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Huemul breeding and adaptive management

Conservation focus:

Huemul

Scientific name:

Hippocamelus bisulcus

IUCN status:

EDGE status:

EN (endangered)

Score 1.0, Rank 424 / 585 mammals

Threatened evolutionary history:

2 million years

Scientific classification:

Mammals, Artiodactyla, Cervidae

Huemul breeding and adaptive management

Population trend

Decreasing

Conservation attention

Low

Range

Ecological role

Being the only large ruminant herbivore in the Andean mountains, this was a keystone species when still occurring at natural densities. Its former ecological differentiation from to the guanaco (a similarly sized camelid herbivore with partly overlapping range) is not known.

Threats

One of the rarest cervids globally. Remaining population app. 1500, at very low densities and in highly fragmented populations (>100 groups spread along some 2000 km), with no signs of population growth. Due to disturbance, this species is restricted to summer ranges lacking critical trace minerals, resulting in severe health problems in most Argentinean huemul.

Grant

First awarded:

$ 12,785

10 September 2024

Score 1.0, Rank 424 / 585 mammals

Why support?

The Patagonian huemul, a South American representative of the roe deer, is only found in the southern Andes. It is so unsuspecting that it could literally be killed with a knife. Overhunting, displacement by livestock farming, conversion, fragmentation and colonization of its habitat - these classic drivers of extinction have caused the population to shrink to around 1,000 individuals today, which are dispersed into very small populations where they continue to dwindle. In Argentina in particular, the huemuls were also cut off from their vital winter habitats, which caused them to become ill (especially with bone diseases and selenium deficiency), reduced their fitness and brought their reproduction to a standstill. This project aims to remedy this situation in the long term and thus provide this super-rare endemic species with a foothold again.

Grant focus

Captive breeding for eventual release

Programme owner

Shoonem Foundation, Chubut, ARG

Programme contact

Werner Flück, PhD

Project location

Argentina

Lago Epuyén, Chubut, Argentina

Addressing the need: Project goals

Captive breeding and reintroducing huemul in formerly used winter ranges is expected to improve huemuls' health condition, allowing resumption of population growth.

The current key challenge is to reach sufficient group sizes of captive-bread huemul. This will require several years. Once reached, each year a small group may be taken from the breeding center and released in a selected reintroduction area.
In Argentina, this is the first and only initiative of this type. Until recently there had been only one breeding station for huemul, located in Chile. Their objective also was to reintroduce the species to areas where they had been exterminated in the past.
The project's main objective - reintroductions - is completely different from all other huemul conservation strategies currently employed in Argentina. These protect the species but fail to address the artificially reduced distribution due to past human impact.
Given the published results on huemul health problems from living year-round in nutritionally poor habitat, a conservation-only approach appears inadequate. So our approach relies on adaptive management, specifically via a breeding center and reintroductions. The accessibility of huemul in the center enables specific scientific studies aiming at improving the limited data available on this species so far.
Consequentially, a main need of this program is to cover the operational costs of both the breeding center and huemul studies. This involves contracting animal caretakers to work in the very remote breeding center, assure mobility, connectivity and security. Depending on the research topic, funds are also needed to cover the costs of various laboratories and technical personnel.
This project is planned to remain active until the huemul is no longer endangered as per IUCN and government criteria. This goal will require continuous funding.

Conservation actions

Captive breeding and reintroducing huemul in formerly used winter ranges is expected to improve huemuls' health condition, allowing resumption of population growth.

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