Results 51 to 60 of about 218,461 (283)
Speciation and the evolution of dispersal along environmental gradients [PDF]
, 2009 We analyze the joint evolution of an ecological character and of dispersal distance in asexual and sexual populations inhabiting an environmental gradient.
Dieckmann, U., Heinz, S.K., Mazzucco, R.
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Inbreeding depresses short and long distance dispersal in three congeneric spiders [PDF]
, 2009 Dispersal is one of the most important precopulatory inbreeding avoidance mechanisms and subject to landscape related selection pressures. In small populations, inbreeding within and between populations may strongly affect population dynamics if it ...
Bonte, D.
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New radiocarbon dates from the Bapot-1 site in Saipan and Neolithic dispersal by stratified diffusion [PDF]
, 2010 The colonisation of the Mariana Islands in Western Micronesia is likely to represent an early ocean dispersal of more than 2000 km. Establishing the date of human arrival in the archipelago is important for modelling Neolithic expansion in Island ...
Carson, Mike +4 more
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An inordinate fondness?: the number, distributions, and origins of diatom species [PDF]
, 2013 The number of extant species of diatoms is estimated here to be at least 30,000 and probably ca. 100,000, by extrapolation from an eclectic sample of genera and species complexes.
Mann, David G, Vanormelingen, Pieter
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AMPHIBIAN DISTRIBUTION IN THE GEORGIA SEA ISLANDS: IMPLICATIONS FROM THE PAST AND FOR THE FUTURE [PDF]
, 2020 We summarized amphibian distributions for 12 coastal islands in Georgia, USA. Occurrence among islands was correlated with life history traits, habitats, island size, distance to other islands, and island geological age.
Carroll, C. Ron +3 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Families of children with cancer experience significant financial strain, even with universal healthcare. Indirect costs, such as productivity losses and non‐medical expenses, are rarely included in economic evaluations, and little is known about how effectively financial aid programmes alleviate this burden. Childhood brain tumours
Megumi Lim +8 more
wiley +1 more source
Diversity, 2023 The success of plant reproduction is highly dependent on effective seed dispersal. This study aimed to evaluate the potential seed dispersal effectiveness of cattle for Malus sieversii. The impact of cattle on the dispersal quantity and dispersal quality
Shilin Bai +4 more
doaj +1 more source
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source
Human-Mediated Dispersal of Plantago asiatica Mucilaginous Seeds in Urban Environments
SeedsSeed dispersal by humans plays an important role in determining vegetation structure. The seeds of Asian plantain (Plantago asiatica L.) form adhesive mucilage upon hydration, facilitating their attachment to shoes and subsequent dispersal via ...
Sota Inomata, Yudai Kudo, Kohei Koyama
doaj +1 more source
Postglacial migration supplements climate in determining plant species ranges in Europe [PDF]
, 2011 The influence of dispersal limitation on species ranges remains controversial. Considering the dramatic impacts of the last glaciation in Europe, species might not have tracked climate changes through time and, as a consequence, their present-day ranges ...
Normand, Signe +5 more
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