Results 71 to 80 of about 6,314 (245)

Concrete jungle to urban oasis: evaluating scale, vegetation cover, and aggregation of urban greenspaces on wildlife

open access: yesWildlife Biology, EarlyView.
Urban greenspaces are a haven for wildlife in densely populated cities. Wildlife use greenspaces for resource acquisition, shelter, and travel across urbanized landscapes. Greenspace metrics such as herbaceous or woody landcover, size, patchiness, and human land use influence species richness.
Adrianna J. Elihu, Janel L. Ortiz
wiley   +1 more source

Concrete Habitat Severely Decreases the Reproductive Output of Two Urban Birds

open access: yesConservation Letters
The conversion of natural habitats to impervious surfaces in cities affects biotic and abiotic attributes of urban ecosystems. However, detailed information on the gradual influence of impervious surfaces on reproductive output is lacking.
Michela Corsini, Marta Szulkin
doaj   +1 more source

Impact of snow cover on impervious surface detection

open access: yesInternational Journal of Remote Sensing, 2018
Traditionally, snow cover has been seen as an obstacle to land-cover classification and impervious surface detection based on remote sensing. However, snow cover increases the spectral contrast between impermeable surfaces and other land-use types. This study evaluated the impact of snow cover on the accuracy of impervious surface detection based on ...
Andrzej Z. Kotarba, Artur Nowakowski
openaire   +1 more source

A Novel Remote Sensing Index for Extracting Impervious Surface Distribution from Landsat 8 OLI Imagery

open access: yesApplied Sciences, 2019
The area of urban impervious surfaces is one of the most important indicators for determining the level of urbanisation and the quality of the environment and is rapidly increasing with the acceleration of urbanisation in developing countries. This paper
Hong Fang, Yuchun Wei, Qiuping Dai
doaj   +1 more source

Global meta‐analysis reveals urban‐associated behavioural differences among wild populations

open access: yesJournal of Animal Ecology, EarlyView.
Urbanization drives rapid phenotypic change, yet broad patterns of behavioural responses remain unclear. Using a global phylogenetic meta‐analysis, we show urban populations exhibit increased boldness, aggression, exploration and activity—especially in birds—highlighting consistent behavioural shifts and revealing major taxonomic gaps that limit our ...
Tracy T. Burkhard   +2 more
wiley   +1 more source

Improving the Impervious Surface Estimation from Hyperspectral Images Using a Spectral-Spatial Feature Sparse Representation and Post-Processing Approach

open access: yesRemote Sensing, 2017
Impervious surfaces have been widely recognized as an indicator for urbanization and environment monitoring. Plenty of methods have been proposed to extract impervious surfaces using remote sensing images.
Shuai Liu, Guanghua Gu
doaj   +1 more source

Beyond first clutches: Second broods reshape selection on breeding timing in forest and urban great tits

open access: yesJournal of Animal Ecology, EarlyView.
Most studies of selection on breeding timing consider only first clutches. Using a 13‐year dataset of urban and forest great tits, we show that including second broods reshapes estimates of natural selection, revealing that early breeding is favoured through increased probability of multiple brooding and higher annual reproductive output.
Jérémy Defrance   +5 more
wiley   +1 more source

Correlation Between Impervious Surface and Surface Temperature Change in Typical Urban Agglomerations—The Case Study of Xuzhou City, China

open access: yesApplied Sciences
Impervious areas are one of the important indicators for evaluating the urbanization process, while surface temperature is one of the reference factors for evaluating the urban environment.
Yandong Gao   +8 more
doaj   +1 more source

Habitat Features, Coyotes, and Humans Drive Diel Activity Variation Among Sympatric Mammals

open access: yesIntegrative Zoology, EarlyView.
We found that multiple mammal species show considerable variation in diel activity in response to several factors, with biotic variables (habitat features and the presence of coyotes Canis latrans) having the strongest overall effects. Our results have important implications for trophic dynamics. Future studies will need to account for these underlying
Nathan J. Proudman, Maximilian L. Allen
wiley   +1 more source

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