Results 71 to 80 of about 106,461 (304)

Inverse relationship between species competitiveness and intraspecific trait variability may enable species coexistence in experimental seedling communities

Nature Communications
Theory suggests that intraspecific trait variability may promote species coexistence when competitively inferior species have higher intraspecific trait variability than their superior competitors.
Jing Yang, Xiya Wang, Carlos P. Carmona, Xihua Wang, Guochun Shen   +4 more
doaj   +1 more source

Species prefer to shifting niche positions rather than expanding niche breadth to adapt to the heterogeneous karst forests

Forest Ecosystems
The interspecific variations of plant functional traits can characterize the niche positions of species within communities, while the intraspecific variations can accurately display the species’ niche breadth.
Shiren Chen, Zeyu Yang, Yuhang Wu, Yong Li, Longchenxi Meng, Luyao Chen, Yingqun Chen, Xuerong Shao, Mingzhen Sui, Guangqi Zhang, Danmei Chen, Yuejun He, Lipeng Zang, Qingfu Liu   +13 more
doaj   +1 more source

Food Quality in Producer-Grazer Models: A Generalized Analysis

, 2010
Stoichiometric constraints play a role in the dynamics of natural populations, but are not explicitly considered in most mathematical models. Recent theoretical works suggest that these constraints can have a significant impact and should not be ...
Feudel, Ulrike, Gross, Thilo, Kooi, Bob W., Stiefs, Dirk, van Voorn, George A. K.   +4 more
core   +2 more sources

Description of the skull, braincase, and dentition of Moschognathus whaitsi (Dinocephalia, Tapinocephalia), and its palaeobiological and behavioral implications

The Anatomical Record, EarlyView.
Abstract A subadult Moschognathus whaitsi from the Eastern Cape Province, South Africa, was scanned using synchrotron radiation X‐ray computed tomography (SRXCT). Its subadult state allowed the cranial bones and teeth to be identified and individually reconstructed in 3D.
Tristen Lafferty, Luke A. Norton, Aliénor Duhamel, Julien Benoit   +3 more
wiley   +1 more source

Stage duration distributions and intraspecific competition: a review of continuous stage-structured models

Mathematical Biosciences and Engineering, 2022
<abstract><p>Stage structured models, by grouping individuals with similar demographic characteristics together, have proven useful in describing population dynamics. This manuscript starts from reviewing two widely used modeling frameworks that are in the form of integral equations and age-structured partial differential equations.
Lou, Y, Sun, B
openaire   +4 more sources

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

Plants
A community functional structure may respond to environmental changes such as nitrogen (N) enrichment by altering intraspecific and interspecific trait variations.
Jialuo Yu, Peili Shi, Ning Zong, Minghua Song, Yujue Miao, Xiaofang Huang, Xueying Chen, Huixin Hei   +7 more
doaj   +1 more source

Hatching asynchrony, survival, and the fitness of alternative adult morphs in \u3ci\u3eAmbystoma talpoideum\u3c/i\u3e [PDF]

, 2004
The mole salamander, Ambystoma talpoideum, exhibits both aquatic (gilled) and terrestrial (metamorphosed) adult morphologies. Previous studies have shown the existence of body-size advantages associated with the terrestrial morph in A.
Ryan, Travis J
core   +1 more source

Increasing the digital repository of DNA barcoding sequences of sand flies (Psychodidae: Phlebotominae) [PDF]

, 2019
Sand f ly identification is complex because it depends on the expertise of the taxonomist. The females show subtle morphological differences and the occurrence of the species complexes are usual in this taxon.
Almiron, Walter Ricardo, Laurito, Magdalena, Ontivero, Iliana Mayra   +2 more
core   +1 more source

The revision of baphetids from the Middle Pennsylvanian of the Czech Republic: Morphology, ontogeny, palaeoecology, and the reassessment of the phylogeny of Baphetoidea

The Anatomical Record, EarlyView.
Abstract The baphetoids represent a clade of the Carboniferous stem‐tetrapods (Middle Mississippian—Middle Pennsylvanian) with a characteristic extension of the orbits into antorbital vacuities, which formed keyhole‐shaped openings on the skull. The more derived baphetids were crocodile‐like piscivores frequently occurring in coal‐bearing lacustrine ...
Pavel Barták, Martin Ivanov, Boris Ekrt
wiley   +1 more source

Biomass-density data analysis: a comment on Cabaco et al. (2013) [PDF]

, 2015
Appropriate use of mathematics and statistics is fundamental for sound interpretations of ecological results and to prevent inaccurate conclusions. Throughout the article by Cabaco etal.
Arenas, Cabaço, Chu, Chu, Creed, Creed, Dowdy, Jackson, Jolliffe, Manly, Morris, Morris, Morris, Rincón, Sokal, Sousa, Steen, Turner, Underwood, Vieira, Vieira   +20 more
core   +1 more source