I. Douglas-Hamilton

发表

African elephants: population trends and their causes

I. Douglas‐Hamilton, I. Douglas-Hamilton, 1987, Oryx.

Moving in the Anthropocene: Global reductions in terrestrial mammalian movements

Susanne A. Fritz, Navinder J. Singh, Samuel L. Díaz-Muñoz, 2018, Science.

Stable isotopes in elephant hair document migration patterns and diet changes.

G. Wittemyer, I. Douglas‐Hamilton, H. B. Rasmussen, 2006, Proceedings of the National Academy of Sciences of the United States of America.

Movement behaviour after birth demonstrates precocial abilities of African savannah elephant, Loxodonta africana, calves

G. Wittemyer, I. Douglas‐Hamilton, F. Vollrath, 2022, Animal Behaviour.

Using Poaching Levels and Elephant Distribution to Assess the Conservation Efficacy of Private, Communal and Government Land in Northern Kenya

P. Omondi, A. Skidmore, Tiejun Wang, 2015, PloS one.

Roadless Wilderness Area Determines Forest Elephant Movements in the Congo Basin

I. Douglas‐Hamilton, W. Karesh, F. Maisels, 2008, PloS one.

Stability in a multi-species assemblage of large herbivores in East Africa

I. Douglas‐Hamilton, H. Prins, I. Douglas-Hamilton, 1990, Oecologia.

African elephants run from the sound of disturbed bees

I. Douglas‐Hamilton, F. Vollrath, L. King, 2007, Current Biology.

Behavioural reactions of elephants towards a dying and deceased matriarch

G. Wittemyer, I. Douglas‐Hamilton, F. Vollrath, 2006 .

Movements and corridors of African elephants in relation to protected areas

T. Krink, F. Vollrath, T. Krink, 2005, Naturwissenschaften.

GPS telemetry of forest elephants in Central Africa : results of a preliminary study

William B. Karesh, Stephen Blake, Iain Douglas-Hamilton, 2001 .

Population genetic structure of savannah elephants in Kenya: conservation and management implications.

P. Omondi, P. Arctander, G. Wittemyer, 2008, The Journal of heredity.

Movement tortuosity and speed reveal the trade-offs of crop raiding for African elephants

I. Douglas‐Hamilton, R. Heinsohn, G. Troup, 2020, Animal Behaviour.

African bees to control African elephants

Fritz Vollrath, Iain Douglas-Hamilton, I. Douglas‐Hamilton, 2002, Naturwissenschaften.

Beehive fences as a multidimensional conflict‐mitigation tool for farmers coexisting with elephants

I. Douglas‐Hamilton, L. King, F. Lala, 2017, Conservation biology : the journal of the Society for Conservation Biology.

Illegal killing for ivory drives global decline in African elephants

George Wittemyer, Joseph M Northrup, Iain Douglas-Hamilton, 2014, Proceedings of the National Academy of Sciences.

The current elephant poaching trend

Iain Douglas-Hamilton, I. Douglas-Hamilton, 2009 .

Poaching policy: Rising ivory prices threaten elephants

George Wittemyer, Iain Douglas-Hamilton, G. Wittemyer, 2011, Nature.

Elephants, Ivory, and Trade

Bethan J. Morgan, P. Omondi, S. Wasser, 2010, Science.

Night-day speed ratio of elephants as indicator of poaching levels

P. Omondi, A. Skidmore, Tiejun Wang, 2018 .

History of Animals using Isotope Records (HAIR): A 6-year dietary history of one family of African elephants

J. Ehleringer, G. Wittemyer, I. Douglas‐Hamilton, 2009, Proceedings of the National Academy of Sciences.

Social integration of translocated wildlife: a case study of rehabilitated and released elephant calves in northern Kenya

G. Wittemyer, I. Douglas‐Hamilton, Jenna Stacy-Dawes, 2022, Mammalian Biology.

High-resolution stable isotope profiles of modern elephant (Loxodonta africana) tusk dentin and tail hair from Kenya: Implications for identifying seasonal variability in climate, ecology, and diet in ancient proboscideans

G. Schuster, P. Omondi, G. Wittemyer, 2020, Palaeogeography, Palaeoclimatology, Palaeoecology.

Forward and inverse methods for extracting climate and diet information from stable isotope profiles in proboscidean molars

P. Omondi, G. Wittemyer, I. Douglas‐Hamilton, 2020, Quaternary International.

Accelerometers in collars identify behavioral states in captive African elephants Loxodonta africana

Fritz Vollrath, Joseph Soltis, Anne Savage, 2012 .

The socioecology of elephants: analysis of the processes creating multitiered social structures

W. Getz, G. Wittemyer, I. Douglas‐Hamilton, 2005, Animal Behaviour.

Radiocarbon dating of seized ivory confirms rapid decline in African elephant populations and provides insight into illegal trade

S. Wasser, Xiaomei Xu, K. Gobush, 2016, Proceedings of the National Academy of Sciences.

Comparative Demography of an At-Risk African Elephant Population

George Wittemyer, Iain Douglas-Hamilton, G. Wittemyer, 2013, PloS one.

Demographic status of elephants in the Samburu and Buffalo Springs National Reserves, Kenya

G. Wittemyer, I. Douglas‐Hamilton, H. B. Rasmussen, 2005 .

The ranging patterns of elephants in Marsabit protected area, Kenya : the use of satellite linked GPS collars

Andrew K. Skidmore, Albertus G. Toxopeus, Henrik Barner Rasmussen, 2009 .

Vertical Transmission of Social Roles Drives Resilience to Poaching in Elephant Networks

George Wittemyer, Iain Douglas-Hamilton, G. Wittemyer, 2016, Current Biology.

African Elephant Alarm Calls Distinguish between Threats from Humans and Bees

I. Douglas‐Hamilton, J. Soltis, A. Savage, 2014, PloS one.

Social dominance, seasonal movements, and spatial segregation in African elephants: a contribution to conservation behavior

F. Vollrath, W. Getz, G. Wittemyer, 2007, Behavioral Ecology and Sociobiology.

Battle For The Elephants

I. Douglas‐Hamilton, Oria Douglas-Hamilton, B. Jackman, 1992 .

Conservation planning on a budget: a “resource light” method for mapping priorities at a landscape scale?

N. Georgiadis, D. Rubenstein, I. Douglas‐Hamilton, 2009, Biodiversity and Conservation.

Landscape-Scale Conservation Planning of the Ewaso Nyiro: A Model for Land Use Planning in Kenya?

N. Georgiadis, D. Rubenstein, I. Douglas‐Hamilton, 2011 .

Human footprint and protected areas shape elephant range across Africa

J. Ferwerda, J. Wall, G. Wittemyer, 2021, Current Biology.

Age- and tactic-related paternity success in male African elephants

P. Arctander, G. Wittemyer, I. Douglas‐Hamilton, 2008 .

Comparing an automated high-definition oblique camera system to rear-seat-observers in a wildlife survey in Tsavo, Kenya: Taking multi-species aerial counts to the next level

I. Douglas‐Hamilton, S. Ngene, M. Norton-Griffiths, 2020 .

Status and trends of elephants in the Serengeti‐Mara ecosystem

I. Douglas‐Hamilton, H. Dublin, I. Douglas-Hamilton, 1987 .

Conserving large populations of lions - the argument for fences has holes.

N. Pettorelli, D. Christianson, R. Hilborn, 2013, Ecology letters.

Beehive fences as effective deterrents for crop‐raiding elephants: field trials in northern Kenya

I. Douglas‐Hamilton, F. Vollrath, L. King, 2011 .

Will Elephants Soon Disappear from West African Savannahs?

George Wittemyer, Philippe Lejeune, Philippe Bouché, 2011, PloS one.

Bee Threat Elicits Alarm Call in African Elephants

I. Douglas‐Hamilton, J. Soltis, A. Savage, 2010, PloS one.

Beehive fence deters crop-raiding elephants

Fritz Vollrath, Iain Douglas-Hamilton, Anna Lawrence, 2009 .

Characterizing properties and drivers of long distance movements by elephants (Loxodonta africana) in the Gourma, Mali

George Wittemyer, Valerie LeMay, Brian Klinkenberg, 2013 .

Movement reveals reproductive tactics in male elephants

G. Wittemyer, I. Douglas‐Hamilton, F. Vollrath, 2019, The Journal of animal ecology.

Elliptical Time‐Density model to estimate wildlife utilization distributions

George Wittemyer, Valerie LeMay, Brian Klinkenberg, 2014 .

Behavioral responses of terrestrial mammals to COVID-19 lockdowns

Eric K. Cole, Daniel D. Olson, Michael E. Egan, 2023, Science.

Breeding phenology in relation to NDVI variability in free‐ranging African elephant

George Wittemyer, Henrik Barner Rasmussen, Iain Douglas-Hamilton, 2007 .

Novel opportunities for wildlife conservation and research with real-time monitoring.

George Wittemyer, Brian Klinkenberg, Jake Wall, 2014, Ecological applications : a publication of the Ecological Society of America.

Inferring ecological and behavioral drivers of African elephant movement using a linear filtering approach.

Wayne M Getz, Richard Starfield, George Wittemyer, 2011, Ecology.

Disentangling the effects of forage, social rank, and risk on movement autocorrelation of elephants using Fourier and wavelet analyses

Leo Polansky, Wayne M Getz, George Wittemyer, 2008, Proceedings of the National Academy of Sciences.

Where sociality and relatedness diverge: the genetic basis for hierarchical social organization in African elephants

P. Arctander, G. Wittemyer, I. Douglas‐Hamilton, 2009, Proceedings of the Royal Society B: Biological Sciences.

Cameras replace human observers in multi‐species aerial counts in Murchison Falls, Uganda

I. Douglas‐Hamilton, R. Lamprey, D. Ochanda, 2020, Remote Sensing in Ecology and Conservation.

The role of environmental, structural and anthropogenic variables on underpass use by African savanna elephants (Loxodonta africana) in the Tsavo Conservation Area

G. Wittemyer, I. Douglas‐Hamilton, J. Kolowski, 2022, Global Ecology and Conservation.

Applying network theory to animal movements to identify properties of landscape space use.

George Wittemyer, Guillaume Bastille-Rousseau, Joseph M Northrup, 2018, Ecological applications : a publication of the Ecological Society of America.

Endocrine and behavioral changes in male African elephants: Linking hormone changes to sexual state and reproductive tactics

I. Douglas‐Hamilton, H. B. Rasmussen, F. Vollrath, 2008, Hormones and Behavior.

Developing fencing policies for dryland ecosystems

N. Pettorelli, S. Creel, D. Christianson, 2015 .

Inter-generational change in African elephant range use is associated with poaching risk, primary productivity and adult mortality

G. Wittemyer, I. Douglas‐Hamilton, S. Goldenberg, 2018, Proceedings of the Royal Society B: Biological Sciences.

Graph theory illustrates spatial and temporal features that structure elephant rest locations and reflect risk perception

Fritz Vollrath, George Wittemyer, Laura M. Keating, 2017 .

CONVENTION ON INTERNATIONAL TRADE IN ENDANGERED SPECIES OF WILD FAUNA AND FLORA

G. Wittemyer, I. Douglas‐Hamilton, I. Douglas-Hamilton, 2000 .

Effectiveness of wildlife underpasses and culverts in connecting elephant habitats: a case study of new railway through Kenya’s Tsavo National Parks

I. Douglas‐Hamilton, R. Amin, L. King, 2021, African Journal of Ecology.

Noninvasive genotyping and Mendelian analysis of microsatellites in African savannah elephants.

P. Arctander, G. Wittemyer, I. Douglas‐Hamilton, 2005, The Journal of heredity.

Elephant distribution around a volcanic shield dominated by a mosaic of forest and savanna (Marsabit, Kenya)

P. Omondi, A. Skidmore, I. Douglas‐Hamilton, 2009 .

A model illustrating the changes in forest elephant numbers caused by poaching

I. Douglas‐Hamilton, R. Barnes, K. Beardsley, 1994 .

Controlling for behavioural state reveals social dynamics among male African elephants, Loxodonta africana

George Wittemyer, Iain Douglas-Hamilton, Henrik B. Rasmussen, 2014, Animal Behaviour.

The Influence of Social Structure, Habitat, and Host Traits on the Transmission of Escherichia coli in Wild Elephants

Laura E. Grieneisen, G. Wittemyer, I. Douglas‐Hamilton, 2014, PloS one.

Elephants avoid costly mountaineering

J. Wall, I. Douglas‐Hamilton, F. Vollrath, 2006, Current Biology.

Effective population size dynamics reveal impacts of historic climatic events and recent anthropogenic pressure in African elephants

P. Arctander, G. Wittemyer, I. Douglas‐Hamilton, 2008, Molecular ecology.

Bomb-curve radiocarbon measurement of recent biologic tissues and applications to wildlife forensics and stable isotope (paleo)ecology

P. Omondi, G. Wittemyer, I. Douglas‐Hamilton, 2013, Proceedings of the National Academy of Sciences.

Predicting time-specific changes in demographic processes using remote-sensing data

George Wittemyer, Henrik Barner Rasmussen, Iain Douglas-Hamilton, 2006 .

Establishing chronologies from isotopic profiles in serially collected animal tissues: An example using tail hairs from African elephants

G. Wittemyer, T. Cerling, I. Douglas-Hamilton, 2009 .

African elephant status report 2007 : an update from the African elephant database

C. Thouless, G. Craig, J. Hart, 2002 .

Optimizing the positioning of wildlife crossing structures using GPS telemetry

J. Wall, G. Wittemyer, I. Douglas‐Hamilton, 2018 .

Preliminary indications of the effect of infrastructure development on ecosystem connectivity in Tsavo National Parks, Kenya

J. Wall, G. Wittemyer, L. King, 2016 .

On the ecology and behaviour of the Lake Manyara elephants

I. Douglas‐Hamilton, I. Douglas-Hamilton, I. Douglas-Hamilton, 1973 .

The movement of African elephants in a human‐dominated land‐use mosaic

Iain Douglas-Hamilton, William M. Adams, W. Adams, 2009 .

Landscape‐scale habitat response of African elephants shows strong selection for foraging opportunities in a human dominated ecosystem

J. Wall, G. Wittemyer, I. Douglas‐Hamilton, 2019, Ecography.

The behaviour and fate of translocated bull African savanna elephants ( Loxodonta africana ) into a novel environment

I. Douglas‐Hamilton, C. Thouless, L. King, 2022, African Journal of Ecology.

Distribution and status of elephants in West Africa (1)

I. Douglas‐Hamilton, H. Roth, I. Douglas-Hamilton, 1991 .

Ranging Behavior, Population Status and Recent History of the Desert Elephants of Mali

Philippe Bouché, I. Douglas‐Hamilton, H. B. Rasmussen, 2003 .

The numbers and distribution patterns of large mammals in the Ruaha-Rungwa area of southern Tanzania.

I. Douglas‐Hamilton, R. Barnes, I. Douglas-Hamilton, 1982 .

Employing participatory surveys to monitor the illegal killing of elephants across diverse land uses in Laikipia–Samburu, Kenya

P. Omondi, G. Wittemyer, I. Douglas‐Hamilton, 2010 .

Elephant carcasses and skeletons as indicators of population trends

A. K. K. Hillman, I. Douglas-Hamilton, 1981 .

USING ELEPHANT CARCASS RATIOS TO DETERMINE POPULATION TRENDS

A. Burrill, I. Douglas-Hamilton, 2004 .

Differential influence of human impacts on age‐specific demography underpins trends in an African elephant population

G. Wittemyer, D. Daballen, I. Douglas-Hamilton, 2021, Ecosphere.

Poaching of African elephants indirectly decreases population growth through lowered orphan survival

C. Webb, G. Wittemyer, I. Douglas‐Hamilton, 2021, Current Biology.

Elephants and algorithms: a review of the current and future role of AI in elephant monitoring

Leandra L. Brickson, F. Vollrath, A. Titus, 2023, Journal of the Royal Society Interface.

Changes in elephant numbers in major savanna populations in eastern and southern Africa

Holly T. Dublin, Iain Douglas-Hamilton, Richard F. W. Barnes, 2005 .

Estimating elephant densities from wells and droppings in dried out riverbeds

H. B. Rasmussen, F. Vollrath, Onesmas Kahindi, 2005 .

Accelerometers and simple algorithms identify activity budgets and body orientation in African elephants Loxodonta africana

I. Douglas‐Hamilton, J. Soltis, F. Vollrath, 2016 .

Rainfall pattern and nutrient content influences on African elephants’ debarking behaviour in Samburu and Buffalo Springs National Reserves, Kenya

I. Douglas‐Hamilton, F. Vollrath, G. Kironchi, 2012 .

The impact of elephants, Loxodonta africana, on woody vegetation through selective debarking in Samburu and Buffalo Springs National Reserves, Kenya

F. Vollrath, G. Kironchi, Robert Chira, 2010 .

Among the elephants

Oria Douglas-Hamilton, I. Douglas-Hamilton, L. Jones, 1975 .

Evidence of strong spatial segregation between elephant subpopulations in the contiguous Laikipia–Samburu ecosystem in Kenya

M. Kinnaird, G. Wittemyer, I. Douglas‐Hamilton, 2016 .

Poaching lowers elephant path tortuosity: implications for conservation

A. Skidmore, Tiejun Wang, A. Toxopeus, 2019, The Journal of Wildlife Management.

Estimating age of immobilized elephants from teeth impressions using dental silicon

G. Wittemyer, I. Douglas‐Hamilton, H. B. Rasmussen, 2005 .