Results 101 to 110 of about 8,582 (295)

Flora, fauna and natural habitats recorded during field observations along the Shabab 1 Pipeline (Abqaiq to Rub al Khali) and in the Shaybah Oilfield, Rub al Khali, Eastern Province, Saudi Arabia: 24 May - 1 June 2010

open access: yes, 2011
During the period 24 May to 1 June 2010 observations were made of the flora, fauna and habitats of two study areas in the Rub al Khali in the Eastern Province of Saudi Arabia.
Jennings, Michael C.
core  

Occurrence patterns of dead wood and wood-dependent lichens in managed boreal forest landscapes [PDF]

open access: yes, 2013
Dead wood is a key resource for biodiversity, on which thousands of forest organisms are dependent. Because of current forest management, there has been a large-scale change in dead wood amounts and qualities, and consequently, many wood-dependent ...
Svensson, Måns
core  

Do Universal Free School Meals Improve the Dietary Quality of Food‐At‐Home Purchases?

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Since 2014, the number of schools offering universal free meals to all enrolled children without requiring annual meal applications has increased meaningfully. Using USDA's Purchase to Plate Crosswalk, a difference‐in‐differences framework, and a nationwide consumer panel, the effect of universal‐free‐meal exposure on the diet quality of food ...
Xueying Ma   +2 more
wiley   +1 more source

Agricultural Diversification at the Margin. Strategies and Determinants in Italian Mountain and Remote Areas

open access: yesAgribusiness, EarlyView.
ABSTRACT This paper explores the convergence in on‐farm diversification strategies of agricultural holdings, between remote areas and more central ones. Using Italian farm‐level data, we explore the determinants of diversification strategies across farms.
Gianluca Grilli   +2 more
wiley   +1 more source

Potential Effects of Amynthas Agrestis Invasion on Woody Understory Flora in the CVNP

open access: yes, 2022
Ohio forests are threatened by the invasive ecosystem engineer A. agrestis. A. agrestis invasion typically co-occurs with the ecosystem engineer, Odocoileus virginianus, where their impacts may synergize. To determine the direct effects of A.
MAMMANA, CHRISTIAN
core   +1 more source

Survival in the alpine landscape : genetic, demographic and reproductive strategies of the rare monocarpic perennial "Campanula thyrsoides" in the Swiss Alps [PDF]

open access: yes, 2006
Campanula thyrsoides is one of the few monocarpic perennials in the Swiss Alps. Genetic connectivity among populations of this species is impeded due to the heterogeneity of the alpine environment and consequently, a significant pattern of decreasing ...
Kuss, Patrick
core   +1 more source

A new species of Bonnetia Mart. (Bonnetiaceae) from the Pantepui of South America [PDF]

open access: yesPhytoKeys
Bonnetia is the most representative genus of the Pantepui woody flora and is among the groups with the greatest endemism in the local flora. The genus has 28 currently recognized species in tropical America, 26 of them endemic to the Pantepui.
Rafael G. Barbosa-Silva   +2 more
doaj   +3 more sources

Regional Differences in U.S. Consumer Preferences for Native Woody Shrubs With Varying Aesthetic Characteristics

open access: yesAgribusiness, EarlyView.
ABSTRACT Native plants offer a variety of aesthetic (e.g., fall colour, fruit, flowers) and functional benefits (e.g., pollinator friendly, wildlife friendly, water management). How these benefits influence consumer choice and perceived value of native versus introduced plants is not well understood.
Alicia Rihn   +3 more
wiley   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios   +4 more
wiley   +1 more source

How cold is too cold? A theoretical analysis of the optimal trigger for index insurance for frost damage to crops

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Crop insurance is undoubtedly an extremely valuable element in protecting agricultural businesses, but in many cases standard indemnity‐based products have had very low uptake due to high transaction costs elevating premiums to unaffordable levels.
Amogh Prakasha Kumar   +2 more
wiley   +1 more source

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