Results 1 to 10 of about 667,124 (235)

Of beta diversity, variance, evenness, and dissimilarity [PDF]

Ecology and Evolution, 2017
The amount of variation in species composition among sampling units or beta diversity has become a primary tool for connecting the spatial structure of species assemblages to ecological processes.
Ricotta, Carlo
core   +4 more sources

Seaweeds in two oceans: beta-diversity [PDF]

Frontiers in Marine Science, 2017
Several species assembly mechanisms have been proposed to structure ecological communities. We assess the biogeography of seaweeds along 2,900 km of South Africa’s coastline in relation to a thermal gradient produced by the Agulhas Current, and ...
Anderson, Barton, Baselga, Baselga, Baselga, Blanchet, Bolton, Bolton, Bolton, Bolton, Bolton, Bolton, Breeman, Broitman, Byrne, Chave, Couce, Davidar, De Clerck, De Wit, Dormann, Dray, Dray, Fitzpatrick, Graham, Griffiths, Hommersand, Hommersand, Hubbell, Issa, Largier, Lawton, Leaper, Lombard, Lüning, Marlow, McClain, Mead, Melo, Minchin, Nekola, Peres-Neto, Peres-Neto, Potts, Qian, Santelices, Schils, Schlegel, Sink, Smale, Smale, Smit, Soininen, Spalding, Spalding, Stegenga, Stephenson, Straub, Stuart-Smith, Thandar, Tittensor, Tonial, Turpie, Tuya, Tyberghein, van den Hoek, van den Hoek, Verbruggen, Waldron, Waters, Wernberg, Whittaker, Whittaker, Wieters, Zintzen   +74 more
core   +6 more sources

ANALYZING OR EXPLAINING BETA DIVERSITY? COMMENT [PDF]

Ecology, 2008
ion is alpha diversity, as in LBPa, rather than community composition, as in TR. In fact, alpha diversity is also level-1 data in the TR scheme. This is because alpha diversity can be presented in a sites 3 alpha diversity table, which is an observation units 3 descriptors table, which in turn is the basic format of level-1 data (Fig. 1).
/Pélissier, Raphaël, /Couteron, Pierre, Dray, S.   +2 more
  +8 more sources

Disentangling niche theory and beta diversity change [PDF]

The American Naturalist, 2021
AbstractBeta diversity describes the differences in species composition among communities. Changes in beta diversity over time are thought to be due to selection based on species’ niche characteristics. For example, theory predicts that selection that favours habitat specialists will increase beta diversity.
William Godsoe, Peter J. Bellingham, Elena Moltchanova   +2 more
openaire   +4 more sources

Rarefaction of beta diversity [PDF]

Ecological Indicators, 2019
Beta diversity has long been used to summarize the amount of variation in species composition among a set of N sampling units. However, while classical beta diversity provides an estimate of multiple-site dissimilarity among all sampling units, it is not informative on the changes of multiple-site dissimilarity as a function of sampling effort.
Ricotta, Carlo, Acosta, Alicia, Bacaro, Giovanni, Carboni, Marta, Chiarucci, Alessandro, Rocchini, Duccio, Pavoine, Sandrine   +6 more
openaire   +8 more sources

Gamma diversity and under-sampling together generate patterns in beta-diversity [PDF]

Scientific Reports, 2021
AbstractBeta diversity represents how species in the regional pool segregate among local communities and hence forms a link between local and regional species diversities. Therefore, the magnitude of beta diversity and its variation across geographic gradients can provide insights into mechanisms of community assembly.
Aniruddha Marathe, Dharma Rajan Priyadarsanan, Jagdish Krishnaswamy, Kartik Shanker   +3 more
openaire   +3 more sources

Beta-diversity of Central European forests decreases along an elevational gradient due to the variation in local community assembly processes [PDF]

, 2018
Beta-diversity has been repeatedly shown to decline with increasing elevation, but the causes of this pattern remain unclear, partly because they are confounded by coincident variation in alpha- and gamma-diversity.
Burrascano, Sabina, Chytrý, Milan, Jiménez-Alfaro, Borja, Lora, Andrea, Sabatini, Francesco Maria   +4 more
core   +2 more sources

Temporal dynamics of aquatic communities and implications for pond conservation [PDF]

, 2012
Conservation through the protection of particular habitats is predicated on the assumption that the conservation value of those habitats is stable. We test this assumption for ponds by investigating temporal variation in macroinvertebrate and macrophyte ...
Andrew Hull, B Davies, B Moss, B Oertli, C Hassall, Christopher Hassall, EM Raebel, GW Fairchild, J Biggs, J Boothby, J Boothby, J Hawkins, James Hollinshead, JM Chase, K Cottenie, LE Barnes, MA Fortuna, MD Eyre, MJ Jeffries, MJ Jeffries, MJ Jeffries, MJ Jeffries, MP Wanielista, N Indermuehle, N Indermuehle, N Menetrey, NW Moore, P Koleff, P Williams, P Williams, P Williams, PM Wade, R Chadd, R Céréghino, R Development Core Team, RA Briers, S Angélibert, S Angélibert, TN Sherratt, TT Macan   +39 more
core   +1 more source

A generalized framework for analyzing taxonomic, phylogenetic, and functional community structure based on presence-absence data [PDF]

, 2018
Community structure as summarized by presence–absence data is often evaluated via diversity measures by incorporating taxonomic, phylogenetic and functional information on the constituting species.
Pavoine, Sandrine, Podani, János, Ricotta, Carlo   +2 more
core   +3 more sources

Differential temporal beta‐diversity patterns of native and non‐native arthropod species in a fragmented native forest landscape [PDF]

, 2018
An important factor that hinders the management of non‐native species is a general lack of information regarding the biogeography of non‐natives, and, in particular, their rates of turnover.
Borges, Paulo A. V., Carvalho, Rui, Matthews, Thomas J., Nunes, Rui, Sadler, Jon   +4 more
core   +2 more sources