Lab 5 Completed

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School

Georgia State University *

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Course

1401L

Subject

Geography

Date

Jun 22, 2024

Type

docx

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Uploaded by hyvoneJackson

Lab 5: Ecosystems: Energy, Patterns, and Disturbance ENVS 1401L Name: _ I. Our Changing Seasons Video 1 1. Humans have relied on phenology since x.  The time of hunters and gathers. 2. _(x.) _ is causing rhythms of nature to shift.  Increasing global temperature 3. While the caterpillars have adapted to the earlier leafing out period of the oaks, what species that depend on the caterpillar has not adapted as quickly?  Migrating pied flycatcher Bird 4. How could blooming trees, now and in the years to come, fool you as to what season it technically is?  By blooming earlier than expected Video 2 1. What information does the data gathered by the featured scientist (Liana May) on the phenology of the plants in the preserve offer? (1-2 complete sentences)  It provides insight into the timing of plant life cycle events, such as flowering and fruiting, which can be used to study the impact of climate change on plant populations and ecosystems. 2. How is a changing climate encouraging some invasive plants? (1-2 complete sentences)  A changing climate may encourage some invasive plants by creating more favorable conditions for their growth and spread. For example, increased temperatures and changes in precipitation patterns may allow invasive plants to outperform native species and settle in new areas. II. Ecosystems and Disturbance 1

Press release Answer with complete sentences for all questions. 1. What does this study provide new evidence on?  This study provides new evidence on how rising temperatures may reduce the efficiency of the food chain, especially in aquatic ecosystems. We show that a 4°C increase in temperature may significantly reduce the energy transfer of plankton's food web, cascading into larger animals at the top of the food chain. 2. What is the significance of this and what other questions remain?  The importance of this study lies in demonstrating a direct link between rising temperatures and reduced energy transfer in the food chain. 3. What is the study's major “takeaway” (lesson)?  Rising temperatures can disrupt energy flow through the food chain, reducing efficiency and potentially endangering the survival of larger animals that rely on this energy transfer. 4. Was this study conducted with environmental (real-world) or controlled (lab/ experimental) samples?  The study was conducted using environmental samples. The researchers measured the nitrogen transfer efficiency of freshwater plankton exposed to a seven-year outdoor warming experiment in the U.K. Article Title of article: Blue Carbon from the Past Forecasts the Future Year of publication: 2020 Journal name: Science. Questions Section of article Your Answer (in complete sentences) 2

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