Visitor Counter

hitwebcounter web counter
Visitors Since Blog Created in March 2010

Click Below to:

Add Blog to Favorites

Coyotes-Wolves-Cougars.blogspot.com

Grizzly bears, black bears, wolves, coyotes, cougars/ mountain lions,bobcats, wolverines, lynx, foxes, fishers and martens are the suite of carnivores that originally inhabited North America after the Pleistocene extinctions. This site invites research, commentary, point/counterpoint on that suite of native animals (predator and prey) that inhabited The Americas circa 1500-at the initial point of European exploration and subsequent colonization. Landscape ecology, journal accounts of explorers and frontiersmen, genetic evaluations of museum animals, peer reviewed 20th and 21st century research on various aspects of our "Wild America" as well as subjective commentary from expert and layman alike. All of the above being revealed and discussed with the underlying goal of one day seeing our Continent rewilded.....Where big enough swaths of open space exist with connective corridors to other large forest, meadow, mountain, valley, prairie, desert and chaparral wildlands.....Thereby enabling all of our historic fauna, including man, to live in a sustainable and healthy environment. - Blogger Rick

Subscribe via email to get updates

Enter your email address:

Receive New Posting Alerts

(A Maximum of One Alert Per Day)

Monday, January 2, 2012

A Puma was killed 40 miles West of San Antonio, Texas this past week, only the 4th over the last 46 years spanning back to 1965..........Beginning in the mid 1960's, all western states with surviving lion populations, except Texas, began reclassifying the Mountain Lion as a game species, regulating the number of Mountain Lions killed per year.....Signs and sightings of Mountain Lions during that period were extremely rare. A combination of factors contributed to a reduction in the killing of Mountain Lions by the mid-1960's allowing the species to slowly recover:: The failure of the sheep and goat industry, cessation of federally funded predator removal programs and the growing numbers of prey species such as deer, elk and moose ..........Currently, Mountain Lions in the state of Texas are classified as unprotected, nongame animals. Under this classification, the numbers of Mountain Lions being killed is unregulated which means that Mountain Lions can be killed year round regardless of age or sex. In addition, mountain lions in Texas have no bag limit and can be killed in any number...........Texas Parks and Wildlife is reporting that as of 2005, fully half of the Pumas being killed in the State are females, a truly bad situation that likely means that Lone Star hunters are overexploiting the population..........Pumas must be managed as Big Game with limits and seasons if this trend is to be reversed and our Big Cat is to remain a funtioning component of the Texas landscape

Mountain lion killed on Hondo ranch

A mountain lion was shot and killed Wednesday night on a Hondo ranch about 40 miles west of San Antonio.

Gene Naquin, a manager at Nooner Ranch, said a ranch cook called him after leaving work and spotting the big cat on a roadway.“I just grabbed a gun and jumped in my pickup,” Naquin said. “It was running toward me up the lane, and I dispatched it.”

Naquin said only three other mountain lions have been killed in the area since 1965. The cat killed Wednesday weighed 90 pounds and was a 2-year-old male, he said
- Texas Mountain Lions - Historical Overview
Mountain Lions used to inhabit the entire state of Texas.
  Early European settlers viewed predators, including the
 Mountain Lion, as a direct threat to their survival and
 their ability to raise livestock. As a result, measures
 for predator removal by any mean possible were
implemented across North America.
From the early 1800's until the mid 1960's "predator
  control" measures were implemented. Documentation
  regarding the distribution and abundance of Mountain
Lions throughout this period are scarce but an overall
 trend of population decline to almost total 
disappearance can be learned from the historical
records.
In Texas, Cope (1880) stated that Mountain Lions were
  "common all over Texas," and Attwater (1917) noted
 that, by the early 1890's, [Mountain Lions] "are fast
 becoming killed out." Bailey (1905) documented that
 there were Mountain Lions "in the rough and sparsely
  settled western part of the State" [of Texas], and Jones
 and Jackson (1941) stated that the species exists in
 small numbers.
 
In 1946, Young and Goldman published a report that
 examined Mountain Lion specimens across Texas.
 Most specimens were found in the Trans-Pecos and
  South Texas areas (Figure 3). It is unclear to what
extent Young and Goldman attempted to obtain
 specimens from the entire state.
Figure 3: Distribution of
 Mountain Lion specimens
examined by Young and Goldman,

 1946
(A blue star indicates a county where one or more

Mountain Lion specimens were found.)
Distribution of Mountain Lion specimens
Methods of predator removal included poisoning,
 trapping, and the use of dogs. They were accomplished
through private efforts and government encouragement
 and assistance, some involving bounty payments.

CLICK HERE TO SEE A PHOTOGRAPH
 OF A KILLED MOUNTAIN LION IN EDWARDS
COUNTY, TEXAS, 2007. THIS PHOTOGRAPH IS
 OF A GRAPHIC NATURE.

Beginning in the mid 1960's, all western states with
  surviving lion populations, except Texas, began
reclassifying the Mountain Lion as a game species,
regulating the number of Mountain Lions killed per year.
 
Signs and sightings of Mountain Lions during that
 period were extremely rare. A combination of factors
 contributed to a reduction in the killing of Mountain
 Lions by the mid-1960's allowing the species to slowly
 recover:: The failure of the sheep and goat industry,
cessation of federally funded predator removal
 programs and the growing numbers of prey species
such as deer, elk and moose
.
Goldman (1946) indicated that due to Texas
bordering Mexico, Mountain Lions will always
 be present, in some numbers in the state
 (Young and Goldman 1946). Roy McBride,
a government trapper, recalls that Mountain
 Lions were extremely rare in Texas by the 1960's.
 He explained how predator trappers would wait
 at known lion travel corridors on the Texas-Mexico
 border in the Big Bend area for Mountain Lions to
 explore the area so they could trap and kill them
 before they entered the state
 (McBride, Personal communication 2007).

Texas Mountain Lions - Current Status
Currently, Mountain Lions in the state of Texas
 are classified as unprotected, nongame animals.
  Under this classification, the numbers of Mountain
 Lions being killed is unregulated which means
 that Mountain Lions can be killed year round
 regardless of age or sex. In addition, mountain
 lions in Texas have no bag limit and can be killed
 in any number.
The population is mainly restricted to the western
 part of Texas (Trans-Pecos region and the western
 part of the Edward's plateau) and to southern Texas.
Most Mountain Lion mortalities in Texas are due to
 predator control activities (traps, snares, or poison)
 or due to opportunistic hunting.
The true effect of unregulated killing on the Texas
Mountain Lion population is unknown. The few
 studies that have been done indicate the following
(see tables below for more detailed data):
  1. Mountain lions are experiencing low
  2.  survivorship mainly due to predator
  3.  control and hunting practices (Tables 1- 4).
  4. A high percentage of female mountain lions
  5.  is being killed, a fact indicating that the
  6. population is being harvested at an unsustainable
  7.  level (more lions are being killed than survive)
  8.  (Table 6).
  9. Due to killing practices, mountain lions exhibit
  10. a skewed age group (population mainly composed
  11. of younger individuals), an unhealthy situation for
  12.  a wild (or any) animal population (Table 5).
It is unclear how many Mountain Lions currently
 live in the state of Texas. More research is needed
 in order to determine the health and viability of the
 state's Mountain Lion population.
Mountain Lion Mortality Rates (Tables 1 - 4)
Important Notes:
  1. Individuals with fate unknown were excluded
  2.  from the analysis.
  3. Individuals not part of the sampled, collared
  4.  group were excluded from the analysis.
  5. The effect of trapping, sedating and collaring
  6.  Mountain Lions on mortality rate is unknown.
  7.   It is possible that the act of collaring the lions
  8.  increases mortality by an unknown factor.
**Adams, 2003 – South Texas (1999 – 2001)
By 1999, only four Mountain Lions originally collared by
  Harveson in 1994 were still alive. Number originally
 collared, 21; number considered for this analysis, 18;
overall mortality, 77.8%.
Studies show that annual mortality rates exceeding
25% result in Mountain Lion population decline
(Cougar Management Guidelines, chapter 4).
Texas Mountain Lions - Age Structure
A population composed of younger individuals
 indicates that the Mountain Lions, who live in the
 wild 12 to 13 years, do not survive long and are
 being killed at an average age of 2.86 years (Table 5).

This age distribution is characteristic of an
 exploited Mountain Lion population
(Smith 1990, Harveson et al. 1996)

Age-Sex Composition Analysis
Studies show there is a correlation between
 the age and sex of killed Mountain Lions
 within a harvested population and the leve
of exploitation (killing) of that population*.
The study provides the following information
 regarding Mountain Lions' vulnerability
 (susceptibility) to being killed (see also
 explanation below):
The list is from the MOST vulnerable to
 LEAST vunerable:
  • Subadult males due to their great
  • dispersal distances
  • Resident males due to their large
  • territories
  • Subadult females (during their
  •  dispersal periods)
  • Resident females without young
  •  (larger territories)**
  • Females with older (>6 months)
  •  kittens (medium size territories)
  • Females with young (<6 months)
  •  kittens (smallest territories)

Studies show that in a highly hunted
/exploited population, as the level of
 exploitation increased and the population
 declined, the proportion of adult females
 in the harvest increased, the proportion
of sub-adults in the harvest decreased and
the mean age of harvested adult females
 decreased (Cougar Management Guidelines, 2005).

Table 6 indicates the high percentage of females
 comprising the reported harvested Mountain Lions
 in Texas. Despite the small sample size, more than
 half the Mountain Lions killed are females,
 an indicator that the less vulnerable part of
the population is being killed, which may
 mean overexploitation of the population***.

* Barnhurst 1986; Stoner 2004; Anderson and
 Lindzey 2005; Choate et al. 2006; Mountai
 Lion Management Plan, Wyoming Game and
Fish Department 2006.
** Females are known to decrease their territory
size when they have dependent young and begin
 increasing it as their young gain more independence.
*** The relationship between overexploitation of a Mountain
 Lion population and the sex-age of the animals killed is as follows:
  1. Subadult males are the most vulnerable individuals
  2.  within a Mountain Lion population in terms of being
  3.  killed. They are the ones that will disperse farthest
  4.  from their mother's territory seeking an empty territory
  5. or attempting to take over another male's territory
  6. Therefore, those young male mountain lions are the
  7.  ones we mostly expect to see in a healthy, but
  8.  harvested population.
  1. Adult Males are the second most vulnerable
  2.  Mountain Lions within a healthy Mountain
  3.        Lion population since they occupy large
  4.  territories and may seek females throughout
  5. that area and beyond.
  1. should not be found in high proportion in a
  2.  healthy, harvested Mountain Lion population.
  3.         If they are, it is an indication that the
  4. population is overexploited when it comes to
  5.  the number of Mountain Lions being killed.
2007 - 2011 All Rights Reserved. @ Balanced Ecology Inc. (254) 488 4642 begin_of_the_skype_highlighting (254) 488 4642 end_of_the_skype_highlighting

No comments: