Results 131 to 140 of about 2,221,299 (300)

Pollen limitation as a main driver of fruiting dynamics in oak populations.

Ecology Letters, 2018
In many perennial wind-pollinated plants, the dynamics of seed production is commonly known to be highly fluctuating from year to year and synchronised among individuals within populations.
Eliane Schermer, M. Bel‐Venner, D. Fouchet, A. Siberchicot, V. Boulanger, Thomas Caignard, M. Thibaudon, G. Oliver, M. Nicolas, J. Gaillard, S. Delzon, S. Venner   +11 more
semanticscholar   +1 more source

Do Larger Pollinators Have Higher Pollination Efficiency for the Generalized Pollination Plant Hibiscus mutabilis?

Biology
To understand the reproductive strategies of the typically introduced plant Hibiscus mutabilis and to compare the pollination efficiency of its different pollinators, we observed, measured, and recorded the flowering dynamics, floral traits, and visiting
Xiaoqing Shi, Bin Zheng, Xiaoli Liu, Fangwen Li, Zhangshun Zhu, Qiumei Quan, Yunxiang Li   +6 more
doaj   +1 more source

Postcopulatory sexual selection [PDF]

, 2002
The female reproductive tract is where competition between the sperm of different males takes place, aided and abetted by the female herself. Intense postcopulatory sexual selection fosters inter-sexual conflict and drives rapid evolutionary change to ...
A Civetta, A Singson, A Singson, AB Carvalho, AJ Bateman, AK Chippindale, AK Chippindale, AP Møller, AP Møller, B Hellriegel, B Holland, B Kempenaers, BC Sheldon, BC Sheldon, BT Preston, C Darwin, CW LaMunyon, D Carré, D Childress, D Haig, D Hosken, D Pfaff, D Vacquier, D Yamamoto, DA Roff, DB Lank, DC Presgraves, DC Shakes, DJ Begun, DJ Hosken, DM Rand, DW Coltman, E Ottaviano, E Ruiz-Pesini, EC Metz, ED Ketterson, EH Nicholls, EJA Cunningham, FD Karim, FM Hunter, FM Hunter, G Arnqvist, G Arnqvist, GA Parker, GA Parker, GA Parker, GA Parker, GA Parker, GA Parker, H Montell, HDM Moore, IM Matthews, J Nance, JB Wolf, JDD Bishop, JHJ Van der Werf, JK Waage, JM Cheverud, JM Martin-Villa, JS Takahashi, JV Briskie, JV Briskie, K Uchida, KA Hughes, L Andersson, L Delph, L Keller, LD Hurst, LW Simmons, LW Simmons, M Andersson, M Edvardsson, M Lynch, M Ridley, MK Dahle, N Wilson, P David, P Jivoff, P Stockely, P Stockley, P Ward, P Ward, PA Cook, PS Chen, R Lande, R Thornhill, RD Catalano, RL Smith, RL Smith, RL Trivers, RR Baker, RR Snook, RR Snook, RR Warner, S Gavrilets, S Palumbi, S Pitnick, S Pitnick, S Pitnick, S Stearns, SA Frank, SM Shuster, SM Shuster, SW L' Hernault, T Chapman, T Chapman, T Chapman, T Pizzari, T Pizzari, T Prout, T Prout, T Tregenza, T Tregenza, TFC Mackay, TH Clutton-Brock, TM Panhuis, TR Birkhead, TR Birkhead, TR Birkhead, TR Birkhead, TR Birkhead, TR Birkhead, TR Halliday, UW Huck, W Swanson, WG Eberhard, WJ Swanson, WJ Swanson, WJ Swanson, WJ Swanson, WR Rice, WR Rice, WR Rice   +132 more
core   +1 more source

Is the pollen‐limited mistletoe Peraxilla tetrapetala (Loranthaceae) also seed limited?

Austral Ecology, 2007
Abstract  Seed production in the endemic New Zealand mistletoe Peraxilla tetrapetala (Loranthaceae) has been shown to be consistently pollen limited, but to date there has been no test of whether the species is also seed limited. If it is not seed limited, then pollen limitation may have no effect on population size.
DAVE KELLY, JENNY J. LADLEY, ALASTAIR W. ROBERTSON   +2 more
openaire   +1 more source

The tectonic influence on the last 1500-year infill history of a deep lake located on the North Anatolian Fault: Lake Sapanca (N-W Turkey) [PDF]

, 2010
Lake Sapanca on the North Anatolian Fault zone (NW Turkey) is a pull-apart basin at the junction between the İzmit-Sapanca fault segment, the Sakarya segment and the westernmost end of the Mudurnu Valley fault.
Costa, PJM, Leroy, SAG, Schwab, MJ
core  

The spread of non‐native species

Biological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock, Ali Serhan Tarkan, Irene Martín‐Forés, Stelios Katsanevakis, Ronaldo Sousa, Ismael Soto, Andy J. Green, Antonín Kouba, Teun Everts, Victoria Dominguez Almela, Nadège Belouard, Cang Hui, Jamie Bojko, Victor Deklerck, Margaux Boeraeve, Franz Essl, J. Robert Britton   +16 more
wiley   +1 more source

Organic farming and gene transfer from genetically modified crops [PDF]

, 1999
This is the final report of MAFF/Defra project OF0157. Genetically modified (GM) crops cannot be released into the environment and used as food, feed, medicines or industrial processing before they have passed through a rigorous and internationally ...
Dale, Philip J., Moyes, Catherine L.
core  

Early evolutionary history of the seed

Biological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source

Impact of fragmented habitats on reproductive success in dominant shrubs: natural selection on floral display and pollinator visitation

Frontiers in Plant Science
Flowering shrubs in fragmented habitats often experience pollen limitation, which can lead to strong natural selection on floral display and affect reproductive success.
Min Chen, Min Chen, Min Chen, Zheng-jiao-yi Wang, Zheng-jiao-yi Wang, Zheng-jiao-yi Wang, Xu-jun Ma, Xu-jun Ma, Xu-jun Ma, Xue-yong Zhao, Xue-yong Zhao   +10 more
doaj   +1 more source

Pollination of two species of Vellozia (Velloziaceae) from high-altitude quartzitic grasslands, Brazil Polinização de duas espécies de Vellozia (Velloziaceae) de campos quartzíticos de altitude, Brasil

Acta Botânica Brasílica, 2007
The pollinators and breeding system of two species of Vellozia (Velloziaceae) from high-altitude quartzitic grasslands in SE Brazil were studied. Vellozia leptopetala is shrubby and grows solely on rocky outcrops, V. epidendroides is herbaceous and grows
Claudia Maria Jacobi, Mário César Laboissiérè del Sarto   +1 more
doaj   +1 more source