Accuracy, precision, and cost-effectiveness of conventional dung density and fecal DNA based survey methods to estimate Asian elephant (Elephas maximus) population size and structure

2013 ◽  
Vol 159 ◽  
pp. 101-108 ◽  
Author(s):  
Simon Hedges ◽  
Arlyne Johnson ◽  
Marissa Ahlering ◽  
Martin Tyson ◽  
Lori S. Eggert
Keyword(s):  
Cost Effectiveness ◽  
Population Size ◽  
Survey Methods ◽  
Asian Elephant ◽  
Elephas Maximus ◽  
Fecal Dna ◽  
Size And Structure

scholarly journals Social structure and demography of a remnant Asian elephant Elephas maximus population and the implications for survival

Oryx ◽  
2020 ◽  
pp. 1-6
Author(s):  
Lauren J. Hale ◽  
Kun Shi ◽  
Tania C. Gilbert ◽  
Kelvin S.-H. Peh ◽  
Philip Riordan
Keyword(s):  
Social Structure ◽  
Population Size ◽  
Total Population ◽  
Camera Traps ◽  
Asian Elephant ◽  
Elephas Maximus ◽  
Effective Density ◽  
Anthropogenic Pressures ◽  
Sex Ratio Bias ◽  
Elephant Population

Abstract The Asian elephant Elephas maximus is at risk of extinction as a result of anthropogenic pressures, and remaining populations are often small and fragmented remnants, occupying a fraction of the species' former range. Once widely distributed across China, only a maximum of 245 elephants are estimated to survive across seven small populations. We assessed the Asian elephant population in Nangunhe National Nature Reserve in Lincang Prefecture, China, using camera traps during May–July 2017, to estimate the population size and structure of this genetically important population. Although detection probability was low (0.31), we estimated a total population size of c. 20 individuals, and an effective density of 0.39 elephants per km2. Social structure indicated a strong sex ratio bias towards females, with only one adult male detected within the population. Most of the elephants associated as one herd but three adult females remained separate from the herd throughout the trapping period. These results highlight the fragility of remnant elephant populations such as Nangunhe and we suggest options such as a managed metapopulation approach for their continued survival in China and more widely.

scholarly journals Acute and Fatal Herpesvirus Infection in a Young Asian Elephant (Elephas maximus)

1990 ◽  
Vol 27 (2) ◽  
pp. 131-133 ◽  
Author(s):  
P. Ossent ◽  
F. Guscetti ◽  
A. E. Metzler ◽  
E. M. Lang ◽  
A. Rübel ◽  
...  
Keyword(s):  
Asian Elephant ◽  
Elephas Maximus ◽  
Herpesvirus Infection

scholarly journals Evaluation of dog population in an urban area of Southeastern Brazil

1997 ◽  
Vol 31 (3) ◽  
pp. 308-309 ◽  
Author(s):  
Cáris M. Nunes ◽  
Dejanira de A. Martines ◽  
Stélios Fikaris ◽  
Luzia H. Queiróz
Keyword(s):  
Population Size ◽  
Urban Area ◽  
Human Population ◽  
Total Population ◽  
Southeastern Brazil ◽  
Control Programs ◽  
Paulo State ◽  
Vaccination Campaigns ◽  
Rabies Vaccination ◽  
Size And Structure

Planning control programs, for diseases such as rabies requires information on the size and structure of the dog and cat population. In order to evaluate the dog population of the urban area of Araçatuba city, S. Paulo State, Brazil, a survey was conducted using a questionnaire to interview members of households. Eighty-eight districts were visited (37,778 houses) and the interview was possible at 77.93% of these. Human population size evaluated was 113,157 inhabitants. Houses that owned animals represented 55.2%, 26,926 of the animals concerned were dogs and 5,755 were cats. Of the dogs, 56.64% were 1-4 year olds and males represented 56.2% of the total population. Dog: person ratio was estimated at 2.8 dogs to every 10 persons, almost 3 times the ratio hitherto estimated and used in the planning of rabies vaccination campaigns.

SUPRESSION OF TESTICULAR FUNCTION IN A MALE ASIAN ELEPHANT (ELEPHAS MAXIMUS) TREATED WITH GONADOTROPIN-RELEASING HORMONE VACCINES

2014 ◽  
Vol 45 (3) ◽  
pp. 611-619 ◽  
Author(s):  
Imke Lueders ◽  
Thomas Bernd Hildebrandt ◽  
Charles Gray ◽  
Stephan Botha ◽  
Peter Rich ◽  
...  
Keyword(s):  
Gonadotropin Releasing Hormone ◽  
Asian Elephant ◽  
Elephas Maximus ◽  
Testicular Function ◽  
Releasing Hormone

scholarly journals The efficacy of interventions to protect crops from raiding elephants

AMBIO ◽  
2021 ◽  
Author(s):  
Robert A. Montgomery ◽  
Jamie Raupp ◽  
Methodius Mukhwana ◽  
Ashley Greenleaf ◽  
Tutilo Mudumba ◽  
...  
Keyword(s):  
Asian Elephant ◽  
Elephas Maximus ◽  
Extensive Review ◽  
Crop Raiding ◽  
African Elephants ◽  
Effective Interventions ◽  
Raiding Behavior ◽  
Farmer Livelihoods ◽  
Chili Peppers

AbstractBoth African elephants (Loxodonta spp.) and the Asian elephant (Elephas maximus) across their range come into conflict with people because of their crop-raiding behavior, which presents profound impediments to farmer livelihoods. In response, a series of interventions, designed to reduce elephant crop raiding have been applied. Based on an extensive review of elephant crop-raiding studies published over a 31-year period, we identified four primary categories of interventions including: (i) detection efforts; (ii) preemptive measures; (iii) fencing and trenches; and (iv) deterrent techniques. The interventions reported to be most effective involved chili peppers (i.e., fences, spray, and briquettes) and crop guarding coupled with deterrents. The extent to which these interventions can be applied more widely is unclear as only two studies examined efficacy across sites in more than one country. Thus, future inquiry should evaluate the ability of effective interventions, or indeed a combination of interventions, to be applied across the range of elephants to reduce crop raiding at scale.

PERIOCULAR ANTERIOR ADNEXAL ANATOMY AND CLINICAL ADNEXAL EXAMINATION OF THE ADULT ASIAN ELEPHANT (ELEPHAS MAXIMUS)

2012 ◽  
Vol 43 (4) ◽  
pp. 793-801 ◽  
Author(s):  
Michael A. Wong ◽  
Ramiro Isaza ◽  
J. Kelly Cuthbert ◽  
Dennis E. Brooks ◽  
Don A. Samuelson
Keyword(s):  
Asian Elephant ◽  
Elephas Maximus

Liquid storage of Asian elephant (Elephas maximus) sperm at 4 °C

2004 ◽  
Vol 80 (3-4) ◽  
pp. 329-340 ◽  
Author(s):  
L.H. Graham ◽  
J. Bando ◽  
C. Gray ◽  
M.M. Buhr
Keyword(s):  
Asian Elephant ◽  
Elephas Maximus ◽  
Liquid Storage
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