Results 31 to 40 of about 6,579,623 (306)

Supernumerary teeth observed in a live True’s beaked whale in the Bay of Biscay [PDF]

open access: yesPeerJ, 2019
Mesoplodont beaked whales are one of the most enigmatic mammalian genera. We document a pod of four beaked whales in the Bay of Biscay breaching and tail slapping alongside a large passenger ferry.
James R. Robbins   +2 more
doaj   +2 more sources

Toward accurate species‐level metabarcoding of arthropod communities from the tropical forest canopy

open access: yesEcology and Evolution, 2019
Metabarcoding of arthropod communities can be used for assessing species diversity in tropical forests but the methodology requires validation for accurate and repeatable species occurrences in complex mixtures.
Thomas J. Creedy   +2 more
doaj   +1 more source

Legacies in life histories [PDF]

open access: yesIntegrative and Comparative Biology, 2006
Complex life-histories are common in nature, have many important biological consequences, and are an important focal area for integrative biology. For organisms with complex life-histories, a legacy is something handed down from an ancestor or previous stage, and can be genetic, nutritional/provisional, experiential, as well as the result of random ...
Dianna K, Padilla, Benjamin G, Miner
openaire   +2 more sources

To remain or leave: Dispersal variation and its genetic consequences in benthic freshwater invertebrates

open access: yesEcology and Evolution, 2019
Variation in dispersal capacity may influence population genetic variation and relatedness of freshwater animals thus demonstrating how life‐history traits influence patterns and processes that in turn influence biodiversity. The majority of studies have
Paolo Ruggeri   +2 more
doaj   +1 more source

Development of a recombinase polymerase amplification (RPA) fluorescence assay for the detection of Schistosoma haematobium

open access: yesParasites & Vectors, 2019
Background Accurate diagnosis of urogenital schistosomiasis is vital for surveillance and control programmes. While a number of diagnostic techniques are available there is a need for simple, rapid and highly sensitive point-of-need (PON) tests in areas ...
Penelope Rostron   +9 more
doaj   +1 more source

The Deep History of Life [PDF]

open access: yesThe Biomedical & Life Sciences Collection, 2012
The conventional fossil record is built of hard parts—bones, shells, and decay-resistant organic tissues buried in the sediments that accumulate on floodplains, in lakes, and on the seafloor. In the 1950s, geologists first began the routine application of radioactive decay to problems of geologic age.
openaire   +1 more source

Annual changes in the Biodiversity Intactness Index in tropical and subtropical forest biomes, 2001–2012

open access: yesScientific Reports, 2021
Few biodiversity indicators are available that reflect the state of broad-sense biodiversity—rather than of particular taxa—at fine spatial and temporal resolution.
Adriana De Palma   +7 more
doaj   +1 more source

Life History Variation in Primates [PDF]

open access: yesEvolution, 1985
Extensive variation in life-history patterns is documented across primate species. Variables included are gestation length, neonatal weight, litter size, age at weaning, age at sexual maturity, age at first breeding, longevity, and length of the estrous cycle. Species within genera and genera within subfamilies tend to be very similar on most measures,
Paul H, Harvey, T H, Clutton-Brock
openaire   +2 more sources

Holcophora Staudinger, 1871, a senior synonym of Aponoea Walsingham, 1905, syn. n., (Lepidoptera, Gelechioidea, Gelechiidae): with Holcophora inderskella (Caradja, 1920), comb. n., transferred from Blastobasis Zeller, 1855 (Blastobasidae) [PDF]

open access: yesNota Lepidopterologica, 2019
Blastobasis inderskella Caradja, 1920, is transferred from Blastobasidae to Gelechiidae and placed in the Palaearctic genus Holcophora Staudinger, 1871. The genus Aponoea Walsingham, 1905, syn.
David Adamski, Klaus Sattler
doaj   +3 more sources

Hyperthermophiles in the history of life [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2006
Today, hyperthermophilic (‘superheat-loving’) bacteria and archaea are found within high-temperature environments, representing the upper temperature border of life. They grow optimally above 80°C and exhibit an upper temperature border of growth up to 113°C.
openaire   +3 more sources

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