Results 51 to 60 of about 134,193 (306)

The development of the Silurian trilobite Aulacopleura koninckii reconstructed by applying inferred growth and segmentation dynamics: A case study in paleo-evo-devo [PDF]

open access: yes, 2017
Fossilized growth series provide rare glimpses into the development of ancient organisms, illustrating descriptively how size and shape changed through ontogeny.
Fusco, Giuseppe   +3 more
core   +2 more sources

A leaf phenomics approach for estimating belowground traits in North American licorice

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Selective breeding over thousands of years has prioritized aboveground yield, with little regard for changes belowground. Roots underpin plant growth and resilience, but our knowledge of these critical structures lags behind that of aboveground structures.
Zachary N. Harris   +5 more
wiley   +1 more source

Identifying environmental correlates of intraspecific genetic variation [PDF]

open access: yesHeredity, 2016
Genetic variation is critical to the persistence of populations and their capacity to adapt to environmental change. The distribution of genetic variation across a species' range can reveal critical information that is not necessarily represented in species occurrence or abundance patterns. We identified environmental factors associated with the amount
K A, Harrisson   +8 more
openaire   +2 more sources

Climate and seed mass drive intraspecific variation in seed longevity in storage

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Conservation seed banks are essential for ex situ plant conservation, but stored seeds slowly deteriorate and lose viability. Seed longevity in storage is determined by the initial seed viability and the rate of seed viability loss. The rate of seed viability loss in storage varies between species and possibly between populations or ...
Lea Klepka   +2 more
wiley   +1 more source

The morphology of the oval window in Paranthropus robustus compared to humans and other modern primates

open access: yesThe Anatomical Record, EarlyView.
Abstract The oval window (OW) is an opening connecting the inner and middle ear. Its area has been shown to consistently scale with body mass (BM) in primates, and has been used alongside semi‐circular canal (SCC) size to differentiate Homo sapiens and fossil hominins, including Paranthropus robustus.
Ruy Fernandez, José Braga
wiley   +1 more source

Responses of Intraspecific and Interspecific Trait Variations to Nitrogen Addition in a Tibetan Alpine Meadow

open access: yesPlants
A community functional structure may respond to environmental changes such as nitrogen (N) enrichment by altering intraspecific and interspecific trait variations.
Jialuo Yu   +7 more
doaj   +1 more source

Variation in δ13C and δ15N within and among plant species in the alpine tundra

open access: yesArctic, Antarctic, and Alpine Research, 2021
Ratios of carbon (C) and nitrogen (N) stable isotopes in plants are important indicators of intrinsic water use efficiency and N acquisition strategies.
Marko J. Spasojevic, Sören Weber
doaj   +1 more source

Rescuing intraspecific variation in human‐impacted environments

open access: yesJournal of Applied Ecology, 2020
Abstract Anthropogenic activities influence ongoing selective regimes leading to changes in phenotypic variation of plants and animals. The reduction of phenotypic variation may decrease populations' ability to cope with environmental changes.
Carolina da Silva Carvalho   +2 more
openaire   +2 more sources

Tooth row allometry in domestic rabbits and nondomestic lagomorphs: Evidence for a decoupling of body and tooth row size changes in evolutionary time

open access: yesThe Anatomical Record, EarlyView.
Domestic rabbits of different body sizes differ disproportionately in the length of their tooth row or the length of their diastema. Abstract In various domestic mammals, smaller breeds tend to have proportionally larger teeth, whereas this is not a universal trend across mammals.
Ursina L. Fasciati   +3 more
wiley   +1 more source

The Origin, Succession, and Predicted Metabolism of Bacterial Communities Associated with Leaf Decomposition. [PDF]

open access: yes, 2019
Intraspecific variation in plant nutrient and defensive traits can regulate ecosystem-level processes, such as decomposition and transformation of plant carbon and nutrients.
Gilbert, Jack A   +2 more
core   +1 more source

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