Content uploaded by Esteban Payan
Author content
All content in this area was uploaded by Esteban Payan on Mar 29, 2015
Content may be subject to copyright.
63
parksjournal.com
PARKS VOL 21.1 MARCH 2015
INTRODUCTION
The management and conservation of large carnivores is
one of the most challenging wildlife conservation issues
of our time. The global decline of large carnivores is tied
to the direct hunting of carnivores and their prey, along
with the loss and degradation of their habitat (Nowell &
Jackson, 1996; Hilty et al., 2006; Foster et al., 2010;
Estes et al., 2011; Ripple et al., 2014; Rabinowitz, 2015).
Whether the loss of large carnivores is direct or indirect,
and whether their loss is intentional or unintentional, the
effect on the communities in which they were resident
can have both immediate and long-term impacts (Estes
et al., 2011).
Protected areas play an important role in the
conservation of large carnivore populations by
supporting a wild prey base and often providing refuge
from direct persecution by people. However, large
carnivores range widely, often beyond the boundaries of
protected areas, where they may threaten livestock and
thus face increased risk of lethal control (Mills, 1991;
Woodroffe & Ginsberg, 1998; Payan et al., 2013). The
backlash from human residents near the protected areas
in such situations can be harmful to the conservation of
the carnivore population in the protected area, and it can
threaten the acceptance and purpose of the protected
area by local communities, who are mostly engaged in
www.iucn.org/parks www.iucn.org/parks
ABSTRACT
Due largely to their success in undisturbed areas, the conservation of large carnivores is tied to protected
areas. However, because of their large area requirements, large carnivores – and their conservation – will
also always be linked to areas outside of protected areas. Retaliatory killing of jaguars near reserves and in
corridors between reserves threatens to severely decrease jaguar populations in protected areas and their
corridors, thus decreasing the ecological viability of protected areas for the species. Resolving this conflict
will allow jaguars to utilize the human-dominated landscape, provide opportunities for corridor
conservation, and enhance the effectiveness of protected areas. We review methods to reduce depredation
of livestock and prevent lethal control of jaguars. Approaches to mitigate conflict include insurance
schemes, management of wild prey, and above all, improving livestock husbandry and management.
Improvements that are recommended for specific problem farms and ranches might include electric
fencing, night enclosures, designs for newborn holding pens, the use of guard animals, and partial herd
immersion of creole cattle races or water buffalo. We describe multiple testing scenarios and results from
throughout Latin America for reducing livestock depredation across protected areas and agricultural
landscapes.
Key words: Jaguar, carnivore conflict, livestock conflict, Latin America
OBSERVATIONS AND PRELIMINARY TESTING OF
JAGUAR DEPREDATION REDUCTION
TECHNIQUES IN AND BETWEEN CORE JAGUAR
POPULATIONS
Howard Quigley*1, Rafael Hoogesteijn1, Almira Hoogesteijn2, Rebecca
Foster1, Esteban Payan1, Daniel Corrales1, Roberto Salom-Perez1 and
Yahaira Urbina1,3
*Corresponding author: hquigley@panthera.org
1Panthera, New York, USA
2Cinvestav, Merida Unit, Human Ecology Department, Mexico
3ERI University of Belize, Belmopan, Belize and Panthera, New York, USA
PARKS 2015 Vol 21.1
10.2305/IUCN.CH.2014.PARKS-21-1HQ.en
64
Quigley et al
economic production unrelated to conservation (Treves,
2008). The resolution of this human-wildlife conflict
issue is dependent on the development of strategies to
decrease the conflict that carnivores create in the
landscapes surrounding protected areas. In Latin
America, there is a pressing need for solutions to
conflicts created by jaguars (Panthera onca) in the
landscapes surrounding protected areas.
Jaguars are the largest felid in Latin America. They
currently exist over more than 40 per cent of their
historic range (Rabinowitz & Zeller, 2010), much of
which is encompassed within protected areas, or near
them. In fact, our analysis, using the new IUCN range
map for jaguars1 and World Database on Protected Areas
(UNEP-WCMC, 2014) indicates that just over 50 per cent
of jaguar range is in protected areas or within 10 km of a
protected area (Petracca et al., unpublished data). Thus,
for both jaguars and humans, the mutually beneficial
results of reducing jaguar–human conflict in and around
protected areas can affect a large portion of Latin
America. The most prevalent and direct source of conflict
is between jaguars and livestock producers; most jaguars
are killed in retaliation for livestock depredation, or the
perceived threat of it (Rabinowitz, 1984; Marchini &
Macdonald, 2012; Zarco-Gonzalez et al., 2013). The
losses of these jaguars – particularly those that are
resident in both the protected area and the surrounding
multi-use lands – threaten the integrity of the natural
communities of flora and fauna the protected areas are
designed to protect. Other primary reasons for jaguar
loss are habitat loss and opportunistic hunting (Nowell &
Jackson, 1996).
In this paper, we address the questions surrounding
jaguar survival in and around protected areas,
particularly those landscapes in which livestock
production is an important human activity. Using
preliminary data from farms currently being monitored,
plus a literature review, we attempt to offer solutions to
jaguar depredation questions, especially as they relate to
areas near protected areas. We also address two
questions: what actions can be taken to reduce jaguar-
livestock conflict, and how can these actions be
facilitated by protected area managers?
METHODS
This paper is a summary of depredation solutions
observed by the authors on more than 120 ranch sites,
ongoing research on 30 ranches (in Belize, Costa Rica,
Colombia and Brazil), and supporting data from
additional publications (Rosas-Rosas et al., 2008; Salom
PARKS VOL 21.1 MARCH 2015
Jaguars still occur over more than 40 per cent of their historic range, and more than 50 per cent of that range is in or within 10
km of protected areas. Retaliatory killing of jaguars, due to their killing of livestock, is one of the most important threats to
jaguar existence in Latin American ecosystems © S. Winter, Panthera
65
parksjournal.com
-Perez, unpublished; Foster, 2008; Hoogesteijn &
Hoogesteijn, 20142). Geographic variation was not
considered to be an important influence in the
assessment of solution effectiveness in the depredation
solution observations; however, for the current
assessment of the ongoing research on 30 pilot ranches,
data on rainfall, vegetation composition, and additional
physical and biological characteristics are recorded.
Data were compiled through two approaches. First,
observations were made on ranches with and without
jaguar depredation issues; some ranches were visited due
to depredation activity; other ranches were visited
because they were in important jaguar areas. Second,
ranches with depredation histories were selected for
application of livestock management modifications.
Depredation activity after these modifications was
monitored. In nearly all cases specific information on
ranch operations were collected (e.g. number of
livestock, water sources, forested area, fencing design,
etc.) and this information was related to depredation
incidents and observations of the area. Prior to 2008, a
large amount of the data collected was collected
opportunistically. For instance, a depredation increase or
decrease was associated with some aspect of livestock
husbandry; additional applications of that method
produced similar results, and the method was termed
successful. Since 2008, 30 ranches have been assessed
and monitoring of depredation has taken place in a
regular and systematic fashion. At the 30 ranches
experimental applications include: electrical fencing on
12 ranches, night enclosures on 22 ranches, eight
separate new-born enclosures, two ranches with creole
cattle and two with water buffalo. Camera traps are
deployed to detect the presence of jaguars and other
predators.
RESULTS
To compile observations of depredation solutions, the
findings of more than 120 ranch visits over a period of
nearly twenty years were combined with monitoring data
from the 30 ranches. From this compilation more than a
dozen ranch modifications were tested and found
effective in reducing jaguar depredation or were highly
correlated with reduced jaguar depredation (see
discussion). Preliminary results are supported of
previous works of the authors (e.g. Hoogesteijn &
Hoogesteijn, 2014) and others (Rosas-Rosas et al.,
2008). Although data are still being collected, the 15
farms in Costa Rica, with electric fencing and night pens,
experienced no depredation during the first two years of
monitoring; six farms in Belize experienced no
depredation over 15 months of monitoring, with guard
animals and improved fencing; night pens in 14 Brazil
farms took depredation from six events to one over a
period of 18 months; and four farms using water buffalo
or creole breeds (Costa Rica, Colombia, and Brazil)
experienced no predation from herds monitored from six
months to four years. All of the above farms had
experience some level of jaguar attacks prior to the
application of depredation remedies.
DISCUSSION
Results from currently monitored farms display high
potential for reducing jaguar depredation. Although the
list of activities that help reduce depredation is an
extensive one, and the list is expected to become more
extensive and more detailed, below a reduced set of
activities that have been found to be particularly
successful is presented. These individual activities still
require further testing in a variety of conditions. What
works in one environment, might not work in another
(for instance, in our research, guard donkeys were
inexpensive and very effective in preventing jaguar
depredation in Belize, but in Costa Rica they were
prohibitively expensive even for testing). However, the
following were tested and found effective not only in the
current research, but in previous work (e.g. Salom-Perez,
unpublished; Foster, 2008; Hoogesteijn & Hoogesteijn,
2014).
Electric fences
One of the most important and effective tools available to
prevent predation by wild felids on cattle, sheep, pigs,
goats and fowl, is the use of electric fencing specifically
designed to repel predator attacks; we are currently
monitoring seven farms that have had no depredation
over two years; all of these farms had experienced
depredation losses prior to the implementation of electric
fencing. The specific designs of electric fencing
applications appear to effect results. Scognamillo et al.
(2002) used three strands at 30, 60 and 90 cm high
charged with 3,000 volts as being less effective than
when the system was charged with 4,500 to 5,000 volts;
eight attacks occurred in the former design and no
attacks occurred in the latter design.
Until now, the use of electric fencing has not been widely
used as a predator deterrent in Latin America. More
often, it has been used to keep domestic animals in
rather than keeping wild animals out. It is very important
to note that electric fences for livestock control, with one
or two strands of electrified wire, prevents cattle from
moving from one pasture to another, but is not effective
in preventing predator attacks. Fences must be
specifically designed to prevent the entry of jaguars. They
PARKS VOL 21.1 MARCH 2015
66
Quigley et al
are therefore particularly useful when used in smaller
areas, such as corrals used as night enclosures, or smaller
pastures such as those used for late-stage pregnant cows
or newborn calves and their dams. Electric fences have
also been used to surround all the pastures of a farm,
especially when small, or around areas known to be at
high predation risk.
In the Venezuelan Llanos, Scognamillo et al. (2002)
initially tested a design with three strands of electric
wire. An 18 ha calving paddock with a 1,697 m perimeter
was surrounded with strands arranged at 30, 60 and 90
cm from the ground. Strands were charged with 2,500 to
3,000 volts. Felines were however not deterred by this
design. Subsequently, an additional negative strand was
PARKS VOL 21.1 MARCH 2015
Electric fencing, even in very rudimentary forms, can be an effective deterrent to jaguar predation on livestock © Hoogesteijn
& Corrales, Panthera
67
parksjournal.com
added at 85 cm from the ground, and voltage was
increased to 4,500-5,000 volts. With these modifications
the attacks ceased.
Another trial was conducted in the Brazilian Pantanal
(Cavalcanti et al., 2011). The fence consisted of two
electrified wires at 25 and 50 cm in height with a
5,000 to 7,000 volts charge. The perimeter was
approximately 14 km, enclosing several pastures. The
fence was regularly checked to prevent leakages of
energy or faulty wiring. Additionally, the fence and
sleeping areas of the herds were monitored during the
night by a ranch employee equipped with a powerful
spotlight and explosive deterrents. This system was
shown to be effective and decreased predation losses
over several years. However, the results suggested that
enclosing smaller pastures might have been even more
effective.
Night enclosures
A very effective action in areas with intense predation is
to enclose domestic animals in corrals, pens or small
pastures near human habitation during night time. If the
night enclosure has lights or is located near human
habitation with dogs, it is even more effective. These
night enclosures can also be provided with electric
fencing. The animals (whether cattle, pigs, sheep or
goats) are easily habituated to enter the corrals. The
action reduces predation impacts significantly but
necessitates a slight increase in farm labour and
operating costs. This action can also enhance animal
nutrition because concentrated feed and supplements
can be supplied within the enclosure.
These night enclosures have been tried in different sized
farms and various ecological settings. For example, in
Costa Rica, in the Nairi Awari Indigenous Reservation on
the Talamanca Mountains, jaguars and pumas (Puma
concolor) attacked and consumed domestic pigs that
freely foraged in the forests. When enclosed at night,
there was initially a significant decrease in attacks (from
several in previous years plus a jaguar killed in
retaliation), to zero attacks in the final year of the project
(Salom-Pérez, unpublished data). Along with the pens
bio-digesters were built to produce biogas from the
faeces of the animals locked-in at night. The use of
biogas eliminated the need to collect firewood, thus
minimizing ‘wood collection time’ in exchange for ‘pig
collection time’ and can reduce forest destruction in and
around protected areas. Additionally this practice had
the positive side effect of reducing harmful smoke
exposure from the wood stoves (Salom-Pérez,
unpublished data).
Control of breeding and protection of young
One critical element that can be integrated with all of the
solutions presented here is the control of breeding within
livestock herds. The control of breeding is an essential
starting point in the reduction of jaguar depredation.
Despite the fact that jaguars can kill prey much larger
than themselves (including adult cattle) smaller, younger
individuals are particularly vulnerable. Controlling the
time in which these individuals are present in the
landscape helps managers improve their safety.
Conversely, if breeding takes place year round, farmers
are constantly attempting to secure and care for newly-
born young. With the young, vulnerable individuals
presenting themselves during one particular period of
the year farmers can provide more easily for their safety
in a more efficient and focused manner.
The most effective management strategy is to keep
calves, calves and mothers and late-pregnancy livestock
in special holding pens. Holding pens should not be
pastures containing forested areas or be adjacent to
forested areas (Cavalcanti et al., 2011). Cows should be
placed in open pasture areas, and preferably close to
human dwellings. This countermeasure is easily applied
in small and medium-sized ranches, especially those that
are well organized and have a 3-4 months breeding
season, which limits the calving season to 4-5 months in
the year. Added protection can be afforded through the
use of electric fencing.
In Costa Rica, a combination of night enclosures and
electric fences for birthing areas eliminated predation on
young calves. This work was performed in twelve small
experimental farms located at the Barbilla-Destierro
Biological Sub-corridor and the San Juan–La Selva
Biological Corridor (D. Corrales and Panthera Costa Rica
Team, unpublished data).
Guard animals
Guard animals can take several forms. They can be older
animals within a herd, or they can be other species that
are placed in the herd to prevent attack. Preliminary data
from field experiments indicates that experienced older
animals (bulls, steers or older cows with horns) will often
confront predators, as evidenced by marks from injuries
on these animals, sustained by felids. Therefore, a certain
percentage of these animals should be retained in the
herd. These animals teach defensive grouping behaviour
to the younger animals thus reducing predation. Tortato
et al., (in press) documented this on a ranch in the
Brazilian Pantanal. The ranch had high frequency jaguar
and puma predation. A larger proportion of older
animals in the herds diminished losses. Between January
2006 and September 2010, 73 per cent of the deaths
PARKS VOL 21.1 MARCH 2015
68
Quigley et al
caused by jaguars and pumas happened when the
proportion of adults in the herd was lower than 60 per
cent. The authors (Tortato et al., in press) point out that
this is a less aggressive alternative to predator removal or
relocation that produces economic benefits in herd
production.
Additional protection can be provided with guard
animals. Guard donkeys (Equus asinus), grazing with
herds of cattle, have been effective in reducing jaguar
predation in Belize (S. Juan, pers. comm.) due to their
aggressive braying and their tendency to confront
threats. This experience is being tested experimentally,
with promising preliminary results in Belize (R. Foster &
Panthera Belize Team, unpublished data).
Creole cattle
The majority of cattle in tropical America are zebu (Bos
indicus) pure- or cross-bred with varying admixtures of
European breeds (B. taurus) introduced into the
Americas by Europeans in the 17th Century. Although
high proportions of adults, especially males, in a herd of
zebu can reduce predation (see above; due to size,
awareness and defensiveness), the original European
breeds (e.g. Nelore breed) retained a stronger, innate
defensive response to threats. For example, cows have
highly defensive reactions against predators and protect
their newborn from attacks while zebu breeds stampede
in the presence of a predator, leaving small calves alone,
disoriented and prone to attack.
Several hardy breeds of B. taurus are however notable
for their adaptation to New World wildlife, plants,
parasites, etc. and in particular to the harsh conditions of
the flooded savannahs of the Neotropics. Two of these
are the Creole/Criollo Llanero and the Pantaneiro
breeds, in the Colombian and Venezuelan Llanos and the
Brazilian Pantanal, respectively. Most of these breeds
have an inherent ability to defend themselves from
predator attacks (Calzadilla Valdés, 2007), and
demonstrate a gregarious herd behaviour similar to the
one exhibited by the Asian water buffalo (described
below). Most of these breeds however do not have the
good carcass conformation for meat production
demanded by modern markets. Consequently, they
almost disappeared.
Experimental use of these breeds is currently underway
to scientifically document their predation-deterring
capabilities, along with their rescue and recovery for
potential use in areas of high jaguar predation.
Preliminary results indicate the Creole breed effectively
reduced jaguar predation in herds totally made up of
Creole cattle (San Martiniero breed, Colombia; no
predation over a two-year period), in herds with only a
percentage of Creole cattle (San Mariniero breed mixed
herds, Colombia, no predation over two-year period;
Pantaneiro breed mixed herds, Brazil, no predation over
one-year period), and potentially in herds of first
generation crosses (F1 offspring) of Creole cattle with
PARKS VOL 21.1 MARCH 2015
A young boy leads goats into an enclosure for the night. These enclosures, if used properly, can reduce jaguar predation on a
wide variety of domestic livestock © Hoogesteijn & Payan, Panthera
69
parksjournal.com
zebu cattle, thus enhancing carcass and meat quality and
conserving the defensive traits. This latter experiment is
still underway, attempting to produce increased meat
production while observing if anti-predation behaviours
are retained. First-generation offspring are displaying
defensive behaviours when approached; depredation on
these individuals, in paired comparisons with zebu
breeds, will measure differences in field conditions.
Water buffalo
The Asian water buffalo (Bubalus bubalis) originates
from Southeast Asia and was domesticated nearly 5,000
years ago. Having evolved in the presence of a large
predator, the tiger (P. tigris), they exhibit gregarious
behaviour. When under a perceived threat, females form
a circle around their calves, while the bulls walk around
this circle, actively looking for predators. Buffaloes tend
to graze in closed groups never straying far away from
each other and aiding any member of the herd that calls
in distress.
A study conducted in four Venezuelan ranches which
held cattle and buffaloes together (Hoogesteijn &
Hoogesteijn, 2008) compared predation mortality
between the two species held in equal conditions. The
results found that the likelihood of cattle being preyed
upon by jaguars or pumas was 25 times higher than for
buffaloes. Buffalo had the same protective reaction
toward predator attacks, regardless of circumstances or
management systems in which the herds were kept.
The use of water buffalo is expanding in the Llanos of
Colombia and Venezuela. It is a more efficient and
profitable species than cattle in flooded savannahs, or
very moist environments, containing poor quality forage.
Buffalo are highly desired for their gentleness when
properly managed, plus their productivity, disease
resistance, and defensive behaviour are all qualities
which make them desirable over cattle. Their growth
curve, fertility and longevity are also better than those of
cattle under similar conditions. Although some
management requirements of the species must be strictly
adhered to (e.g. managing at or below pasture carrying
capacity, providing regular contact so as to maintain
docile temperament, etc.), dramatic reductions in jaguar
predation can be obtained with both full and mixed herds
of water buffalo. In Costa Rica, a group of six water
buffalo were introduced to a ranch that had recently
suffered attacks on livestock. In six months, no attacks
have occurred in the mixed group of cattle and buffalo,
while there have been two attacks in neighbouring
ranches (D. Corrales, unpublished data).
Hunting management
Human hunting of both jaguars and their prey can
influence jaguar depredation. First, the indiscriminate
and opportunistic hunting of jaguars can produce
crippled individuals that are not able to hunt their
natural prey, and thus they turn to the killing of livestock
(Rabinowitz, 1986). Second, and more importantly,
studies in several different environments have found a
positive correlation between the overhunting of game
species by humans and elevated levels of jaguar
depredation (see Polisar et al., 2003). In areas where
hunting is legal, strict enforcement of sustainable harvest
is essential. Especially in areas of South America in
which subsistence harvesting of wildlife is present, it
might be necessary to prohibit hunting if the
enforcement of harvesting quotas is not effective. Most
importantly for jaguars, these restrictions should also be
in place for such species as spectacled caiman (Caiman
crocodilus), capybaras (Hydrochoerus hydrochaeris),
peccaries (Tayassu tajacu and T. peccary) and pacas
(Agouti paca).
CONCLUSIONS
The seven actions suggested above are those we (the
authors) felt are most easily applied and most effective in
reducing jaguar depredation, supported by the literature
and on-going data collection. However, given the loss of
jaguars due to retaliatory killing, and the effects of that
killing on the integrity of protected areas, additional
resources must be brought to bear to enhance known
solutions, and new solutions. One critical element that
integrates with all of the above is the control of breeding
within the livestock herds, and is thus an essential
starting point in the reduction of jaguar depredation.
Despite the fact that jaguars can kill prey much larger
than themselves, including adult cattle, smaller, young
individuals are particularly vulnerable. Lastly, the
application of the above findings will require outreach
and education in the communities surrounding protected
areas if human wildlife conflict related to jaguars is to be
reduced and the acceptance of protected areas by
communities enhanced (see Wells & Brandon, 1992). In
all jaguar range countries, governments have the legal
oversight of wildlife and natural resources, including
jaguars. Likewise, the establishment and oversight of
protected areas is also directed by government.
Commonly, these two government responsibilities are
under one government agency or institution. In addition,
in most jaguar range countries, agricultural ministries
oversee the health and production of livestock, especially
herds that are supplying livestock products (e.g. meat,
milk, etc.) to the general public. Involving all these
government entities, and integrating their policies in anti
PARKS VOL 21.1 MARCH 2015
70
Quigley et al
-predation activities is an important – if not essential –
part of the long-term reduction of jaguar depredation in
and near protected areas. Governments are becoming
more aware of the pervasiveness of the jaguar-livestock
conflict issue. At the same time, they are also becoming
aware that the problem is not solved by the constant
killing of depredating individuals. In addition, the
growing ecotourism industry in Latin America (Wallace,
1993; Stonza & Durham, 2008) provides added economic
incentives for maintaining complete assemblages of
native vertebrates, including large predators. Foster
(2008) analyzed the survival potential of jaguars in a
Belizean landscape and found that the current two
protected areas had the potential of supporting isolated
jaguar populations, but the probability of all populations
persisting for 100 years was approximately 50 per cent
unless dispersers from the core protected areas exceeded
12 percent per year. Thus, these landscapes and the
jaguar populations they support are dependent on the
interactions between protected areas and the more
human dominated landscape around them.
FOOTNOTES
1 http://maps.iucnredlist.org/map.html?id=15953
2 http://www.panthera.org/species/jaguar
ACKNOWLEDGEMENTS
We are grateful for the support of many individuals and
organizations too numerous to recognize here. We thank
all of you. We especially want to recognize the assistance
of the Environmental Research Institute at the University
of Belize, the Forestry Department within the Ministry of
Forestry, Fisheries and Sustainable Development in
Belize, the efforts of the UACFel response team officers
of Ministry of the Environment and Energy (MINAE-
SINAC) in Costa Rica, and the efforts of San Francisco
Ranch in the Brazilian Pantanal.
ABOUT THE AUTHORS
Howard Quigley obtained his Ph.D. from the
University of Idaho and has been involved with large
carnivore research and conservation for more than 30
years. He is currently the Executive Director of the
Jaguar Program at Panthera.
Rafael Hoogesteijn obtained his veterinary degree
from the College of Veterinary Medicine at the Central
University of Venezuela, and his Master’s Degree from
the University of Florida. He has worked for nearly 30
years in beef cattle/water buffalo production, and wildlife
conservation. He is currently the Director of the Jaguar
Conflict Program at Panthera.
Almira Hoogesteijn obtained her veterinary degree
from the College of Veterinary Medicine at the Central
University of Venezuela, and her Ph.D. from Cornell
University. She currently works at the Center for
Research and Advanced Studies at the National
Polytechnic Institute in Mexico. Her interests focus on
the impact of pesticides and heavy metals on human and
wildlife health, and she also conducts field research and
conservation activities on jaguars in Mexico.
PARKS VOL 21.1 MARCH 2015
Asian water buffalo are an important alternative to domestic cattle in some areas of Latin America due to their ability to use
marginal and wetland pastures, their productivity of meat and young, and their anti-predator defence behaviours that make
them less vulnerable to jaguar predation than cattle © Hoogesteijn, Panthera
71
parksjournal.com
Rebecca Foster obtained a Ph.D. from the University
of Southampton researching jaguar ecology across the
border of protected areas in Belize. She has studied the
jaguars of Belize for 12 years, and has particular interest
in solving issues of human-wildlife conflict. Rebecca
currently directs the Belize Jaguar Program for Panthera,
working in partnership with the Environmental Research
Institute at the University of Belize.
Esteban Payan obtained his Ph.D. from University
College London examining human use of wildlife in the
Colombian Amazon and the associated wild population
densities, including jaguars. He has a wide variety of
interests, from natural history of vertebrates, to genetic
health, to conservation policy. He currently serves as the
Director of Panthera’s Northern South America Program,
based in Bogota.
Daniel Corrales obtained his Bachelor’s Degree in
Biology in the Latin University of Costa Rica. He has led
the jaguar conflict programme in Costa Rica for Panthera
for over four years and is leading the creation and
training of the “Wild Cat Conflict Response Unit”,
UACFel, within the Costa Rican government.
Roberto Salom-Perez obtained his Master’s Degree
from the University of Cost Rica and continues to be
involved in a variety of research and conservation
activities throughout Costa Rica. He has been the
Director of Panthera Costa Rica for the past five years
and is currently pursuing his doctorate in a cooperative
program operated by the University of Idaho in the U.S.
and the Center for Tropical Agricultural Research and
Higher Education (CATIE) in Costa Rica.
Yahaira Urbina obtained her Bachelor of Science
Degree from the University of Belize, and a post-graduate
diploma from the University of Oxford. She is currently
employed as a Wildlife Biologist by the Environmental
Research Institute at the University of Belize. Yahaira is
especially interested in the human-wildlife interface,
including wildlife law, livestock predation and game
hunting.
REFERENCES
Calzadilla Valdés, F. (2007). Por los Llanos de Apure. A.
Hernández, A. Hernández de Espinosa y A. Michelangeli
(eds.). Editorial Altolitho. Caracas, Venezuela. 342 pp.
Cavalcanti, S.M.C., Crawshaw, P.G. and Tortato, F.R. (2011).
Use of electric fencing and associated measures as
deterrents to jaguar predation on cattle in the Pantanal of
Brazil. In: Somers, M. J.; Hayward, M. (eds.). Fencing for
conservation: Restriction of Evolutionary Potential or a
Riposte to Threatening Processes? New York: Springer.
Estes, J.A., Terborgh, J., Brashares, J.S., Power, M.E., Berger,
J., Bond, W.J., Carpenter, S.R., Essington, T.E., Holt, R.D.,
Jackson, J.B.C., Marquis, R.J., Oksanen, L., Oksanen, T.,
Paine, R.T., Pikitch, E.K., Ripple, W.J., Sandin, S.A.,
Scheffer, M., Schoener, T.W., Shurin, J.B., Sinclair, A.R.E.,
Soulé, M.E., Virtanen, R. and Wardle, D.A. (2011) Trophic
downgrading of Planet Earth. Science 333 (6040): 301–
306. DOI: 10.1126/science.1205106.
Foster, R.J. (2008). The Ecology of Jaguars in a Human-
influenced Landscape. Doctoral dissertation, Univ. of
Southhampton. 359 pp.
Foster, R.J., Harmsen, B. and Doncaster, C.P. (2010). Habitat
use by sympatric jaguars and pumas across a gradient of
human disturbance in Belize. Biotropica 42 (6): 724-731.
DOI: 10.1111/j.1744-7429.2010.00641.x.
Hilty, J. A., Lidicker Jr., W.Z. and Merenlender, A.M.. (2006).
Corridor ecology: The science and practice of linking
landscapes for biodiversity conservation. Island Press,
Washington, D. C., USA.
Hoogesteijn, R. and Hoogesteijn, A. (2008). Cattle and water
buffalo jaguar-related mortality – could water buffalo
facilitate jaguar conservation and cost-effective ranching
in the Neotropics? Oryx 42 (1): 132-138. DOI: http://
dx.doi.org/10.1017/S0030605308001105.
Hoogesteijn, R. and Hoogesteijn, A. (2014). Anti-Predation
Strategies for Cattle Ranches in Latin America: A Guide.
Eckograf Solutions Publishers, Campo Grande, MS, Brazil.
Marchini, S. and Macdonald, D.W. (2012). Predicting ranchers’
intention to kill jaguars: case studies in Amazonia and
Pantanal. Biological Conservation 147 (1): 213-221.
DOI:10.1016/j.biocon.2012.01.002
Mills, M.G.L. (1991). Conservation management of large
carnivores in Africa. Koedoe 34: 81-90. DOI: 10.4102/
koedoe.v34i1.417.
Nowell, K. and P. Jackson. (1996). Wild Cats, Status Survey and
Conservation Action Plan. IUCN. Gland, Switzerland.
Payan, E., Carbone, C., Homewood, K., Paemelaere, E.,
Quigley, H. and Durant, S.M. (2013). Where Will Jaguars
Roam? The Importance of Survival in Unprotected Lands.
In: M. Ruiz-Garcia & J.M. Shostell, (eds.) Molecular
Population Genetics, Evolutionary Biology, and Biological
Conservation of Neotropical Carnivores, pp. 118-142. Nova
Science Publications, Inc, Hauppage, NY.
Polisar, J., Maxit, I., Scognamillo, D., Farrell, L., Sunquist, M.
and Eisenberg. (2003). Jaguars, pumas, their prey base,
and cattle ranching: ecological interpretations of a
management problem. Biological Conservation 109: 297-
310. DOI:10.1016/S0006-3207(02)00157-X.
Rabinowitz, A. (1984). Jaguar: One Man’s Struggle to Establish
the World’s First Jaguar Preserve. Island Press,
Washington, D.C, 378 pp.
Rabinowitz, A. (1986). Jaguar predation on domestic livestock.
Wildlife Society Bulletin 14: 102-110.
Rabinowitz, A. (2015). An Indomitable Beast: The Remarkable
Journey of the Jaguar. Island Press, Washington D.C.
Rabinowitz, A. and Zeller, K.A. (2010). A range-wide model of
landscape connectivity and conservation for the jaguar,
Panthera onca. Biological Conservation 143: 949-945.
DOI:10.1016/j.biocon.2010.01.002
Ripple, W.J., Estes, J.A., Beschta, R.L., Wilmers, C.C., Ritchie,
E.G., Hebblewhite, M., Berger, J., Elmhagen, B., Letnic, M.,
Nelson, M.P., Schmitz, O.J., Smith, D.W., Wallach, A.D. and
Wirsing, A.J.. (2014). Status and ecological effects of the
world’s largest carnivores. Science 343: DOI: 10.1126/
science.1241484.
Rosas-Rosas, O.C., Bender, L.E. and Valdez, R. (2008). Jaguar
and puma predation on cattle calves in Northeastern
PARKS VOL 21.1 MARCH 2015
72
Quigley et al
Sonora, Mexico. Rangeland Ecology and Management 61:
554-560. DOI: http://dx.doi.org/10.2111/08-038.1
Scognamillo, D., Maxit, I., Sunquist, M., and Farrell, L. (2002).
Ecologia del jaguar y el problema de la depredation de
Ganado en un hato de Los Llanos Venezolanos. In:
Medellin, R.A., Equhua, C., Chetkiewicz, C., Crawshaw Jr.,
P.G., Rabinowitz, A., Redford, K.H., Robinson, J.G.,
Sanderson, E.W., and Taber, A.B. El jaguar en el Nuevo
Mileniol. Autonomous Univ. of Mexico, Mexico City,
Mexico. Pp. 139-150.
Stronza, A and Durham, W.H. (2008). Ecotourism and
Conservation in the Americas. CAB International,
Wallingford, UK. 284 pp.
Tortato, F.R., Layme, V.M.G., Crawshaw, Jr., P.G., and Izzo, T.J.
(in press). The impacts of herd composition and foraging
area on livestock predation by large felids in the Pantanal
of Brazil. Animal Conservation.
Treves, A. (2008). The Human Dimensions of Conflicts with
Wildlife around Protected Areas. In: M.J. Manfredo, J.J.
Vaske, P.J. Brown, D.J. Decker, and E.A. Duke (eds.) Wildlife
and Society, Island Press, Washington D.C.: pp. 214-225.
UNEP-WCMC (2014) The World Database on Protected Areas
(WCPA). Cambridge, UK:UNEP-WCMC. Available online:
www.protectedplanet.net.
Wells, M., and Brandon, K. (1992.)People and Parks: Linking
Protected Area Management with Local Communities.
World Bank, Washington D.C.:. 111 pp.
Wallace, G.N. (1993). Wildlands and ecotourism in Latin
America: investing in protected areas. Journal of Forestry
91: 37-40.
Woodroffe, R. and Ginsberg, J. (1998). Edge effects and the
extinction of populations inside protected areas. Science
280: 2126-2128. DOI:10.1126/science.280.5372.2126.
Zarco-Gonzalez, M.M., Monroy-Vilshis, O. and Alaniz, J.
(2013). Spatial model of livestock predation by jaguar and
puma in Mexico: conservation planning. Biological
C o n s e r v a t i o n v 1 59 :80 - 87 . DO I: 1 0 .1 016 /
j.biocon.2012.11.007
PARKS VOL 21.1 MARCH 2015
RESUMEN
Debido en gran parte a su éxito en áreas no perturbadas, la conservación de los grandes carnívoros está
ligada a las áreas protegidas. Sin embargo, debido a su necesidad de superficies extensas, los grandes
carnívoros –y su conservación– siempre estarán vinculados a zonas fuera de las áreas protegidas. La
matanza en represalia de jaguares cerca de las reservas y en los corredores entre reservas amenaza con
disminuir severamente las poblaciones de jaguares en las áreas protegidas y en sus corredores, con la
consiguiente reducción de la viabilidad ecológica de las áreas protegidas para la especie. La resolución de
este conflicto permitirá a los jaguares utilizar el paisaje dominado por humanos, deparará oportunidades
para la conservación de los corredores, y mejorará la eficacia de las áreas protegidas. Examinamos los
métodos para reducir la depredación de ganado y evitar el control letal de jaguares. Entre los enfoques para
mitigar los conflictos cabe señalar los planes de seguros, la gestión de presas silvestres, y –sobre todo– la
mejora de la cría y la gestión ganadera. Las mejoras que se recomiendan para problemas específicos en
granjas agrícolas y ganaderas pueden incluir cercas eléctricas, recintos nocturnos, diseños de corrales para
recién nacidos, el uso de animales de guardia, y la sumersión parcial de razas criollas de ganado o búfalos de
agua. Describimos múltiples escenarios de prueba y los resultados de toda América Latina para reducir la
depredación de ganado en áreas protegidas y paisajes agrícolas.
RÉSUMÉ
Due en grande partie aux succès remportés dans les zones non perturbées, la conservation de grands
carnivores est associée aux aires protégées. Toutefois, en raison de leurs exigences de matière d’espace, la
conservation de grands carnivores sera toujours liée aux régions à l'extérieur des aires protégées. L’abattage
de jaguars, en tant que mesure de représailles, se passe à proximité des réserves et dans les couloirs entre
les réserves et constitue une grave menace pour les populations de jaguar dans les aires protégées et leurs
couloirs, diminuant ainsi la viabilité écologique des aires protégées pour l’espèce. Seule une résolution de ce
conflit permettra aux jaguars de se déplacer à travers les territoires dominés par l'homme, ouvrira la
possibilité de mesures de conservation dans les couloirs et renforcera l'efficacité des aires protégées. Nous
examinons les méthodes permettant de réduire la déprédation du bétail et empêcher le contrôle létal de
jaguars. Les conflits humains-faune peuvent être gérés grâce à des approches variées tels des systèmes
d'assurance, la gestion des proies sauvages et surtout l’amélioration des techniques d'élevage. Certaines
améliorations recommandées pour les fermes et les ranches sont, par exemple, des clôtures électriques, des
enclos de nuit, des enclos d'hébergement pour nouveau-nés, la présence d'animaux de garde, et
l’incorporation partielle du bétail créole ou des buffles d'eau à l’intérieur de troupeaux. Nous présentons les
résultats de plusieurs tests en situation réelle à travers l’Amérique Latine destinés à réduire la déprédation
du bétail dans les aires protégées et les terrains agricoles.