304 Answered Questions for the topic ecology

Ecology

07/15/19

Examples of prey predator interactions where density of predator is very low and prey form groups when the predator attacks the prey for food?
>**Examples of prey predator interactions where density of predator is very low (has a threat of extinction) and prey form groups when the predator attacks the prey for food.** I have searched... more
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Ecology

07/09/19

What fish (and/or shellfish) species with a multi-year life-cycle, besides salmon, die after spawning?
Most species of salmon die after spawning. Are there any other types of fish that spawn once and then die after a multi-year life-cylce? Is this a rare life history strategy among our human... more
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07/09/19

At higher elevations, where the climate is colder, and more severe, one might find a coniferous ____
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Ecology Science

07/09/19

Species can be listed as _______ or _______ under the Endangered Species Act?
Which two categories of the International Union for Conservation of Nature and Natural Resources (IUCN) Red List fill in the two blanks on the above question?
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07/09/19

What month, day and year was the book Silent Spring published?
Rachel Carson is the author of Silent Spring. She advocated for the environment and Silent Spring was a controversial book when it was published.
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Ecology

07/08/19

Nutrient limitation in terrestrial and freshwater ecosystems?
In terms of primary production, it is often described in textbooks that nitrogen is the most limiting nutrient in terrestrial ecosystems, while phosphorus is the most limiting nutrient in... more
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Ecology

07/08/19

How do communities relate to food webs?
I am a biology student who has just completed drawing a food web for class. As I was making it, I learned that a food web is the sum of all feeding interactions. My teacher associated food webs... more
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Ecology

07/07/19

What happens when you take a deciduous tree and place it in a climate controlled greenhouse?
The greenhouse would have stable level of light, (matched with day/night wavelength brightness changes like outside the greenhouse), humidity and temperature. Do certain processes in the tree not... more
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Ecology

07/05/19

How are epiphytes symbiotic?
I understand epiphytes are not parasitic. But how exactly are they helping the tree on which they grow?
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Ecology Biology

07/05/19

What is the most primitive animal?
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Ecology

07/04/19

Could we eradicate mosquitoes?
Researchers have proposed the application of CRISPR/Cas9 and [gene drive](https://en.wikipedia.org/wiki/Gene_drive) to genetically alter wild mosquito populations such that they don't transmit... more
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Ecology

06/30/19

Fauna in deep great lakes?
A significant amount of research has gone into the fauna of the deep oceans, but not so much that I can find on the deep great lakes (specifically the North American Great Lakes). I'm interested in... more
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Ecology

06/30/19

Will climate change affect flower population?
There is a flower population elevated 1000 meters above sea level. If climate change causes a 12⁰C increase in temperature over the next 10 years, what will happen to the flowers?
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Ecology

06/28/19

Evolution of parasite into ideal parasite?
An ideal parasite is a parasite which thrives within a host without harming it (according to my NCERT textbook). Then, quite obviously, why hasn't that happened yet? I mean, natural selection can... more
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Ecology

06/25/19

If crocodiles are k-selected, why do they supposedly "not age," as in avoid senescence?
I recently saw a few sources stating that Crocodiles do not biologically age, implying negligible senescence. Basically, a 70 year old crocodile is in the same physical/health condition as a 7 year... more
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Ecology

06/22/19

How do plastic containers and other thrash end up in the ocean?
There are many photos of the ocean, which in some parts is littered with all sorts of waste, often plastic bags, containers etc. But I just wonder - how do such large amounts land in the ocean/sea?... more
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Ecology

06/22/19

What does 'per capita births and deaths' mean?
My book says, > If in a pond there are 20 lotus plants last year and through reproduction 8 new plants are added, taking the current population to 28, we calculate the birth rate as 8/20 = 0.4... more
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Ecology

06/21/19

Are the words biology and Ecology ever interchangeable?
I often hear people use the word "Ecology" when i think they mean "biology." This got me wondering: are the words ever interchangeable, or are these people really just that frequently using the... more
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Ecology

06/21/19

Is there a biological term for an activity period that is determined by temparature?
In general we refer to the activity period of organisms in terms of the period of the day that they are active. Diurnal, crepuscular, nocturnal, matutinal, and vespertine, for example. There are... more
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Ecology

06/18/19

What is the name of classification of water, air and soil?
The definition of living organisms is all types of organisms are capable of some degree of response to stimuli, reproduction, growth, development and homeostasis. Non-living organisms are inanimate... more
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Ecology

06/15/19

When is Semelparous reproduction most likely to be favoured?
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Ecology

06/10/19

Change in conditions of an ecosystem lead to change in organisms?
Let's think about the slash and burn method and its effects on the ecosystem. Cutting down trees that rise all the way up to the canopy would expose the plants at ground level to more light, so... more
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Ecology

06/07/19

Is there a record of species kept in zoos worldwide and number of individuals? If yes, can one have access to it?
Looking for the number and species of wild cats kept in zoos to assess the potential pool of individuals available for reintroduction programmes.
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Ecology

06/05/19

How can a species switch from r to K - reproductive strategy in a single generation?
I ask because it seems as though humanity is in the midst of doing exactly this. Only a few decades ago, human population was growing exponentially, and it seemed destined to keep growing until... more
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Ecology

06/02/19

Why Can Varied Species Live Together in Particular Ecosystems?
Consider the following question: > The Piney Woods of Eastern Texas is home to a wide variety of organisms ranging from the grass Longleaf Oats to coyotes. Which of the following best explains... more
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