Results 41 to 50 of about 96,448 (214)

Land birds on atolls: diversity, origin, and function

open access: yesBiological Reviews, EarlyView.
ABSTRACT Oceanic islands are global hotspots of avian biodiversity and endemism. Their isolation and distinct environmental conditions have uniquely shaped the evolutionary trajectories of island birds, while, in turn, land bird communities have become critical providers of ecological functions to island ecosystems.
Sebastian Steibl   +6 more
wiley   +1 more source

Variation in Fluorescence in Some Northeast Atlantic Malacostraca (Pancrustacea)

open access: yesDiversity
Fluorescence is known to occur on varying surfaces across crustacea but is only cited in sporadic reports, despite being a potentially important visual signal and changing with development and within moult cycles.
Thomas I. Baxter   +2 more
doaj   +1 more source

Large parameter uncertainty persists in soil food web models integrating stoichiometry, respiration and assimilation

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Soil food web models are essential for linking animal diversity to carbon and nutrient cycling. However, it is unclear how soil animals regulate excess carbon when nutrient availability limits their growth and how to best represent animal respiration in these models. To
Robert W. Buchkowski   +8 more
wiley   +1 more source

'Natural experiment' demonstrates top-down control of spiders by birds on a landscape level.

open access: yesPLoS ONE, 2012
The combination of small-scale manipulative experiments and large-scale natural experiments provides a powerful approach for demonstrating the importance of top-down trophic control on the ecosystem scale.
Haldre Rogers   +3 more
doaj   +1 more source

Volumetric Comparison of Overall Brain and Neuropil Size Between Social and Non‐social Spiders: Exploring the Social Brain Hypothesis

open access: yesIntegrative Zoology, EarlyView.
Brain size may be influenced by the cognitive demands of sociality (social brain hypothesis). We used microCT to compare CNS and brain volumes in social versus solitary huntsman and crab spiders. Social huntsman spiders had larger arcuate and mushroom bodies, while social crab spiders had larger visual neuropils.
Vanessa Penna‐Gonçalves   +6 more
wiley   +1 more source

Comparative reproductive effort and fecundity in the spider crabs, leurocyclus tuberculosus and libinia spinosa (Majoidea, Brachyura) [PDF]

open access: yes, 2014
A comparative analysis of reproductive effort, fecundity, and egg weight was conducted in two species of spider crabs, Leurocyclus tuberculosus and Libinia spinosa, during one-year period.
Gonzalez Pisani, Ximena   +1 more
core   +1 more source

It's Complicated: How Sex, Family, and Season Affect Growth of a Sexually Size Dimorphic Spider

open access: yesIntegrative Zoology, EarlyView.
Extreme female‐biased sexual size dimorphism (SSD) in Nephilingis cruentata emerges when male and female growth trajectories diverge mid‐development. Seasonal effects influence both sexes similarly, but family effects are strongly sex‐specific. These patterns identify a critical developmental window for mechanistic studies of SSD.
Tim Prezelj   +3 more
wiley   +1 more source

The Australian Hydromyine Rodents—Their Interspecific Diversity and Reproductive Biology: A Review

open access: yesIntegrative Zoology, EarlyView.
There are two major groups, the Rattus species and the Hydromyini, in Australia. Clearly, the hydromyine rodents, unlike the Rattus genus, exhibit a diverse array of reproductive biological traits in both males and females, the full evolutionary significance of which has yet to be ascertained.
William G. Breed   +2 more
wiley   +1 more source

Taxonomic revision, molecular phylogeny and zoogeography of the huntsman spider genus Eusparassus (Araneae: Sparassidae) [PDF]

open access: yes, 2013
The spider genus Eusparassus Simon, 1903 (Araneae: Sparassidae: Eusparassinae; stone huntsman spider) is revised worldwide to include 30 valid species distributed exclusively in Africa and Eurasia. The type species E.
Moradmand, Majid
core  

The SPIDER CMB Polarimeter [PDF]

open access: yes, 2012
SPIDER is a balloon-borne millimeter-wave telescope designed to study the polarization of the Cosmic Microwave Background (CMB). SPIDER will map 10% of the full sky with degree-scale beams to search for the distinctive inflationary gravitational wave ...
Trangsrud, Amy Ruth
core   +1 more source

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