key information by recording and tracking the data necessary for the most efficient and profitable operation of the company. Managing costs to maintain profitability is a top priority in all industries, which means relying on data to make smart and informed decisions. Cost data is the basis for strategic decisions. Having the right information available is key for every decision-maker. The article examines the issues of cost accounting, as well as problems related to profitability management in healthcare organizations. The author considers the most common problems that make it difficult to effectively account for costs and analyze the directions of patient care in medical organizations.


2018 ◽  
Vol 10 (12) ◽  
pp. 4450 ◽  
Author(s):  
Barbara Kożuch ◽  
Adam Jabłoński

The mechanisms of water supply company management have been dynamically evolving recently. This is particularly related to factors that regulate the functioning of companies in this sector. This applies both to embedding such entities in the legal structure, and the management rules at both the strategic and tactical-operational levels. It is increasingly important how decisions are made in the conditions of pressure, limitations, opportunities and threats that these companies, which create value for stakeholders, face. This way of making decisions is determined by the adopted model of business, strategy, business processes and strategic projects that create a kind of a strategic hybrid. The hybrid determines the effectiveness of water supply companies that operate in accordance with the rules of the regulated market.


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