Faunal interchange and Miocene terrestrial vertebrates of Southern Asia

John C. Barry, Michele E. Morgan, Lawrence J. Flynn, David Pilbeam, Alisa J. Winkler, Louis L. Jacobs, Everett H. Lindsay

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Problems of stratigraphic completeness and poor temporal resolution make analysis of faunal change in terrestrial sequences difficult. The fluvial Neogene Siwalik formations of India and Pakistan are an exception. They contain a long vertebrate record and have good chronostrati-graphic control, making it possible to assess the influence of biotic interchange on Siwalik fossil communities. In Pakistan, the interval between 18 and 7 Ma has been most intensively studied and changes in diversity and relative abundance of ruminant artiodactyls and muroid rodents are documented with temporal resolution of 200,000 years. Within this interval, diversity varies considerably, including an abrupt rise in species number between 15 and 13 Ma, followed by a decline in ruminant diversity after 12 Ma and a decline in muroid diversity in two steps at 13 and 10 Ma. Significant changes in relative abundance of taxa include an increase in bovids between 16.5 and 15 Ma, a decrease in tragulids after 9 Ma, and a very abrupt increase in murids at 12 Ma. Megacri-cetodontine rodents also decrease significantly at 12 Ma, and smaller declines are recorded among myocricetodontine and copemyine rodents after 16 Ma. An increase of dendromurine rodents at 15.5 Ma is also observed. There is also a trend of progressive size increase among giraffoids and bovids throughout the sequence. We have also investigated relationships between biotic interchange and diversity, body size, and relative abundance, concluding that (1) the rapid increase in ruminant and muroid diversity was largely due to immigration, whereas in situ speciation had only a secondary role; (2) during intervals of increasing diversity, resident lineages did not have higher than average rates of in situ speciation; (3) during intervals with rising diversity, greater extinction did not accompany increased immigration; (4) during intervals with falling diversity, there may have been greater extinction in recently invading lineages; and (5) change in diversity was independent of changes in relative abundance and body size.

Original languageEnglish (US)
Pages (from-to)231-245
Number of pages15
JournalPaleobiology
Volume17
Issue number3
DOIs
StatePublished - 1991

Fingerprint

rodent
Vertebrates
ruminant
relative abundance
Rodentia
Ruminants
vertebrate
rodents
vertebrates
Miocene
ruminants
Pakistan
Emigration and Immigration
Body Size
immigration
body size
extinction
Muridae
Neogene
India

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Ecology
  • Ecology, Evolution, Behavior and Systematics
  • Palaeontology

Cite this

Barry, J. C., Morgan, M. E., Flynn, L. J., Pilbeam, D., Winkler, A. J., Jacobs, L. L., & Lindsay, E. H. (1991). Faunal interchange and Miocene terrestrial vertebrates of Southern Asia. Paleobiology, 17(3), 231-245. https://doi.org/10.1017/S0094837300010587

Faunal interchange and Miocene terrestrial vertebrates of Southern Asia. / Barry, John C.; Morgan, Michele E.; Flynn, Lawrence J.; Pilbeam, David; Winkler, Alisa J.; Jacobs, Louis L.; Lindsay, Everett H.

In: Paleobiology, Vol. 17, No. 3, 1991, p. 231-245.

Research output: Contribution to journalArticle

Barry, JC, Morgan, ME, Flynn, LJ, Pilbeam, D, Winkler, AJ, Jacobs, LL & Lindsay, EH 1991, 'Faunal interchange and Miocene terrestrial vertebrates of Southern Asia', Paleobiology, vol. 17, no. 3, pp. 231-245. https://doi.org/10.1017/S0094837300010587
Barry, John C. ; Morgan, Michele E. ; Flynn, Lawrence J. ; Pilbeam, David ; Winkler, Alisa J. ; Jacobs, Louis L. ; Lindsay, Everett H. / Faunal interchange and Miocene terrestrial vertebrates of Southern Asia. In: Paleobiology. 1991 ; Vol. 17, No. 3. pp. 231-245.
@article{bc693a936e344b21bb9792f78178812f,
title = "Faunal interchange and Miocene terrestrial vertebrates of Southern Asia",
abstract = "Problems of stratigraphic completeness and poor temporal resolution make analysis of faunal change in terrestrial sequences difficult. The fluvial Neogene Siwalik formations of India and Pakistan are an exception. They contain a long vertebrate record and have good chronostrati-graphic control, making it possible to assess the influence of biotic interchange on Siwalik fossil communities. In Pakistan, the interval between 18 and 7 Ma has been most intensively studied and changes in diversity and relative abundance of ruminant artiodactyls and muroid rodents are documented with temporal resolution of 200,000 years. Within this interval, diversity varies considerably, including an abrupt rise in species number between 15 and 13 Ma, followed by a decline in ruminant diversity after 12 Ma and a decline in muroid diversity in two steps at 13 and 10 Ma. Significant changes in relative abundance of taxa include an increase in bovids between 16.5 and 15 Ma, a decrease in tragulids after 9 Ma, and a very abrupt increase in murids at 12 Ma. Megacri-cetodontine rodents also decrease significantly at 12 Ma, and smaller declines are recorded among myocricetodontine and copemyine rodents after 16 Ma. An increase of dendromurine rodents at 15.5 Ma is also observed. There is also a trend of progressive size increase among giraffoids and bovids throughout the sequence. We have also investigated relationships between biotic interchange and diversity, body size, and relative abundance, concluding that (1) the rapid increase in ruminant and muroid diversity was largely due to immigration, whereas in situ speciation had only a secondary role; (2) during intervals of increasing diversity, resident lineages did not have higher than average rates of in situ speciation; (3) during intervals with rising diversity, greater extinction did not accompany increased immigration; (4) during intervals with falling diversity, there may have been greater extinction in recently invading lineages; and (5) change in diversity was independent of changes in relative abundance and body size.",
author = "Barry, {John C.} and Morgan, {Michele E.} and Flynn, {Lawrence J.} and David Pilbeam and Winkler, {Alisa J.} and Jacobs, {Louis L.} and Lindsay, {Everett H.}",
year = "1991",
doi = "10.1017/S0094837300010587",
language = "English (US)",
volume = "17",
pages = "231--245",
journal = "Paleobiology",
issn = "0094-8373",
publisher = "Paleontological Society",
number = "3",

}

TY - JOUR

T1 - Faunal interchange and Miocene terrestrial vertebrates of Southern Asia

AU - Barry, John C.

AU - Morgan, Michele E.

AU - Flynn, Lawrence J.

AU - Pilbeam, David

AU - Winkler, Alisa J.

AU - Jacobs, Louis L.

AU - Lindsay, Everett H.

PY - 1991

Y1 - 1991

N2 - Problems of stratigraphic completeness and poor temporal resolution make analysis of faunal change in terrestrial sequences difficult. The fluvial Neogene Siwalik formations of India and Pakistan are an exception. They contain a long vertebrate record and have good chronostrati-graphic control, making it possible to assess the influence of biotic interchange on Siwalik fossil communities. In Pakistan, the interval between 18 and 7 Ma has been most intensively studied and changes in diversity and relative abundance of ruminant artiodactyls and muroid rodents are documented with temporal resolution of 200,000 years. Within this interval, diversity varies considerably, including an abrupt rise in species number between 15 and 13 Ma, followed by a decline in ruminant diversity after 12 Ma and a decline in muroid diversity in two steps at 13 and 10 Ma. Significant changes in relative abundance of taxa include an increase in bovids between 16.5 and 15 Ma, a decrease in tragulids after 9 Ma, and a very abrupt increase in murids at 12 Ma. Megacri-cetodontine rodents also decrease significantly at 12 Ma, and smaller declines are recorded among myocricetodontine and copemyine rodents after 16 Ma. An increase of dendromurine rodents at 15.5 Ma is also observed. There is also a trend of progressive size increase among giraffoids and bovids throughout the sequence. We have also investigated relationships between biotic interchange and diversity, body size, and relative abundance, concluding that (1) the rapid increase in ruminant and muroid diversity was largely due to immigration, whereas in situ speciation had only a secondary role; (2) during intervals of increasing diversity, resident lineages did not have higher than average rates of in situ speciation; (3) during intervals with rising diversity, greater extinction did not accompany increased immigration; (4) during intervals with falling diversity, there may have been greater extinction in recently invading lineages; and (5) change in diversity was independent of changes in relative abundance and body size.

AB - Problems of stratigraphic completeness and poor temporal resolution make analysis of faunal change in terrestrial sequences difficult. The fluvial Neogene Siwalik formations of India and Pakistan are an exception. They contain a long vertebrate record and have good chronostrati-graphic control, making it possible to assess the influence of biotic interchange on Siwalik fossil communities. In Pakistan, the interval between 18 and 7 Ma has been most intensively studied and changes in diversity and relative abundance of ruminant artiodactyls and muroid rodents are documented with temporal resolution of 200,000 years. Within this interval, diversity varies considerably, including an abrupt rise in species number between 15 and 13 Ma, followed by a decline in ruminant diversity after 12 Ma and a decline in muroid diversity in two steps at 13 and 10 Ma. Significant changes in relative abundance of taxa include an increase in bovids between 16.5 and 15 Ma, a decrease in tragulids after 9 Ma, and a very abrupt increase in murids at 12 Ma. Megacri-cetodontine rodents also decrease significantly at 12 Ma, and smaller declines are recorded among myocricetodontine and copemyine rodents after 16 Ma. An increase of dendromurine rodents at 15.5 Ma is also observed. There is also a trend of progressive size increase among giraffoids and bovids throughout the sequence. We have also investigated relationships between biotic interchange and diversity, body size, and relative abundance, concluding that (1) the rapid increase in ruminant and muroid diversity was largely due to immigration, whereas in situ speciation had only a secondary role; (2) during intervals of increasing diversity, resident lineages did not have higher than average rates of in situ speciation; (3) during intervals with rising diversity, greater extinction did not accompany increased immigration; (4) during intervals with falling diversity, there may have been greater extinction in recently invading lineages; and (5) change in diversity was independent of changes in relative abundance and body size.

UR - http://www.scopus.com/inward/record.url?scp=0026291161&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026291161&partnerID=8YFLogxK

U2 - 10.1017/S0094837300010587

DO - 10.1017/S0094837300010587

M3 - Article

AN - SCOPUS:0026291161

VL - 17

SP - 231

EP - 245

JO - Paleobiology

JF - Paleobiology

SN - 0094-8373

IS - 3

ER -