Northern Leopard Frog

Relationships: The northern leopard frog is an important predator for its invertebrate prey, such as worms and flies. Northern Leopard Frogs often have competition with other organisms. One example is with the American Bullfrog. Studies in Wyoming have shown that the number of Northern Leopard Frogs shrink where there are Bullfrogs. The Northern Leopard Frog is not parasitic, nor does it have any mutualistic or other symbiotic relationships. Food Relationships: Northern Leopard Frogs are carnivores

Habitat Connectivity and the Northern Leopard Frog In their movements, northern leopard frogs can encounter native grass prairie as well as crop fields and grazed pastures that potentially can act as barriers to their movements. Since grassland prairie and wetlands in the PPR have been greatly reduced, the wetlands that are highly depended on by the northern leopard frog to complete its’ life cycle in the prairie pothole region have become separated by greater distances. Depending on the cover type

and metabolic state becomes at risk (Pough et al. 1983). As with movement rates, water loss rates are species specific. The northern leopard frog has a higher loss rate than the marine toad due to the northern leopard frog’s higher diffusion rate of water through their permeably skin (Bentley & Yorio 1976). Also, toads typically live a more terrestrial life than most frogs and therefore have developed mechanisms to reduce water losses. Land-cover type and associated micro-environments play a big

Anatomy of the Frog Rana pipiens Taryn Murray 2/16/16 Research paper Mr. Hillman DEDICATION I dedicate this research paper to my parents, Kim and Theron Murray, my siblings, Krystin Murray, Tanner Daulton, Kimberly Murray, Madison Houser, and McKenna Murray. An old silent pond, A frog jumps into the pond, Splash! Silence again. Table of Contents Natural History……………………………………………………… 1  Natural History The Rana pipien is a frog more commonly

12 September 2015 Fragmentation of the California Red-legged Frog Environment. The issue I will be raising is one that might not be familiar to all who reside in California and that is primarily focused around the fragmentation and overall mutilation of areas that keep and protect the species Rana Draytonii, otherwise known as the California Red-legged Frog. One of the reasons I raise this issue, is because most importantly “these frogs were named the official state amphibian of California via AB

A compound action potential is the sum of electrical activity produced by all the individual neurons in a nerve that are brought to a critical membrane potential by a local stimulus. This critical membrane potential, referred to as threshold potential, is needed to be reached during depolarization to elicit an action potential. Two sub-threshold potentials occurring in quick succession can summate and cause an action potential to occur even though each individual potential would not trigger an action

Wetlands are areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year. The amount of water saturation plays a tremendous role in determining soil development and the wildlife communities interacting with it, both terrestrial and aquatic. Abiotic and biotic factors such as topography, climate, vegetation, and human disturbance give way to a wide variety of wetlands, but for the most part can be generalized into

By dissecting a frog, one can observe the many systems that enable a frog to function like many other organisms. The systems that were analyzed through dissection were the epidermis, muscles, digestive, urogential, circulatory, and respiratory system. All systems, including the skeletal, and nervous system, were compared to organisms rudimentary and advanced to the frog. The life cycle and taxonomy of a frog were also researched during this lab. Through frog dissection, an individual may expand their

Smooth muscle founded in the gastrointestinal tract of the Northern leopard frog, Rana pipiens, contracts through myogenic activity. However, neurotransmitters from the parasympathetic and the sympathetic branches of the autonomic nervous can influence the strength of these myogenic contractions. To explore myogenic activity under the influence of the autonomic control, we examined the contractile activity with and without additions of chemical compounds associated with the autonomic nervous system

Introduction For most species, movement is essential for life. Movement of seeds helps plants disperse, while animals move to forage, reproduce, find alternate habitat types, repopulate areas where they have been extirpated, and maintain genetic diversity needed to adapt to change. If individuals cannot move across a landscape to mix with individuals of other populations, local extinctions can result. Additionally, the smaller a population is, the more vulnerable it is to extinction if that population