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21 results for “vernal pool”
Mohonk Preserve Amphibian and Water Quality Monitoring Dataset at 11 Vernal Pools from 1931-Present
"The Mohonk Preserve's Daniel Smiley Research Center has been monitoring species occupancy, reproductive success, and water quality of 11 vernal pools (Ski Loop, Bonticou, Terrace, Long Woodland Pool, Long Woodland Swamp, Oakwood, Sleepy Hollow, Hermits, North Mud Pond, Canaan, and Talus) on the Preserve each spring from April 1931 to May 2019 (present). This project aims to document changes in the reproductive behavior and phenology of amphibians and allow research access to historical, longitudinal records. The dataset is a paired record of amphibian occurence with environmental indicators spanning nearly 90 years of data collection. The dataset includes environmental conditions for the 730 sampling events associated with the species occurences with complete coverage air temperature and precipitation records and partial coverage for a variety of other weather and water quality measures. Species occurence data collection has included species identification and counts of live and dead adults, mated pairs, spermatophores, egg masses, juveniles, and tadpoles counts as well as a record of the level of frog calling. Weather conditions including precipitation, sky and wind codes; and water quality measurements including water temperature, pH, and depth. Collection of data was sporadic from 1931 - 1991 but has been collected consistently from 1991 to present. We also began monitoring dissolved oxygen, nitrate concentrations, and conductivity of the vernal pools using a YSI Sonde Professional Plus Instrument and turbidity using a turbidity tube in February 2018. The data collection is ongoing, as are digitization efforts, and the data package will receive periodic updates."
Long Term Research in Environmental Biology (LTREB): California vernal pool plant community ecology and restoration, 2000-2017
This data set includes annual vegetation data and selected water depth data collected during the period 2000-2017 from vernal pool basins that were constructed in 1999 as part of a large-scale vernal pool mitigation effort at Travis Air Force Base, California. The constructed pools covered an area of about 15 Ha and were located adjacent to a complex of naturally-occurring pools, which were used as reference sites for comparison. Five plant species were intentionally seeded into the pools according to five seeding treatment protocols to assess the influence of order of colonization, frequency of colonization, and dispersal limitation on vernal pool plant community assembly. Because water depth was known to influence plant species distributions, water depth was recorded weekly during the winter wet season in selected years for each constructed and reference pool at the site. Seed plots were 50 cm x 50 cm and were permanently marked and used for repeated sampling of vegetation from 2000-2017. For each plant species that occurred in the plots, the frequency of occurrence was recorded as the number of squares out of a 100-cell grid laid over the plot in which that plant species appeared. For the five species that were planted into the plots, the frequency was recorded, as above, but in addition the number of individuals of that species in the plot was also recorded.
Reinvasion of restored California vernal pools reveals the importance of long‐term restoration planning
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Coexistence within an endangered predator–prey community in California vernal pools
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Data from: Genome-wide SNP discovery in the annual herb, Lasthenia fremontii (Asteraceae): genetic resources for the conservation and restoration of a California vernal pool endemic
California vernal pool (VP) ecosystems support a diverse community of endemic plants that are threatened by multiple anthropogenic pressures, generating a need for molecular tools to quantify the extent and distribution of genetic variation in native populations. Here, we used RADseq to discover single nucleotide polymorphisms (SNPs) for a widespread VP endemic plant species, Lasthenia fremontii. We discovered nuclear-based SNPs using a RAD-tag library of 12 individuals from different VP complexes using SbfI, a restriction enzyme that does not cleave the chloroplast genome in Lasthenia. A total of 316,106 catalog loci were obtained across all twelve individuals in the library. Of these, 713 loci were polymorphic, yielding 3918 candidate SNPs. Next, we genotyped an additional 285 additional plants to validate and characterize 71 of the candidate SNPs. Of these, 44 were polymorphic among VP complexes. A preliminary analysis of the distribution of genetic variation using these loci revealed significant isolation-by-distance across the species' geographic range. Weaker, but in some cases significant, genetic differentiation was detected among subpopulations from different pools within a single VP complex. Thus, in this study, RADseq allowed the discovery of SNP markers that can characterize patterns of genetic variation at multiple spatial scales in L. fremontii, which can be used to inform the conservation and mitigation of VP populations.
FIGURE 5 in Genetic and phenotypic diversity of Branchinecta sandiegonensis (Crustacea: Anostraca) in the vernal pools of Baja California, México
FIGURE 5. Plots of effective size trends through time generated by Vareff. The x-axis represents time to the past expressed as the product of the generation time (T) by the mutation rate. The y-axis represents the effective size expressed as the log10 of theta, where theta = 4Neu. For abbreviations, see Fig. 1.
FIGURE 1 in Genetic and phenotypic diversity of Branchinecta sandiegonensis (Crustacea: Anostraca) in the vernal pools of Baja California, México
FIGURE 1. Geographic location of the 15 naturally occurring vernal pools sampled in Baja California, México. The main map
FIGURE 7 in Genetic and phenotypic diversity of Branchinecta sandiegonensis (Crustacea: Anostraca) in the vernal pools of Baja California, México
FIGURE 7. Phenotypic traits variation between sexes of B. sandiegonensis individuals in Baja California, México. Asterisks indicates significant differences between sexes at the P<0.0001 level.
FIGURE 6 in Genetic and phenotypic diversity of Branchinecta sandiegonensis (Crustacea: Anostraca) in the vernal pools of Baja California, México
FIGURE 6. Phenotypic trait variation of B. sandiegonensis individuals across the four geographic regions sampled in Baja California. Data with different uppercase letters are significantly different at the P<0.05 level, according to Tukey post-hoc tests. For abbreviations, see Fig. 1.
FIGURE 3. a in Genetic and phenotypic diversity of Branchinecta sandiegonensis (Crustacea: Anostraca) in the vernal pools of Baja California, México
FIGURE 3. a, Bayesian phylogenetic tree of B. sandiegonensis based on analysis of mitochondrial COI sequences, showing the two major clades: Clade A and Clade B (sensu Bohonak 2005). The 31 samples obtained in this study are denoted by rectangles, with colors corresponding to the region of collection. The 54 sequences downloaded from GenBank lack colored rectangles, and all are from the northern portion of the species' range in the USA (GenBank accession numbers: FJ439689-FJ439743). The tree was rooted with Branchinecta lynchi (GenBank accession numbers HM568501-HM568505). Numbers on branches indicate Bayesian posterior probabilities ≥0.8. b, Median-joining haplotype network based on 568 bp of the mitochondrial COI sequences. Circle size is proportional to haplotype frequencies; line length is roughly proportional to the estimated number of steps between haplotypes. Each geographic region is represented in a different color. For abbreviations, see Fig. 1.
FIGURE 2 in Genetic and phenotypic diversity of Branchinecta sandiegonensis (Crustacea: Anostraca) in the vernal pools of Baja California, México
FIGURE 2. Definition of the six morphometric traits measured on 232 individuals of B. sandiegonensis. Drawing modified from Fugate (1993) and morphometric features based on Timms (2012). a, total body length. b, thorax length. c, abdomen length. d, cercopod length. e, antennule length. f, right antenna length for males, and f1 for females.
FIGURE 4. a in Genetic and phenotypic diversity of Branchinecta sandiegonensis (Crustacea: Anostraca) in the vernal pools of Baja California, México
FIGURE 4. a, Principal components analysis of the individual genotypes, where the region was used as class factor for the analysis. Colors correspond to the region. b, Edwards genetic distance Dendrogram. The colors below names correspond to the region. c, plots of the genetic clusters inferred by STRUCTURE (K=2, 3, 4). Each vertical column represented an individual, and pools are indicated by the legend. For abbreviations, see Fig. 1.
Data from: Consequences of aboveground invasion by non-native plants into restored vernal pools do not prompt changes in belowground processes
<p>Given the frequent overlap between biological plant invasion and ecological restoration efforts it is important to investigate their interactions to sustain desirable plant communities and modify long-term legacies both above and belowground. To address this relationship, we used natural reference, invaded, and constructed vernal pools in the Central Valley of California to examine potential changes in direct and indirect plant effects on soils associated with biological invasion and active restoration ecosystem disturbances. Our results showed that through a shift in vegetation composition and changes in the plant community tissue chemistry, invasion by non-native plant species has the potential to transform plant inputs to soils in vernal pool systems. In particular, we found that while non-native litter decomposition was driven by seasonal and interannual variability, associated with changes in precipitation, the overall decomposition for non-native litter was drastically lower than native species. This shift has important implications for long-term alterations in plant-based inputs to soils in a negative feedback to nutrient cycling. Moreover, these results were independent of historic active restoration efforts. Despite the consistent shift in plant litter decomposition rates and community composition, we did not detect associated shifts in belowground function associated with invasion by non-native plants. Instead, soil C:N ratios and microbial biomass did not differ between invaded and reference naturally occurring pools but were reduced in the manipulated restored pools independent of invasion levels. Our results suggest that while there is an observed invasive positive feedback aboveground, this trajectory is not necessarily represented belowground and restoration legacies were still dominant ten years after practices were applied. Restoration practices that limit invasive plant feedbacks and account for soil legacy recovery, therefore offer the best solution for disturbed ephemeral ecosystems.</p>
Data from: Genome-wide SNP discovery in the annual herb, Lasthenia fremontii (Asteraceae): genetic resources for the conservation and restoration of a California vernal pool endemic
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Data from: Multi-scale resistant kernel surfaces derived from inferred gene flow: An application with vernal pool breeding salamanders
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2018 methane emission quantification controlled release test at the Merced Vernal Pools and Grassland Reserve with sUAS
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Data from: Consequences of aboveground invasion by non-native plants into restored vernal pools do not prompt changes in belowground processes
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Linked collectors and determiners for: Fairy Shrimp (Anostraca: Chirocephalidae) Inventory of Vernal Pools in Vermont, USA.
Natural history specimen data linked to collectors and determiners held within, "Fairy Shrimp (Anostraca: Chirocephalidae) Inventory of Vernal Pools in Vermont, USA". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/c08d3f47-c3df-4694-971c-dc33e87358ff">https://bionomia.net/dataset/c08d3f47-c3df-4694-971c-dc33e87358ff</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/c08d3f47-c3df-4694-971c-dc33e87358ff">https://gbif.org/dataset/c08d3f47-c3df-4694-971c-dc33e87358ff</a>. Formatted as a Frictionless Data package.
Rancho Seco vernal pool community data
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2017 methane emission quantification and localization controlled release test at the Merced Vernal Pools and Grassland Reserve with sUAS
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OpenNeuro
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