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17 results for “ME Acadia National Park”
Data from: Local environment, not local adaptation, drives leaf-out phenology in common gardens along an elevational gradient in Acadia National Park, Maine
PREMISE OF THE STUDY: Climate-driven changes in phenology are substantially affecting ecological relationships and ecosystem processes. The role of variation among species has received particular attention; for example, variation among species' phenological responses to climate can disrupt trophic interactions and can influence plant performance. Variation within species in phenological responses to climate, however, has received much less attention, despite its potential role in ecological interactions and local adaptation to climate change. METHODS: We constructed three common gardens across an elevation gradient on Cadillac Mountain in Acadia National Park, Maine to test population-level responses in leaf-out phenology in a reciprocal transplant experiment. The experiment included three native species: low bush blueberry (Vaccinium angustifolium), sheep's laurel (Kalmia angustifolia), and three-toothed cinquefoil (Sibbaldiopsis tridentata). KEY RESULTS: Evidence for local adaptation of phenological response to temperature varied among the species, but was weak for all three. Rather, variation in phenological response to temperature appeared to be driven by local microclimate at each garden site and year-to-year variation in temperature. CONCLUSIONS: Population-level adaptations in leaf-out phenology appear to be relatively unimportant for these species in Acadia National Park, perhaps a reflection of strong genetic mixing across elevations, or weak differences in selection on phenological response to spring temperatures at different elevations. These results concur with other observational data in Acadia and highlight the utility of experimental approaches to understand the importance of annual and local site variation in affecting phenology both among and within plant species.
Data from: Trails-as-transects: phenology monitoring across heterogeneous microclimates in Acadia National Park, Maine
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Soil as a critical component of vegetation restoration on a sub-alpine mountain summit in Acadia National Park
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Data from: Local environment, not local adaptation, drives leaf-out phenology in common gardens along an elevational gradient in Acadia National Park, Maine
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FIGURES 125–133 in Three new Eunotia (Bacillariophyta) species from Acadia National Park, Maine, USA
FIGURES 125–133. Eunotia spatulata sp. nov., internal views, SEM. Figs 125–128, 130 and 132, 131 and 133 each represent parts of the same specimen. Figs. 125 Complete valve. Figs 126, 130, 131 Details of apices without rimoportulae, showing more densely spaced striae and the internally occluded raphe extending past the helictoglossa. Figs 127, 129 Apices with prominent rimoportulae adjacent to helictoglossae. Fig. 128 Detail of the central part of the valve, with internally unoccluded round areolae and parallel striae. Figs 132, 133 Partial valves including the widened central portion of the valve and subapical attenuation. Scale bars = 10 µm (in Figs 125, 132, 133) or 1 µm (in Figs 126–131).
FIGURES 104–117 in Three new Eunotia (Bacillariophyta) species from Acadia National Park, Maine, USA
FIGURES 104–117. Eunotia spatulata sp. nov., LM. Figs 104b, 105b, 107b Details of apices with rimoportulae and helictoglossae in focus. Fig. 112 Together with Eunotia novaeangliae. Fig. 114 Photograph of the holotype specimen (H). Fig. 116 Micrograph of the isotype specimen (Is). Pairs of photographs representing the same specimen in different focal planes or two various parts of the same valve are marked with "=". Scale bar = 10 µm.
FIGURES 118–124 in Three new Eunotia (Bacillariophyta) species from Acadia National Park, Maine, USA
FIGURES 118–124. Eunotia spatulata sp. nov., external views, SEM. Figs 118–120, 121–122, 123–124 each represent parts of the same specimen. Fig. 118 Incomplete valve, although still showing the straight long valve, narrowing very gradually and slightly from the center to the subapical portion, with a widely spatulate apex. Fig. 119 Apex without rimoportula. Figs 120, 124 Details of middle parts of the valves with sharply beveled edges. Figs 121–123 Apices with rimoportula apertures and well-developed siliceous ridges at the apical valve margins. Fig. 122 Detail of externally occluded rounded areolae. Scale bars = 10 µm (in Fig. 118) or 1 µm (in Figs 119–124).
FIGURES 56–66 in Three new Eunotia (Bacillariophyta) species from Acadia National Park, Maine, USA
FIGURES 56–66. Size reduction series of Eunotia panda sp. nov., LM (part 1 – upper size range). Scale bar = 10 µm.
FIGURES 96–103 in Three new Eunotia (Bacillariophyta) species from Acadia National Park, Maine, USA
FIGURES 96–103. Eunotia panda sp. nov., internal views, SEM. Figs 97–99 and 100–102 each represent the same specimen. Figs 96, 97, 100 Valve views. Figs 98, 102 Apices without rimoportulae. Figs 99, 101, 103 Apices with large rimoportulae. Scale bars = 10 µm (in Figs 96–97) or 1 µm (in Figs 98–103).
FIGURES 87–95 in Three new Eunotia (Bacillariophyta) species from Acadia National Park, Maine, USA
FIGURES 87–95. Eunotia panda sp. nov., external views, SEM. Figs 87–90 and 91–92 each represent parts of the same specimen. Figs 87, 91 Whole valves. Figs 88, 90, 92, 93, 95 Apices with raphe fissures reflexed proximally and terminating ca. in the center of the valve face. Irregular small protrusions are evident between the striae at the tip of each apex, and the beveled, rather sharp edges of the valve face. Fig. 89 Detail of striae lowered in between hyaline ridges in the central part of the valve with the sharply beveled valve edges. Fig. 94 Detail of unoccluded rounded to irregularly shaped areolae. Scale bars = 10 µm (in Figs 87, 91), 1 µm (in Figs 88–90, 92–93, 95) or 100 nm (in Fig. 94).
FIGURES 67–86 in Three new Eunotia (Bacillariophyta) species from Acadia National Park, Maine, USA
FIGURES 67–86. Size reduction series of Eunotia panda sp. nov., LM (part 2 – lower size range). Fig. 71 Photograph of the holotype specimen (H). Fig. 74 Photograph of the isotype specimen (Is). Scale bar = 10 µm.
FIGURES 40–48 in Three new Eunotia (Bacillariophyta) species from Acadia National Park, Maine, USA
FIGURES 40–48. Eunotia novaeangliae sp. nov., external views, SEM. Figs 40–42, 43–46 and 47–48 each represent the same specimen. Figs 40, 43, 47 Whole valves in valve or oblique views. Figs 40–44, 46–48 Distinctive character of the raphe, which is situated mostly on the valve mantle and terminates on the valve face only with a very short slit (expanding to less than 1/5 of the valve width). Figs 41, 46 Details of the apices with openings to rimoportulae. Figs 42, 44, 48 Apices without rimoportula apertures. Fig. 45 Detail of the externally occluded
FIGURES 1–39 in Three new Eunotia (Bacillariophyta) species from Acadia National Park, Maine, USA
FIGURES 1–39. Size reduction series of Eunotia novaeangliae sp. nov., LM. Figs 1–34 Valve views. Fig. 6 Photograph of the isotype specimen (Is). Fig. 10 Photograph of the holotype specimen (H). Figs 35–39 Frustules in girdle views, with noticeably long raphe slits. Pairs of photographs representing the same specimen in different focal planes are marked with "=". Scale bar = 10 µm.
FIGURES 49–55 in Three new Eunotia (Bacillariophyta) species from Acadia National Park, Maine, USA
FIGURES 49–55. Eunotia novaeangliae sp. nov., internal views, SEM. Figs 49–51 and 52–53 each represent the same specimen. Figs 49, 52, 54, 55 Whole valves. Figs 50, 51, 53 Details of internally unoccluded areolae and thickened helictoglossa structures with two expanding ribs to the opposite side of the valve. Fig. 50 Apex without a rimoportula. Figs 51, 53 Details of apices with rimoportulae. Scale bars = 1 µm.
Acadia National Park, U.S. National Park Service using Lakes and Stream Monitoring Protocol for National Parks in the Northeast Temperate Network, Version 1.1 (2006-2011)
Water quality data collected by Acadia National Park (U.S. National Park Service) staff using the procedures found in the Lakes and Stream Monitoring Protocol for National Parks in the Northeast Temperate Network, Version 1.1. Sampling occurs annually and is scheduled to continue indefinitely. Additional data from non-NPS collaborators are also included (in the pre-2006 sheets). Parameters measured in the field include Secchi transparency and surface temperature. Secchi depth was always measured using a viewing scope with "mask". Color, chlorophyll a, total nitrogen, total phosphorus, DOC, anion & cation samples were collected as grab samples or depth-integrated epilimnetic samples in lakes, and then sent to a central laboratory for analyses. These samples were collected in April, June, August and October. The National Water Quality Lab was used for analysis in 2006 & 2007; the Sawyer Environmental Chemistry Research Lab was used 2008-2011. Values below reporting/detection level indicated in associated "Flag" field. Empty cells with no associated flag indicate no data collected for parameter.
ME Acadia National Park Lake Nutrient data 1975-2005
Water quality data collected by Acadia National Park (U.S. National Park Service) staff using the procedures found in the Maine Department of Environmental Protection’s Lake Assessment Program Standard Operating Procedures (1975-2005 samples). Sampling occurs annually and is scheduled to continue indefinitely. Additional data from non-NPS collaborators are also included. Parameters measured in the field include Secchi transparency and surface temperature. Secchi depth was always measured using a viewing scope, and a viewing scope with "mask" was used from 1996 to present. Color, chlorophyll a, total nitrogen, total phosphorus, DOC, anion & cation samples were collected as grab samples or depth-integrated epilimnetic samples in lakes, and then sent to a central laboratory for analyses.
Influence of human disturbance on marine invertebrate biodiversity in Acadia National Park’s rocky intertidal community
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