Notes on the Prairie Nymph, Herbertia lahue ssp. caerulea, (Iridaceae) at Vicksburg Military National Military Park, Mississippi

The prairie nymph, Herbertia lahue ssp. caerula, is a critically imperiled grassland plant in Mississippi. A large population of the prairie nymph occurs at the Vicksburg National Military Park. This population of prairie nymph occurs in a managed anthropogenic grassland with a host of associated native and exotic species. With the assistance of National Park Service staff an experiment investigating the effects of their mowing and a study of the growing conditions and pollinators of the plant was initiated. The mowing experiment was abandoned after two years because of the COVID-19 pandemic and yielded no significant results. Here we report on the growing conditions and associated species. The syrphid fly, Toxomerus marginatus, was observed to be a frequent flower visitor. © Copyright 2022 Southern Appalachian Botanical Society.

Records of cancelled spring burning of semi-natural grasslands in Japan due to the COVID-19 in 2020

Since the beginning of 2020, COVID-19 is raging around the world. Some of areas in Japan have cancelled spring burning of semi-natural grasslands to prevent the spread of COVID-19. Because records of the impact of the infection on grassland management are considered important, I have documented the information found on the internet about cancelled spring burning related to COVID-19. From late February to mid-May 2020, I searched for any combination of keywords including "Hiire", "Noyaki", "Yamayaki", "Yoshiyaki" (These four words mean "burning" in Japanese.), "corona", and "cancelled" using Google and social networking sites (e.g. Twitter and Facebook) to gather information about cancelled burning due to COVID-19. As a result, I found that burning was cancelled in 18 grasslands in 14 prefectures, and carried out with restrictions in four grasslands in four prefectures in Japan. These cancellation of spring burnings of semi-natural grassland by COVID-19 could affect biodiversity of grasslands and the safe burning of the following year and beyond.

Urban Cemeteries as Shared Habitats for People and Nature: Reasons for Visit, Comforting Experiences of Nature, and Preferences for Cultural and Natural Features

Cemeteries are globally culturally protected greenspaces in cities that meet different societal needs and often harbor high biodiversity. To harness the potential of cemeteries as urban green infrastructure, stakeholders need to understand why people visit cemeteries and their preferences. We conducted an online survey in Berlin, Germany (n = 627) to understand (i) the reasons for cemetery visits;(ii) preferences for cemetery features;(iii) the effect of a dead tree as a wilderness component on preferences for differently managed green areas (wild, meadows, lawns);(iv) preferences of nature elements as comforting experiences;and (v) how reasons for the visit and sociodemographic variables relate to respondents’ preferences. The major reasons to visit cemeteries were ‘enjoying nature’, ‘mourning’, and ‘historical interest’ and most preferred cemetery features were ‘wildlife‘, ‘solitude’, and ‘vegetation‘. Presenting a dead tree did not modulate preference ratings for green areas that were depicted on photographs. Comforting experiences with nature elements were high overall. The reasons to visit had besides socio-demographic variables predictive potential on pronounced preferences. The results underscore the importance of cemeteries as multidimensional places and indicate tolerance for the inclusion of dead trees as important wildlife habitat. Strategies to develop cemeteries as shared habitats for people and nature should also consider, besides socio-demographic background, the reasons for cemetery visits.

Increasing threat of wildfires: the year 2020 in perspective: A Global Ecology and Biogeography special issue

Aim: Each year, wild and managed fires burn roughly 4 million km(2) [similar to 400 million hectares (Mha)] of savanna, forest, grassland and agricultural ecosystems. Land use and climate change have altered fire regimes throughout the world, with a trend toward higher-severity fires found from Australia, the Americas, Europe and Asia, to the Arctic. In 2020, there were notable catastrophic fires in Australia (in the 2019/20 Austral fire season), the Western United States, South America and Siberia. These fires defined much of the global fire year and were compounded by the socio-economic disruption of the Coronavirus 2019 (COVID-19) pandemic. Location: Global. Time period: 2020. Major taxa studied: Flora and fauna. Methods: The Global Ecology and Biogeography special issue, 'Increasing threat of wildfires: the year 2020 in perspective', includes 18 papers that catalogue these fire events, their drivers and their impacts on flora and fauna. Results: Collectively, these papers highlight the importance of fire response traits, exposure and sensitivity to interacting threats in determining fire impacts. Main conclusions: The scale of the 2020 megafires has helped identify new research areas required to more comprehensively assess fire impacts on biodiversity and biogeochemistry and to inform ecosystem management.

Spatiotemporal evolution and suitability of apple production in China from climate change and land use transfer perspectives

Apple production in China, the world's largest apple producer and consumer, is challenged by a huge and growing population coupled with rapid industrialisation and urbanisation. China's apple output has increased continuously over the past 42 years with distinctive spatial differences. Herein, changes in the spatial patterns of apple production increases, and their potential impact factors in China are described at the provincial level. Between 1978 and 2019, the centre‐of‐gravity of apple production shifted southwest towards the upper reaches of the Yellow River, the main water source for agricultural irrigation in North China. Analysis of absolute and relative growth of apple output reveals that the Loess Plateau, characterised by fragile habitat and low land productivity, has gradually become a major contributor to apple production. Despite annual increases in apple output, apple production system has become more fragile and unstable overtime, especially in the Shaanxi‐Gansu region where apple cultivation is prevalent. With continuous changes in policy, the amount of forest transfer (i.e. the area of other land use types converted to forest) has significantly affected the impact of standardised precipitation evapotranspiration index on apple production increases in China. Thus, to prevent the degradation of new forests, a differentiated management and protection system should be implemented for apple planting sub‐regions. This should include altering subsidy policies on apple production, enhancing soil erosion control in the Loess Plateau and strengthening ecological management of forests and grassland.

Arriving at a natural solution: Bundling credits to access rangeland carbon markets

On the Ground•Natural solutions, such as “avoided conversion of grasslands,” offer agricultural land managers a way to mitigate climate change while monetizing climate benefits.•Managers who avoid converting grasslands to other uses, such as row crops, can quantify the amount of stored carbon and sell credits, but high costs of developing carbon credit projects price many landowners out of the carbon market.•Aggregation can create economies of scale, which lower barriers of entry and allow more landowners to participate in the market.•Given the current low prices in the carbon market, aggregation is not a panacea and aggregated projects are not financially viable for many landowners.•As the demand for carbon credits continues to grow, land managers can position themselves to take advantage of carbon market opportunities should prices increase, and projects become financially viable.

Applicability of Grassland Production Estimation Using Remote Sensing for the Mongolian Plateau by Comparing Typical Regions in China and Mongolia

Grasslands on the Mongolian Plateau are critical for supporting local sustainable development. Sufficient measured sample information is the basis of remote sensing modeling and estimation of grassland production. Limited by field inventory costs, it is difficult to collect sufficient and widely distributed samples in the Mongolian Plateau, especially in transboundary areas, which affects the results of grassland production estimation. Here, considering that the measured sample points are sparse, this study took Xilingol League of Inner Mongolia Autonomous Region in China and Dornogovi Province in Mongolia as the study areas, introduced multiple interpolation methods for interpolation experiments, established a statistical regression model based on the above measured and interpolated samples combined with the normalized differential vegetation index, and discussed the applicability of grassland production estimation. The comparison results revealed that the point estimation biased sample hospital-based area disease estimation method and radial basis function showed the best interpolation results for grassland production in Xilingol League and Dornogovi Province, respectively. The power function model was suitable for grassland production estimation in both regions. By inversion, we obtained annual grassland production for 2010–2021 and the uneven spatial distribution of grassland production in both regions. In these two regions, the spatial change in grassland production showed a decreasing trend from northeast to southwest, and the interannual change generally showed a dynamic upward trend. The growth rate of grassland output was faster in Xilingol League than in Dornogovi Province with similar physical geography and climate conditions, indicating that the animal husbandry regulation policies play important roles beyond the influence of climate change. The study recommended grassland estimation methods for an area with sparse samples and the results can be used to support decision making for sustainable animal husbandry and grassland succession management.