Results 31 to 40 of about 103,509 (254)

Density‐dependence by habitat heterogeneity: individual quality versus territory quality [PDF]

open access: yesOikos, 2008
The aim of this comment is to review the ecological issues concerning the role of individual and habitat heterogeneity as possible mechanisms explaining density‐dependent fecundity in animal populations. Our intention is to discuss different approaches to determine whether or not studied populations are subjected to density‐dependent processes and ...
Balbontín, Javier, Ferrer, Miguel
openaire   +2 more sources

Rapid response of vascular plants and insects to restoration of montane grasslands

open access: yesFrontiers in Ecology and Evolution, 2023
IntroductionIndustrialization has ushered in massive changes in agriculture. Particularly in low mountain ranges, large-scale afforestation with Norway spruce on traditionally managed, semi-natural grasslands has caused a severe decline in biodiversity ...
Felix Helbing   +4 more
doaj   +1 more source

Effect of habitat quality on diet flexibility in Barbary macaques [PDF]

open access: yesAmerican Journal of Primatology, 2014
Barbary macaques live in extreme temperate environments characterized by strongly seasonal resource availability. They are mainly terrestrial while foraging, harvesting food from the herbaceous layer. These monkeys are threatened mainly because of anthropogenic habitat degradation.
Ménard, Nelly   +9 more
openaire   +4 more sources

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

open access: yesAdvanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds   +2 more
wiley   +1 more source

Birdsong as an Indicator of Habitat Structure and Quality

open access: yesEcology and Evolution
ABSTRACT Birdsong is a complex and highly flexible sexual signal that plays a crucial role in intra‐ and intersexual communication. Various aspects of the surrounding habitat can influence birdsong; for example, birds may modify their songs to enhance acoustic transmission, or males in high‐quality territories ...
Katalin Krenhardt   +6 more
openaire   +3 more sources

Habitat Selection by Two Species of Nectarivore: Habitat Quality Isolines [PDF]

open access: yesEcology, 1992
I present a model predicting the distribution and abundance of two species of competing nectarivore exploiting nectar in two types of flower. The model uses a submodel of resource renewal and depletion, and the principle that individuals attempt to maximize individual fitness, to construct habitat isolines.
openaire   +1 more source

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

open access: yesAdvanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

Habitat-Specific Foraging of Prothonotary Warblers: Deducing Habitat Quality [PDF]

open access: yesThe Condor, 2005
Abstract Foraging behavior often reflects food availability in predictable ways. For example, in habitats where food availability is high, predators should attack prey more often and move more slowly than in habitats where food availability is low.
openaire   +1 more source

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

open access: yesAdvanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang   +20 more
wiley   +1 more source

Black Carbon Absorption Enhancement During Particle Aging Is Constrained by Size‐Dependent Morphological Transition Thresholds

open access: yesGeophysical Research Letters
Quantifying the climate effects of black carbon (BC) requires resolving how atmospheric aging modifies the mixing state and light absorption of BC‐containing particles. Here, we optimize a tandem DMA‐SP2 system to obtain size‐resolved coating amount (MR)
Yan Peng   +8 more
doaj   +1 more source

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