chapter 42
ecosystem
all the organisms living in a community
two main processes involved in the dynamics of an ecosystem
energy flow and chemical cycling
energy flows ____ ecosystems while matter cycles ____ them
through, within
law of conservation of mass
matter cannot be created or destroyed
ecosystems are ___ systems
open
how do energy and nutrients pass through the trophic levels
primary producers > primary consumeers> secondary consumers> tertiary consumers
detrivores or decomposers
consumers that derive energy from detritus (nonliving organic matter)
primary production
amount of energy converted to chemical energy by autotrophs during a given time period
the extent of photosynthetic production ___
sets the spending limit for the energy budget of an ecosystem
the amount of solar radiation reaching earths surface _____
limits the photosynthetic output of ecosystems
gross primary production
total primary production of an ecosystem
net primary production
GPP minus the energy used by primary producers for their autotrophic respiration (usually half GPP)
key measurement for production
net primary production
standing crop
total biomass of photosynthetic autotrophs at a given time
most productive ecosystems
rainforests estuaries and coral reefs
marine ecosystems are relatively ____ productive
unproductive per unit area, but very large so contribute a lot
net ecosystems production
measure of the total biomass accumulated during that time
NEP equation
GPP minus the total respiration of all organisms in the system (not just producers)
why is NEP useful
because its value determine whether an ecosystem is gaining or losing carbon over time
what controls primary production in water ecosystems
nutrients and light
limiting nutrient
the element that must be added for production to increase in an area
typical limiting nutrients in aquatic ecosystems
nitrogen and phosphorous
areas of upwelling have ___ productivity
high productivity
eutrophication
result of sewage runoff in lakes
effects on primary production in terrestrial ecosystems
temperature and moisture
actual evapotranspiration
the water annually transpired by plants and evaporated from a landscape
a limit on primary production in terrestrial ecosystems
soil nutrients (nitrogen)
energy transfer efficiency between trophic levels
10%
production efficiency
the fraction of energy stores in food not used for respiration
trophic efficiency
the percentage of productioni transferred from one trophic level to the next (5-20 %)
percent of chemical energy that reaches a tertiary consumer
0.1
biogeochemical cycles
nutrient circuits in ecosystems
restoration ecology two key strategies
bioremediation, biological augmentation
bioremediation
use of living organisms to detoxify ecosystems
biological augmentation
uses organisms to add essential materials to a degraded ecosystem
| Cuestionario |
|---|
| Common -ER Verbs |
| Western Front Medicine |
| Engelska Unit 2 + 3 |
| mates |
| Diabetes |
| biología |
| Pensamiento Crítico |
| Genetik & Genteknik |
| La 1ère Guerre Mondiale |
| CellsGuess the answer/formula |
| Biologia |
| VOCABULARI |
| celler |
| Pita |
| Ausdrücke |
| verbs past simpleirregular verbs |
| važni verbi |
| boje |
| Amidonnerie et glucoserie |
| BIOLOGIA 10 ano |
| biologia 10ano |
| biologia e geologia |
| Tourelleau |
| Anglais🇬🇧 |
| household choresjust a test |
| CN20 |
| subduction |
| STORIASTORIA LEUROPA SOTTO ASSEDIO SU OTTONE |
| Chapter 17 Special Senses |
| Spanish speaking questions - theme 3 |
| Vocabulaire |
| filosofía |
| neuroanatomia |
| Irregular Verbs |
| anglais |
| X Plays |
| F Plays |
| enfermedades de porcinos |
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| Curso de uñasForma de estudio |
| identificación de imágenes de materiales de laboratorio de química |
| tipps de textos |
| identificar imagenes de materiales de laboratorio de química |
| astronomíam |
| anatomiahuesos |
| biologia |
| sistemas |
| CC1 |
| tema 9 |
| Etica y moral |
| la familia matrimonio y uniones de hecho crisis matrimoniales y tipos unioneámbi - copia |
| la familia matrimonio y uniones de hecho crisis matrimoniales y tipos unioneámbiderecho de familia y de la seguridad social en el trabajo social 😀 |
| formulasformulas |
| chapter 41species interactions |
| revolution de francais |
| hustoria u |
| Dissertation Français |
| Evolutionah |
| vokabeln latein 1-11 |
| Trastornos psiquia |
| Auto-écoleApprentisage generale permis de conduire |
| Ortografía |
| Vocabulaire |
| Antidiabétiques |
| Geografia |
| pharmaco |
| définition |
| caractéristiques de la saveur sucrée Madhura |
| les effets des saveurs sur les Doshas et les éléments contenus |
| Topic 2 - Computer Organization - FDE and memory - Flashcards |
| Topic 2 - Computer Organization - FDE and memory - Flashcards |
| statistica 1 |
| statistica |
| primeros auxilios |
| mapeh semis |
| L'éjecteur |
| MEMBRANE BIOLOGICHE |
| Topic 1 - System Fundamentals - Flashcards |
| Charge militaire |
| Topic 1 - System Fundamentals - Quiz |
| VITAMINE |
| Spanish speaking questions - theme 2 |
| . |
| chapter 40ecology |
| geral |
| examenguia para practicar |
| PAMELITA :PResponde correctamente lo que se te pide, si respondes mal 5 cuestionamientos, me compras una aguita jaja :p |
| Special Senses Lab |
| Enzimas |
| EMOGLOBINA e MIOGLOBINA |
| Reading quiz #1 Judiasm |
| MirandaLongitud de la médula espinal en el hombre |
| Motivation für Marc |
| leyes |
| verbos ㅏ가다 - 가요 |
| italiaans |
| HISTO 3 |
| quelles sont les caractéristiques du curcuma en ayurveda |
| quelles sont les caractéristiques des épices en ayurvéda ? |
| quels sont les aliments associés aux saveurs en ayurveda ? |
| quelles sont les caractéristiques des six saveurs en ayurveda |
| quelles sont les 6 saveurs en ayurveda |
| English - copia |
| Semana Cultural |
| biología |
| linfoma |
| Ordinario Infectología |
| Final vocab quiz |
| proceso de planeación |
| geografia |
| me compras un javon de cartónlo necesito es lo que me hace falta para mi cuarto |
| geografiajekenejek |
| Examen de InferencialTema diseño de experimentos, Diseño de un factor con un analisis de varianza Anova, presentaciom de resultados con Grafico de Medias y Prueba de Multiples Rangos Tukey. |
| MatemáticasTarea de matemáticas 5 grado de primaria |
| Who Said That? |
| simple past - copia |
| English |
| Quimica |
| simple pastsimple past afirmative, negativo y interrogativo .
si o no si es la forma correcta |
| polisci final |
| Español |
| planet earth questions |
| American Government Branchs |
| English vocabulary B1 |
| English Vocabulary level A2 |
| GiurisprudenzaLa costituzione è l'atto normativo fondamentale che definisce la natura, la forma, la struttura, l'attività e le regole fondamentali di un'organizzazione, ovvero il vertice della gerarchia delle fonti... |
| Ingles |
| ekologi |
| Prefixes |
| English vocabulary level A1 |
| Getallen |
| Cooking ingredients and expressions |
| genetic variation and mutations |
| pratiques et réalité sociale |
| new jobits for work |
| Noun formation |
| Hector AH |
| Injuries |
| Obras |
| verbos |
| l'ouverture vers d'autres traditions juridiques |
| Regular Verbs |
| german seperable |
| Generación del 27 |
| german adjectives 2 |
| zodziai RUBAI |
| german adjectives |
| partie 1 : les racines anciennes de la familles (1er siecle a 5eme) |
| Physical activities |
| meios de transporte |
| mathematique |
| Natural disasters |
| spelling bee #1 |
| BUSINESS STATISTIC |
| Parts of the city |
| reflexão e absorção da luz |
| Histoire du droit de la famille et des personnes |
| dna vs rna structure |
| replication and transcription |
| Evolution |
| Figures of SpeechIf like me you're having a hard time remembering the figures of speech, here's a little something to help. |
| Voc Anglais 3 |
| mitosis |
| Voc Anglais 2 |
| meiosis |
| mitosis |
| notas musicales |
| Voc Anglais 1 |
| Revolutionerna instuderingsfrågor & begrepp |
| in |
| Kapha Dosha in Ayurveda |
| les 6 saveurs en ayurvéda |
| Quels sont les déséquilibres et maladies du dosha Vata |
| Désequilibre du dosha Vata |
| dosha PITTA |
| dosha Kapha ayurveda |
| ayurveda |
| Pronombres personales |
| Pam |
| Subjects and academic fields |
| Examen Comipems |
| Natural habitats |
| Ways of transport |
| Jobs |
| informática |
| Examen Geografía |
| Meals of the day |
| Weather |
| Holidays |
| Parts of the home |
| Population quiz |
| génesis 41 |
| sobré el agua |
| inter |
| interculturel |
| vocabulario ruso |
| interculturel |
| planet earth vocab |
| Escribe la palabra rusa según la pronunciaciónpalabras |
| Family |
| examen |
| Aerobic and anaerobic respiration |
| Respiración celular |
| ttm parcial 2 |
| photosynthesis |
| Tejido Epitelialla histología es la ciencia que estudia a los tejidos ogánicos |
| Área, perímetro y volumenso |
| Vocabulario - Animales |
| Week 2 |
| week 1 |
| cuerpo de animales en ingles |
| Abbreviations |
| geo 2 |
| AK >:( |
| latin chap 5 |
| v 17 |
| pharmacocinétique |
| Hipertension ArterialEs el factor de riesgo mas comun para enfermedades cardiovasculares y fuerte. En mexico 25.5 millones de hipertensos: -60% sabe que tiene HA.
-40% NO sabe aue tiene HA. |
| Spanish vocabulary |
| Trombosis venosapresencia de un trombo en una vena y la respuesta inflamataria en la pared vascular que lo acompaña - puede originar embolia pulmonar |
| WHF 5 |
| chem 1 |
| Vocabulario 3vocabulario |
| Phrasal verbsidioms |
| venas varicosascuando las valvulas no funcionan correctamente, la sangre regresa por la vena. Esta se inflama por la sangre que se acomula allí, lo cual provoca las varices con el paso del tiempo |
| Engelska del 1 |
| Giving AdviceMaking recommendation |
| Vocabulario 2 |
| roles noyaux hypothalamusapprendre les differents roles des noyaux |
| vocabularioVocabulario rn ingles |
