Results 21 to 30 of about 2,448,084 (296)

Interspecies trophic niche differences and spatial–temporal adaptations found in Cultrinae fishes

Frontiers in Ecology and Evolution, 2023
It has been debated whether interspecies niche differences may follow niche conservatism, whether niches are becoming specialists, whether generalists and specialists are maintained in a balance, and how the realized niche may adapt to local or temporal ...
Tingyue Yang, Tingyue Yang, Shufan Yang, Shufan Yang, Dan Yu, Chunling Wang, Kunyu Shang, Huanzhang Liu   +7 more
doaj   +1 more source

The niche construction perspective : a critical appraisal [PDF]

, 2014
For financial support, the authors thank Biotechnology and Biological Sciences Research Council, The Economic and Social Research Council, The Natural Environment Research Council, the Leverhulme Trust, the European Research Council, and the Royal ...
Laland, Kevin N., Scott-Phillips, Thomas C., Dickins, T.E., Shuker, D.M., West, S.A., Dickins, Thomas E., West, Stuart A., Scott-Phillips, T.C., Laland, K.N., Shuker, David M., Shuker, D., West, S., Dickins, T., Laland, K., Scott-Phillips, T.   +14 more
core   +1 more source

Evidence for a single-niche model of positive selection. [PDF]

Proceedings of the National Academy of Sciences, 1994
Thymocyte maturation depends on interactions with thymic stromal elements expressing major histocompatibility complex (MHC) molecules. Mutant mouse strains lacking MHC class I (beta 2-microglobulin-null) or class II (A beta-null) expression fail to generate normal CD8 or CD4 T-cell populations and provide model systems for reconstitution experiments ...
Merkenschlager, Matthias, Benoist, Christophe, Mathis, Diane   +2 more
openaire   +3 more sources

Trophic ecology of Acestrorhynchus falcirostris Cuvier, 1819 in island lakes on the lower stretch of the Solimões River, Amazon Basin

Brazilian Journal of Biology, 2022
The aim objective of this study was to determine the trophic ecology of juvenile and adult Acestrorhynchus falcirostris during the rising and flood (high-water) period in six island lakes adjacent to the Solimões River.
C. Lubich, J. Aguiar-Santos, F. Corrêa, C. E. C. Freitas, F. K. Siqueira-Souza   +4 more
doaj   +1 more source

Determining trophic niche width: a novel approach using stable isotope analysis [PDF]

, 2004
1. Although conceptually robust, it has proven difficult to find practical measures of niche width that are simple to obtain, yet provide an adequate descriptor of the ecological position of the population examined. 2.
Bearhop, S., Bearhop, Stuart, Fuller, R.A., Waldron, S., Adams, C.E., Macleod, H., Fuller, Richard A., Adams, Colin E., Waldron, Susan   +8 more
core   +1 more source

An introduction to niche construction theory [PDF]

, 2016
Niche construction refers to the modification of selective environments by organisms. Theoretical and empirical studies of niche construction are increasing in importance as foci in evolutionary ecology.
Matthews, Blake, Laland, Kevin Neville, Blake Matthews, Marcus W. Feldman, Kevin Laland, Feldman, Marcus W.   +5 more
core   +1 more source

Trophic Niches, Trophic Positions, and Niche Overlaps between Non-Native and Native Fish Species in a Subalpine Lake [PDF]

Water, 2020
In the last century, Italian freshwater ecosystems have been invaded by several non-native fish species. In the subalpine Lake Mergozzo (northern Italy), several recently introduced non-native species dramatically expanded their populations. We used carbon and nitrogen stable isotopes to describe the isotopic niches and trophic positions of native and ...
Cicala, D., Polgar, G., Mor, J.R., Piscia, R., Zaupa, S., Brignone S., Volta, P.   +12 more
openaire   +7 more sources

Models of cultural niche construction with selection and assortative mating [PDF]

, 2012
This research was supported in part by National Institutes of Health grant GM28016 and a Biotechnology and Biological Sciences Research Council studentship to LF. The funders had no role in study design, data collection and analysis, decision to publish,
Fogarty, Laurel, Creanza Nicole, Marcus W. Feldman (143724), Laurel Fogarty (143721), Fogarty Laurel, Feldman Marcus W., Laurel Fogarty, Nicole Creanza (143720), Feldman, Marcus W., Creanza, Nicole, Marcus W Feldman, Nicole Creanza   +11 more
core   +2 more sources

Stage-specific control of niche positioning and integrity in the Drosophila testis [PDF]

Mechanisms of Development, 2015
A fundamental question is how complex structures are maintained after their initial specification. Stem cells reside in a specialized microenvironment, called niche, which provides essential signals controlling stem cell behavior. We addressed this question by studying the Drosophila male stem cell niche, called the hub.
Schardt, L., Ander, J.-J., Lohmann, I., Papagiannouli, F   +3 more
openaire   +2 more sources

Genes, culture and agriculture : an example of human niche construction [PDF]

, 2012
K. N. Laland was supported by an ERC Advanced Grant (EVOCULTURE).Theory and empirical data from a variety of disciplines strongly imply that recent human history involves extensive gene-culture coevolution, much of it as a direct result of human ...
Laland, Kevin Neville, Kendal, J.R., Laland, K. N., Michael J. O’Brien, O'Brien, Michael, O\u27Brien, Michael J., Kevin N. Laland   +6 more
core   +1 more source