Results 51 to 60 of about 11,789 (211)

African Elephant Specialist Group report/Rapport du Groupe des Specialiste des Éléphants d'Afrique

Pachyderm, 2005
Reviews ongoing AfESG programme and accomplishments during mid to late 2005. Compilation for the 2006 issue of the The African Elephant Status Report (formerly AED) is underway.
Holly Dublin
doaj   +1 more source

African elephant status report 2007: an update from the African elephant database [PDF]

, 2007
The African Elephant Database is a spatial database used to store, manage, analyze and disseminate information on the distribution and abundance of elephant populations on the African continent, in order to provide a current and accurate picture of the status African elephants.
Julian J. Blanc, Richard F.W. Barnes, G.C. Craig, H.T. Dublin, C.R. Thouless, Ian Douglas-Hamilton, J.A. Hart   +6 more
openaire   +1 more source

The potential effect of megafaunal extinctions on modern conservation of horse chestnut Aesculus hippocastanum

PLANTS, PEOPLE, PLANET, EarlyView.
Many plant species worldwide are struggling to regenerate due to the ongoing effects of climate change. These effects appear to be further exacerbated by the loss of keystone megafauna, which were important seed dispersers. By identifying the traits commonly seen in seeds spread by modern elephants, it is possible to predict which species likely ...
Andrew J. Tighe
wiley   +1 more source

Status and distribution of African elephant (Loxodonta africana) in Eastern Africa [PDF]

Computational Ecology and Software
This review aims to illustrate the status and distribution of African elephant in Eastern Africa. The source of data for this review was secondary data including published articles, books, Master theses, PhD dissertations and unpublished literatures. The
Aster Arefaine Gebrehiwet, Gebre Gidey Weldeabzgi   +1 more
doaj  

Spatial behavior of socially isolated wild pigs (Sus scrofa) following sounder removal via trapping

Pest Management Science, EarlyView.
Following partial sounder removal, socially isolated wild pigs maintained site fidelity near traps, highlighting post‐control behavioral tendencies that are relevant to pest management and disease mitigation. Abstract BACKGROUND The rapid expansion of wild pig (Sus scrofa) populations across North America, coupled with increased concern over disease ...
Sebastian Gomez‐Maldonado, Matthew T McDonough, Jonathon J Valente, Mark D Smith, Stephen S. Ditchkoff   +4 more
wiley   +1 more source

Molecular characterization of adipose tissue in the African elephant (Loxodonta africana).

PLoS ONE, 2014
Adipose tissue (AT) is a dynamic and flexible organ with regulatory roles in physiological functions including metabolism, reproduction and inflammation; secreted adipokines, including leptin, and fatty acids facilitate many of these roles.
Emeli M Nilsson, Hernan P Fainberg, Siew S Choong, Thomas C Giles, James Sells, Sean May, Fiona J Stansfield, William R Allen, Richard D Emes, Alison Mostyn, Nigel P Mongan, Lisa Yon   +11 more
doaj   +1 more source

Deep learning‐based ecological analysis of camera trap images is impacted by training data quality and quantity

Remote Sensing in Ecology and Conservation, EarlyView.
Machine learning image classifiers are increasingly being used to automate camera trap image labelling, but we don't know how much ML model accuracy matters for downstream ecological analyses. Using two large data sets from an African savannah and an Asian dry forest ecosystem, we compared human labelled data with predictions from deep‐learning models ...
Peggy A. Bevan, Omiros Pantazis, Holly A.I. Pringle, Guilherme Braga Ferreira, Daniel J. Ingram, Emily K. Madsen, Liam Thomas, Dol Raj Thanet, Thakur Silwal, Santosh Rayamajhi, Gabriel J. Brostow, Oisin Mac Aodha, Kate E. Jones   +12 more
wiley   +1 more source

Monitoring GPS‐collared moose by ground versus drone approaches: efficiency and disturbance effects

Wildlife Biology, EarlyView.
Efficient wildlife management requires precise monitoring methods, for example to estimate population density, reproductive success, and survival. Here, we compared the efficiency of drone (equipped with a RGB camera) and ground approaches to detect and observe GPS‐collared female moose Alces alces and their calves. We also quantified how drone (n = 42)
Martin Mayer, Erlend Furuhovde, Kristoffer Nordli, Giorgia Myriam Ausilio, Petter Wabakken, Ane Eriksen, Alina L. Evans, Karen Marie Mathisen, Barbara Zimmermann   +8 more
wiley   +1 more source

Evaluating machine learning models for multi‐species wildlife detection and identification on remote sensed nadir imagery in South African savanna

Wildlife Biology, EarlyView.
This research paper investigates the efficacy of leading machine learning (ML) models for detecting and identifying ungulate species in African savanna using nadir imagery from unmanned aerial vehicles (UAVs). Traditional aerial counting methods, while widely used, suffer from significant limitations in accuracy and precision, in part due to human ...
Paul Allin, Fadel Seydou, Radloff Frans, Andrew Davies, Alison Leslie   +4 more
wiley   +1 more source

Mitochondrial DNA analysis of two southern African elephant populations

Koedoe: African Protected Area Conservation and Science, 1996
The modern view is that there are at most only two valid forms of the African elephant namely Loxodonta qfricana africana, the bush elephant, and L.a. cyclotis, the forest elephant (Ansell 1974; Meester et al. 1986).
M.F. Essop, A.J. Hall-Martin, E.H. Harley   +2 more
doaj   +1 more source