Tag: ecosystems

HSus 1: Forecasting Disasters (MS), HSus 1: Human Activity (HS), HSus 2: Managing Resources (HS), HSus 3: Human/Ecosystem Interactions (HS), Human Sustainability, Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), S&F 1: DNA to Proteins (HS), S&F 4: Stimuli Response (MS), S&P 1: Atoms & Molecules (MS), S&P 4: Molecule Traits (HS), Structure & Properties of Matter, Structure and Function

Rotifers Paralyzing Schistosomes

GwynneL.

A rotifer-derived paralytic compound prevents transmission of schistosomiasis to a mammalian host SUMMARY: Researchers discovered that a new molecule produced by the rotifer, Rotaria rotatoria, paralyzes cercariae. Cercariae are the free-living/infectious stage of the flatworm Schistosoma, the cause of schistosomiasis. R. rotatoria live on the shell of freshwater snails and secrete a compound scientists have… Continue reading Rotifers Paralyzing Schistosomes

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Chemical Reactions, CR 4: Driving Reactions (HS), Earth Science, Earth's System, ES 1: Materials/Energy Flow (MS), ES 4: Carbon Cycling (HS), Life Science, M&E 4: Biogeochemical Cycles (MS), M&E 5: Matter/Energy Cycles (HS), M&E 6: Biogeochemical Cycles (HS), Matter & Energy in Organisms/Ecosystems, Physical Science, S&F 1: Cells (MS), S&F 2: Cell Function (MS), Structure and Function

Field and lab conditions alter microbial enzyme and biomass dynamics

GwynneL.

Field and lab conditions alter microbial enzyme and biomass dynamics driving decomposition of the same leaf litter SUMMARY: This study looked at the rate of decay between litter in lab conditions and natural conditions. They used fallen leaves from dogwood trees, oak trees, maple trees, and maple-oak tree mix. Results showed quite a difference in… Continue reading Field and lab conditions alter microbial enzyme and biomass dynamics

Earth Science, HSus 2: Monitoring Human Impact (MS), HSus 3: Human/Ecosystem Interactions (HS), HSus 4: Evaluating Solutions (HS), HSus 5: Showing Human Impact (HS), Human Sustainability, Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), IR 2: Affecting Biodiversity (HS), Life Science

Using ciliates as indicators

GwynneL.

Protozoa ciliates community structure in urban streams and their environmental use as indicators SUMMARY: Three urban stream samples were collected during both dry and rainy seasons in Brazil. Ciliates were classified and identified in each stream. The relationships between the ciliates, abiotic factors, and biotic factors are discussed in the last section of the paper.… Continue reading Using ciliates as indicators

HSus 1: Human Activity (HS), HSus 3: Human/Ecosystem Interactions (HS), HSus 4: Evaluating Solutions (HS), HSus 5: Showing Human Impact (HS), Human Sustainability, Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), IR 2: Affecting Biodiversity (HS), IR 2: Preserving Biodiversity (MS), IR 6: Human Impact Solutions (HS), Life Science

Conservation of biodiversity to improve human well-being

GwynneL.

Conservation of biodiversity as a strategy for improving human health and well-being SUMMARY: This article looks at whether or not increasing biodiversity in an ecosystem can decrease the prevalence of diseases. While the idea seems simple (more hosts for the disease, less incidences of the disease spreading to people), the issue is much more complicated.… Continue reading Conservation of biodiversity to improve human well-being

Chemical Reactions, CR 2: Energy in Reactions (HS), CR 4: Driving Reactions (HS), E 1: Energy Flow (HS), Earth Science, Earth's System, Energy, ES 1: Materials/Energy Flow (MS), Life Science, M&E 4: Biogeochemical Cycles (MS), Matter & Energy in Organisms/Ecosystems, Physical Science, S&P 3: Heat & Reactions (MS), Structure & Properties of Matter, W&C 3: Global Warming Causes (MS), Weather and Climate

Environmental impacts on the diversity of methane-cycling microbes and their resultant function

GwynneL.

Environmental impacts on the diversity of methane-cycling microbes and their resultant function SUMMARY: There are two types of microbes that are involved in methane cycling: ones that produce methane (methanogens) and ones that use methane as a source of energy and convert it to carbon dioxide (methanotrophs). This article review looked at all the different… Continue reading Environmental impacts on the diversity of methane-cycling microbes and their resultant function

Inheritance & Variation of Traits, Inheritance 1: Behavior and Reproduction (MS), Inheritance 1: Mitosis (HS), Inheritance 4: Population Genetics (HS), Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), IR 2: Affecting Biodiversity (HS), Life Science, M&E 3: Food Webs (MS), M&E 5: Changing Ecosystems (MS), Matter & Energy in Organisms/Ecosystems, Natural Selection & Evolution, NSE 1: Evolution Evidence (HS), NSE 2: Evolution Factors (HS), NSE 3: Trait Selection (HS), NSE 4: Adaption (HS), NSE 4: Fitness (MS), NSE 5: Natural Selection (MS), NSE 5: Population Flux (HS)

De novo origins of multicellularity in response to predation

GwynneL.

De novo origins of multicellularity in response to predation SUMMARY: Chlamydomonas are common, single-celled green algae that are flagellated and can move around. They’re a strange cross between plants and protists. In this study, scientists subjected chlamydomonas to predation by paramecia (common freshwater ciliates) and observed that after about 750 generations, the chlamydomonas took on… Continue reading De novo origins of multicellularity in response to predation