Results 61 to 70 of about 14,583 (180)

Gonadal Development in Larvae of the Paedomorphic Ambystoma mexicanum (Amphibia: Urodela)

Journal of Morphology, Volume 287, Issue 3, March 2026.
This research analyzes the gonads of Ambystoma mexicanum larvae of both sexes, revealing significant changes such as the onset of vitellogenesis in females at 9 months of age and oocytes with signs of maturity at 12 months. In males, gonadal maturity occurs earlier, with a notable cephalocaudal and lateromedial testicular regionalization, and ...
Jessica Lucía Sánchez‐Ortiz, Eva Mendoza‐Cruz, Maricela Villagrán‐SantaCruz   +2 more
wiley   +1 more source

Human refuse as a major ecological factor in medieval urban vertebrate communities [PDF]

, 2000
Organic refuse, such as food and butchery waste, was commonly deposited in dumps andpits in medieval towns throughout northern Europe. These deposits of refuse attracted and supponed a diverse communily of scavengers and their predators.
O'Connor, T.P.
core  

Resoiling on anthropogenically disturbed surfaces in the southern taiga subzone [PDF]

, 2011
Based on investigating dated anthropogenic structures, we present the results derived from studying the development features of soddy podzolic soils over the course of the first 600 years from the zero time of soil formation.
Goleusov, P. V., Lisetskii, F. N.
core   +1 more source

Soil carbon, nitrogen, and biological activity as affected by land use and grassland management across North Carolina

Soil Science Society of America Journal, Volume 90, Issue 2, March/April 2026.
Abstract Undisturbed land uses have the potential to enhance soil organic matter, but how and to what extent this occurs on private farms remains relatively unexplored. A cross‐sectional study of perennial grasslands and farm woodlots was undertaken across North Carolina to investigate stocks of soil organic C, total soil N, and soil‐test biological ...
Alan J. Franzluebbers
wiley   +1 more source

Mineralogia, micromorfologia e gênese de solos planossólicos do Sertão do Araripe, estado de Pernambuco Mineralogy, micromorphology and genesis of soils with stagnic properties from Sertão of Araripe, Pernambuco State, Brazil

Revista Brasileira de Ciência do Solo, 2004
Neste trabalho, objetivou-se realizar a caracterização mineralógica e micromorfológica de solos planossólicos do Sertão do Araripe, estado de Pernambuco, visando proporcionar melhor entendimento de suas propriedades e dos processos envolvidos em sua ...
L. B. Oliveira, M. R. Ribeiro, F. B. Ferraz, M. G. V. X. Ferreira, A. R. Mermut   +4 more
doaj   +1 more source

Floodplain environmental change during the younger dryas and holocene: Evidence from the lower kennet valley, south central England [PDF]

, 2006
Many lowland rivers across northwest Europe exhibit broadly similar behavioural responses to glacial-interglacial transitions and landscape development. Difficulties exist in assessing these, largely because the evidence from many rivers remains limited
Collins, PEF, Fenwick, IM, Keith-Lucas, DM, Worsley, P   +3 more
core  

Zinc Redistribution in a Soil Developed from Limestone During Pedogenesis [PDF]

, 2009
International audienceThe long-term redistribution of Zn in a naturally Zn-enriched soil during pedogenesis was quantified based on mass balance calculations.
Baize, Denis, Bruand, Ary, Cornu, Sophie, Drouin, Sylvain, Hardy, Michel, Josière, Olivier, Juillot, F., Laveuf, C.   +7 more
core   +3 more sources

Defining soil: Proposals of zero‐states, active layer, and págousols (from ice parent materials) to fundamentally expand soil science

Soil Science Society of America Journal, Volume 90, Issue 2, March/April 2026.
Abstract Recent publications in soil science have reopened discussions over how soil and soil science should be defined, reflecting productive tension between historical constructs and the evolving frontiers of the discipline. While new definitions offered over the past decade provide valuable perspectives, they inevitably rely on past conventions and ...
Aaron Lee M. Daigh
wiley   +1 more source

Genesis of Soils Formed from Mafic Igneous Rock in the Atlantic Forest Environment

Revista Brasileira de Ciência do Solo, 2016
Different parent materials participate in the formation of soils in the hilly landscape of “Mar de Morros” in the Atlantic Forest environment. Those derived from mafic igneous rock (gabbro) frequently show erosion problems because of land use, which is ...
Adailde do Carmo Santos, Marcos Gervasio Pereira, Lúcia Helena Cunha dos Anjos, Thiago Andrade Bernini, Miguel Cooper   +4 more
doaj   +1 more source

Microtopography controls organic and inorganic carbon stocks in Vertisols: Insights from a climosequence on the Texas coastal plain

Soil Science Society of America Journal, Volume 90, Issue 2, March/April 2026.
Abstract Complex interactions between ecological and environmental factors govern soil organic carbon (SOC) and soil inorganic carbon (SIC) stocks across landscapes. In gilgai‐bearing Vertisols, submeter differences in water availability result in micro‐spatial variability in soil properties.
Sarah J. Kogler, Lee C. Nordt
wiley   +1 more source