Results 121 to 130 of about 6,020,625 (248)

Complexity promotes stability in mutualistic networks through weaker mutualistic dependencies: Insights from Generalized Modelling

open access: yesJournal of Animal Ecology, EarlyView.
We show that complexity, but not nestedness or modularity, increase dynamical stability of mutualistic networks, mainly through a weakening in mutualistic dependencies with complexity. Abstract Mutualistic networks provide essential contributions to long‐term ecosystem functioning and food security, but Anthropocene stressors continue to alter their ...
Timo Metz   +3 more
wiley   +1 more source

Anatomical study of nectar gland development and changes in sugar content in Trifolium ambiguum Bieb.

open access: yesXibei zhiwu xuebao
[Objective] Trifolium ambiguum Bieb. is an excellent nectar source plant, and understanding the morphological characteristics, tissue structure, and development are critical for proper utilization of T . ambiguum resources. [Methods] Nectar glands of T
TI Zhonghui   +4 more
doaj   +1 more source

Nectar sugar production in alfalfa fields treated with several herbicides

open access: yes, 1995
Field studies were conducted at three sites in northeastern Saskatchewan to determine the effects of several herbicides applied in late fall or early spring on nectar sugar production in alfalfa (Medicago sativa L.) grown for seed.
J. Waddington   +3 more
core   +1 more source

Niche occupancy of Jamaican bat caves: Diversity increases isotopic niche packing

open access: yesJournal of Animal Ecology, EarlyView.
Tropical bat caves are home to hundreds of thousands of bats of multiple species. In Jamaica, we found that isotopic niche packing is the likely mechanism of coexistence at more diverse sites. Abstract There are over 1000 documented caves across Jamaica, many of them used by diverse communities of bats.
Phillip J. Oelbaum   +6 more
wiley   +1 more source

Patterns of nectar production and composition, and morphology of floral nectaries in Helicteres guazumifolia and Helicteres baruensis (Sterculiaceae): two sympatric species from the Costa Rican tropical dry forest

open access: yesRevista de Biología Tropical, 2009
Helicteres guazumifolia Kunth and Helicteres baruensis Jacq. (Sterculiaceae) are two sympatric species of shrubs common along the North Western tropical dry forest of Costa Rica. i recorded their nectar production within a 24 hour cycle.
Loretta Goldberg
doaj  

Offspring performance does not explain oviposition preference in the leafminer Stigmella sorbi (Lepidoptera: Nepticulidae): a tri‐trophic perspective

open access: yesInsect Science, EarlyView.
We studied oviposition site selection in a leaf‐mining moth (Stigmella sorbi) on rowan trees (Sorbus aucuparia) in northwestern Russia, assessing larval performance across different shoot types, leaf positions, and leaflets. Larval survival was highest on long vegetative shoots, yet females showed no preference for these optimal sites.
Mikhail V. Kozlov, Vitali Zverev
wiley   +1 more source

Effects of cultural practices on soybean nectar production [PDF]

open access: yes, 2018
Experiments were conducted to determine the effects of cultural practices such as irrigation, planting date, and maturity group on soybean nectar production.
Smith, Tyler Miles
core  

Brood parasitism reduces but does not prevent Bombus terrestris reproductive success

open access: yesInsect Science, EarlyView.
Graphical depiction of the colony splitting process. Throughout figures in this paper, results pertaining to host success are represented in blue, and cuckoo success is represented in red. Abstract Cuckoo bumblebees are obligate brood parasites that must invade a colony of their host bumblebee species in order to reproduce.
Sofia Dartnell, Lynn V. Dicks
wiley   +1 more source

Characterization of the dynamic microbiome evolution across thrips species

open access: yesInsect Science, EarlyView.
Comprehensive survey of the microbiome in thrips. The dominant bacterial genera found in thrips include intracellular ones, such as Wolbachia and Spiroplasma, and extracellular ones, including Serratia, Pantoea, and Acinetobacter. We isolated and sequenced high‐quality genomes of two dominant symbionts, Pantoea dispersa and Serratia marcescens.
Xiaodi Hu   +8 more
wiley   +1 more source

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