The rise and fall of species: implications for macroevolutionary and macroecological studies.
Knowing the geographic extents of species is crucial for understanding the causes of diversity distributions and modes of speciation and extinction. Species geographic ranges are often viewed as approximately constant in size in geological time, even though climate change studies have shown that historical and modern species geographic distributions are not static. Here, we use an extensive global microfossil database to explore the temporal trajectories of geographic extents over the entire lifespan of marine nannoplankton, diatom, planktic foraminifer and radiolarian species. We show that geographic extents are not static over geological time-scales. Temporal trajectories of species geographic ranges are asymmetric: the rise is quicker than the fall. We propose that once a species has overcome its initial difficulties in geographic establishment, it rises to its peak geographic extent. However, once this peak value is reached, it will also have a maximal number of species to interact with. The negative of these biotic interactions could then cause a gradual geographic decline. We discuss the multiple implications of our findings with reference to macroecological and macroevolutionary studies.
Liow
Lee Hsiang
LH
Centre for Ecological and Evolutionary Synthesis, Department of Biology, University of Oslo, PO Box 1066 Blindern, Oslo N-0316, Norway. l.h.liow@bio.uio.no
Stenseth
Nils Chr
NC
D005075:Biological Evolution; D017377:Diatoms / Q000502:physiology*; D017753:Ecosystem; D005580:Fossils; D010933:Plankton / Q000502:physiology*; D011157:Population Dynamics; D013997:Time Factors
Trends Ecol Evol. 2000 Feb;15(2):56-61
10652556
Proc Biol Sci. 2000 Sep 22;267(1455):1843-50
11052534
Science. 2001 Apr 27;292(5517):673-9
11326089
Paleobiology. 1997;23(4):410-9
11541189
Nature. 2003 Jan 2;421(6918):37-42
12511946
Philos Trans R Soc Lond B Biol Sci. 2004 Feb 29;359(1442):285-92; discussion 292-3
15101584
Am Nat. 2004 Nov;164(5):614-24
15540151
Proc Natl Acad Sci U S A. 2005 Jun 7;102(23):8245-50
15919825
Mol Biol Evol. 2006 Jan;23(1):212-26
16177230
Science. 2006 Sep 8;313(5792):1396-7
16959994
Trends Ecol Evol. 2007 Apr;22(4):180-4
17157408
Science. 2006 Dec 15;314(5806):1770-3
17170303
Philos Trans R Soc Lond B Biol Sci. 2007 Feb 28;362(1478):175-86
17255027
Science. 1987 Oct 16;238(4825):360-3
17837117
Oecologia. 1996 Jul;107(2):179-188
28307303