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Ian S. Pearse
Illinois Natural History Survey
EcologyAcornHerbivoreBotanyBiology
62Publications
20H-index
1,212Citations
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Publications 65
Newest
#1Ian S. PearseH-Index: 20
#2Jessica AguilarH-Index: 1
Last. Sharon Y. StraussH-Index: 37
view all 3 authors...
AbstractWater limitation is a primary driver of plant geographic distributions and individual plant fitness. Drought resistance is the ability to survive and reproduce despite limited water, and numerous studies have explored its physiological basis in plants. However, it is unclear how drought resistance and trade-offs associated with drought resistance evolve within plant clades. We quantified the relationship between water availability and fitness for 13 short-lived plant taxa in the Streptan...
2 CitationsSource
#1Chuliang SongH-Index: 4
#2Florian AltermattH-Index: 36
view all 4 authors...
#1Stephen J. MayorH-Index: 7
#2Robert P. Guralnick (Florida Museum of Natural History)H-Index: 36
Last. David C. Schneider (MUN: Memorial University of Newfoundland)H-Index: 33
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Consistent with a warming climate, birds are shifting the timing of their migrations, but it remains unclear to what extent these shifts have kept pace with the changing environment. Because bird migration is primarily cued by annually consistent physiological responses to photoperiod, but conditions at their breeding grounds depend on annually variable climate, bird arrival and climate-driven spring events would diverge. We combined satellite and citizen science data to estimate rates of change...
32 CitationsSource
#1Ian S. Pearse (UC Davis: University of California, Davis)H-Index: 20
#2Jessica Aguilar (UC Davis: University of California, Davis)H-Index: 1
Last. Sharon Y. Strauss (UC Davis: University of California, Davis)H-Index: 37
view all 4 authors...
Plant tolerance of herbivory, i.e., the ability to recover after damage, is an important component of how plants cope with herbivores. Tolerance has long been hypothesized to be constrained evolutionarily by plant resistance to herbivores, traits that allow plants to cope with stressful growing conditions, and traits that influence the timing of damage in relation to reproduction. Variation in tolerance and resistance can be caused by differences in the identity of the plant (e.g., genotype, spe...
3 CitationsSource
#1Xoaquín Moreira Tomé (CSIC: Spanish National Research Council)H-Index: 23
#2Ian S. Pearse (INHS: Illinois Natural History Survey)H-Index: 20
Plant life-history strategies associated with resource acquisition and economics (e.g., leaf habit) are thought to be fundamental determinants of the traits and mechanisms that drive herbivore pressure, resource allocation to plant defensive traits, and the simultaneous expression (positive correlations) or trade-offs (negative correlations) between these defensive traits. In particular, it is expected that evergreen species – which usually grow slower and support constant herbivore pressure in ...
1 CitationsSource
#1David Nouya Zaya (INHS: Illinois Natural History Survey)H-Index: 5
#2Ian S. Pearse (UIUC: University of Illinois at Urbana–Champaign)H-Index: 20
Last. Greg Richard Spyreas (INHS: Illinois Natural History Survey)H-Index: 16
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21 CitationsSource
#1Ian S. Pearse (INHS: Illinois Natural History Survey)H-Index: 20
#2Walter D. Koenig (Cornell University)H-Index: 51
Last. Dave Kelly (Cant.: University of Canterbury)H-Index: 40
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'Summary' 546 I. 'Introduction' 546 II. 'Ultimate and proximate hypotheses for masting behaviour' 547 III. 'The role of plant resources in masting' 548 IV. 'Which resources limit seed set?' 552 V. 'Pollination, fruit development, and masting' 554 VI. 'Hormonal control of seed set and masting' 556 VII. 'Evolutionary perspectives on masting behaviour' 558 VIII. 'Unifying resource budget and economy of scale models of masting' 558 IX. 'Conclusions' 559 'Acknowledgements' 559 References 559 Summary ...
65 CitationsSource
#1Benjamin YguelH-Index: 4
#2Hervé JactelH-Index: 39
Last. Andreas PrinzingH-Index: 23
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Theory suggests that the structure of evolutionary history represented in a species community may affect its functioning, but phylogenetic diversity metrics do not allow for the identification of major differences in this structure. Here we propose a new metric, ELDERness (for Evolutionary Legacy of DivERsity) to estimate evolutionary branching patterns within communities by fitting a polynomial function to lineage-through-time (LTT) plots. We illustrate how real and simulated community branchin...
4 CitationsSource
#1Walter D. Koenig (Cornell University)H-Index: 51
#2Reyes Alejano (University of Huelva)H-Index: 10
Last. Mario B. Pesendorfer (Cornell University)H-Index: 7
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Although the functional basis of variable and synchronous seed production (masting behavior) has been extensively investigated, only recently has attention been focused on the proximate mechanisms driving this phenomenon. We analyzed the relationship between weather and acorn production in 15 species of oaks (genus Quercus) from three geographic regions on two continents, with the goals of determining the extent to which similar sets of weather factors affect masting behavior across species and ...
17 CitationsSource
#1Mark C. Mescher (ETH Zurich)H-Index: 31
#2Ian S. Pearse (UC Davis: University of California, Davis)H-Index: 20
The role of information obtained via sensory cues and signals in mediating the interactions of organisms with their biotic and abiotic environments has been a major focus of work on sensory and behavioral ecology. Information-mediated interactions also have important implications for broader ecological patterns emerging at the community and ecosystem levels that are only now beginning to be explored. Given the extent to which plants dominate the sensory landscapes of terrestrial ecosystems, info...
12 CitationsSource
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