scholarly journals High Preservation Potential of Paleogeographic Range Size Distributions in Deep Time

2020 ◽  
Vol 196 (4) ◽  
pp. 454-471 ◽  
Author(s):  
Simon A. F. Darroch ◽  
Michelle M. Casey ◽  
Gwen S. Antell ◽  
Amy Sweeney ◽  
Erin E. Saupe
Keyword(s):  
Range Size ◽  
Size Distributions ◽  
Deep Time ◽  
Preservation Potential

PRESERVATION POTENTIAL OF GEOGRAPHIC RANGE SIZE IN DEEP TIME

2018 ◽  
Author(s):  
Simon A.F. Darroch ◽  
◽  
Erin E. Saupe ◽  
Michelle M. Casey
Keyword(s):  
Geographic Range ◽  
Range Size ◽  
Deep Time ◽  
Geographic Range Size ◽  
Preservation Potential

scholarly journals Preservation potential of keratin in deep time

PLoS ONE ◽  
2018 ◽  
Vol 13 (11) ◽  
pp. e0206569 ◽  
Author(s):  
Mary Higby Schweitzer ◽  
Wenxia Zheng ◽  
Alison E. Moyer ◽  
Peter Sjövall ◽  
Johan Lindgren
Keyword(s):  
Deep Time ◽  
Preservation Potential

Species-range size distributions in Britain

Ecography ◽  
1998 ◽  
Vol 21 (4) ◽  
pp. 361-370 ◽  
Author(s):  
Kevin J. Gaston ◽  
Rachel M. Quinn ◽  
Tim M. Blackburn ◽  
Brian C. Eversham
Keyword(s):  
Range Size ◽  
Species Range ◽  
Size Distributions

scholarly journals ARE RANGE-SIZE DISTRIBUTIONS CONSISTENT WITH SPECIES-LEVEL HERITABILITY?

Evolution ◽  
2012 ◽  
Vol 66 (7) ◽  
pp. 2216-2226 ◽  
Author(s):  
Michael K. Borregaard ◽  
Nicholas J. Gotelli ◽  
Carsten Rahbek
Keyword(s):  
Species Level ◽  
Range Size ◽  
Size Distributions

scholarly journals Comparing amber fossil assemblages across the Cenozoic

2006 ◽  
Vol 2 (2) ◽  
pp. 266-270 ◽  
Author(s):  
David Penney ◽  
A. Mark Langan
Keyword(s):  
Structural Complexity ◽  
Size Distributions ◽  
Deep Time ◽  
Spider Species ◽  
Dominican Amber ◽  
Ecological Information ◽  
Pluralistic Approach ◽  
Fossil Assemblages ◽  
First Time ◽  
Lines Of Evidence

To justify faunistic comparisons of ambers that differ botanically, geographically and by age, we need to determine that resins sampled uniformly. Our pluralistic approach, analysing size distributions of 671 fossilized spider species from different behavioural guilds, demonstrates that ecological information about the communities of two well-studied ambers is retained. Several lines of evidence show that greater structural complexity of Baltic compared to Dominican amber trees explains the presence of larger web-spinners. No size differences occur in active hunters. Consequently, we demonstrate for the first time that resins were trapping organisms uniformly and that comparisons of amber palaeoecosystem structure across deep time are possible.

scholarly journals A simple spatially explicit neutral model explains range size distribution of reef fishes

2017 ◽  
Author(s):  
Adriana Alzate ◽  
Thijs Janzen ◽  
Dries Bonte ◽  
James Rosindell ◽  
Rampal S. Etienne
Keyword(s):  
Size Distribution ◽  
Empirical Data ◽  
Reef Fishes ◽  
Range Size ◽  
Monte Carlo Algorithm ◽  
Dispersal Ability ◽  
Spatially Explicit ◽  
Size Distributions ◽  
Neutral Model ◽  
Dispersal Events

AbstractAimThe great variation in range sizes among species has fascinated ecologists for decades. In reef-associated fish species, which live in fragmented habitats and adopt a wide range of dispersal strategies, we may expect species with greater dispersal ability to spread over larger ranges. However, empirical evidence for such a positive relationship between dispersal and range size in reef fishes remains scarce. Here, we unveil the more nuanced role of dispersal on the range size distribution of reef associated fishes using empirical data and a novel spatially explicit model.LocationTropical Eastern PacificMajor taxa studiedReef-associated fishesMethodsWe estimated range size distributions for six different guilds of all reef-associated fishes with different dispersal abilities. We used a one-dimensional spatially explicit neutral model, which simulates the distribution of species along a linear coastline to explored the effect of dispersal, speciation and sampling on the distribution of range sizes. Our model adopts a more realistic gradual speciation process (protracted speciation) and incorporates important long distance dispersal events with a fat-tail dispersal kernel. We simulated our model using a highly efficient coalescence approach, which guarantees the metacommunity, is sampled at dynamic equilibrium. We fitted the model to the empirical data using an approximate Bayesian computation approach, with a sequential Monte Carlo algorithm.ResultsStochastic birth, death, speciation and dispersal events alone can accurately explain empirical range size distributions for six different guilds of tropical, reef-associated fishes. Variation in range size distributions among guilds are explained purely by differences in dispersal ability with the best dispersers covering larger ranges.Main conclusionsA simple combination of neutral processes with guild-specific dispersal ability provides a general explanation for both within- and across-guild range size variation. Our results support the theoretically expected, but empirically much debated, hypothesis that dispersal promotes range size.

scholarly journals Species-range size distributions: products of speciation, extinction and transformation

1998 ◽  
Vol 353 (1366) ◽  
pp. 219-230 ◽  
Author(s):  
Kevin J. Gaston
Keyword(s):  
Temporal Dynamics ◽  
Range Size ◽  
Species Range ◽  
Size Distributions ◽  
Common Currency ◽  
Geographic Ranges ◽  
Research Fields ◽  
The Earth ◽  
Geographic Range Size

One basic summary of the spatial pattern of biodiversity across the surface of the Earth is provided by a species–range size distribution, the frequency distribution of the numbers of species exhibiting geographic ranges of different sizes. Although widely considered to be approximately lognormal, increasingly it appears that across a variety of groups of organisms this distribution systematically departs from such a form. Whatever its detailed shape, however, the distribution must arise as a product of three processes, speciation, extinction and transformation (the temporal dynamics of the range sizes of species during their life times). Considering the role potentially played by each of these processes necessitates drawing on information from a diverse array of research fields, and highlights the possible role of geographic range size as a common currency uniting them.

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