Life Sciences Commons^™

The Effect Of Physical Stress Signals On Conspecific Interactions In Green-And-Black Poison Frogs (Dendrobates Auratus), Gabriella E. Chan, Maxwell A. Kenyon, Summer Ngo, Lee B. Kats

Seaver College Research And Scholarly Achievement Symposium

Amphibian declines have been a major focus of the scientific community for nearly three decades. Many studies describe the leading causes of amphibian decline related to disease, with chytridiomycosis as the most notable example. However, little is known about behavioral conspecific interactions among ill or stressed amphibians, particularly neotropical species. Previous observational research on poison frogs determined that stressed Dendrobates auratus flip onto their backs in a reaction that is similar to fainting in other species. In this study, we examine conspecific interactions of green-and-black poison frogs (D. auratus) with “healthy” and “sick” model frogs, in order to determine a ...

Uvb Avoidance In Dendrobates Azereus Tadpoles, Matthew Sturtevant, Lee Kats, Agustin Vargas, Arthur Garnica

Seaver College Research And Scholarly Achievement Symposium

Most frogs are nocturnal, but dart frogs (Dendrobatidae) are diurnal and lack scales or hair that would protect them from UVB rays. Previous studies have demonstrated that adult dart frogs avoid UVB light. The purpose of this experiment was to test whether dart frog larvae would avoid UVB light when compared to local nocturnal treefrog larvae. For the experiment we used tadpoles of Dendrobates azureus and Pseudacris regilla. The tadpoles were put in tubs with a submerged shelter and exposed to 3 lighting conditions: UVB, no light and visible light. The tadpoles were exposed to only one lighting condition each ...

Mechanism Of Nitric Oxide Induced Sympatholysis In Rat Soleus Feed Arteries, Madelyn Whitaker, Jeffrey Jasperse, Tanner Heckle

Seaver College Research And Scholarly Achievement Symposium

During exercise, the neurotransmitter norepinephrine (NE) binds to arterial adrenergic receptors to cause vasoconstriction, yet arteries and arterioles constrict less to sympathetic stimulation in contracting compared to resting skeletal muscle (sympatholysis). Previous evidence indicates that nitric oxide (NO) can be sympatholytic, but the mechanism is unknown. We hypothesized that NO causes sympatholysis in rat soleus muscle feed arteries, that NO is released from vascular endothelial cells by increased shear stress, and that NO acts through a guanylyl cyclase intracellular signaling pathway. Soleus feed arteries (n = 12 per group) were isolated from male Sprague-Dawley rats and cannulated on two glass micropipettes ...

CóMo Se Fabrican CosméTicos Naturales, Oscar Vila

Oscar Vila

Climate Change, Cattle, And The Challenge Of Sustainability In A Telecoupled System In Africa, Tara S. Easter, Alexander K. Killion, Neil H. Carter

Neil Henderson Carter

Information, energy, and materials are flowing over greater distances than in the past, changing the structure and feedbacks within and across coupled human and natural systems worldwide. The telecoupling framework was recently developed to understand the feedbacks and multidirectional flows characterizing social and environmental interactions between distant systems. We extend the application of the telecoupling framework to illustrate how flows in beef affect and are affected by social-ecological processes occurring between distant systems in Africa, and how those dynamics will likely change over the next few decades because of climate-induced shifts in a major bovine disease, trypanosomosis. The disease is ...

1919 - Bradley Quadrant Topographical Survey, Monterey And San Luis Obispo Counties - Usgs

Groundwater Basin Maps

1919 U.S. Geological topographical survey depicting the Bradley Quadrangle, Monterey and San Luis Obispo counties, California, reflecting landmarks, Salinas River, creeks, ranchos, railways and roads.

1919 - King City Quadrangle Topographical Survey, Monterey County - Usgs

Groundwater Basin Maps

U.S. Geological topographical survey depicting the King City Quadrangle, Monterey County, California, reflecting landmarks, Salinas River, creeks, ranchos, railways and roads.

1919 - Paso Robles Quadrangle Topographical Survey, San Luis Obispo County - Usgs

Groundwater Basin Maps

A 1919 Geological topographical survey depicting the Paso Robles Quadrangle, San Luis Obispo County, California, reflecting landmarks, Salinas River, creeks, ranchos, railways and roads.

1919 - San Miguel Quadrangle Topographical Survey, Monterey And San Luis Obispo Counties - Usgs

Groundwater Basin Maps

U.S. Geological topographical survey depicting the San Miguel Quadrangle, Monterey and San Luis Obispo counties, California, reflecting landmarks, Salinas River, creeks, ranchos, railways and roads.

1920 - Jamesburg Quadrangle Topographical Survey, Monterey County - Usgs

Groundwater Basin Maps

1919 U.S. Geological topographical survey depicting the Jamesburg Quadrangle, Monterey County, California, reflecting landmarks, Salinas River, creeks, ranchos, railways and roads.

1921 - Lucia Quadrangle Topographical Survey, Monterey County - Usgs

Groundwater Basin Maps

1921 U.S. Geological topographical survey depicting the Lucia Quadrangle, Monterey County, California, reflecting landmarks, Salinas River, creeks, ranchos, railways and roads.

1919 - Adelaida Quadrangle Topographical Survey, San Luis Obispo County - Usgs

Groundwater Basin Maps

1919 - U.S. Geological topographical survey depicting the Adelaida Quadrangle, San Luis Obispo County, California, reflecting landmarks, creeks, ranchos, railways and roads.

1919 - Bryson Quadrangle Topographical Survey, Monterey County - Usgs

Groundwater Basin Maps

A 1919 U.S. Geological topographical survey depicting the Bryson Quadrangle, Monterey County, California, reflecting landmarks, creeks, ranchos, railways and roads

1919 - Capitola Quadrangle Topographical Survey, Santa Cruz And Monterey Counties - Usgs

Groundwater Basin Maps

1919 U.S. Geological topographical survey depicting the Capitola Quadrangle, Santa Cruz and Monterey counties, California, reflecting landmarks, creeks, ranchos, railways and roads.

1919 - Junipero Serra Quadrangle Topographical Survey, Monterey Countyu.S. Geological Topographical Survey Of San Luis Obispo Quadrangle. - Usgs

Groundwater Basin Maps

U.S. Geological topographical survey depicting the Junipero Serra Quadrangle, Monterey County, California, reflecting landmarks, creeks, ranchos, railways and roads.

1919 - San Simeon Quadrangle Topographical Survey, San Luis Obispo County - Usgs

Groundwater Basin Maps

A 1919 U.S. Geological topographical survey depicting the SanSimeon Quadrangle, San Luis Obispo County, California, reflecting landmarks, creeks, ranchos, railways and roads.

1921 - Cape San Martin Quadrangle Topographical Survey, Monterey And San Luis Obispo Counties - Usgs

Groundwater Basin Maps

1921 U.S. Geological topographical survey depicting the San Martin Quadrangle, Monterey and San Luis Obispo counties, California, reflecting landmarks, creeks, ranchos, railways and roads.

1921 - Metz Quadrangle Topographical Survey, Monterey And San Benito Counties - Usgs

Groundwater Basin Maps

1921 U.S. Geological topographical survey depicting the Metz Quadrangle, Monterey and San Benito counties, California, reflecting landmarks, Salinas River, creeks, ranchos, railways and roads.

1954 - Moss Landing Quadrangle Topographical Survey, Monterey County - Usgs

Groundwater Basin Maps

1954 U.S. Geological topographical survey depicting the Moss Landing Quadrangle, Monterey County, California, reflecting landmarks, creeks, ranchos, railways and roads.

A Naturalist’S Guide To The Great Plains, Paul A. Johnsgard

Zea E-Books

This book documents nearly 500 US and Canadian locations where wildlife refuges, nature preserves, and similar properties protect natural sites that lie within the North American Great Plains, from Canada’s Prairie Provinces to the Texas-Mexico border. Information on site location, size, biological diversity, and the presence of especially rare or interesting flora and fauna are mentioned, as well as driving directions, mailing addresses, and phone numbers or internet addresses, as available. US federal sites include 11 national grasslands, 13 national parks, 16 national monuments, and more than 70 national wildlife refuges. State properties include nearly 100 state parks and ...