Ecology 4

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the male seahorse sea has a bag d n d lower his body near the tail n ade dposita dnd the eggs remain there till q q crias.los emerging new marsupial whose young undeveloped conclude this process in this bag called marsupium n dnd can reach the mammary gland without having q leave that person d d i alrgue shelter. c) of behavior: or behavioral changes cnsiste n d d orgs q behavior can adjust to the environment or move periodically to another when conditions unfavorable environmental patent aqi c ac migration. emigration: exit d one population to another. Immigration: entry d one population to another. migracion: mov newspaper d out i return to a given area [butterflies swallows fish] nichoeco: role plays q sierto habitat in an org. population: all individuals d d q abitan the same species in a given area share a type d q iq alimnto to exchange info reproducirc genetics .* density: the population size n d cn relationship any space or drive d q is the same as the num d d org mong species distribuciondeedades surface or vol .*: No study is important because population d q allows us to infer the future behavior of a group d d orgs, a population qc cn xpand rapides involves a lot d young guys, a stable population distribution will include a more balanced in terms d old na poblancion No decline will have a greater num d old individuals [prereproductiva, reproductive postrerproductiva i] .* distribucionespacial: q orgs integrate a population can be distributed n a ESPACION territory or along three models: a) uniform or ordered spacing occurs n the competition dnd mong mas bn orgs s active or antagonism exist dnd q fosters positive recreation.

b) random: s relativamnt nature odd n l i occurs dnd char homogeneity area presented under these circumstances i puedn orgs cualqier site located n dl area. c) piled up: the most common i individuals tend to form groups d d cn certain volume to protect d i solve common problems like food. proporciondsexos *: x rule gral mong the proportion orgs s balanced obstant not acn nq c are cases more individuals d qd another one sex, n orient ai mas q ombres but muejers c resolved d practice of polygamy in other south Indian d i in the tib polyandry occurs .* tasasdnatalidad: char q nos num idic the NQC orgs d i a population increases, there are two types. a) maxima: tmb optimal absolute or consist fisiologik i n d production maxima teorik new individuals n dnd ideal conditions the only limitation will be the physiological fact. b) actual or realized: increased population n an d the real environmental cndicion or especifik .* tasasdmortalidad: c refers to the num orgs deaths d d d a population, c Xpresa cmo q l num individuals die n d a specified periodcurvasdsobrevivencia .*: i birth mortality indices allow us to establish the survival s DCIR d% d orgs cn l q remain interacting medium. a) curvaconvexa: l indic d d mortality the population remains low till the end is near q dl d period d life orgs. b) concave: c production when indic l i d mortality is high orgs are young. c) line: occurs when l d gral manner indic mantie c d mortality during the life approx cnstandt orgs .* d tasasdcrecimiento : to have knowledge dl d a population growth is a balance ncesarios acr i mong deaths birth to such a degree q affect the intrinsic increment the same d d ahi d q if the birth is num maior q el d cup d deaths crec population will be positive if the num contrary xl d d deaths exceeds births

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