Presentation Title

Mapping prickly pear cactus along the riverbed of Eaton Canyon

Faculty Mentor

Rhea Presiado

Start Date

17-11-2018 3:00 PM

End Date

17-11-2018 5:00 PM

Location

CREVELING 65

Session

POSTER 3

Type of Presentation

Poster

Subject Area

behavioral_social_sciences

Abstract

Introduction:

The San Gabriel Mountains in California are home to a diverse selection of creatures and plant life. Eaton Canyon in particular is made up of several different life zones: Riparian, oak woodland, chaparral, and the pine forest life zone. Oak trees and cacti are both seen along different points of the Eaton Canyon hiking trail. Specifically on the trail is the Opuntia most commonly known as the prickly pear cactus, a xerophytic plant that can produce about 200-300 species and mainly grows in arid and semiarid zones. Although traditionally appreciated for its pharmacological properties by the Tongva, the cacti pear is hardly recognized as medicine now because of the lack information scientists have to prove its medical uses (Chauhan 2010). Early historic data indicated that the Native Americans relied on the prickly pear cactus for food, medicine, a source for needles, containers, and water( Prudence 2003). The thorns of the prickly pears have a different numbers of areoles, a specialized axillary or lateral bud, a short shoot or branch that produce spines and hairs and can produce new stems, and flowers, or fruits, which allow for the reproduction of more plants (Chauhan 2010). Typically, the prickly-pear cactus of Southern California prefers to grow with other chaparral shrubbery due to its ability to sustain dry conditions (Parfitt 2012); Recently however, the Coastal Prickly Pear Cacti have become abnormally close to what is considered the riparian life zone. One can argue that the cacti began to grow in these areas due to the long drought in Southern California. Due to these shifts in the ecosystem, the Coastal Prickly Pear cacti have now begun growing on the raised terraces of dried river beds. The purpose of this research project is to uncover just how many of these cacti are now growing in riverbeds, and to question whether there are now more cacti by the river compared to their designated habitat.

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Nov 17th, 3:00 PM Nov 17th, 5:00 PM

Mapping prickly pear cactus along the riverbed of Eaton Canyon

CREVELING 65

Introduction:

The San Gabriel Mountains in California are home to a diverse selection of creatures and plant life. Eaton Canyon in particular is made up of several different life zones: Riparian, oak woodland, chaparral, and the pine forest life zone. Oak trees and cacti are both seen along different points of the Eaton Canyon hiking trail. Specifically on the trail is the Opuntia most commonly known as the prickly pear cactus, a xerophytic plant that can produce about 200-300 species and mainly grows in arid and semiarid zones. Although traditionally appreciated for its pharmacological properties by the Tongva, the cacti pear is hardly recognized as medicine now because of the lack information scientists have to prove its medical uses (Chauhan 2010). Early historic data indicated that the Native Americans relied on the prickly pear cactus for food, medicine, a source for needles, containers, and water( Prudence 2003). The thorns of the prickly pears have a different numbers of areoles, a specialized axillary or lateral bud, a short shoot or branch that produce spines and hairs and can produce new stems, and flowers, or fruits, which allow for the reproduction of more plants (Chauhan 2010). Typically, the prickly-pear cactus of Southern California prefers to grow with other chaparral shrubbery due to its ability to sustain dry conditions (Parfitt 2012); Recently however, the Coastal Prickly Pear Cacti have become abnormally close to what is considered the riparian life zone. One can argue that the cacti began to grow in these areas due to the long drought in Southern California. Due to these shifts in the ecosystem, the Coastal Prickly Pear cacti have now begun growing on the raised terraces of dried river beds. The purpose of this research project is to uncover just how many of these cacti are now growing in riverbeds, and to question whether there are now more cacti by the river compared to their designated habitat.