What is the refugia hypothesis?
The refugia hypothesis offered historical explanation to both the geographic distribution of closely related taxa and to the high species diversity pattern over large geographic scale within Amazonia.
What does the term refugia refer to?
In biology, a refugium (plural: refugia) is a location which supports an isolated or relict population of a once more widespread species. This isolation (allopatry) can be due to climatic changes, geography, or human activities such as deforestation and overhunting.
What is a glacial period in science?
There are periods within ice ages that scientists define as glacial and interglacial. Glacial – A glacial period is a cold period when the glaciers are expanding. Interglacial – An interglacial period is a warm period where the glaciers may be receding.
What it means for organisms to be in a state of refugia?
In the ecological literature, ‘refugia’ have been defined as habitats that convey spatial and temporal resistance and/or resilience to biotic communities affected by disturbances (Sedell et al., 1990) or as places or times where the negative effects of disturbance are lower than those in the surrounding area (or time).
What is climate change refugia?
Climate change refugia are “areas that remain relatively buffered from contemporary climate change over time and enable persistence of valued physical, ecological, and socio-cultural resources” [4].
What are species called that are found in only one geographic location?
Endemic species
Endemic species—species that are only found in one particular location—are also found in hotspots. All of the Earth’s species work together to survive and maintain their ecosystems.
Where does the word refugia come from?
[Latin, refuge; see refuge.]
What are glacial episodes?
glacial stage, in geology, a cold episode during an ice age, or glacial period. An ice age is a portion of geologic time during which a much larger part of Earth’s surface was covered by glaciers than at present.
What happens during glacial periods?
Glacial periods are colder, dustier, and generally drier than interglacial periods. These glacial–interglacial cycles are apparent in many marine and terrestrial paleoclimate records from around the world.
What is microclimate management?
Skin IQTM Microclimate Management is a solution for managing skin temperature and control excessive moisture. NAT helps to reduce or maintain skin temperature while preventing excess moisture or humidity build up on the skin’s surface.
What is climate velocity?
Climate velocity is a simple metric that describes the speed and direction of climate movement at any point in space. Simple predictive metrics of range shifts such as climate velocity, that do not require extensive knowledge or data on individual species, could help to guide conservation.
What are the different types of glacial refugia?
A glacial refugium (plural refugia) is a geographic region which made possible the survival of flora and fauna in times of ice ages and allowed a post-glacial re-colonization. Different types of glacial refugia can be distinguished namely nunatak-, peripheral and lowland refugia.
What was the purpose of the glacial refugium?
A glacial refugium (plural refugia) is a geographic region which made possible the survival of flora and fauna in times of ice ages and allowed a post-glacial re-colonization.
Where does the Lowland glacial refugia take place?
Lowland glacial refugia, unlike nunatak and peripheral glacial refugia, is a type of refugia that exists outside of the mountain system in the lowlands. Situated beyond the limits of ice shields, lowland refugia has been identified for a number of plant and animal species.
Which is the best definition of a refugium?
Refugia can be defined as habitats or environmental factors that coupled with morphological, life history, and behavioral attributes of animals reduce the impacts of disturbance (Sedell et al., 1990; Lancaster and Belyea, 1997).