scholarly journals Individual Identification and Genetic Variation of Lions (Panthera leo) from Two Protected Areas in Nigeria

PLoS ONE ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. e84288 ◽  
Author(s):  
Talatu Tende ◽  
Bengt Hansson ◽  
Ulf Ottosson ◽  
Mikael Åkesson ◽  
Staffan Bensch
Oryx ◽  
2014 ◽  
Vol 48 (3) ◽  
pp. 385-393 ◽  
Author(s):  
Rosemary J. Groom ◽  
Paul J. Funston ◽  
Roseline Mandisodza

AbstractThe African lion Panthera leo is an iconic species but it has faced dramatic range reductions and possibly as few as 30,000 individuals remain in the wild. In the absence of detailed ground-based surveys, lion populations may be estimated using regression models based on prey biomass availability but these often overestimate lion densities as a result of a variety of compounding factors. Anthropogenic factors can be key drivers of lion population dynamics and in areas with high human impact lion numbers may be significantly lower than those predicted by prey biomass models. This was investigated in two protected areas in Zimbabwe, where lion population densities were found to be significantly lower than would have been predicted by prey-availability models. High hunting quotas either within or around the protected areas are the most likely cause of the low lion numbers, with quotas in some areas being as high as seven lions per 1,000 km2 in some years. Other factors, including persecution, poisoning and problem animal control, as well as disease and competition with spotted hyaenas Crocuta crocuta, are also discussed.


2018 ◽  
Vol 115 (45) ◽  
pp. E10788-E10796 ◽  
Author(s):  
Peter A. Lindsey ◽  
Jennifer R. B. Miller ◽  
Lisanne S. Petracca ◽  
Lauren Coad ◽  
Amy J. Dickman ◽  
...  

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 $978/km2per year based on the cost of effectively managing lions in nine reserves by the African Parks Network; $1,271/km2based on modeled costs of managing lions at ≥50% carrying capacity across diverse conditions in 115 PAs; and $2,030/km2based on Packer et al.’s [Packer et al. (2013)Ecol Lett16:635–641] cost of managing lions in 22 unfenced PAs. PAs with lions require a total of $1.2 to $2.4 billion annually, or ∼$1,000 to 2,000/km2, yet received only $381 million annually, or a median of $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 $0.9 to $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.


Oryx ◽  
2013 ◽  
Vol 47 (4) ◽  
pp. 490-500 ◽  
Author(s):  
Mara J. Goldman ◽  
Joana Roque de Pinho ◽  
Jennifer Perry

AbstractPopulations of the African lion Panthera leo are declining dramatically, with the species’ survival in some areas closely linked to levels of tolerance by rural communities. In Tanzania and Kenya several of the remaining lion populations outside protected areas reside adjacent to rural communities, where they are hunted. As many of these communities are Maasai, research and conservation efforts have focused on understanding and curbing Maasai lion hunting practices. Much of this work has been informed by a dichotomous explanatory model of Maasai lion hunting as either a ‘cultural’ ritual or a ‘retaliatory’ behaviour against predation on livestock. We present qualitative data from interviews (n = 246) in both countries to illustrate that lion hunting by Maasai is related to overlapping motivations that are simultaneously social, emotional and political (in response to conservation initiatives). Additional case study material from Tanzania highlights how politics associated with conservation activities and age-set dynamics affect lion hunting in complex and overlapping ways. Our findings contribute an ethnographic perspective on Maasai lion hunting, people–predator relations, and how these relations are linked to conservation politics.


2009 ◽  
Vol 59 (3) ◽  
pp. 273-281 ◽  
Author(s):  
Xiao-Wei Ni ◽  
Hai-Long Wu ◽  
Guo-Ping Zhu ◽  
Kai Meng

AbstractEleven high polymorphic across-species loci were used to test the usefulness in the individual identification and parentage determination of black muntjac and to detect the genetic variation in a captive population of the animal. Discrimination power for individual locus ranged from 0.845 to 0.949 with the cumulative discrimination power across the eleven loci being up to 1. The combined exclusion probability across the eleven polymorphic loci in the absence and presence of genetic information on the second parent was 0.999 and 1, respectively. These results indicated that the eleven microsatellites would be highly diagnostic in individual identification and parentage testing for the species. The application of these polymorphic loci to evaluate population genetic variation indicated that the genetic diversity of the captive population (5.4 and 0.68 for A and He, respectively; n = 14) was significantly lower than that of the source population (7 and 0.785 for A and He, respectively; n=16). This supported our previous results discovered by mtDNA d-loop, i.e., the genetic diversity of the captive population had obviously declined over less than 20 years due to the paucity of founders. However, difference of observation heterozygosity between the captive and the source populations was not significant. These results indicated that loss of nuclear diversity in the captive population was first evidenced by A but not Ho. In order to retard the potential inbreeding effect, we suggested that some more wild animals should be introduced into the captive population and that a pedigree-based breeding program should be established.


Oryx ◽  
2017 ◽  
Vol 52 (4) ◽  
pp. 751-760 ◽  
Author(s):  
Fikirte Gebresenbet ◽  
Brhane Baraki ◽  
Gidey Yirga ◽  
Claudio Sillero-Zubiri ◽  
Hans Bauer

AbstractWe assessed losses of livestock to lions Panthera leo and leopards Panthera pardus in the Adiyo and Gimbo districts in Kafa Biosphere Reserve, Ethiopia. We quantified the economic impact, conducted household and group interviews, and explored potential solutions with local people. During 2009–2013 there were 350 and 62 attacks by lions and leopards, respectively. Households that suffered attacks on their livestock lost a mean of USD 287 and USD 310 in 2012 and 2013, respectively. Although lion attacks are more frequent than leopard attacks, our qualitative data indicate that tolerance for the former is higher because lions are more respected in the local culture. We describe how depredation is culturally mitigated and how retaliatory killing is avoided. Given people's tolerance towards them, carnivores may persist in their highland refugium, opening an arena for conservation that is not strictly linked to protected areas or to classical economics.


2019 ◽  
Vol 46 (5) ◽  
pp. 398 ◽  
Author(s):  
Orla K. McEvoy ◽  
Susan M. Miller ◽  
Warren Beets ◽  
Tarik Bodasing ◽  
Natalia Borrego ◽  
...  

Context Managed wild lions (Panthera leo) are lions found in smaller (<1000 km2), fenced protected areas that hold a substantial portion of South Africa’s wild lion population. Because the natural population control mechanisms are compromised within these properties, managers must actively control population growth rates. Fecundity control is used by wildlife managers, but long-term, empirical data on the impact and consequences of such interventions in lions are lacking. Aims The aim of the present study was to assess the effectiveness of two methods of contraception (deslorelin implant and unilateral hysterectomy) in reducing cub recruitment of managed wild lions. Methods Survey data spanning 14 years from 94 managed wild lions on 19 protected areas were used to evaluate the effectiveness of deslorelin implant treatments and unilateral hysterectomies on population growth rates through mimicking open system cub recruitment. Key results Deslorelin implants were effective at increasing the age of first reproduction and lengthening inter-birth intervals. There was also an unexpected decrease in litter size. Behavioural side-effects were recorded in 40% of individuals: 19% pride fragmentation; 13% lack of receptiveness towards males; 8% other. The more successive deslorelin implants a lioness had, the more likely it was that weight gain was reported. Unilateral hysterectomy resulted in a decrease in litter size post-surgery, but this was not statistically significant. No behavioural or physiological side-effects were noted after unilateral hysterectomy. Conclusions Deslorelin treatment was more effective in reducing the reproductive output of managed wild lionesses than unilateral hysterectomy surgery. While more side-effects were associated with deslorelin implants than unilateral hysterectomies, a single deslorelin treatment is currently a good option for fecundity reduction. More research is required on unilateral hysterectomy surgery. Implications Neither deslorelin implants nor unilateral hysterectomies offer a ‘silver bullet’ solution for reducing rapid population growth in managed wild lions. Reproductive control should be integrated with other best-practice approaches.


2005 ◽  
Vol 6 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Jean Dubach ◽  
B. D. Patterson ◽  
M. B. Briggs ◽  
K. Venzke ◽  
J. Flamand ◽  
...  

2020 ◽  
Author(s):  
Timothy H. Tear ◽  
Nicholas H. Wolff ◽  
Geoffrey J. Lipsett-Moore ◽  
Mark E. Ritchie ◽  
Natasha S. Ribeiro ◽  
...  

AbstractLions (Panthera leo) in Africa have lost nearly half their population in just the last two decades, and effective management of the protected areas where lions live will cost an estimated USD $1 B/year in new funding. We explore the potential for natural climate solutions to fill this funding gap by introducing early dry season fire management programs to generate carbon credits. Potential carbon revenue from a single method (avoided emissions) or from multiple sequestration methods could provide annual revenue of USD $59.6-$655.9 M (at USD $5/ton) or USD $155.0 M–$1.7 B (at USD $13/ton). The top twenty PAs with lions and the greatest PCR could generate annually between USD $2.0–$57.5 M per PA, and PAs with the greatest potential for lion numbers between USD $1.5–$44.4 M per PA. We highlight priorities for investments and pilot projects to realize this potential in Africa.


2015 ◽  
Vol 38 (2) ◽  
pp. 151-162 ◽  
Author(s):  
F. M. Angelici ◽  
◽  
A. Mahama ◽  
L. Rossi ◽  
◽  
...  

Historically, the lion (Panthera leo) population in Ghana has been little studied and its status is poorly documented. Currently, after recent unsuccessful attempts to find signs of the presence of the species, many authors believe that the Ghanaian lion population is most likely extinct. In an attempt to gather more data, since 2005 we have been carrying out lion surveys in the most important parks and other protected areas of Ghana, mainly focusing on Mole National Park (MNP). We have also been extensively reviewing the literature in an attempt to reconstruct the history of the presence of the lion in the country. Although our research has not provided unequivocal evidence of the presence of the lion, we have collected circumstantial evidence that suggests that a small lion population might still be present in MNP and its surrounding areas.


Sign in / Sign up

Export Citation Format

Share Document