Results 101 to 110 of about 12,185 (250)

A Multimodal Robot for Perching and Climbing on Vertical Outdoor Surfaces

open access: yesIEEE Transactions on Robotics, 2017
Perching can extend the useful mission life of a micro air vehicle. Once perched, climbing allows it to reposition precisely, with low power draw and without regard for weather conditions. We present the Stanford Climbing and Aerial Maneuvering Platform, which is to our knowledge the first robot capable of flying, perching with passive technology on ...
Morgan T. Pope   +9 more
openaire   +1 more source

Effects of Vector Density on Blood Parasite Spread and Health Consequences for Avian Hosts: An Experimental Epidemiology Blueprint

open access: yesIntegrative Zoology, EarlyView.
In an experimental epidemiology setup, groups of pigeons were exposed to different numbers of infective malaria vectors. Vector number explained the speed of transmission, the final prevalence, and changes in host behavior. ABSTRACT Vector density plays a critical role in the transmission dynamics of vector‐borne diseases and thus in their health and ...
Nayden Chakarov   +3 more
wiley   +1 more source

Acoustic indices are not useful for biodiversity research

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Biodiversity assessment using passive acoustic monitoring has historically been challenging due to the limited availability of multi‐species acoustic detectors. In this context, acoustic indices were introduced as an alternative way to represent species diversity in acoustic datasets.
Larissa S. M. Sugai   +6 more
wiley   +1 more source

Debris at the edge: sedimentological dynamics of Hintereisferner's evolving terminus and glacial forefield, Austrian Alps

open access: yesBoreas, EarlyView.
The interaction between glaciers and the debris accumulating on their surfaces is critical as the Earth warms, with consequences for ice dynamics, hydrology and mass balance together with slope and sedimentary processes. Understanding this interaction is necessary since it influences ablation rates, sediment and meltwater pathways.
Paulina Mejías Osorio   +5 more
wiley   +1 more source

Intraspecific phenotypic differences in climbing perch Anabas testudineus (Bloch, 1792) populations may be linked to habitat adaptations. [PDF]

open access: yesHeliyon, 2023
Khan Manon MR   +7 more
europepmc   +1 more source

When Similar Individuals Don't Attract: Absence of Assortative Mating by Coloration in a Damselfly With Honest Signaling

open access: yesEthology, EarlyView.
In Acanthagrion lancea damselflies, both sexes display blue ornamentation, but do they choose mates based on it? We tested whether mutual mate choice and time constraints influence ornament evolution. Blue coloration correlated with individual quality, but individuals did not choose mates based on color, and this was unaffected by time constraints over
Maria C. A. Melillo   +3 more
wiley   +1 more source

Floating Microplastics with Biofilm Changes Feeding Behavior of Climbing Perch Anabas testudineus

open access: yesMicroplastics
The climbing perch, Anabas testudineus, is one of the most widely distributed freshwater amphibious fishes in South and Southeast Asia, inhabiting both natural and artificial water bodies polluted by plastic waste.
Ekaterina V. Ganzha   +2 more
doaj   +1 more source

Impact of Salinity on the Incubation Rate and the Performance during the Nursery Phase of Square Head Climbing Perch (Anabas testudineus Bloch, 1792) [PDF]

open access: yesTropicultura, 2016
Square head climbing perch (Anabas testudineus Bloch, 1792) is a high quality fish without small bones. It grows in a wide range of temperatures (10-42 oC), pH (3.5-9.5) and salinity (up to 16%).
Le, DV., Ha, TN.
doaj  

Self-recruiting species (SRS) from farmer managed aquatic systems: are they important to the livelihoods of rural communities? [PDF]

open access: yes, 2004
Why are SRS important? The answer is to be found in this well-structured survey under: SRS as food source; SRS as additional source of cash income; Role of SRS in social capital.

core  

Mechanisms of Body Alignment in a Diurnal Songbird Migrant

open access: yesEthology, EarlyView.
The graphical abstract illustrates the body alignment mechanism of a diurnal songbird migrant, the dunnock (Prunella modularis). Dunnocks consistently expressed an angular body alignment, with inter‐individual variation at the level of the population.
Christina Spiliopoulou   +3 more
wiley   +1 more source

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