Results 71 to 80 of about 61,462 (287)

Burying Beetles (Coleoptera: Silphidae) of the Apostle Islands, Wisconsin: Species Diversity, Population Density and Body Size [PDF]

open access: yes, 2018
Over 2400 burying beetles, representing six species (Nicrophorus defodiens, N. sayi, N orbicollis, N. tomentosus, N vespilloides, and N. pustulatus), were trapped from 27 June to 4 August, 1996 at nine study sites (3 small islands, 3 large islands, and 3
Thomas, Shelly, Trumbo, Stephen T
core   +2 more sources

Intraspecific competition reduces niche width in experimental populations [PDF]

open access: yesEcology and Evolution, 2014
AbstractIntraspecific competition is believed to drive niche expansion, because otherwise suboptimal resources can provide a refuge from competition for preferred resources. Competitive niche expansion is well supported by empirical observations, experiments, and theory, and is often invoked to explain phenotypic diversification within populations ...
Parent, Christine E   +2 more
openaire   +3 more sources

Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract Although ceratopsid dinosaurs possess a characteristically hypertrophied narial region, soft‐tissue anatomy associated with such a skeletal structure and their biological significance remain poorly understood. The present study provides the first comprehensive hypothesis on the soft‐tissue anatomy in the ceratopsid rostrum based on the Extant ...
Seishiro Tada   +5 more
wiley   +1 more source

Physiology of Weeds in Intraspecific Competition

open access: yesJournal of Agricultural Science, 2018
When plants are subjected to competition, their physiological behavior changes. To understand the developmental physiology of weeds will subsidize the development of cropping systems which favor the crops plants in detriment of weeds. The objective of this work was to evaluate the physiological behavior of different weed species, growing under ...
Caroline Hernke Thiel   +9 more
openaire   +2 more sources

A second species of non‐crocodyliform crocodylomorph from the Late Triassic fissure deposits of southwestern UK: Implications for locomotory ecological diversity in Saltoposuchidae

open access: yesThe Anatomical Record, EarlyView.
Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham   +4 more
wiley   +1 more source

Dynamics of an unstirred chemostat model with Beddington–DeAngelis functional response

open access: yesFrontiers in Physics, 2023
This paper deals with an unstirred competitive chemostat model with the Beddington–DeAngelis functional response. With the help of the linear eigenvalue theory and the monotone dynamical system theory, we establish a relatively clear dynamic ...
Wang Zhang, Hua Nie, Zhiguo Wang
doaj   +1 more source

Inter‐ and intraspecific variation in theropod dinosaur dental microwear and its palaeoecological implications

open access: yesThe Anatomical Record, EarlyView.
Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison   +9 more
wiley   +1 more source

Intraspecific competition in row spacings in soybean [PDF]

open access: yesEmirates Journal of Food and Agriculture
The aim of this study is to assess the impact of various row spacings on the morphology, components of grain yield, and overall grain yield of soybean. The experiments were conducted over two planting seasons (2014/2015 and 2015/2016) using two planting ...
Vinícius dos Santos Cunha   +6 more
doaj   +3 more sources

Quantitative muscle architecture in large carnivorous marsupials (Marsupialia: Dasyuridae) and links to substrate use and prey processing

open access: yesThe Anatomical Record, EarlyView.
Abstract The Dasyurid species Sarcophilus harrisii, Dasyurus maculatus, and Dasyurus viverrinus, occupying diverse ecological niches and forming a guild structure in Tasmania, provide a basis for examining the roles of various forelimb muscle groups in prey capture and locomotion.
Riya G. Bidaye   +4 more
wiley   +1 more source

Chemical communication in free-ranging gray brocket deer (Mazama gouazoubira)

open access: yesBiotemas, 2017
Chemical communication is intensely used by deer, especially scent-marking behaviors, with territory marking mainly made by males. This work presents several video recordings of at least two gray brockets (male and female) chemically communicating via ...
Juliano André Bogoni   +3 more
doaj   +1 more source

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