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Lions in western Africa are in serious trouble

With new information available, LionAid has revisited the very serious and grim situation of the western African lions. In 2006, the IUCN published a conference report that opined there were between 1495 and 2530 lions in western Africa, albeit in mostly small and isolated populations.

That estimate was based on the “opinions of experts” attending the conference. Perhaps “wild guesses” would have been more a more appropriate descriptor. New information has become available in 2010 and 2011, and these results paint a completely different and much more depressing picture, especially as they are based on some actual surveys. 

Western African lions are genetically distinctive from other lions in Africa. Think Bengal Tigers and Siberian Tigers. But unlike those tigers, the western African lions have not been given much (any?) conservation attention. The IUCN has only unofficially recognized them as “regionally endangered”, and not formally afforded them the Red List status they now sadly deserve.

And these lions, believe it or not, are still trophy hunted – from 2000 to 2009, a total of 263 male lion trophies was exported from Cameroon, Burkina Faso and Benin. Would people sit quietly by if Siberian Tigers were trophy hunted? So why this strange complacency for western African lions?

Have a look at the table below that summarizes the status “accepted” by the IUCN in 2006, the more realistic current estimates, and the LionAid analysis. And realize that continued complacency will kill this unique cat.  

 

IUCN 2006 western African lion population numbers and current updates

IUCN Lion Cons. Unit

Name

Estimated 2006

Estimated 2011

1

Niokiolo -Guinee

500-1000

1501

2

Boucle Baoule

30-50

No informationa

3

Comoe-Leraba

<50

02

4

Gbele ecosystem

<50

02

5

Nazingana-Sissili

<50

02

6

Mole

<50

02

7

Bui-White Volta

<50

02

8

Oti-Mandouri

<50

No information

9

W-Arly-Pendjari

100-500 (disagreement)

No information

10

Digya

<50

02

11

Mt Kouffle/Wari Maro

<50

No information

12

Kainji Lake

50

242

13

Old Oyo

<5

02

14

Kamuku/Kwiambana

25-35

02

15

Lame-Burra/Falgore

25-35

02

16

Yankari

50

152

17

Waza

60

<203

18

Benoue-Gashaka-Gumti

200-300

1804

20

Odzala

<50

02

 

Total estimated

<1495 - <2530

<569 - <1039

 

Percent decline 2006-2011

 

72% - 59%

 


Analysis: The IUCN conference on western and central African lions, published 2006, rather than performing a country-by-country analysis of populations, designated “Lion Conservation Units” (LCUs) – areas of lion conservation importance. LCUs sometimes amalgamated relatively isolated lion populations (but occurring in some measure of proximity) and those that might be shared across national borders. In virtually all cases, estimates were not based on actual counts, but rather on “guesstimates” from delegates. More recently, better information has become available (see references below) from actual field counts. For example, Henshel et al (2010) surveyed 15 LCUs as defined by the IUCN and only found evidence of lion presence in 2 LCUs (Nigeria – Yankari and Kainji Lake). Crous et al (2011) updated lion numbers in the Benoue Complex in Cameroon. Other information comes from informed sources who have significant knowledge of the areas.

This more reliable current information indicates significantly lower lion population numbers than proposed by the IUCN in 2006. While the IUCN estimates cannot be considered reliable as they were based on little more than “opinions”, so the estimated declines of between 59 and 72% must be seen as approximations and not necessarily applicable to the last five years. However, what is abundantly clear from current information is that far fewer lions exist in western Africa than previously thought, and thus that their conservation status is becoming ever more tenuous. Given that western African lions are genetically highly distinctive from eastern and southern African lions, the need for effective protection programmes becomes ever more urgent.

a Where no new information exists, the 2006 data is brought forward
1 Radek Klimek, Peter Luptak – private communication
2 Henshel et al 2010. Lion status updates from five range countries in West and Central Africa. Cat News 52.
3 Hans de Iongh – private communication
4 Croes et al, 2011. The impact of trophy hunting on lions (Panthera leo) and other large carnivores
in the Bénoué Complex, northern Cameroon. Biological Conservation 144.

Picture credit: Martin Fowkes

Add a comment | Posted by Pieter Kat at 14:02