Home Wild California Mountain Lions Are Turning Nocturnal to Coexist with Humans

California Mountain Lions Are Turning Nocturnal to Coexist with Humans

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Mountain lions in California are adapting to the growing presence of humans by shifting their activity patterns to nighttime hours. A recent study published in Biological Conservation has revealed that mountain lions living in areas with high human activity, such as hikers, cyclists, and joggers, are more likely to be active at night than those in less populated regions. This adaptability offers hope for the possibility of future coexistence between humans and these majestic predators.

A Shift in Behavior

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The study, conducted around Los Angeles, highlights how human activities are influencing the behavior of mountain lions. The increased presence of people in natural areas has led these wild animals to become more nocturnal, avoiding daylight hours to reduce their exposure to human activities.

Human Activities and Wildlife

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Ellie Bolas, a Ph.D. candidate at UC Davis, co-authored the study and emphasized that this shift in behavior is a positive sign. As people increasingly engage in outdoor activities, the mountain lions’ ability to adjust provides an opportunity for peaceful coexistence.

The Importance of Adaptation

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Bolas explained that people recreating in nature is a wonderful trend, but the flexibility shown by mountain lions in adjusting their activity times is essential for peaceful cohabitation. These animals are doing the work needed for humans and wildlife to share natural spaces.

The Nocturnal Nature of Mountain Lions

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Mountain lions, also called cougars, pumas, or panthers, are naturally crepuscular animals, meaning they are most active during dawn and dusk. This pattern helps them avoid the heat of the day and also aligns with the activity patterns of their prey.

Human Activity Influences

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However, mountain lions can also adapt to being nocturnal when faced with significant human activity in their habitat. This change has been observed more frequently in areas like Griffith Park and the Verdugo Mountains, where human presence is particularly high.

GPS Tracking Study

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Researchers used GPS trackers to study the movements of 22 mountain lions living in and around the Santa Monica Mountains between 2011 and 2018. They compared the movement data with human activity levels gathered from the fitness app Strava.

Findings: More Nocturnal in Busy Areas

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The study found that mountain lions in areas with high recreational activity, such as Los Angeles, tended to avoid dawn and dusk and were more active at night. This shift in behavior was particularly evident in areas with heavy human foot traffic.

Male vs. Female Mountain Lions

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The study revealed some interesting differences in how male and female mountain lions responded to human activity. Male lions, particularly P41 and P22, showed more nocturnal behavior than the females, who exhibited less change in their activity patterns.

Female Lions and Territory

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Female mountain lions tend to avoid areas dominated by males due to the danger they pose to females and their cubs. This territorial behavior may explain why females don’t shift their activity patterns as strongly as males do in response to human activity.

Global Implications for Wildlife

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The study’s findings are part of a growing body of research that shows how various mammal species, such as deer, coyotes, and tigers, are adjusting their behavior to avoid human interactions. Another study in 2018 found similar patterns in wildlife around the world.

Hidden Effects of Human Activity

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Seth Riley, a wildlife ecologist for the Santa Monica Mountains, pointed out that human activity can affect wildlife in subtle ways beyond direct harm, such as vehicle collisions. The study underscores the importance of understanding these impacts on animal behavior.

Persistence of Mountain Lions in Urban Areas

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Despite the challenges posed by human presence, mountain lions continue to thrive in urban areas like Los Angeles, thanks to their ability to adapt. This study demonstrates the resilience of these predators and their ability to coexist with human populations.

Avoiding Human-Mountain Lion Encounters

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While mountain lion attacks on humans are rare, there are precautions people can take to reduce the risk of an encounter. Avoiding their habitats during dawn and dusk, staying vigilant while driving at night, and taking extra care in areas with increased human activity are all recommended.

A Path Toward Coexistence

Johanna Turner

The researchers are optimistic that by understanding and respecting mountain lions’ need for space and time to adapt, humans and wildlife can coexist in natural areas. The flexibility exhibited by these animals is a hopeful sign that such coexistence is possible, even in busy, urbanized regions.

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