Results 41 to 50 of about 133,710 (277)

Inducible overexpression of porcine homeobox A10 in the endometrium of transgenic mice

open access: yesJournal of Integrative Agriculture, 2016
Homeobox A10 (HOXA10) is a well-known transcription factor that plays an important role in directing endometrial differentiation and establishing the conditions required for implantation.
Rui-yi LIN   +6 more
doaj   +1 more source

Do grandparents compete with or support their grandchildren? In Guatemala, paternal grandmothers may compete, and maternal grandmothers may cooperate [PDF]

open access: yesRoyal Society Open Science, 2016
Previous research has found that the presence of grandparents, particularly grandmothers, is often positively associated with child survival. Little research has explored the potential mechanisms driving these associations.
Paula Sheppard, Rebecca Sear
doaj   +1 more source

The Mating Pattern of Captive Naked Mole-Rats Is Best Described by a Monogamy Model

open access: yesFrontiers in Ecology and Evolution, 2022
Naked mole-rats form colonies with a single reproductively active female surrounded by subordinate workers. Workers perform offspring care, construction and defense of the burrow system, and food supply.
Karol Szafranski   +9 more
doaj   +1 more source

Efficiency of selection for body weight in a cooperative village breeding program of Menz sheep under smallholder farming system

open access: yesAnimal, 2014
We evaluated the efficiency of selection for body weight in a cooperative village breeding program for Menz sheep of Ethiopia under smallholder farming system.
S. Gizaw   +7 more
doaj   +1 more source

Relationships Between Habitat and Snag Characteristics and the Reproductive Success of the Brown-headed Nuthatch (Sitta pusilla) in Eastern Texas. [PDF]

open access: yes, 2004
Habitat use and reproductive success of the Brown-headed Nuthatch (Sitta pusilla Latham) were studied in East Texas during the 2001-2002 breeding seasons. We compared nest cavity selection at used and randomly selected non-used areas.
Burt, Brent   +3 more
core   +2 more sources

Infrequent Cooperative Breeding in a Short-Lived Migratory Songbird, the Wilson’s Warbler

open access: yesBirds
Cooperative breeding, or helping behavior, has long been recognized in birds. An ignored dichotomy, however, separates the helping found in many individuals of some long-lived, sedentary species from the helping occasionally found in the territories of ...
William Gilbert
doaj   +1 more source

Breeding ecology of two sympatric laughingthrushes (Trochalopteron milnei and Garrulax berthemyi) in southwestern China

open access: yesAvian Research, 2022
Here we documented up-to-date information on breeding ecology of Buffy Laughingthrush (Garrulax berthemyi), an endemic species of China, and a sympatric coordinal Red-tailed Laughingthrush (Trochalopteron milnei), in southwestern China.
Canchao Yang   +4 more
doaj   +1 more source

Analysis of Seed Potato Systems in Ethiopia [PDF]

open access: yes, 2010
This study aimed to analyze the seed potato systems in Ethiopia, identify constraints and prioritize improvement options, combining desk research, rapid appraisal and formal surveys, expert elicitation, field observations and local knowledge. In Ethiopia,
Hirpa, A.   +6 more
core   +1 more source

Agromorphological Characterization and Variability Among Maize Hybrids in the Mid-Hills of Far-West Nepal

open access: yesScientifica
The experiment was conducted using an alpha lattice design with two replications for each genotype, comprising 20 maize hybrids obtained from CIMMYT and NMRP, including two check varieties.
Ram Chandra Bhatta   +4 more
doaj   +1 more source

Compensatory Breeding in Years Following Drought in a Desert-Dwelling Cooperative Breeder

open access: yesFrontiers in Ecology and Evolution, 2020
Variation in weather patterns can influence reproductive effort and success not only within but also between breeding seasons. Where environmental conditions can be highly variable between years, the weather, and particularly extreme weather events such ...
Amanda R. Bourne   +5 more
doaj   +1 more source

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