Are r-selected species humans?

Are r-selected species humans?

r-selection: On one extreme are the species that are highly r-selected. r is for reproduction. Such a species puts only a small investment of resources into each offspring, but produces many such low effort babies….r- and K-selection.

Characteristic r K
Early mortality high low

Are humans R strategists or K strategists?

Bacteria, insects and corals are few examples of r strategists while human, primates, and elephants are few examples of K strategists. One other notable difference between r strategist and K strategist is their sizes. The r strategist is smaller in size while the K strategist is larger.

What reproductive strategy do humans have?

While males generally pursue a short-term mating strategy when possible, females typically pursue a long-term mating strategy. Long-term strategies are characterized by extended courtships, high investment, and few sexual partners.

Are humans generalists or specialists?

sapiens are often highlighted as a classic example of a generalist species in this regard, local populations of our species are also able to specialize in the use of different food webs through time; hence, the generalist specialist.

What characteristics do humans share with R-selected species?

K and r Reproductive Strategies

Characteristics of r- and K-selected organisms
r-organisms K-organisms
have large litters have small litters
reproduce at an early age reproduce at a late age
fast maturation slow maturation

How do humans breed?

Humans mate through a process called sexual intercourse. Human reproduction depends on the fertilization of a woman’s ova (egg) by a man’s sperm.

What is R and K reproductive strategy?

The symbols r and K originate in the mathematics of population biology and refer to 2 ends of a continuum in which a compensatory exchange occurs between gamete production (the r-strategy) and longevity (the K-strategy).

Are humans invasive species?

1) An invasive species is widespread: Humans, which can be found on every continent, floating on every ocean and even circling the skies above certainly meet this aspect of invasiveness.

What is an example of a generalist species?

Raccoons (Procyon lotor) are an example of a generalist species. They can live in a wide variety of environments, including forests, mountains, and large cities, which they do throughout North America.

Are humans semelparous?

An example of an iteroparous organism is a human—humans are biologically capable of having offspring many times over the course of their lives. Iteroparous vertebrates include all birds, most reptiles, virtually all mammals, and most fish.

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