eco module 3 Flashcards
what is ecology
ecology is the study how organisms interact with each other and their environment
what is the goal of ecology
understand distribution and abundance of organisms
what is ethology
the study of character
what did Niko Tinbergen study
geese and egg retrieval behaviours and wasps have visual cues rather than spatial awareness
what did Konrad Lorenz study
geese imprinting (the first organism or big object they see, they follow)
what did Karl von Frisch study
language of bees (waggle dance)
improvement in one trait or behavior comes at the expense of another
fitness trade off
movements in a specific direction in response to a stimulus
taxis
random, undirected movements toward favorable conditions
kinesis
what are the two types of orientation
kinesis and taxis
movement toward a magnetic field
magnetotaxis
produced by a set of molecular mechanisms that cycles on its own and keeps a regular rhythm (can be daily, monthly, or yearly)
biological clocks
daily (diurnal) cycles that are primarily governed by changes in light-dark cycles
circadian clocks
what facilitates habitat selection
movement and migration
long-distance movement of a population associated with change of seasons
migration
what are the three proximate causes of navigation
piloting/map sense, compass orientation, true navigation
what is map sense based on
landmarks
animals have a sense of specific location on earth where they need to go
true navigation
what is the ultimate cause of migration
food availability
what period are birds exposed to songs
sensitive period
what are the two types of inclusive fitness?
direct and indirect
fitness derived from an individual’s own offspring
direct fitness
fitness derived from helping relatives produce more offspring
indirect fitness
all individuals of a given species that live and reproduce in a particular place and time
population
what are the three defining features of a population
size, range, density
a process by which non-signaling behavior patterns evolve to become communicative signals
ritualization
when did atmospheric levels of CO2 start to increase
during the industrial revolution
name of curve that records changing levels of carbon dioxide in the atmosphere over time
Keeling curve
when does CO2 concentration reach its annul high point
in the spring
when does CO2 concentration reach its annual low
in the fall
how is carbon dioxide added to the environment (3)
geological inputs (volcanoes and mid ocean ridges), biological inputs (respiration), human activities
how is carbon dioxide removed from the environment (2)
geological removal (chemical weathering, CO2 reacts with rocks) and biological removal (photosynthesis)
does respiration remain constant throughout the year
yes
what are the two CO2 sources
fossil fuels and industry and land use change
exploitation of preexisting sensory bias
sensory drive
signals are elaborated versions of ordinary behaviors.
Sender precursor
honest signals means signals that are_____
reliable
serves to warn or repel predators (ex. yellow and black snakes are poisonous)
aposematism
self-sacrificing
altruism
highest level of organization in sociality
eusociality