Results 41 to 50 of about 6,528,551 (202)

Glacial cycles promote greater dispersal, which can help explain larger clutch sizes, in north temperate birds [PDF]

open access: yes, 2009
Earth’s glacial history and patterns in the life history traits of the planet’s avifauna suggest the following interpretations of how recent geological history has affected these key characteristics of the biota: 1) Increased colonizing ...
David W. Winkler   +4 more
core   +1 more source

New species of Anguillosyllis Day, 1963 (Annelida, Syllidae) from polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean

open access: yesEuropean Journal of Taxonomy
The benthic annelid fauna of polymetallic nodule fields in the eastern Clarion-Clipperton Zone (CCZ), abyssal Central Pacific has recently been the subject of taxonomic investigations aiming to document the biodiversity of this region.
Lenka Neal   +6 more
doaj   +1 more source

Transcriptomic evidence for visual adaptation during the aquatic to terrestrial metamorphosis in leopard frogs

open access: yesBMC Biology, 2022
Background Differences in morphology, ecology, and behavior through ontogeny can result in opposing selective pressures at different life stages. Most animals, however, transition through two or more distinct phenotypic phases, which is hypothesized to ...
Ryan K. Schott   +6 more
doaj   +1 more source

Exploring intraspecific life history patterns in sharks [PDF]

open access: yes, 2006
Marine ecosystems compose the major source (85%) of world fisheries production (Garcia and Newton, 1997). Although only a few fish species tend to dominate fishery catches (Jennings et al., 2001), a large diversity of fishes representing varied ...
Cope, Jason M.
core  

A Life History Study of Caecilius Aurantiacus (Hagen) (Psocoptera: Caeciliidae) [PDF]

open access: yes, 2017
Caecilius aurantiacus is a common, widely distributed psocid in well established forested areas of North America. Published information on this species is fragmentary and limited primarily to taxonomy.
Dunham, R. Scott
core   +2 more sources

Queen control of a key life-history event in a eusocial insect [PDF]

open access: yes, 2013
In eusocial insects, inclusive fitness theory predicts potential queen–worker conflict over the timing of events in colony life history. Whether queens or workers control the timing of these events is poorly understood.
Andrew F. G. Bourke   +5 more
core   +1 more source

Quo Vadis Venomics? A Roadmap to Neglected Venomous Invertebrates

open access: yesToxins, 2014
Venomics research is being revolutionized by the increased use of sensitive -omics techniques to identify venom toxins and their transcripts in both well studied and neglected venomous taxa.
Bjoern Marcus von Reumont   +2 more
doaj   +1 more source

Metabarcoding unsorted kick‐samples facilitates macroinvertebrate‐based biomonitoring with increased taxonomic resolution, while outperforming environmental DNA

open access: yesEnvironmental DNA, 2021
While previous studies have highlighted the potential of DNA‐based methods for the biomonitoring of freshwater macroinvertebrates, a limited number have investigated homogenization of bulk samples that include debris, in order to reduce sample‐processing
Lyndall Pereira‐da‐Conceicoa   +5 more
doaj   +1 more source

Age and body size of Rana amurensis from northeastern China

open access: yesCurrent Zoology, 2011
Age and body size are two important demographic traits that determine the life history strategies of populations and species. We measured these two parameters of Rana amurensis, at a 900 m and a 500 m altitude site in northeastern China. At the two sites,
Age structure, Body size; life history; Rana amurensis
doaj  

The Politics of Death:On Life after the ‘End of History'. [PDF]

open access: yes, 2003
In this paper, the most recent writings by Giorgio Agamben and Bruno Latour are brought into dialog by examining what light they shed on contemporary debates concerning “end of life” decisions.
Palladino, Paolo
core   +1 more source

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