Arboreal twig-nesting ants form dominance hierarchies over nesting resources. [PDF]
Interspecific dominance hierarchies have been widely reported across animal systems. High-ranking species are expected to monopolize more resources than low-ranking species via resource monopolization. In some ant species, dominance hierarchies have been
Philpott, Stacy M, Yitbarek, Senay
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Variation in root morphology of epiphytic orchids along small-scale and large-scale moisture gradients [PDF]
Root morphology is expected to respond to environmental conditions. Two earlier studies reported predictable changes in the structure of the velamen radicum (common in monocotyledons) along rainfall gradients, which was expected from its assumed role in ...
Helena J. R. Einzmann +2 more
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Grasses and the resource availability hypothesis: the importance of silica-based defences [PDF]
The resource availability hypothesis (RAH) predicts that allocation of resources to anti-herbivore defences differs between species according to their growth rate.
Ennos, Roland A. +2 more
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Wing Shape in the Taxonomic Identification of Genera and Species of the Subfamily Dolichopodinae (Dolichopodidae, Diptera) [PDF]
Characters of the wing morphology have significant importance in the systematics and taxonomy of the family Dolichopodidae, but there are only a few studies concerning the variation in wing shape of dolichopodid flies.
Mariya A. Chursina
doaj +1 more source
Phytoplankton niche generation by interspecific stoichiometric variation [PDF]
For marine biogeochemical models used in simulations of climate change scenarios, the ability to account for adaptability of marine ecosystems to environmental change becomes a concern. The potential for adaptation is expected to be larger for a diverse ecosystem compared to a monoculture of a single type of (model) algae, such as typically included in
Göthlich, Lena, Oschlies, Andreas
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In this study, we use geometric morphometry to discriminate thrips of the species Gynaikothrips uzeli (Zimmerman) and Gynaikothrips ficorum (Marchal) and also to detect sexual dimorphism in these species. Two hundred individuals, one hundred females and
Priscila Paredes dos Santos +2 more
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A unifying explanation for variation in ozone sensitivity among woody plants [PDF]
Tropospheric ozone is considered the most detrimental air pollutant for vegetation at the global scale, with negative consequences for both provisioning and climate regulating ecosystem services. In spite of recent developments in ozone exposure metrics,
Ainsworth +28 more
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Lujiatun Psittacosaurids: understanding individual and taphonomic variation using 3D geometric morphometrics. [PDF]
Psittacosaurus is one of the most abundant and speciose genera in the Dinosauria, with fifteen named species. The genus is geographically and temporally widespread with large sample sizes of several of the nominal species allowing detailed analysis of ...
Brandon P Hedrick, Peter Dodson
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On Intraspecific and Interspecific Variation in Teleost Scleral Ossification [PDF]
ABSTRACTScleral ossicles are bony elements found along the eyes of many fishes, amphibians, and reptiles. These bones provide a superficial layer of support to the eye and may facilitate visual acuity. Previous research has shown that scleral ossicle diversity is generally limited among teleosts, but that scleral ossicles have been lost numerous times ...
Gabriel H. Kindl, Kelly E. O'Quin
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Interspecific somatic hybrids between Solanum bulbocastanum and S. tuberosum and their haploidization for potato breeding. [PDF]
Protoplast fusion between incongruent Solanum bulbocastanum and S. tuberosum haploids was accomplished to produce hybrids combining elite traits from both parents. We identified 11 somatic hybrids out of 42 regenerants analyzed through ISSR markers. Some
AVERSANO, RICCARDO +7 more
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