Aquatic Invertebrates :: essays research papers

Outline for a reportAquatic namby-pambys Used to Classify decant HealthEcosystemAll things contained in an environmentWater (input and output)Climate daylightPlant lifeClear CuttingClear Cutting seriously cause all aspects of an ecosystemMaine is, per capita, the most firmly logged state in the continental U.S.why Clear Cutting is UsedSimpleCreates a uniform forest to harvest in 40 days or soEasy to plantCheap to Maintain (pesticides)Clear Cutting Impacts on catameniasClear Cutting seriously effects stream ecosystemsThe effects of clear cutting can be felt on stream ecosystems for up to 60 yearsThe First Five Years After a Clear CutThis time finale is actually beneficial in most aspects of stream animal (vertebrate and invertebrate) healthThe growth in CWD creates resources for lifeNutrients in force(p) for aquatic species increaseNitrogen levels increase 40 timesPotassium levels increase 11 timesAfter Five YearsThe negative effects of clear cutting begin to be feltIncreas e in ready growing vegetation catches nutrientsIncreased solar radiation leads to increase wet temperaturesWith no protection, water temperatures drop drastically at nightAfter Five Years (continued)Packed soil and new vegetation lead to increased water inputLeading to higher(prenominal) peak flows and washing out CWD and boulders (habitats)The stream widens and becomes shallowerOverall homogenization of the stream occursSecond GrowthAfter 30-40 years, fleck growth forests developThe stream ecosystem stabilizesStream InvertebratesStream invertebrates have adapted to the harsh stream environmentMayflies are flattened from top to bottom, allowing them to swim fast in low current areasBlackflies divulge a substance to hold fast themselves to rocks when the current is strongMany aquatic insects have tarsal claws used to attach themselves to rocks to avoid the currentIdentifying Stream fictitious character with Stream InvertebratesThese adaptations have led to species that easily s urvive in polluted streams and those that dontStreams can be classified by the types of insects in them at that place are 3 different categories of aquatic invertebrates when referring to stream healthInvertebrate Body PartsHealthy Stream InvertebratesInvertebrates that live in a estimable stream are classified as Group One TaxaHealthy streams contain high biodiversitySome examples are...stone fly1/2 to 1.5 progresses long2 tails6 legs with hooked tipsCaddisflyUp to 1 inchShell made of mud sticks or dainty rocks6 hooked legsDifferent Caddisfly Shells flick Beetle1/4 inch long6 legsOval body covered with tiny hairs dayfly1/4 to 1 inch long2 or 3 tails6 large hooked legsOften confused with the stoneflyModerately Healthy Stream InvertebrateInvertebrates that live in moderately salutary streams are classified as Group Two TaxaModerately healthy streams support a lower offspring and diversity of speciesSome examples are...CrayfishUp to 6 inches long8 legs, 2 clawsDragonflyAquatic I nvertebrates essays look into papers Outline for a reportAquatic Invertebrates Used to Classify Stream HealthEcosystemAll things contained in an environmentWater (input and output)ClimateDaylightPlant lifeClear CuttingClear Cutting seriously effects all aspects of an ecosystemMaine is, per capita, the most heavily logged state in the continental U.S.Why Clear Cutting is UsedSimpleCreates a uniform forest to harvest in 40 years or soEasy to replantCheap to Maintain (pesticides)Clear Cutting Impacts on StreamsClear Cutting seriously effects stream ecosystemsThe effects of clear cutting can be felt on stream ecosystems for up to 60 yearsThe First Five Years After a Clear CutThis time period is actually beneficial in most aspects of stream animal (vertebrate and invertebrate) healthThe increase in CWD creates resources for lifeNutrients good for aquatic species increaseNitrogen levels increase 40 timesPotassium levels increase 11 timesAfter Five YearsThe negative effects of clear cu tting begin to be feltIncrease in fast growing vegetation catches nutrientsIncreased solar radiation leads to increased water temperaturesWith no protection, water temperatures drop drastically at nightAfter Five Years (continued)Packed soil and new vegetation lead to increased water inputLeading to higher peak flows and washing out CWD and boulders (habitats)The stream widens and becomes shallowerOverall homogenization of the stream occursSecond GrowthAfter 30-40 years, second growth forests developThe stream ecosystem stabilizesStream InvertebratesStream invertebrates have adapted to the harsh stream environmentMayflies are flattened from top to bottom, allowing them to swim fast in low current areasBlackflies produce a substance to attach themselves to rocks when the current is strongMany aquatic insects have tarsal claws used to attach themselves to rocks to avoid the currentIdentifying Stream Quality with Stream InvertebratesThese adaptations have led to species that easily sur vive in polluted streams and those that dontStreams can be classified by the types of insects in themThere are 3 different categories of aquatic invertebrates when referring to stream healthInvertebrate Body PartsHealthy Stream InvertebratesInvertebrates that live in a healthy stream are classified as Group One TaxaHealthy streams contain high biodiversitySome examples are...Stonefly1/2 to 1.5 inches long2 tails6 legs with hooked tipsCaddisflyUp to 1 inchShell made of mud sticks or small rocks6 hooked legsDifferent Caddisfly ShellsRiffle Beetle1/4 inch long6 legsOval body covered with tiny hairsMayfly1/4 to 1 inch long2 or 3 tails6 large hooked legsOften confused with the StoneflyModerately Healthy Stream InvertebrateInvertebrates that live in moderately healthy streams are classified as Group Two TaxaModerately healthy streams support a lower number and diversity of speciesSome examples are...CrayfishUp to 6 inches long8 legs, 2 clawsDragonfly