Results 81 to 90 of about 1,901 (205)
The impacts of biological invasions
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock +42 more
wiley +1 more source
Performance of hymenopteran insects as pollinators of pumpkin in Meghalaya [PDF]
Pumpkin is a major cultivated crop particularly in north eastern states of India that depends on insects for the pollination, as the pollens of these plants are large sized and sticky.
Pande, Rachna, Verma, V. K.
core +2 more sources
Substrate Preference of Black Soldier Fly Larvae Is Influenced by Rearing History
BSF larvae were reared under six different conditions: low, medium, or high larval density and on low, medium, and high‐water feeds to investigate feed choice behaviour. Larvae reared under all six conditions preferred substrate colonised by conspecifics. Low‐water feed caused slower larval growth and development.
Yvonne Kortsmit +3 more
wiley +1 more source
We translocated the native cavity‐nesting bee Exoneura robusta into an urban greenspace using artificial nests to test short‐term establishment success. Five of eleven nests persisted through a full annual cycle, demonstrating that urban environments can support early colony establishment.
Mulan Wang, Julian Brown
wiley +1 more source
Abstract Invasive wildflowers pose a conservation paradox: While they often reduce the diversity and abundance of native wildflowers, they can provide resources for native pollinators, including imperiled species. Previous work has framed wildflower invasions as outcomes of global change, but less is known about how interacting anthropogenic drivers ...
Rebecca A. Nelson +2 more
wiley +1 more source
TO THE KNOWLEDGE OF DIGGER WASPS OF SUBFAMILY PEMPHREDONINAE (HYMENOPTERA: CRABRONIDAE) OF RUSSIA
The review of 16 species from five genera is given. Stigmus eurasiaticus sp. n. and hitherto unknown male of Ammoplanus serratus Tsuneki 1972 are described. Ammoplanus gegen Tsuneki, 1972, Diodontus changaiensis Tsuneki, 1972, D. parvulus (Radoszkowski, 1877), and Psenulus chevrieri (Tournier, 1889) are newly recorded from Russia; the distribution of ...
openaire +2 more sources
Abstract For hundreds of years, humans have drained water from landscapes, especially peatlands, to improve agriculture and forestry. Widespread, intensive ditching alters ecosystem processes and vegetation communities in ways that may last decades after ditch abandonment and that could be irreversible or require extensive intervention to reverse ...
Olivia C. Anderson +4 more
wiley +1 more source
The Role of Landscapes and Landmarks in Bee Navigation: A Review. [PDF]
The ability of animals to explore landmarks in their environment is essential to their fitness. Landmarks are widely recognized to play a key role in navigation by providing information in multiple sensory modalities. However, what is a landmark?
Kheradmand, Bahram, Nieh, James C
core +1 more source
The cost of parental care: prey hunting in a digger wasp [PDF]
Trivers's concept of parental investment is an integral part of modern evolutionary biology. "Parental investment" is defined as any parental expenditure that benefits a current progeny at the expense of a parent's ability to reproduce in the future. Because future costs are hard to quantify, other currencies were used that were thought to be related ...
openaire +1 more source
Abstract The presently most densely sampled molecular phylogeny of the widespread New World subtribe Gonolobinae is presented, including about 35% of the ca. 520 species. Sampling focused on an even representation of the three main areas of total Gonolobinae distribution, South America, Central/North America, and the West Indian Islands, and the ...
Sigrid Liede‐Schumann +4 more
wiley +1 more source

