Results 81 to 90 of about 2,327 (226)
Extrapolating demography with climate, proximity and phylogeny: approach with caution [PDF]
Plant population responses are key to understanding the effects of threats such as climate change and invasions. However, we lack demographic data for most species, and the data we have are often geographically aggregated.
Buckley, Y.M. +3 more
core +4 more sources
The evolutionary history of Coleoptera (Insecta) in the late Palaeozoic and the Mesozoic
Structural transformations of the elytra and abdomen played a major role in the early beetle evolution in the Permian. Polyphaga appear late in the fossil record, with only a few fossils of Elateriformia in the Late Triassic. Several factors were involved in the enormous diversification of beetles in the Cretaceous but evolutionary interactions with ...
Rolf G. Beutel +6 more
wiley +1 more source
Parallel evolution of angiosperm‐like venation in Peltaspermales: a reinvestigation of Furcula
Summary Leaf venation is a pivotal trait in the success of vascular plants. Whereas gymnosperms have single or sparsely branched parallel veins, angiosperms developed a hierarchical structure of veins that form a complex reticulum. Its physiological consequences are considered to have enabled angiosperms to dominate terrestrial ecosystems in the Late ...
Mario Coiro +5 more
wiley +1 more source
Endemi su organizmi koji žive na određenom ograničenom geografskom području i nigdje drugdje na svijetu. Prema starosti razlikujemo reliktne endeme (paleoendeme) i neoendeme.
Bošković, Mirjam
core
Patterns of variation in fleshy diaspore size and abundance from Late Triassic–Oligocene
ABSTRACT Vertebrate‐mediated seed dispersal is a common attribute of many living plants, and variation in the size and abundance of fleshy diaspores is influenced by regional climate and by the nature of vertebrate seed dispersers among present‐day floras.
Duhita Naware, Roger Benson
wiley +1 more source
Special Libraries, February 1957 [PDF]
Volume 48, Issue 2https://scholarworks.sjsu.edu/sla_sl_1957/1001/thumbnail ...
Special Libraries Association
core +1 more source
Cycads represent an example of the success of evolutionary stasis. Despite its conservative nature, the cycad genus Dioon has been able to diversify due to phylogenetic, stochastic, and environmental factors associated with the biogeography of Mexico. Abstract Cycads represent an example of the success of evolutionary stasis. Despite their early origin,
José Said Gutiérrez‐Ortega +8 more
wiley +1 more source
Mongolitria: A new Early Cretaceous three‐valved seed from Northeast Asia
Abstract Premise Fossil seeds recovered from the Early Cretaceous of Mongolia and Inner Mongolia, China, are described and assigned to Mongolitria gen. nov., a new genus of gymnosperm seed. Methods Abundant lignitized seeds along with compression specimens isolated from the matrix were studied using a combination of scanning electron microscopy ...
Maya A. Bickner +5 more
wiley +1 more source
Cycas circinalis is Red Listed Endangered species. It is a tropical dry deciduous dioecious shrub confined to the Western Ghats and its adjacent regions. It reproduces asexually and sexually.
A.J.S. Raju, N.G. Rao
doaj +1 more source
On the taxonomic resolution of pollen and spore records of Earth’s vegetation [PDF]
Premise of research. Pollen and spores (sporomorphs) are a valuable record of plant life and have provided information on subjects ranging from the nature and timing of evolutionary events to the relationship between vegetation and climate.
Mander, Luke, Punyasena, Surangi W.
core +1 more source

