Microdistributional Variability of Larval Caddisflies in Mediterranean-Climate Streams in Northern California

Holomuzki, Joseph R.; Furey, Paula; Lowe, Rex L.; Power, Mary E.

doi:10.3398/064.073.0304

Cited by 6 publications

(3 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, ecological realism comes at the cost of control and standardization; and in our study, undetected differences in developmental stage, body condition, or sex may have influenced gene expression patterns. We collected individuals in the final larval instar, indicated by case-building materials in this species ( Hannaford, 1998 ; Holomuzki et al, 2013 ), but we do not know the individual’s age or proximity to pupation. Warming is known to increase developmental rate and has even been seen to drive pupation and emergence during thermal stress experiments in stoneflies ( Hannaford, 1998 ; Hotaling et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

“…Larvae in the fifth (terminal) instar stage were collected by hand in the morning on the day of each experiment from Angelo Coast Range Reserve (39.7186°, −123.6528°), Sagehen Creek Reserve (39.4333°, −120.2407°), and Landels-Hill Big Creek Reserve (36.071298°, −121.599153°) ( Figure 1A ). Larval stage was determined by case-building materials ( Resh et al, 2011 ; Holomuzki et al, 2013 ). Thermal stress experiments were performed streamside May-June of 2013 ( Table 2 ).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Mild temperatures differentiate while extreme temperatures unify gene expression profiles among populations of Dicosmoecus gilvipes in California

King

Stillman

2022

Front. Physiol.

View full text Add to dashboard Cite

Accurately predicting the effects of future warming on aquatic ectotherms requires an understanding how thermal history, including average temperature and variation, affects populations of the same species. However, many laboratory studies simplify the thermal environment to focus on specific organismal responses and sacrifice environmental realism. Here, we paired laboratory-based transcriptomic RNA-seq analysis to identify thermally responsive genes with NanoString analysis of a subset of those genes to characterize natural field-based variation in thermal physiology among populations. We tested gene expression responses of three populations of field-acclimatized larval caddisflies (Dicosmoecus gilvipes) from streams in different eco-regions (mountain, valley, and coast) following exposure to current and future summertime temperatures. We hypothesized that distinct thermal histories across eco-regions could differentiate populations at baseline “control” levels of gene expression, as well as gene expression changes in response to daily warming and heat shock. Population-specific patterns of gene expression were apparent under the control and daily warming conditions suggesting that local acclimatization or local adaptation may differentiate populations, while responses to extreme temperatures were similar across populations, indicating that response to thermal stress is canalized. Underlying gene co-expression patterns in the daily warming and heat shock treatments were different, demonstrating the distinct physiological mechanisms involved with thermal acclimatization and response to thermal stress. These results highlight the importance and limitations of studies of the thermal biology of wild-caught organisms in their natural environment, and provide an important resource for researchers of caddisflies and aquatic insects in general.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Mild temperatures differentiate while extreme temperatures unify gene expression profiles among populations of Dicosmoecus gilvipes in California

King

Stillman

2022

Front. Physiol.

View full text Add to dashboard Cite

show abstract

“…The patterns of macroinvertebrate spatial distribution are governed by multiple fluid flow, biologic, geomorphic, and chemical variables acting both independently and in combination [ Statzner et al ., ; Nikora , ; Holomuzki et al ., ; Katano and Doi , ]. Among these variables, open‐channel fluid flow conditions represent a major hydraulic gradient along which the benthic macroinvertebrate community is organized [ Rempel et al ., ].…”

Section: Introductionmentioning

confidence: 99%

Prediction of Glossosoma biomass spatial distribution in Valley Creek by field measurements and a three‐dimensional turbulent open‐channel flow model

Morris

Mohammadi

Day

et al. 2015

Water Resources Research

View full text Add to dashboard Cite

The fluid flow environment associated with high Glossosoma abundance is predicted by largeeddy simulation of a natural turbulent open-channel flow. The spatial distribution of Glossosoma was depicted by high resolution physical variables described by fluid flow and streambed topography. Variogram analysis of the streambed topography revealed a characteristic length scale of the streambed of the order 0.2 m over which bed roughness height was correlated. Flow simulation output was spatially and temporally averaged over the streambed characteristic length scale and linked to Glossosoma spatial density. A dimensionless scaling relationship between Glossosoma spatial distribution and streamwise velocity averaged in the longitudinal and transverse direction, spatial velocity fluctuation, and spanwise vorticity from the computational fluid dynamics simulation output explained 79% of the variation in observed dimensionless Glossosoma spatial density. The analysis demonstrated that computational fluid mechanics and high resolution bed topography could be instrumental in predicting benthic macroinvertebrate spatial distribution in streams and rivers.

show abstract

Do bio-physical attributes of steps and pools differ in high-gradient mountain streams?

O’Dowd

Chin

2016

Hydrobiologia

View full text Add to dashboard Cite

Microdistributional Variability of Larval Caddisflies in Mediterranean-Climate Streams in Northern California

Cited by 6 publications

References 35 publications

Mild temperatures differentiate while extreme temperatures unify gene expression profiles among populations of Dicosmoecus gilvipes in California

Mild temperatures differentiate while extreme temperatures unify gene expression profiles among populations of Dicosmoecus gilvipes in California

Prediction of Glossosoma biomass spatial distribution in Valley Creek by field measurements and a three‐dimensional turbulent open‐channel flow model

Do bio-physical attributes of steps and pools differ in high-gradient mountain streams?

Contact Info

Product

Resources

About