Phylogeny and biodiversity: Conserving our evolutionary legacy

Brooks, Daniel R.; Mayden, Richard L.; McLennan, Deborah A.

doi:10.1016/0169-5347(92)90107-m

Cited by 114 publications

(77 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

Section: Life History and Gene Flowmentioning

confidence: 89%

“…Obviously, each of these new species occurs in smaller geographic ranges than the former range of spectabile. This underscores the importance of explicit knowledge of systematics when studying the biological correlates of geographic distribution (Brooks et al 1992).Assuming that reduced gene flow is associated with increased rates of speciation, it seems logical to ask whether the demonstrated association of life history and gene flow allows prediction of patterns of lineage diversity in darters. Analyses of independent contrasts suggested that some of the variance in gene flow predicted by life history is attributable to phylogeny.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Ecological and Historical Associations of Gene Flow in Darters (Teleostei: Percidae)

Turner

Trexler

1998

Evolution

View full text Add to dashboard Cite

Abstract.-Life history should relate to gene flow (Nm) through its influence on dispersal and effective population size. Comparative studies designed to elucidate this relationship must contend with historical events that can yield misleading estimates of gene flow and statistical problems associated with inclusion of life-history traits correlated with phylogeny. We studied the relationships of life-history characters and gene flow in 15 species of darters, a monophyletic group of stream fishes. Populations of coexisting species were sampled in three geographic regions with different Pleistocene glaciation histories. Gene flow was estimated indirectly from allozymes using two methods, 6 and private alleles. Isolation-by-distance was also tested using regression of pairwise estimates of gene flow (M) on distance. Theta and private-alleles methods produced congruent estimates of Nm, except in a study region hypothesized to have been historically fragmented and then united following Pleistocene glaciation. A relatively weak association between life-history traits and Nm (based on 6) was observed when species from the historically fragmented region were included in stepwise regression analysis, because Nm was low despite life-history differences among taxa in this region. Excluding observations from this region produced stronger associations between clutch size and Nm (r 2 = 0.57), and between female size, egg size, and Nm (r 2 = 0.95). Additional analyses that corrected for female body size and phylogenetic nonindependence agreed that darters with high fecundity and small eggs exhibited high gene flow, whereas darters with small clutches and large eggs had low gene flow. The latter combination of life-history traits primarily is exhibited in species from headwater habitats where parental investment presumably confers survivorship on offspring. Reduced gene flow and genetic divergence among demes appear to be evolutionary consequences of this strategy.Key words.-Allozymes, comparative approach, Etheostoma, life history, mitochondrial DNA, Percina, population history.Received July 7, 1998. Accepted August 18, 1998 Life history should relate to gene flow (Nm) through its influence on dispersal and effective population size. A number of comparative studies have shown that interspecific lifehistory variation and gene flow are only weakly related (reviewed in Avise 1994). This probably results from the effects of historical events on genetic structure, for example, vicariant fragmentation, range expansion, and extinction and recolonization. Such events can produce patterns of genetic divergence that are similar to patterns resulting from ongoing migration (Felsenstein 1982;Templeton et al. 1995). Thus, comparing taxa with different population histories can diminish the explanatory power of life-history traits as predictors of gene flow (Loveless and Hamrick 1984;Boileau et al. 1992; Schulman and Bermingham 1995).Comparisons of unrelated and ecologically dissimilar taxa can obscure the relationship between life-history ...

show abstract

Section: Life History and Gene Flowmentioning

confidence: 89%

mentioning

confidence: 99%

Ecological and Historical Associations of Gene Flow in Darters (Teleostei: Percidae)

Turner

Trexler

1998

Evolution

View full text Add to dashboard Cite

show abstract

“…Based on current information, E. bellator appears to be the ideal surrogate for E. chermocki because both species share similarities of life history characteristics. When necessary characteristics of an endangered species are lacking and obtaining additional information may h a m the imperiled species, a surrogate species can be studied and this information can then be directly applied back to the endangered species (Brooks et al 1992a and1992b). For instance, the length of the spawning season of E. chermocki is not known for certainty due to the lack of specimens for the entire year.…”

Section: Discussionmentioning

confidence: 99%

Life History of the Warrior Darter (Etheostoma bellator) and Comparison with the Endangered Vermilion Darter (Etheostoma chermocki)

Khudamrongsawat¹,

Kuhajda²

2007

Journal of Freshwater Ecology

View full text Add to dashboard Cite

“…Remanescentes onde encontram-se espécies endêmicas são importantes na biogeografia e devem ser priorizadas na seleção de áreas para conservação (Brooks et al 1992).…”

Section: Resultados E Discussõesunclassified

Inventário florístico de um remanescente de Floresta Estacional Semidecidual no Sul do Espírito Santo, Brasil: Parque Estadual Cachoeira da Fumaça

Borges

Milward‐de-Azevedo

2017

Rodriguésia

View full text Add to dashboard Cite

Resumo Um inventário florístico de espécies de angiospermas provenientes do Parque Estadual Cachoeira da Fumaça (PECF), Espírito Santo, Brasil é apresentado. O PECF está localizado na divisa dos municípios de Alegre e Ibitirama, situado na região do Caparaó, sul do Espírito Santo, protegendo nascentes e remanescentes de um trecho conservado do rio Braço Norte Direito. Objetivou-se com este trabalho ampliar o conhecimento da diversidade de angiospermas de um remanescente de Floresta Atlântica localizado no Sul do Espírito Santo, por meio do levantamento em campo das espécies herbáceas, trepadeiras, arbustivas e arbóreas ocorrentes no PECF. As coletas foram realizadas mensalmente durante janeiro de 2010 a janeiro de 2011 e as amostras botânicas foram depositadas no herbário VIES (subcuradoria Alegre). Os resultados estão apresentados em forma de lista com um total de 222 espécies distribuídas em 171 gêneros e 60 famílias, deste total, 30 espécies são endêmicas do Brasil, quatro estão na lista vermelha de espécies ameaçadas, e 13 são citadas como novas ocorrências para o Espírito Santo. Fabaceae, Asteraceae, Piperaceae, Rubiaceae, Euphorbiaceae, Poaceae, Melastomataceae e Myrtaceae são as famílias mais ricas em número de espécies. O número de táxons encontrados no PECF reafirma que pequenos remanescentes florestais apresentam elevada diversidade de espécies.

show abstract

Phylogeny and biodiversity: Conserving our evolutionary legacy

Cited by 114 publications

References 18 publications

Ecological and Historical Associations of Gene Flow in Darters (Teleostei: Percidae)

Ecological and Historical Associations of Gene Flow in Darters (Teleostei: Percidae)

Life History of the Warrior Darter (Etheostoma bellator) and Comparison with the Endangered Vermilion Darter (Etheostoma chermocki)

Inventário florístico de um remanescente de Floresta Estacional Semidecidual no Sul do Espírito Santo, Brasil: Parque Estadual Cachoeira da Fumaça

Contact Info

Product

Resources

About