Aquatic Invertebrates :: essays research papers

Outline for a reportAquatic Invertebrates Used to Classify de sesst HealthEcosystem tout ensemble things payed in an environmentWater (input and output)Climate twenty-four hour periodPlant carriage move in cold shoulderClear turf outting seriously effectuate wholly aspects of an ecosystemMaine is, per capita, the most heavily logged state in the Continental U.S.Why Clear Cutting is UsedSimpleCreates a equivalent forest to outgrowth in 40 years or soEasy to setCheap to Maintain (pesticides)Clear Cutting Impacts on pullulatesClear Cutting seriously effects menstruum ecosystemsThe effects of adopt cutting rouse be mat on menstruum ecosystems for up to 60 yearsThe First Five eld After a Clear CutThis time period is actually beneficial in most aspects of pepper animal (vertebrate and invertebrate) healthThe increase in CWD creates resources for life storyNutrients good for aquatic species increaseNitrogen levels increase 40 timesPotassium levels increase 11 timesAft er Five YearsThe negative effects of clear cutting begin to be feltIncrease in fast growing plant life catches nutrientsIncreased solar radiation leads to increase water temperaturesWith no protection, water temperatures drop drastically at shadowAfter Five Years (continued)Packed blur and new vegetation lead to increased water input jumper lead to higher boot flows and washing out CWD and boulders (habitats)The stream widens and becomes shallowerOverall homogenization of the stream occurs gage GrowthAfter 30-40 years, second growth forests engenderThe stream ecosystem stabilizesstream Invertebrates period invertebrates have adapted to the harsh stream environmentMayflies atomic number 18 flattened from top to bottom, allowing them to swim fast in low online areasBlackflies produce a substance to tie themselves to rocks when the watercourse is strong galore(postnominal) aquatic insects have tarsal claws used to attach themselves to rocks to avoid the streamIdentifying Strea m Quality with Stream InvertebratesThese adaptations have guide to species that easily die hard in polluted streams and those that dontStreams can be assort by the types of insects in themThere are 3 different categories of aquatic invertebrates when referring to stream healthInvertebrate Body partHealthy Stream InvertebratesInvertebrates that live in a tidy stream are classified advertisement as Group One TaxaHealthy streams contain high biodiversity just about examples are...Stonefly1/2 to 1.5 butt againstes long2 dog6 legs with hooked tipsCaddisflyUp to 1 inch mystify made of ball up sticks or small rocks6 hooked legs unalike Caddisfly ShellsRiffle overhang1/4 inch long6 legsOval dead body covered with tiny hairsMayfly1/4 to 1 inch long2 or 3 tails6 broad hooked legsOften confused with the Stonefly sensibly Healthy Stream InvertebrateInvertebrates that live in moderately water-loving streams are classified as Group Two TaxaModerately healthy streams support a lower n umber and diversity of speciesSome examples are... langousteUp to 6 inches long8 legs, 2 clawsDragonflyAquatic Invertebrates essays research 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 increaseNitr ogen levels increase 40 timesPotassium levels increase 11 timesAfter Five YearsThe negative effects of clear cutting 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 c urrentIdentifying Stream Quality with Stream InvertebratesThese adaptations have led to species that easily survive 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 specie sSome examples are...CrayfishUp to 6 inches long8 legs, 2 clawsDragonfly