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Showing 1 to 12 of 39 entries
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Evolutionary diversification of continuous traits: phylogenetic tests and application to seed size in the California flora

STEM and diversification

Ackerly DD, Nyffeler R.
GSID: LiRmaTrtBM0J
DD Ackerly, R Nyffeler - Evolutionary Ecology, 2004 - Springer

… We consider groups of either equal stem group or crown group age, as the latter is more easily calibrated from fossil data (Magallon and Sanderson, 2001). The approach can also be …

Phylogenies and community ecology

diversity

Ackerly DD, Webb CO.
GSID: 8PpHY20mJ4AJ
CO Webb, DD Ackerly, MA McPeek… - Annual review of …, 2002 - annualreviews.org

▪ Abstract As better phylogenetic hypotheses become available for many groups of organisms, studies in community ecology can be informed by knowledge of the evolutionary …

Self-shading, carbon gain and leaf dynamics: a test of alternative optimality models.

Oecologia

Ackerly D.
PMID: 28307752
Oecologia. 1999 May;119(3):300-310. doi: 10.1007/s004420050790.

A simple model of shoot-level carbon gain is presented addressing the optimal number and life span of leaves in relation to alternative optimality criteria: (1) maximizing carbon export from the shoot, or (2) maximizing the rate of leaf production...

Effects of CO.

Oecologia

Hirose T, Ackerly DD, Traw MB, Bazzaz FA.
PMID: 28307832
Oecologia. 1996 Oct;108(2):215-223. doi: 10.1007/BF00334644.

Elevated CO

Correlated evolution of chloroplast heat shock protein expression in closely related plant species.

American journal of botany

Knight CA, Ackerly DD.
PMID: 11250818
Am J Bot. 2001 Mar;88(3):411-8.

Interspecific variation in chloroplast low molecular weight (cLMW) HSP (heat shock protein) expression was examined with respect to phylogeny, species specific leaf area, chlorophyll fluorescence, and mean environmental conditions within species ranges. Eight species of Ceanothus (Rhamnaceae) were heat...

Convergence and correlations among leaf size and function in seed plants: a comparative test using independent contrasts.

American journal of botany

Ackerly DD, Reich PB.
PMID: 10487815
Am J Bot. 1999 Sep;86(9):1272-81.

Prior studies of a broad array of seed plants have reported strong correlations among leaf life span, specific leaf area, nitrogen concentration, and carbon assimilation rates, which have been interpreted as evidence of coordinated leaf physiological strategies. However, it...

Plant life histories: a meeting of phylogeny and ecology.

Trends in ecology & evolution

Ackerly D.
PMID: 21237953
Trends Ecol Evol. 1997 Jan;12(1):7-9. doi: 10.1016/s0169-5347(96)30057-8.

No abstract available.

Size-dependent variation of gender in high density stands of the monoecious annual, Ambrosia artemisiifolia (Asteraceae).

Oecologia

Ackerly DD, Jasieński M.
PMID: 28311470
Oecologia. 1990 Apr;82(4):474-477. doi: 10.1007/BF00319788.

We examined the relationship between size variability and the distribution of functional gender in stands of the monoecious, wind-pollinated annual Ambrosia artemisiifolia. Populations of 60 individuals were grown in the greenhouse at a density of 372 m

Light, leaf age, and leaf nitrogen concentration in a tropical vine.

Oecologia

Ackerly DD.
PMID: 28311893
Oecologia. 1992 Apr;89(4):596-600. doi: 10.1007/BF00317169.

Tropical vines in the Araceae family commonly exhibit alternating periods of upward and downward growth, decoupling the usual relationship between decreasing light environment with increasing age among the leaves on a shoot. In this study I examined patterns of...

Populism, "Anti" Ideologies, and Feminist Coalitions.

Frontiers in sociology

Ackerly BA.
PMID: 33869538
Front Sociol. 2021 Feb 17;5:620065. doi: 10.3389/fsoc.2020.620065. eCollection 2020.

By understanding populism as an "anti-" politics we can see two strands of populism: the

Application of the 'Spiking' method to the measurement of low dose radiation (≤ 1Gy) using alanine dosimeters.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

Geso M, Ackerly T, Lim SA, Best SP, Gagliardi F, Smith CL.
PMID: 29367124
Appl Radiat Isot. 2018 Mar;133:111-116. doi: 10.1016/j.apradiso.2018.01.003. Epub 2018 Jan 10.

Alanine dosimeters are limited in radiotherapy by poor sensitivity at low doses (< 5Gy). A set of alanine dosimeters were 'spiked' with a large dose of radiation, (~30Gy, 6MV X-rays) and additional doses ranging between 0.5 and 10Gy. The...

An ecological and evolutionary analysis of photosynthetic thermotolerance using the temperature-dependent increase in fluorescence.

Oecologia

Knight CA, Ackerly DD.
PMID: 28547251
Oecologia. 2002 Feb;130(4):505-514. doi: 10.1007/s00442-001-0841-0. Epub 2002 Feb 01.

The hypothesis that species inhabiting warmer regions have greater photosynthetic tolerance of high temperatures was tested using the temperature-dependent increase in fluorescence (T-F

Showing 1 to 12 of 39 entries