Results 71 to 80 of about 587,642 (309)

Diatom‐Inspired 1D Immobile Robots Capable of 2D Collective Mobility

open access: yesAdvanced Intelligent Systems, EarlyView.
This study presents a diatom‐inspired robotic system that explores group coordination through limited physical interactions. The researchers tune groups of Barbots, simple robotic agents that possess neither individual mobility nor explicit communication capabilities, to achieve complex and adaptive collaboration based on environmental light.
Tianyi Hu   +4 more
wiley   +1 more source

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt   +6 more
wiley   +1 more source

Broad-Scale Relations between Conservation Reserve Program and Grassland Birds: Do Cover Type, Configuration and Contract Age Matter? [PDF]

open access: yes, 2010
The Conservation Reserve Program (CRP) is a voluntary cropland set-aside program where environmentally-sensitive cropland is retired to a conservation practice.
Bucholtz, Shawn   +3 more
core   +2 more sources

Cost, risk, landscape context, and potential treatments vary with biological value for conservation of declining grassland birds

open access: yesConservation Science and Practice
Spatially explicit models are an important component of systematic conservation planning, enabling the depiction of biodiversity metrics across landscapes and objective evaluation of candidate sites for conservation delivery.
Neal D. Niemuth   +3 more
doaj   +1 more source

Expert-based and correlative models to map habitat quality: Which gives better support to conservation planning?

open access: yesGlobal Ecology and Conservation, 2018
Biodiversity loss and habitat degradation are big challenges to be tackled by conservation planning since their effects on both ecological and social-economic systems are remarkably detrimental.
M. Di Febbraro   +7 more
doaj   +1 more source

New larval host plants for three butterfly (Lepidoptera, Papilionoidea) species from Rahr region of West Bengal, India [PDF]

open access: yesJournal of Insect Biodiversity and Systematics, 2023
Centranthera tranquebarica (Spreng.) Merr. (Orobranchaceae) and Mallotus repandus (Rottler) Müll. Arg. (Euphorbiaceae) are reported as new host plants of Junonia orithya (Linnaeus, 1758) (Nymphalidae) and Rapala manea (Hewitson, 1863) (Lycaenidae ...
Debdulal Banerjee   +2 more
doaj  

Evaluating the African arid corridor hypothesis: A meta‐analysis including the phylogenetic and biogeographical history of Sesamothamnus

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise We examined the African arid corridor (AAC) disjunction pattern of vascular plants between northeastern and southwestern Africa in the context of geological and climatic events since the late Miocene. We developed a phylogenetic and biogeographical framework for the arid‐adapted genus Sesamothamnus (Pedaliaceae), a classic example of ...
John G. Zaborsky   +6 more
wiley   +1 more source

Why do ICDPs fail? The relationship between subsistence farming, poaching and eco- tourism in wildlife and habitat conservation [PDF]

open access: yes
In this paper we investigate the reasons why integrated conservation and development projects (ICDPs) fail to achieve their conservation goals. We develop a bio-economic model of open access land and wildlife exploitation, which is consistent with many ...
Ralph Winkler
core  

Ecological niche modeling reveals habitat differentiation and climatic vulnerability in two imperiled, sympatric southern Appalachian carnivorous plants

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Understanding the habitat requirements of imperiled flora is critical for informing ex situ conservation practices, designing effective reintroduction strategies, and understanding how climate change will impact such species, especially in montane regions with high levels of environmental heterogeneity. In southern Appalachia, USA, the
Nicholas J. Chang   +6 more
wiley   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording   +4 more
wiley   +1 more source

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