24 research outputs found
Life after Cecil : channelling global outrage into funding for conservation in Africa
Trophy hunting is widely used in Africa to generate funding for wildlife areas.
In 2015, a global media frenzy resulted from the illegal killing of a radiocollared
lion, “Cecil,” by a trophy hunter in Zimbabwe. Trophy hunting is contentious
and much of the media discourse is emotional and polarized, focusing
on animal welfare and debating the value of hunting as a conservation tool.
We use the Cecil incident to urge a change in the focus of discussion and make
a call for global action.We highlight the dual challenge to African governments
posed by the need to fund vast wildlife estates and provide incentives for conservation
by communities in the context of growing human populations and
competing priorities. With or without trophy hunting, Africa’s wildlife areas
require much more funding to prevent serious biodiversity loss. In light of this,
we urge a shift away from perpetual debates over trophy hunting to the more
pressing question of “How do we fund Africa’s wildlife areas adequately?” We
urge the international community to greatly increase funding and technical
support for Africa’s wildlife estate. Concurrently, we encourage African
governments and hunters to take decisive steps to reform hunting industries
and address challenges associated with that revenue generating option.http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1755-263Xam2017Mammal Research InstituteZoology and Entomolog
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Research and Design of a Routing Protocol in Large-Scale Wireless Sensor Networks
无线传感器网络,作为全球未来十大技术之一,集成了传感器技术、嵌入式计算技术、分布式信息处理和自组织网技术,可实时感知、采集、处理、传输网络分布区域内的各种信息数据,在军事国防、生物医疗、环境监测、抢险救灾、防恐反恐、危险区域远程控制等领域具有十分广阔的应用前景。 本文研究分析了无线传感器网络的已有路由协议,并针对大规模的无线传感器网络设计了一种树状路由协议,它根据节点地址信息来形成路由,从而简化了复杂繁冗的路由表查找和维护,节省了不必要的开销,提高了路由效率,实现了快速有效的数据传输。 为支持此路由协议本文提出了一种自适应动态地址分配算——ADAR(AdaptiveDynamicAddre...As one of the ten high technologies in the future, wireless sensor network, which is the integration of micro-sensors, embedded computing, modern network and Ad Hoc technologies, can apperceive, collect, process and transmit various information data within the region. It can be used in military defense, biomedical, environmental monitoring, disaster relief, counter-terrorism, remote control of haz...学位:工学硕士院系专业:信息科学与技术学院通信工程系_通信与信息系统学号:2332007115216
Rediscovery of the endangered giant pangolin (Smutsia gigantea) in Senegal after 24 years
Correction: Autosomal and mtDNA Markers Affirm the Distinctiveness of Lions in West and Central Africa.
Correction: Autosomal and mtDNA Markers Affirm the Distinctiveness of Lions in West and Central Africa
More than $1 billion needed annually to secure Africa’s protected areas with lions
Protected areas (PAs) play an important role in conserving biodiversity and providing ecosystem services, yet their effectiveness is undermined by funding shortfalls. Using lions (Panthera leo) as a proxy for PA health, we assessed available funding relative to budget requirements for PAs in Africa’s savannahs. We compiled a dataset of 2015 funding for 282 state-owned PAs with lions. We applied three methods to estimate the minimum funding required for effective conservation of lions, and calculated deficits. We estimated minimum required funding as 1,271/km2 based on modeled costs of managing lions at ≥50% carrying capacity across diverse conditions in 115 PAs; and 1.2 to 1,000 to 2,000/km2, yet received only 200/km2. Ninety-six percent of range countries had funding deficits in at least one PA, with 88 to 94% of PAs with lions funded insufficiently. In funding-deficit PAs, available funding satisfied just 10 to 20% of PA requirements on average, and deficits total 2.1 billion. African governments and the international community need to increase the funding available for management by three to six times if PAs are to effectively conserve lions and other species and provide vital ecological and economic benefits to neighboring communities.Panthera provided funding to support the study. J.R.B.M. was supported in part by National Science Foundation Coupled Human and Natural Systems Grant 115057. L.C. was funded by the US Agency for International Development.http://www.pnas.org2019-05-06hj2019Mammal Research InstituteZoology and Entomolog
Quasi-dynamic model of VSC-HVDC transmission systems for an operator training simulator application
Relationship between populations of lions based on mtDNA data and on 20 microsatellite loci.
<p>A: Haplotype network based on median-joining algorithm in Network; B: Phenetic tree based on D<sub>A</sub> genetic distance of microsatellite data of 12 lion populations.</p