Results 51 to 60 of about 7,651 (208)

X-ray phase contrast imaging of biological specimens with tabletop synchrotron radiation [PDF]

open access: yes, 2011
Since their discovery in 1896, x-rays have had a profound impact on science, medicine and technology. Here we show that the x-rays from a novel tabletop source of bright coherent synchrotron radiation can be applied to phase contrast imaging of ...
Alexander G. R. Thomas   +15 more
core   +2 more sources

Use of stable isotopes to assess the intraspecific foraging niche of males and female colour morphs of the damselfly Enallagma hageni [PDF]

open access: yes, 2013
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/102631/1/een12075 ...
Fincke, Ola M.   +2 more
core   +1 more source

Beyond Sexual Selection: Natural Selection Related Camouflage and Thermoregulation Shape Sexual Color Dimorphism in Diploderma Lizards

open access: yesIntegrative Zoology, EarlyView.
Integrating comparative spectrometry, image analysis, and thermal modeling, we reveal that (1) females optimize crypsis via background matching, (2) males prioritize high‐contrast disruptive patterning at a significant thermoregulatory cost (reduced solar heat gain), and (3) habitat‐specific monomorphism in Diploderma slowinskii underscores ecological ...
Yuning Cao, Lin Shi, Yin Qi
wiley   +1 more source

Ebony Jewelwing, Black-Winged Damselfly (suggested common names) Calopteryx maculata (Beauvois, 1807) (Insecta: Odonata: Calopterygidae)

open access: yesEDIS, 2018
This EDIS publication is an alternate version of a page published first on the Featured Creatures website. The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida.
Alfred Runkel   +2 more
doaj   +5 more sources

Diversity and Community Structure of Dragonfly and Damselfly (Odonata) at the Selorejo Waterfall Area, Ponorogo Regency, East Java Indonesia

open access: yesJurnal Riset Biologi dan Aplikasinya, 2021
Selorejo Waterfall is a natural tourism area that is quite far from downtown Ponorogo and directly adjacent to the Gunung Sigogor Nature Reserve. Hence, this area has the potential as a natural habitat for dragonfly and damselfly.
Muhamad Azmi Dwi Susanto, Siti Zulaikha
doaj   +1 more source

Macromia alleghaniensis (Odonata: Macromiidae): New For Michigan, with Clarifications of Northern Records [PDF]

open access: yes, 2017
An Alleghany River Cruiser, Macromia alleghaniensis Williamson (Odonata: Macromiidae), collected in Cass County, Michigan on 18 June 2014, represents the first record of the species for the state, as well as the northernmost unequivocal record in North ...
Craves, Julie A, O’Brien, Darrin S
core   +2 more sources

A century of theories of balancing selection

open access: yesBiological Reviews, EarlyView.
ABSTRACT Traits that affect organismal fitness are often highly genetically variable. This genetic variation is vital for populations to adapt to their environments, but it is also surprising given that nature – after all – ‘selects’ the best genotypes at the expense of those that fall short.
Filip Ruzicka   +10 more
wiley   +1 more source

Mate recognition in Acanthagrion truncatum (Odonata: Coenagrionidae) - doi: 10.4025/actascibiolsci.v35i3.16138

open access: yesActa Scientiarum: Biological Sciences, 2013
Sexual and species recognition, along with sexual color dimorphism, play an important role in the reproduction of many animal species. In this article, it was investigated if males of the dimorphic Neotropical damselfly Acanthagrion truncatum are able ...
Rhainer Guillermo-Ferreira   +1 more
doaj   +1 more source

Diversity of UV Reflection Patterns in Odonata

open access: yesFrontiers in Ecology and Evolution, 2020
Dragonflies and damselflies (Odonata) are large-eyed diurnal insects that exhibit a variety of color patterns on their wings and/or bodies. Because Odonata can perceive light with wavelengths extending from ultraviolet (UV) to red, the color patterns ...
Ryo Futahashi
doaj   +1 more source

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