Species Interaction in ECOLOGICAL NETWORKS Flashcards
simplified linear representation of the
transfer of energy and nutrients through
an ecosystem
Food Chain
is a complex and interconnected network of feeding relationships within
an ecosystem.
Food Web
It represents the various ways that organisms in an ecosystem
obtain their food by depicting who eats whom and how energy and nutrients flow
through the ecosystem.
Food Web
He introduced the concept of the ecological niche
Charles Elton
conducted extensive research on food chains
and food webs
Charles Elton
His research emphasized the importance of
predators in controlling prey populations and
maintaining ecological balance.
Charles Elton
He is the founding member of the Nature Conservancy
and played a key role in promoting the
conservation of natural habitats and biodiversity.
Charles Elton
Producers
Primary Consumers
Secondary Consumers
Tertiary Consumers
Quaternary Consumers
Decomposers and Detritivores
Trophic levels
show how different species in an ecosystem are
linked together through predator-prey relationships.
Food Web
depict the interactions between different species
within an ecosystem, showing who eats whom.
Food Web
Food webs show how different species in an ecosystem are
linked together through predator-prey relationships.
Food webs depict the interactions between different species
within an ecosystem, showing who eats whom.
Interconnectedness
Food webs show how different species in an ecosystem are
linked together through ___________ relationships.
Predator - prey relationship
depict the interactions between different species
within an ecosystem, showing who eats whom.
Food Web
Food webs show how different species in an ecosystem are
linked together through predator-prey relationships.
Food webs depict the interactions between different species
within an ecosystem, showing who eats whom.
Interconnectedness
It flows through the ecosystem, with each level
receiving energy from the level below.
Energy flows
Food webs illustrate the transfer of energy from one trophic
level to another as organisms are consumed.
Energy flow
energy is
______ as heat at each transfer.
lost
Food webs show the cycling of nutrients as they are
taken up by plants, passed through the food web, and
returned to the ecosystem through decomposition and
nutrient recycling.
Nutrient Cycling
Food webs can vary in __________, depending on the number
of species involved and the intricacy of their interactions
Complexity
The diversity of species in an ecosystem is reflected in
the complexity of its food web.
Biodiversity
At the apex of the food web, there are often ____________ that
have few or no natural predators themselves.
Top Predators
The structure of a food web can influence the _____________ of an ecosystem.
Stability and Resilience
A
food web that can often be more resilient to disturbances
because it has redundancy and alternative pathways for
energy and nutrient flow.
Diverse and well-connected
Food webs can depict various types of _____________
including mutualism, competition, and parasitism.
Species Relationships
