Climate Change as Reflected in a Naturalist's Diary, Middleborough, Massachusetts

Леднева, А. В.; Miller‐Rushing, Abraham J.; Primack, Richard B.; Imbres, Carolyn

doi:10.1676/04-016

Cited by 47 publications

(43 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These findings contribute to a significant gap in phenological research and knowledge-that is, along elevation gradients. We are in strong agreement with authors of similar studies employing volunteer-collected data that such datasets are worth the effort to manipulate and analyze; these records can provide valuable long-term records for regions previously under-sampled by scientists (Ledneva et al 2004).…”

Section: Merits and Tradeoffs Of A Volunteer-collected Datasetsupporting

confidence: 87%

“…This would have been a nearly impossible task, however, not only because of the magnitude of this effort, but also because seedlings are extremely difficult to identify with certainty, many species require flowers and/or fruit for identification, and alive but dormant plants are often difficult to distinguish from those that are dead. Presence-only datasets are common to both formal scientific studies and to personal journals and volunteer datasets (Beaubien and Johnson 1994;Ledneva et al 2004) and offer meaningful information when interpreted appropriately.…”

Section: Merits and Tradeoffs Of A Volunteer-collected Datasetmentioning

confidence: 99%

See 1 more Smart Citation

Relationships between alpha diversity of plant species in bloom and climatic variables across an elevation gradient

Crimmins

Bertelsen

et al. 2007

Int J Biometeorol

View full text Add to dashboard Cite

This study analyzes a 20-year record of flowering observations collected near Tucson, Arizona, USA. In contrast to traditional phenological records, this dataset is a record of all species observed in bloom collected in five segments of approximately 1 mile (1.61 km) in length across a 4,158-ft (1,200-m) elevation gradient. The data showed differing seasonal and interannual patterns, demonstrating the influence of climatic factors and elevation on flowering. Miles at higher elevations showed bloom peaks in summer, consistent with temperate and montane communities. Conversely, lower miles demonstrated two distinct flowering seasons, typical of the surrounding Sonoran Desert. Interannual fluctuations in total species observed in bloom were not consistent across the 5 miles (c. 8 km), suggesting that these communities respond to different flowering cues. Consistent with documented flowering triggers in semi-arid systems, the alpha diversity of species in bloom at lower elevations in this study was strongly influenced by precipitation. Upper elevation bloom numbers were heavily influenced by temperature, correspondent with bloom triggers in temperate and montane systems. In general, different life forms exhibited similar bloom triggers within the study miles, believed to be a function of shallow soils. Multivariate community analyses showed that anomalous climate conditions yielded unique seasonal bloom compositions. Over the course of the study, average summer temperature showed an upward trend; the number of species in bloom in summer (July-October) in the highest mile (1,940-2,210 m) demonstrated a concurrent increasing trend. Community analysis suggested a gradual shift in the composition of species in bloom in this mile over the study period.

show abstract

Section: Merits and Tradeoffs Of A Volunteer-collected Datasetsupporting

confidence: 87%

Section: Merits and Tradeoffs Of A Volunteer-collected Datasetmentioning

confidence: 99%

Relationships between alpha diversity of plant species in bloom and climatic variables across an elevation gradient

Crimmins

Bertelsen

et al. 2007

Int J Biometeorol

View full text Add to dashboard Cite

show abstract

“…5e). Only a few studies have averaged monthly temperatures over several months to evaluate conditions during a longer temporal interval (2 mo: Loxton et al 1998, Loxton & Sparks 1999, Ptaszyk et al 2003, Ledneva et al 2004, Marra et al 2005, Gordo & Sanz 2006a3 mo: Sparks & Mason 2001, Dolenec 2003, Beaumont et al 2006; or 4 mo: Kaňuščák et al 2004). However, in the case of the NAO, there is an opposite trend (i.e.…”

Section: Quantitative Analysis According To Temporal Criteriamentioning

confidence: 99%

Why are bird migration dates shifting? A review of weather and climate effects on avian migratory phenology

Gordo¹

2007

Clim. Res.

351

409

View full text Add to dashboard Cite

“…Studies that have examined trends in arrival dates of Nearctic and Neotropical birds have found phenological shifts in the early season arrival of some species of North America migrants (e.g., Bradley et al 1999;Ledneva et al 2004), but fewer changes have been detected in the median of migration (Marra et al 2005;MacMynowski et al, two submitted papers). The temporal metrics used to quantify arrival in phenological analyses have received limited methodological or ecological scrutiny.…”

Section: Introductionmentioning

confidence: 99%

Climate and the complexity of migratory phenology: sexes, migratory distance, and arrival distributions

MacMynowski

Root

2007

Int J Biometeorol

View full text Add to dashboard Cite

The intra- and inter-season complexity of bird migration has received limited attention in climatic change research. Our phenological analysis of 22 species collected in Chicago, USA, (1979-2002) evaluates the relationship between multi-scalar climate variables and differences (1) in arrival timing between sexes, (2) in arrival distributions among species, and (3) between spring and fall migration. The early migratory period for earliest arriving species (i.e., short-distance migrants) and earliest arriving individuals of a species (i.e., males) most frequently correlate with climate variables. Compared to long-distance migrant species, four times as many short-distance migrants correlate with spring temperature, while 8 of 11 (73%) of long-distance migrant species' arrival is correlated with the North Atlantic Oscillation (NAO). While migratory phenology has been correlated with NAO in Europe, we believe that this is the first documentation of a significant association in North America. Geographically proximate conditions apparently influence migratory timing for short-distance migrants while continental-scale climate (e.g., NAO) seemingly influences the phenology of Neotropical migrants. The preponderance of climate correlations is with the early migratory period, not the median of arrival, suggesting that early spring conditions constrain the onset or rate of migration for some species. The seasonal arrival distribution provides considerable information about migratory passage beyond what is apparent from statistical analyses of phenology. A relationship between climate and fall phenology is not detected at this location. Analysis of the within-season complexity of migration, including multiple metrics of arrival, is essential to detect species' responses to changing climate as well as evaluate the underlying biological mechanisms.

show abstract

Climate Change as Reflected in a Naturalist's Diary, Middleborough, Massachusetts

Cited by 47 publications

References 21 publications

Relationships between alpha diversity of plant species in bloom and climatic variables across an elevation gradient

Relationships between alpha diversity of plant species in bloom and climatic variables across an elevation gradient

Why are bird migration dates shifting? A review of weather and climate effects on avian migratory phenology

Climate and the complexity of migratory phenology: sexes, migratory distance, and arrival distributions

Contact Info

Product

Resources

About