Africa’s elephants have been in dramatic decline for 50 years. What can be
done to save them – new study
George Wittemyer, The Conversation
March 2, 2025
Disclosure statement
George Wittemyer receives funding from the U.S.A. National Science
Foundation and Save the Elephants, a Kenya based non-profit organization.
He is a professor at Colorado State University and serves as the Chief
Scientist for Save the Elephants.
Surveying elephants is hard, risky work. Dedicated biologists have been
doing this challenging task across Africa for decades.
Systematic surveying started in the late 1960s but has been sporadic, as
access to remote areas takes logistical planning, funding and well-trained
teams. Surveys can easily be derailed by civil unrest or lack of available
survey teams. Consequently, the information on the numbers of elephants
across Africa is spotty. Even for a single population, survey effort and
coverage can change over the years.
Still, the efforts of governments and conservation organisations to count
elephants have amassed a remarkable dataset, held by the International
Union for the Conservation of Nature and its African Elephant Specialist
Group. It’s a complex dataset, which has made it harder to see general
scale trends in the numbers of elephants, until now.
In a new study, my colleagues and I have put together data from 1,325
surveys of elephant populations – everything we could find – to evaluate
how elephant numbers in Africa have changed over the last 50 years or so.
This research provides the most comprehensive assessment of trends in the
two species of elephants in Africa: the forest elephant and the savanna
elephant.
The results were eye opening. African elephants have experienced serious
losses in contemporary times (between 1964 and 2016). The average
population trend for African savanna elephants was a decline of 70%. Forest
elephant populations declined by over 90%. While declines in the species
had been widely recognised, understanding of the overall magnitude and
regional context was lacking until now.
We found that over the past 50 years there has been a shift in the
distribution of elephants across Africa. Population sizes have shifted too.
Three-quarters of today’s forest and savanna elephant populations are
smaller than 500 individuals.
Our team of African elephant conservation and survey data analysis experts
have highlighted the areas most at risk of losing their elephant
populations. We’ve also provided area-specific insight to elephant
conservation successes and failures. The research shows that maintaining
current elephant numbers, let alone reversing declines, requires new
thinking and conservation innovation.
Quantifying Scales of Decline
Declining elephant numbers are not surprising, given the level of ivory
poaching and the degree of human population growth and associated landscape
modification across Africa over the past 60 years. And this killing
continues. Hundreds of elephants are illegally killed each year, according
to the Monitoring of Illegal Killing of Elephants programme.
The scale of the decline merited listing savanna elephant species as
endangered and forest elephant species as critically endangered.
But this was not without controversy. In places, growing elephant
populations are creating management challenges, such as in and around Chobe
National Park, Botswana.
Thus, the reality at some sites does not match the overall, average trend
of populations across the continent. Our analysis was structured to give
insight into the diversity of trends. We also did this for the two species
separately.
We were able to dissect which populations had experienced losses and which
had gains, finding that trends varied by population.
What We Found
We found that southern Africa experienced the greatest diversity of trends.
Half the sites were stable or increasing over the study period. Populations
in Botswana and Zimbabwe, in particular, grew robustly and now hold the
majority of savanna elephants in Africa.
Increasing populations were rare in other regions. All the populations of
savanna elephants in the northern part of sub-Saharan Africa showed
declines. Many populations in the northern savannas of Chad, Nigeria,
Cameroon and Mali have been lost. Most remaining populations in the region
are under serious threat. Only remnant populations remain in the northern
savannas, typically isolated from each other.
East and central Africa, where most elephants once resided, underwent
serious losses over this period due to ivory poaching.
Can We Turn Declines Around?
Reversing the downward trend is difficult. Ivory poaching has driven large
scale declines over relatively short periods of time in Africa. Stemming
the ivory trade has proven difficult as it requires global recognition and
action.
Over the longer term, erosion of elephant range finishes off remnant
populations. Once elephant populations are lost, an area may lose its
protection, accelerating landscape changes.
Concerted efforts must be made to slow the erosion of remaining wildlands.
Despite the broad scale decline, there are numerous examples of populations
that are stable or increasing. Some are even within areas with few
persisting elephant populations. These successes suggest ways to reverse
elephant declines: tackling habitat loss, landscape conversion and ivory
poaching.
Reversing the Elephant Population Decline
Firstly, public-private partnerships in protected area management should be
considered.
In many countries, there’s not enough management capacity, leading to
“paper” parks. These are parks that are legally gazetted but in fact are
not functional. Institutional partnerships between relevant government
departments and the private sector – non-governmental organisations focused
on conservation – can uplift management efforts. This can also drive
progress towards economic sustainability of protected areas.
We have seen several examples of this with African Parks, a
non-governmental organisation that directly manages numerous protected
areas across Africa with government support.
Secondly, working with neighbouring communities and land use managers to
maintain the integrity of the landscape for wildlife like elephants is
crucial.
Large-scale landscape planning for co-existence with elephants in lands
adjacent to protected areas can take the form of tourism expansion. Land
can be converted to growing crops that wildlife do not eat, like chilli.
Wildlife-friendly and multi-use buffer zones can also be created.
Thirdly, ivory poaching must be tackled. Law enforcement must function in
protected areas and their surroundings. Similarly, it’s important to reduce
demand for illegal wildlife products, and the economic pressures that drive
the wildlife trade.
Africa’s human population will more than double over the next 50 years,
putting more pressure on Africa’s wildlands. New efforts are needed to stop
the decline of elephant populations and restore lost populations.
https://theconversation.com/africas-elephants-have-been-in-dramatic-decline-for-50-years-what-can-be-done-to-save-them-new-study-250293
Africa’s elephants have been in dramatic decline for 50 years. What can be
done to save them – new study
George Wittemyer, The Conversation
March 2, 2025
Disclosure statement
George Wittemyer receives funding from the U.S.A. National Science
Foundation and Save the Elephants, a Kenya based non-profit organization.
He is a professor at Colorado State University and serves as the Chief
Scientist for Save the Elephants.
Surveying elephants is hard, risky work. Dedicated biologists have been
doing this challenging task across Africa for decades.
Systematic surveying started in the late 1960s but has been sporadic, as
access to remote areas takes logistical planning, funding and well-trained
teams. Surveys can easily be derailed by civil unrest or lack of available
survey teams. Consequently, the information on the numbers of elephants
across Africa is spotty. Even for a single population, survey effort and
coverage can change over the years.
Still, the efforts of governments and conservation organisations to count
elephants have amassed a remarkable dataset, held by the International
Union for the Conservation of Nature and its African Elephant Specialist
Group. It’s a complex dataset, which has made it harder to see general
scale trends in the numbers of elephants, until now.
In a new study, my colleagues and I have put together data from 1,325
surveys of elephant populations – everything we could find – to evaluate
how elephant numbers in Africa have changed over the last 50 years or so.
This research provides the most comprehensive assessment of trends in the
two species of elephants in Africa: the forest elephant and the savanna
elephant.
The results were eye opening. African elephants have experienced serious
losses in contemporary times (between 1964 and 2016). The average
population trend for African savanna elephants was a decline of 70%. Forest
elephant populations declined by over 90%. While declines in the species
had been widely recognised, understanding of the overall magnitude and
regional context was lacking until now.
We found that over the past 50 years there has been a shift in the
distribution of elephants across Africa. Population sizes have shifted too.
Three-quarters of today’s forest and savanna elephant populations are
smaller than 500 individuals.
Our team of African elephant conservation and survey data analysis experts
have highlighted the areas most at risk of losing their elephant
populations. We’ve also provided area-specific insight to elephant
conservation successes and failures. The research shows that maintaining
current elephant numbers, let alone reversing declines, requires new
thinking and conservation innovation.
Quantifying Scales of Decline
Declining elephant numbers are not surprising, given the level of ivory
poaching and the degree of human population growth and associated landscape
modification across Africa over the past 60 years. And this killing
continues. Hundreds of elephants are illegally killed each year, according
to the Monitoring of Illegal Killing of Elephants programme.
The scale of the decline merited listing savanna elephant species as
endangered and forest elephant species as critically endangered.
But this was not without controversy. In places, growing elephant
populations are creating management challenges, such as in and around Chobe
National Park, Botswana.
Thus, the reality at some sites does not match the overall, average trend
of populations across the continent. Our analysis was structured to give
insight into the diversity of trends. We also did this for the two species
separately.
We were able to dissect which populations had experienced losses and which
had gains, finding that trends varied by population.
What We Found
We found that southern Africa experienced the greatest diversity of trends.
Half the sites were stable or increasing over the study period. Populations
in Botswana and Zimbabwe, in particular, grew robustly and now hold the
majority of savanna elephants in Africa.
Increasing populations were rare in other regions. All the populations of
savanna elephants in the northern part of sub-Saharan Africa showed
declines. Many populations in the northern savannas of Chad, Nigeria,
Cameroon and Mali have been lost. Most remaining populations in the region
are under serious threat. Only remnant populations remain in the northern
savannas, typically isolated from each other.
East and central Africa, where most elephants once resided, underwent
serious losses over this period due to ivory poaching.
Can We Turn Declines Around?
Reversing the downward trend is difficult. Ivory poaching has driven large
scale declines over relatively short periods of time in Africa. Stemming
the ivory trade has proven difficult as it requires global recognition and
action.
Over the longer term, erosion of elephant range finishes off remnant
populations. Once elephant populations are lost, an area may lose its
protection, accelerating landscape changes.
Concerted efforts must be made to slow the erosion of remaining wildlands.
Despite the broad scale decline, there are numerous examples of populations
that are stable or increasing. Some are even within areas with few
persisting elephant populations. These successes suggest ways to reverse
elephant declines: tackling habitat loss, landscape conversion and ivory
poaching.
Reversing the Elephant Population Decline
Firstly, public-private partnerships in protected area management should be
considered.
In many countries, there’s not enough management capacity, leading to
“paper” parks. These are parks that are legally gazetted but in fact are
not functional. Institutional partnerships between relevant government
departments and the private sector – non-governmental organisations focused
on conservation – can uplift management efforts. This can also drive
progress towards economic sustainability of protected areas.
We have seen several examples of this with African Parks, a
non-governmental organisation that directly manages numerous protected
areas across Africa with government support.
Secondly, working with neighbouring communities and land use managers to
maintain the integrity of the landscape for wildlife like elephants is
crucial.
Large-scale landscape planning for co-existence with elephants in lands
adjacent to protected areas can take the form of tourism expansion. Land
can be converted to growing crops that wildlife do not eat, like chilli.
Wildlife-friendly and multi-use buffer zones can also be created.
Thirdly, ivory poaching must be tackled. Law enforcement must function in
protected areas and their surroundings. Similarly, it’s important to reduce
demand for illegal wildlife products, and the economic pressures that drive
the wildlife trade.
Africa’s human population will more than double over the next 50 years,
putting more pressure on Africa’s wildlands. New efforts are needed to stop
the decline of elephant populations and restore lost populations.
https://theconversation.com/africas-elephants-have-been-in-dramatic-decline-for-50-years-what-can-be-done-to-save-them-new-study-250293