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104 results for “Forbs”
Biomass of harvested annual and perrenial forbs and grasses along fertilized and unfertilized ecosystem transects at the Jornada Basin LTER site in 1989
This data package contains biomass data for annual or perennial grasses and forbs harvested from quadrats along the Jornada Basin LTER (LTER-I) transects in southern New Mexico, USA. These transects are located in a livestock exclosure established in 1982 in the Chihuahuan Desert Rangeland Research Center (CDRRC) and run from the middle of the College Playa up to the foot of Mt. Summerford (2.7 km in length). Prior to the exclosure, the study site was moderately to heavily grazed for the past 100 years. The Treatment transect was treated annually with ammonium nitrate fertilizer (NH4NO3 at 10g N/m2/yr) until 1987. Along each transect, 91 stations, each with a plant intercept line, are spaced at 30 meter intervals. Each plant intercept line is perpendicular to the transect and is 30 meters in length broken into 5-meter segments. The included dataset includes biomass data for grasses and forbs clipped from 1 square meter quadrats directly downslope from some, but not all, of these segments. The harvest measurements occurred in September 1989. Data consists of the date, transect, station number, quad, JRN and USDA Plants species codes, species binomial, habit, form, and biomass. This study is complete.
Forbes Richest Athletes
<p>Dataset de prueba utilizado en la práctica de la asignatura Data Lyfe Cycle. Obtenido en: <a href="https://www.kaggle.com/datasets/parulpandey/forbes-highest-paid-athletes-19902019">https://www.kaggle.com/datasets/parulpandey/forbes-highest-paid-athletes-19902019</a></p>
Data for Forb diversity globally is harmed by nutrient enrichment but can be rescued by large mammalian herbivory
Forbs (“wildflowers”) are important contributors to grassland biodiversity and services, but they are vulnerable to environmental changes that affect their coexistence with grasses. In a factorial experiment at 94 sites on 6 continents, we tested the global generality of several broad predictions arising from previous studies: (1) Forb cover and richness decline under nutrient enrichment, particularly nitrogen enrichment, which benefits grasses at the expense of forbs. (2) Forb cover and richness increase under herbivory by large mammals, especially when nutrients are enriched as grazing will release forbs from decreased grass competition under fertilization. (3) Forb richness and cover are less affected by nutrient enrichment and herbivory in more arid climates, because water limitation reduces the impacts of competition with grasses. We found strong evidence for the first, partial support for the second, and no support for the third prediction. Forb richness and cover are reduced by nutrient addition, with nitrogen having the greatest effect; forb cover is enhanced by large mammal herbivory, although only under conditions of nutrient enrichment and high herbivore intensity; and forb richness is lower in more arid sites, but is not affected by consistent climate-nutrient or climate-herbivory interactions. We also found that nitrogen enrichment disproportionately affects forbs in certain families (Asteraceae, Fabaceae). Our results underscore that anthropogenic nitrogen addition is a major threat to grassland forbs and the ecosystem services they support, but grazing under high herbivore intensity can offset these nutrient effects. For associated r code that goes along with this dataset, please refer to the following Zenodo repository: https://zenodo.org/records/14207290
DEM01 Demographic studies of four forb species at Konza Prairie
Plant survival, growth, reproduction, and recruitment of 4 forb species (Amorpha canescens, Echinacea angustifolia, Aster oblongifolius, Kuhnia eupatorioides) were estimated annually within permanent transects in 20 watersheds, starting in 2020.
Dataset of Forbes Richest Athletes
<p>Dataset used for Data Lyfe Cycle practise. It can be obtained from: <a href="https://www.kaggle.com/datasets/parulpandey/forbes-highest-paid-athletes-19902019">https://www.kaggle.com/datasets/parulpandey/forbes-highest-paid-athletes-19902019</a></p>
Data for "Pollinator Conservation Paradox: Exotic Forbs Support Native Pollinators Under Global Changes" by Nelson, Seabloom and Borer 2025, California grasslands, 2023-2024
Data for analysis on how plant provenance mediates plant-pollinator interaction responses to fertilization and herbivore exclusion, associated with Nelson, Seabloom, and Borer 2025. Data on pollinator visitation and floral abundance were collected in plots that received factorial experimental treatments of combined nitrogen, phosphorus and potassium with micronutrients by herbivore exclusion fencing in three California grasslands in 2023-2024.
Flower and Leaf Phenology of Interior Alaska Forbs and Shrubs as Observed Near Fairbanks Alaska from 2013-2015
This dataset contains the dates of phenological phases for leaves and flowers of 42 species of forbs and shrubs (2 subspecies of one species) observed throughout the growing season in 2013, 2014 and 2015. Data were collected in three general areas: in the Bonanza Creek Experimental Forest, on the University of Alaska Fairbanks Campus, and in the woods near Pearl Creek Elementary School. Species are classified by origin (native or non-native), growth form (forb, dwarf shrub, or tall shrub), leaf habit (deciduous, wintergreen or evergreen), plant life history (annual, biennial, or perennial), and habitat (black spruce forest, mixed deciduous / coniferous forest, or disturbed habitat).
SRH01 Seed release height and terminal velocity of forb species at Konza Prairie
Height of seed release values recorded at Konza Prairie Biological Station (2022-2024) and terminal velocity measurements of seeds collected from those same species. Intended to for seed dispersal estimates.
Figure 2 in The tangled nomenclatural history of Haplopelia forbesi Salvadori, 1904: were Forbes and Robinson right all along?
Figure 2. Specimens of Lemon Doves Columba (Aplopelia) larvata in the Vertebrate Zoology collection at World Museum, National Museums Liverpool. From left to right (subspecies according to labels): bronzina (NML-VZ T13165), forbesi (NML-VZ D3567b), larvata (NML-VZ D4217), johnstoni (NML-VZ T18511), larvata (NML-VZ T16271), larvata (NML-VZ T8168) (© National Museums Liverpool [World Museum Liverpool] / John-James Wilson)
Figure 1 in The tangled nomenclatural history of Haplopelia forbesi Salvadori, 1904: were Forbes and Robinson right all along?
Figure 1. Forbes' Lemon Dove Haplopelia forbesi (NML-VZ D3567b) (top) and Caribbean Dove Leptotila jamaicensis (NML-VZ D3567a) (bottom) bequeathed by the 13th Earl of Derby to the people of Liverpool and now in the Vertebrate Zoology collection at World Museum, National Museums Liverpool (© National Museums Liverpool [World Museum Liverpool] / John-James Wilson)
Figure 4 in The tangled nomenclatural history of Haplopelia forbesi Salvadori, 1904: were Forbes and Robinson right all along?
Figure 4. Sub-tree (of a larger tree produced by Neighbor Joining) showing the four Lemon Dove Columba (Aplopelia) larvata cytochrome sequences in NCBI GenBank aligned by BLAST with the sequence from Forbes' Lemon Dove Haplopelia forbesi (NML-VZ D3567b). Sequences are annotated with the collection locality followed by the GenBank accession no.
Figure 3 in The tangled nomenclatural history of Haplopelia forbesi Salvadori, 1904: were Forbes and Robinson right all along?
Figure 3. The second specimen identified as Haplopelia forbesi Salvadori, now at the Natural History Museum at Tring (NHMUK 1896.10.22.1) (© Trustees of the Natural History Museum, London / A. Bond)
Рис. 1. Географическое поΛожение Норского заповеΑника (А) и картосхема распоΛожения на его территории (Б) учетных пΛощаΑок с фитоценозами (L_1–L_7) на Αвух мониторинговых станциях (I–II). I — МаΛьцевская: L_1 — березняк с участием осины и Λиственницы рябинниковый вейниково-разнотравный; L_2 — осиново-беΛоберезовый рябинниковый вейниково-разнотравный Λес; L_3 — Λиственничник с участием березы пΛоскоΛистной осоково-вейниковый с разнотравьем; L_4 — беΛоберезово-Λиственничный с примесью осины роΑоΑенΑроновый бруснично-осоковый Λес; L_5 — закустаренный, преимущественно тавоΛгой ивоΛистной, разнотравно-вейниковый Λуг. II — Антоновская: L_6 — Λиственничник роΑоΑенΑроново-брусничный; L_7 — Λиственнично-беΛоберезовый с примесью пихты и еΛи закустаренный разнотравно-вейниковый Λес (коΑ типа местообитания соответствуют таковому в табΛ. 1 и 3 и на рис. 2) Fig. 1. Geographical location of the Norsky Nature Reserve (A) and the map (B) of registration sites with phytocenoses (L_1–L_7) at two monitoring stations (I–II). I — Maltsevskaya: L_1 — birch forest with aspen and larch, fieldfare reed-forb; L_2 — aspen-white-birch, fieldfare reed-forb forest; L_3 — larch forest with flat-leaved sedge-reed birch with forbs; L_4 — white-birch-larch with an admixture of aspen rhododendron lingonberry-sedge forest; L_5 — bushy, mostly meadowsweet, forb-reed grass meadow. II — Antonovskaya: L_6 — rhododendron-cowberry larch forest; L_7 — larch-white-birch with fir and spruce, shrubby forb-reed grass forest (the code of the habitat type corresponds to that in Tables 1 and 3 and in Fig. 2) in Structure and dynamics of the taxocenes of shrews in different habitats of the Norsky nature reserve
Рис. 1. Географическое поΛожение Норского заповеΑника (А) и картосхема распоΛожения на его территории (Б) учетных пΛощаΑок с фитоценозами (L_1–L_7) на Αвух мониторинговых станциях (I–II). I — МаΛьцевская: L_1 — березняк с участием осины и Λиственницы рябинниковый вейниково-разнотравный; L_2 — осиново-беΛоберезовый рябинниковый вейниково-разнотравный Λес; L_3 — Λиственничник с участием березы пΛоскоΛистной осоково-вейниковый с разнотравьем; L_4 — беΛоберезово-Λиственничный с примесью осины роΑоΑенΑроновый бруснично-осоковый Λес; L_5 — закустаренный, преимущественно тавоΛгой ивоΛистной, разнотравно-вейниковый Λуг. II — Антоновская: L_6 — Λиственничник роΑоΑенΑроново-брусничный; L_7 — Λиственнично-беΛоберезовый с примесью пихты и еΛи закустаренный разнотравно-вейниковый Λес (коΑ типа местообитания соответствуют таковому в табΛ. 1 и 3 и на рис. 2) Fig. 1. Geographical location of the Norsky Nature Reserve (A) and the map (B) of registration sites with phytocenoses (L_1–L_7) at two monitoring stations (I–II). I — Maltsevskaya: L_1 — birch forest with aspen and larch, fieldfare reed-forb; L_2 — aspen-white-birch, fieldfare reed-forb forest; L_3 — larch forest with flat-leaved sedge-reed birch with forbs; L_4 — white-birch-larch with an admixture of aspen rhododendron lingonberry-sedge forest; L_5 — bushy, mostly meadowsweet, forb-reed grass meadow. II — Antonovskaya: L_6 — rhododendron-cowberry larch forest; L_7 — larch-white-birch with fir and spruce, shrubby forb-reed grass forest (the code of the habitat type corresponds to that in Tables 1 and 3 and in Fig. 2)
Fig. 6. Damesites sugata Forbes, 1846. A in Precursory siphuncular membranes in the body chamber of Phyllopachyceras and comparisons with other ammonoids
Fig. 6. Damesites sugata Forbes, 1846. A. UMUT MM 28661 from the middle Campanian in the Nio River, Nakagawa area, north Hokkaido. B. UMUT MM 28662 from the middle Campanian in the Nio River, Nakagawa area, north Hokkaido (all in median longitudinal section). A1. Unusually long septal neck, extending into the body chamber, showing locations of photo A2; its length is equivalent to the last cameral distance. A2. Anterior margin of the long septal neck, consisting of a nacreous layer. B1. Unusually long septal neck, extending into the body chamber, showing locations of photo B2; its length is equivalent to the last cameral distance. B2. Anterior margin of the long septal neck, consisting of a nacreous layer. Abbreviations: bc, body chamber; n, nacreous layer of septal neck; s, septum; sn, septal neck.
Differences in bee community composition between restored and remnant prairies are more strongly linked to forb community differences than landscape differences
<p>1. Grassland restoration is an important tool for conserving bee biodiversity within agricultural landscapes. Restorations foster increases in local bee abundance and α-diversity, however, these measures are insufficient for understanding if remnant communities are being conserved. We compared native bee α-diversity, β-diversity, and community composition between restored and remnant prairies in Minnesota, USA. We then investigated two potential drivers of bee community dissimilarity between restored and remnant prairies: proportion of agricultural land surrounding a restoration and differences in floral community between restored and remnant prairies.</p> <p>2. We selected ten restored prairies that lie along a gradient of increasing agricultural land cover, ranging from 20–85% of surrounding land in agricultural production. We paired each restoration with a nearby prairie remnant and sampled bee and floral communities concurrently in each restoration-remnant pair. We quantified bee and forb α-diversity, community composition, β-diversity, and levels of dissimilarity between restoration-remnant pairs along the gradient of agricultural development. Additionally, we quantified differences in the community weighted mean between restored and remnant prairies for two bee traits, oligolecty and tongue length, to investigate how differences in floral community between restored and remnant prairies may influence bee community composition.</p> <p>3. While bee α-diversity between restored and remnant prairies was similar, bee composition between restorations and remnants were significantly different with restorations being more homogenous than remnants. Differences in bee community composition and β-diversity were not statisticlly related to agricultural landscapes or floral community dissimilarity, however, we found a significantly higher proportion of oligolectic bees in remnant prairies. This difference in oligolectic bees was likely related to the absence of important host plants in restorations<i>.</i></p> <p>4. <i>'Synthesis and application'</i>: Prairie restorations should seek to provide diverse floral resources that are of similar composition to remnant prairies. Specifically, providing important floral host plants for pollen specialist bees could improve restorations' ability to conserve prairie remnant bee communities.</p>
Рис. 8–13. ΔанΑшафты Южного УраΛа (8–11) и Русской равнины (12–13). 8 – разнотравная степь у поΑножия горы ВербΛюжка, местообитание Cionus rossicus; 9 – ксерофитные Λуга в пойме реки УраΛ вбΛизи горы ВербΛюжка, местообитание Cionus rossicus; 10 – южные степи в районе КзыΛаΑырского карстового поΛя, местообитание Cionus gebleri; 11 – степи низкогорий Южного УраΛа бΛиз с. КиΑрясово, местообитание Smicronyx albopictus; 12 – КаменноброΑские меΛовые горы на юго-запаΑе ПривоΛжской возвышенности, местообитание Mecinus janthiniformis, Smicronyx robustus и S. albopictus; 13 – меΛовой останец КобыΛья ГоΛова в прироΑном парке «Àонской», местообитание Mecinus janthiniformis. Figs 8–13. Landscapes of the Southern Urals (8–11) and the Russian Plain (12–13). 8 – forb steppe at the down of Verblyuzhka Mt., habitat of Cionus rossicus; 9 – xerophytic meadows in the floodplain of the Ural River near Verblyuzhka Mt., habitat of Cionus rossicus; 10 – southern steppes in the Kzyladyr karst area, habitat of Cionus gebleri; 11 – steppes of the low mountains of the Southern Urals near Kidryasovo village, habitat of Smicronyx albopictus; 12 – Kamennobrodsky chalk mountains in the southwest of the Volga Upland, habitat of Mecinus janthiniformis, Smicronyx robustus, and S. albopictus; 13 – Cretaceous outlier Kobyl'ya Golova in the Donskoy Nature Park, habitat of Mecinus janthiniformis. in Interesting records of weevils (Coleoptera: Curculionidae: Curculioninae) in the steppe zone of the European part of Russia and the Urals
Рис. 8–13. ΔанΑшафты Южного УраΛа (8–11) и Русской равнины (12–13). 8 – разнотравная степь у поΑножия горы ВербΛюжка, местообитание Cionus rossicus; 9 – ксерофитные Λуга в пойме реки УраΛ вбΛизи горы ВербΛюжка, местообитание Cionus rossicus; 10 – южные степи в районе КзыΛаΑырского карстового поΛя, местообитание Cionus gebleri; 11 – степи низкогорий Южного УраΛа бΛиз с. КиΑрясово, местообитание Smicronyx albopictus; 12 – КаменноброΑские меΛовые горы на юго-запаΑе ПривоΛжской возвышенности, местообитание Mecinus janthiniformis, Smicronyx robustus и S. albopictus; 13 – меΛовой останец КобыΛья ГоΛова в прироΑном парке «Àонской», местообитание Mecinus janthiniformis. Figs 8–13. Landscapes of the Southern Urals (8–11) and the Russian Plain (12–13). 8 – forb steppe at the down of Verblyuzhka Mt., habitat of Cionus rossicus; 9 – xerophytic meadows in the floodplain of the Ural River near Verblyuzhka Mt., habitat of Cionus rossicus; 10 – southern steppes in the Kzyladyr karst area, habitat of Cionus gebleri; 11 – steppes of the low mountains of the Southern Urals near Kidryasovo village, habitat of Smicronyx albopictus; 12 – Kamennobrodsky chalk mountains in the southwest of the Volga Upland, habitat of Mecinus janthiniformis, Smicronyx robustus, and S. albopictus; 13 – Cretaceous outlier Kobyl'ya Golova in the Donskoy Nature Park, habitat of Mecinus janthiniformis.
Differences in bee community composition between restored and remnant prairies are more strongly linked to forb community differences than landscape differences
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Fungal root endophytes colonization of moist meadow forbs in 2017 at Niwot Ridge LTER site
Fungal root endophytes play an important role in plant nutrition, helping plants acquire nutrients in exchange for photosynthates. We sought to characterize the progression of root colonization by arbuscular mycorrhizal fungi (AMF), dark septate endophytes (DSE), and fine root endophytes (FRE) over an alpine growing season, and to understand the role of the host plant and environment in driving colonization levels. We sampled four forbs on a regular schedule from June 26th – September 11th from a moist meadow (3535 m.a.s.l) on Niwot Ridge, Rocky Mountain Front Range, Colorado, USA. We quantified the degree of root colonization by storage structures, exchange structures, and hyphae of all three groups of fungi. AMF and FRE percent colonization fluctuated significantly over time, while DSE did not. All AMF structures changed over time, and the degree of change in vesicles differed by plant species. FRE hyphae, AMF arbuscules and AMF vesicles peaked late in the season as plants produced seeds. AMF hyphae levels started high, decreased, and then increased within 20 days, highlighting the dynamic nature of plant-fungal interactions. Overall, our results show that AMF and FRE, not DSE, root colonization rapidly changes over the course of a growing season and these changes are driven by plant phenology and seasonal changes in the environment.
SGS-LTER Long Term Nitrogen Percentages in Grass, Forb and Shrub Species on the Central Plains Experimental Range, Nunn, Colorado, USA 1983 - 2008, ARS Stusy Number 6
This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and background information (proposals, reports, photographs, etc.) on the SGS-LTER project are contained in a comprehensive project collection within the Digital Collections of Colorado (http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429). The data table and associated metadata document, which is generated in Ecological Metadata Language, may be available through other repositories serving the ecological research community and represent components of the larger SGS-LTER project collection. Additional information and referenced materials can be found: http://hdl.handle.net/10217/83462. Aboveground plant nitrogen dynamics monitoring consists of two separate data sets. a) Long-term peak-crop nitrogen concentrations have been sampled since 1983 annually from sites sampled for ANPP estimates across the CPER. Plots are clipped for ANPP in August each year and include moderately grazed sites in sections 24 and 25, ungrazed treatments at ESA and owl creek, coarse textured soils in owl creek, fine textured soils in section 25, as well as three catena topopositions in section 24. These datasets have been designed for monitoring and so it is advised to consider calcuating average based at the transect level. B) Seasonal dynamics of life-form (dominant grass, forb, shrub species) nitrogen concentrations were obtained from random grab samples of aboveground plant tissue are taken monthly from May-Aug. and in Oct., Dec., Feb., and April from 1983 – 2007 at sites where ANPP has been collected since 1983 (ESA, ridge, mid-slope and swale in section 24). The objectives are to assess annual/seasonal weather and site productivity/management with quantity and quality of forage and/or litter production. Combined, these two data sets also provide an estimate of nitrogen yield
Data from: Rarity does not limit genetic variation or preclude subpopulation structure in the geographically restricted desert forb Astragalus lentiginosus var. piscinensis
Premise of the study: Characteristics of rare taxa include small population sizes and limited geographical ranges. The genetic consequences of rarity are poorly understood for most taxa. A small geographical range could result in reduced opportunity for isolation by distance or environment, thereby limiting genetic structure and variation, but few studies explore genetic structure at small spatial scales with sufficient resolution to test this hypothesis. Moreover, few comparative genetic studies exist among infrataxa differing in rarity. Here, we compare genetic variation among varieties of Astragalus lentiginosus differing in range size. Additionally, we ask if genetic structure exists in A. l. var. piscinensis, a rare taxon consisting of several thousand individuals that persist on ~8 km2 of alkaline soil. Methods: We compared genetic variation among 11 varieties of A. lentiginosus differing in range size using a genotyping by sequencing (GBS) approach, which generated 11,475 single nucleotide polymorphisms (SNPs). We characterized genetic structure among subpopulations of A. l. var. piscinensis using a second GBS dataset of 7,274 SNPs and explored associations between genetic structure and environmental variation. Key results: We found no association between genetic variation and range size among varieties of A. lentiginosus. Additionally, despite the extremely small range of A. l. var. piscinensis, we report a well-defined genetic structure among subpopulations associated with microhabitat variation in soil composition. Conclusion: Our results suggest that fine scale genetic structure may exist within other rare Astragalus taxa and that rarity does not preclude the maintenance of genetic diversity in this genus. In compliance with data protection regulations, please contact the publication office if you would like to have your personal information removed from the database.
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