Results 81 to 90 of about 104,616 (279)

The impacts of biological invasions

open access: yesBiological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

Does The Economic Value Of The Asian Elephant To Urban Dwellers Exceed Their Cost To The Farmers? A Sri Lankan Study [PDF]

open access: yes
Urban dwellers and farmers in the areas affected by human-elephant conflict in Sri Lanka are often in discord about the conservation of wild elephant in Sri Lanka.
Prof Clem Tisdell, R. Bandara
core  

The myth of the metabolic baseline: sleep–wake cycles undermine a foundational assumption in organismal biology

open access: yesBiological Reviews, EarlyView.
ABSTRACT Basal and standard metabolic rate (BMR and SMR) are cornerstones of physiological ecology and are assumed to be relatively fixed intrinsic properties of organisms that represent the minimum energy required to sustain life. However, this assumption is conceptually flawed. Many core maintenance processes underlying SMR are temporally partitioned
Helena Norman   +4 more
wiley   +1 more source

Genetic connectivity and population structure of African savanna elephants (Loxodonta africana) in Tanzania

open access: yesEcology and Evolution, 2020
Increasing human population growth, exurban development, and associated habitat fragmentation is accelerating the isolation of many natural areas and wildlife populations across the planet. In Tanzania, rapid and ongoing habitat conversion to agriculture
George G. Lohay   +4 more
doaj   +1 more source

Placental crises: disruptive selection and maternal under‐investment as the foundations of mammalian placental evolution and dysfunction

open access: yesBiological Reviews, EarlyView.
ABSTRACT Among the vertebrates, mammals are notable for the dominance of live birth and placental nutrition. The structural diversity of the mammalian placenta is remarkable, despite sharing a single common ancestor and conserved physiological functions.
Davis Laundon   +5 more
wiley   +1 more source

Empowering and conquering infirmity of visually impaired using AI‐technology equipped with object detection and real‐time voice feedback system in healthcare application

open access: yesCAAI Transactions on Intelligence Technology, EarlyView., 2023
Abstract The Internet of Things is emerging as a crucial technology in aiding humans and making their lives easier. Among the human population, a large percentage of people suffer from disabilities resulting in challenges in everyday life particularly people with visual disabilities.
Hania Tarik   +8 more
wiley   +1 more source

Beliefs, attitudes, and intentions for allowing elephants in group ranches around amboseli national park, Kenya

open access: yesWildlife Society Bulletin, 2013
Wildlife authorities and conservationists are working to improve attitudes toward elephants (Loxodonta africana) among residents of the Greater Amboseli Ecosystem in southern Kenya; yet information on existing attitudes and their antecedents is lacking ...
Christine Browne‐Nuñez   +2 more
doaj   +1 more source

Photoreversible Polyurea Actuators With Spatiotemporal Control and Adaptive Mechanics

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A light–thermal responsive polyurea network incorporating reversibly dimerizable anthracene units enables spatiotemporal modulation of cross‐linking density and nearly 400‐fold stiffness tuning. Integrating programmable anisotropy, photopatterning, self‐healing, and photowelding within a single framework, this bioinspired “one network–multifunction ...
Zhiwen Song   +7 more
wiley   +1 more source

The relationship of life stage to daily social patterns of captive African elephants (Loxodonta africana) and the correlation of handler perceptions of elephant personality to demonstrated social behaviors [PDF]

open access: yes, 2017
Elephants typically have very strong social bonds, and social interactions can include affiliative, agonistic, or ambiguous behaviors. The social interactions and dominance hierarchy between individuals of a herd depend upon many factors, including ...
Jeffrey, Alison
core   +1 more source

Usage of Specialized Fence-Gaps in a Black Rhinoceros Conservancy in Kenya [PDF]

open access: yes, 2016
Fencing is increasingly used in wildlife conservation. Keeping wildlife segregated from local communities, while permitting wildlife access to the greater landscape matrix is a complex task.
Davidson, Zeke   +4 more
core   +1 more source

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