Results 41 to 50 of about 6,304 (206)

The Daily Texan [PDF]

open access: yes, 2016
Texas Student ...
University of Texas at Austin
core   +1 more source

Expanding the knowledge of Ruddy Shelduck (Tadorna ferruginea Pallas, 1764) distribution in Serbia: New findings and implications for conservation [PDF]

open access: yesKragujevac Journal of Science
The Ruddy Shelduck (Tadorna ferruginea) is a vagrant passage and wintering species whose presence and distribution in Serbia have been inadequately studied. This study presents new findings of T.
Nikolić Marko Lj., Medenica Ivan J.
doaj   +1 more source

Fall Field Report, August–November 2016 [PDF]

open access: yes, 2016
As usual, there was quite a bit to chew over in the Fall Seasonal Report, although it was generally a pretty uneventful season, especially among waterfowl and shorebirds.
Silcock, W. Ross
core   +1 more source

Migration speed, timing, and long‐term shifts in age structure in North American passerines during fall migration

open access: yesEcography, EarlyView.
Migration is challenging for birds, especially juveniles, who experience high mortality rates during migration. The challenge is exacerbated in the Anthropocene, contributing to widespread population declines. Conservation efforts focused on increasing juvenile survival could bolster population recovery.
Dylan M. Osterhaus   +2 more
wiley   +1 more source

Natural history and community science records confirm rapid geographic shifts in the distribution of Bachman’s Sparrow (Peucaea aestivalis) since 1850

open access: yesAvian Conservation and Ecology, 2022
North American grassland birds colonized emerging habitat created by expanding agriculture in a pattern of eastward expansions from the mid-1800s to mid-1900s.
Amie E. Settlecowski   +4 more
doaj  

Dissecting empathy: high levels of psychopathic and autistic traits are characterised by difficulties in different social information processing domains

open access: yesFrontiers in Human Neuroscience, 2013
Individuals with psychopathy or autism spectrum disorder (ASD) can behave in ways that suggest lack of empathy towards others. However, many different cognitive and affective processes may lead to unempathic behavior and the social processing profiles of
Patricia L Lockwood   +4 more
doaj   +1 more source

Comparing the reliability of relative bird abundance indices from standardized surveys and community science data at finer resolutions.

open access: yesPLoS ONE, 2021
Biodiversity loss is a global ecological crisis that is both a driver of and response to environmental change. Understanding the connections between species declines and other components of human-natural systems extends across the physical, life, and ...
Mei-Ling Emily Feng, Judy Che-Castaldo
doaj   +1 more source

Global analysis of annual survival among shorebirds reveals a negative effect of migration distance and a decline in recent decades

open access: yesOikos, EarlyView.
Annual survival is a key demographic parameter driving population trends in wildlife populations. However, despite numerous species‐specific or regional studies, global reviews of the factors affecting the survival of declining taxa remain scarce. Here, we investigated annual survival of fledged immature and adult shorebirds, a globally‐distributed and
Guillaume Dillenseger   +5 more
wiley   +1 more source

The Devil is in the Tails: Fine-grained Classification in the Wild [PDF]

open access: yes, 2017
The world is long-tailed. What does this mean for computer vision and visual recognition? The main two implications are (1) the number of categories we need to consider in applications can be very large, and (2) the number of training examples for most ...
Perona, Pietro, Van Horn, Grant
core   +1 more source

Parallel Space-Time Kernel Density Estimation

open access: yes, 2017
The exponential growth of available data has increased the need for interactive exploratory analysis. Dataset can no longer be understood through manual crawling and simple statistics.
Delmelle, Eric   +4 more
core   +1 more source

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