Results 61 to 70 of about 33,384 (228)

The effect of sheltered load on reproduction in Solanum carolinense, a species with variable self-incompatibility [PDF]

, 2009
In previous studies, we have investigated the strength of self-incompatibility (SI) in Solanum carolinense, a highly successful weed with a fully functional SI system that inhabits early successional and other disturbed habitats.
Keser, L.H., Mena-Ali, J.I., Stephenson, A.G.   +2 more
core   +2 more sources

Giraffe translocation population viability analysis [PDF]

, 2020
Most populations of giraffes have declined in recent decades, leading to the recent IUCN decision to upgrade the species to Vulnerable status, and some subspecies to Endangered.
Carter, Kerryn D., Deacon, Francois, Fienieg, Elmar, Lee, Derek E., Muller, Zoe, Scheijen, Ciska P. J., Strauss, Megan, van Oosterhout, Cock   +7 more
core   +1 more source

Multiple life-stage inbreeding depression impacts demography and extinction risk in an extinct-in-the-wild species

Scientific Reports, 2021
Inbreeding can depress individuals’ fitness traits and reduce population viability. However, studies that directly translate inbreeding depression on fitness traits into consequences for population viability, and further, into consequences for management
A. E. Trask, G. M. Ferrie, J. Wang, S. Newland, S. Canessa, A. Moehrenschlager, M. Laut, L. Barnhart Duenas, J. G. Ewen   +8 more
doaj   +1 more source

The existence of species rests on a metastable equilibrium between inbreeding and outbreeding [PDF]

, 2011
Background: Speciation corresponds to the progressive establishment of reproductive barriers between groups of individuals derived from an ancestral stock.
Etienne Joly
core   +2 more sources

Measuring the effect of environmental stress on inbreeding depression alone obscures the relative importance of inbreeding–stress interactions on overall fitness in Callosobruchus maculatus

Evolutionary Applications, 2020
Environmental stress can have a profound effect on inbreeding depression. Quantifying this effect is of particular importance in threatened populations, which are often simultaneously subject to both inbreeding and environmental stress.
Amy L. Springer, Frank J. Messina, Zachariah Gompert   +2 more
doaj   +1 more source

A general stochastic model for sporophytic self-incompatibility [PDF]

, 2011
Disentangling the processes leading populations to extinction is a major topic in ecology and conservation biology. The difficulty to find a mate in many species is one of these processes.
Billiard, Sylvain, Tran, Viet Chi
core   +6 more sources

The costs of extra‐pair behaviours in birds

Biological Reviews, EarlyView.
ABSTRACT Extra‐pair behaviours – reproductive behaviours, including those related to copulation and paternity of offspring, amongst animals outside of a social pair bond – have long intrigued behavioural ecologists, particularly from the female animal's perspective.
Jørgen S. Søraker, Jamie Dunning
wiley   +1 more source

Perspectives and behaviors surrounding planting practices in North America inform genetic conservation realities for American ginseng (Panax quinquefolius)

PLANTS, PEOPLE, PLANET, EarlyView.
American ginseng is a shade‐obligate, North American medicinal plant that is widely traded and used internationally. To meet global demand, ginseng is cultivated in forest farms in the Appalachian region of the USA and field‐based artificial shade farms in two regions: Ontario, Canada and Wisconsin, USA. We conducted social research leveraging in‐depth
Rachel E. Palkovitz, Mary K. Shenk, Eric P. Burkhart   +2 more
wiley   +1 more source

Beyond abundance: the impact of sampling design on effective population size estimates in capercaillie

Wildlife Biology, EarlyView.
Effective population size (Ne) is a useful parameter to evaluate the long‐term viability of populations. While obtaining enough field data from wild populations to estimate Ne directly is challenging, molecular techniques applied to non‐invasive samples provide an appealing alternative.
María‐José Bañuelos, Mario Quevedo
wiley   +1 more source

Inbreeding depression in Solanum carolinense (Solanaceae), a species with a plastic self-incompatibility response

BMC Evolutionary Biology, 2008
Background Solanum carolinense (horsenettle) is a highly successful weed with a gametophytic self-incompatibility (SI) system. Previous studies reveal that the strength of SI in S. carolinense is a plastic trait, associated with particular S-alleles. The
Keser Lidewij H, Mena-Ali Jorge I, Stephenson Andrew G   +2 more
doaj   +1 more source