The effects of interspecific interactions on resource use and behavior in a desert ant

Oecologia ◽  
2000 ◽  
Vol 125 (3) ◽  
pp. 436-443 ◽  
Author(s):  
Nathan J. Sanders ◽  
Deborah M. Gordon
Keyword(s):  
Resource Use ◽  
Interspecific Interactions ◽  
Desert Ant ◽  
And Behavior

scholarly journals Context-dependent dynamics lead to the assembly of functionally distinct pitcher-plant microbiomes

2019 ◽  
Author(s):  
Leonora S. Bittleston ◽  
Matti Gralka ◽  
Gabriel E. Leventhal ◽  
Itzhak Mizrahi ◽  
Otto X. Cordero
Keyword(s):  
Resource Use ◽  
Bacterial Communities ◽  
Niche Construction ◽  
Interspecific Interactions ◽  
Sarracenia Purpurea ◽  
Strongly Correlated ◽  
Pitcher Plant ◽  
Respiration Rates ◽  
Active Debate ◽  
And Function

AbstractNiche construction through interspecific interactions can condition future community states on past ones. However, the extent to which such history dependency can steer communities towards functionally different states remains a subject of active debate. Using bacterial communities collected from wild pitchers of the carnivorous pitcher plant, Sarracenia purpurea, we tested the effects of history on composition and function across communities assembled in synthetic pitcher plant microcosms. We found that the diversity of assembled communities was determined by the diversity of the system at early, pre-assembly stages. Species composition was also contingent on early community states, not only because of differences in the species pool, but also because the same species had different dynamics in different community contexts. Importantly, compositional differences were proportional to differences in function, as profiles of resource use were strongly correlated with composition, despite convergence in respiration rates. Early differences in community structure can thus propagate to mature communities, conditioning their functional repertoire.

Interspecific Interactions II: Competition and Mutualism

2020 ◽  
pp. 67-84
Author(s):  
Michael J. Fogarty ◽  
Jeremy S. Collie
Keyword(s):  
Resource Use ◽  
Population Change ◽  
Interspecific Interactions ◽  
Competitive Interactions ◽  
Aquatic Environments ◽  
Biotic Interaction ◽  
Controlled Experiments ◽  
Aquatic Communities ◽  
Shared Resource ◽  
Differential Reduction

Competition and mutualism are important forms of biotic interaction in aquatic communities. Quantification of the population and community-level effects of these interactions has historically been less common in fisheries analyses than predation. In part, this reflects the difficulties in conducting controlled experiments for larger-bodied organisms in aquatic environments. Documenting competition entails not only identifying patterns of shared resource use but evidence that these resources are limiting. Inferences concerning competitive interactions in non-experimental settings may be possible if histories of population change for putative competitors are available and quantifiable interventions involving the addition of a species (through deliberate or inadvertent introductions) or a differential reduction in abundance of the species through harvesting is undertaken. Care must be taken to account for other changes in the environment in these uncontrolled quasi-experiments. Mutualistic interactions are widely recognized in aquatic ecosystems but far less commonly quantified than competition.

scholarly journals Incipient species or social polymorphism? Diversity in the desert ant Cataglyphis

2018 ◽  
Author(s):  
Tali Reiner Brodetzki ◽  
Shani Inbar ◽  
Pnina Cohen ◽  
Serge Aron ◽  
Eyal Privman ◽  
...  
Keyword(s):  
Nuclear Dna ◽  
Hot Spot ◽  
Single Species ◽  
Incipient Species ◽  
Desert Ant ◽  
Multi Method Approach ◽  
Multiple Species ◽  
High Level ◽  
Evolutionary Paths ◽  
And Behavior

Species are the fundamental units upon which evolutionary research is based. In insects, due to the high level of hybridization, the delimitation of such species can be challenging. The genus Cataglyphis presents a high level of diversification, making it an excellent model with which to study evolutionary paths. Israel appears to be a 'hot spot' for recent speciation in this genus. Although previous studies have described multiple species of Cataglyphis in Israel, a recent genetic study has questioned the existence of some of these historically described species. The present study focuses on an apparent species complex that is distinguishable by its mitochondrial DNA (and therefore named mitotypes) but not by its nuclear DNA. Using a multi-method approach (genetics, chemistry and behavior), we show that these mitotypes also differ in their social structures and are readily distinguishable by their cuticular hydrocarbons profiles. While the different mitotypes are in general allopatric, at our study site they all coexist but nonetheless maintain the observed differences between them. This raises many evolutionary questions: Are these incipient species that have diverged with gene flow, or is this a case of social and chemical polymorphism that is maintained within a single species.

Resource use and its association to cognitive impairment, ADL functions, and behavior in residents of Swedish nursing homes: Results from the U‐Age program (SWENIS study)

2018 ◽  
Vol 34 (1) ◽  
pp. 130-136 ◽  
Author(s):  
Anders Sköldunger ◽  
Anders Wimo ◽  
Karin Sjögren ◽  
Sabine Björk ◽  
Annica Backman ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Nursing Homes ◽  
Resource Use ◽  
And Behavior

Resource Use and Behavior of Migrating Snow Geese

1982 ◽  
Vol 46 (3) ◽  
pp. 601 ◽  
Author(s):  
Robert B. Frederick ◽  
Erwin E. Klaas
Keyword(s):  
Resource Use ◽  
Snow Geese ◽  
And Behavior

Floral resource use and interactions between Apis mellifera and native bees in cucurbit crops in Yucatán, México

2005 ◽  
Vol 137 (4) ◽  
pp. 441-449 ◽  
Author(s):  
Miguel Angel Pinkus-Rendon ◽  
Víctor Parra-Tabla ◽  
Virginia Meléndez-Ramírez
Keyword(s):  
Apis Mellifera ◽  
Resource Use ◽  
Interspecific Interactions ◽  
Citrullus Lanatus ◽  
Niche Overlap ◽  
Fruit Production ◽  
Floral Resources ◽  
Native Bees ◽  
Native Bee ◽  
Floral Resource

AbstractDespite the importance of native pollinators in agricultural systems, little is known about the potential competitive interactions among them or the way they exploit crops' floral resources. This study determines the temporal use of floral resources by, and interspecific interactions between, native bees and Apis mellifera L. (Hymenoptera: Apidae) in experimental plots of squash, Cucurbita moschata (Duchesne ex Lam.) Duchesne ex Poir. (Cucurbitaceae), and watermelon, Citrullus lanatus (Thunb.) (Cucurbitaceae). General and specific niche overlap analyses were done to determine whether temporally differential use of floral resources occurred. Direct displacement interactions at the floral level were quantified. The species with the greatest abundances were Peponapis limitaris Cockerell (Apidae), Partamona bilineata Say (Apidae), and A. mellifera. Overall, the niche overlap analyses in both crops suggested that floral resources are not used simultaneously by different bee species. Winner events during aggressive encounters suggested a hierarchy among bee species, with A. mellifera being one of the species with more winner encounters in both crops. It is suggested that those deciding whether or not to introduce A. mellifera into crops should consider whether the abundance of native bee species is sufficient to ensure efficient fruit production.

scholarly journals Pollinator traits and competitive context shape dynamic foraging behavior in bee communities

2017 ◽  
Author(s):  
Heather M. Briggs ◽  
Berry J. Brosi
Keyword(s):  
Interspecific Competition ◽  
Foraging Behavior ◽  
Resource Use ◽  
Behavioral Plasticity ◽  
Interspecific Interactions ◽  
Reproductive Function ◽  
Site Variation ◽  
Predictive Understanding ◽  
Tongue Length ◽  
Context Shape

AbstractInterspecific interactions (e.g. competition) can dynamically shape individual and species-level resource use within communities. Understanding how interspecific competition between pollinators species shapes resource use is of particular interest because pollinator foraging behavior (“floral fidelity”) is directly linked to plant reproductive function through the movement of conspecific pollen. Through targeted species removals, this study aims to gain a predictive understanding of how interspecific competition can influence pollinator foraging behavior. We explore how traits—specifically pollinator tongue length, known to dictate pollinator resource partitioning—influence behavioral plasticity and drive dynamic interspecific interactions. Our results demonstrate that bee species vary in their floral fidelity and that tongue length explains a large part of this variation. Bees with shorter tongues move between plant species (floral infidelity) more often than bees with longer tongues. We did not find significant variation in the response of bee species to a reduction in interspecific competition, but rather saw a guild-wide reduction in floral fidelity in response to the removal of the dominant bee species Finally, our results suggest that tongue length of the most abundant bee species, a site-level attribute, explains much of the site-to-site variation in pollinator foraging behavior. In particular, we found that as the tongue length of the most abundant bee in the site increases, the site level foraging fidelity decreases. With global pollinator populations on the decline, novel interactions between plants and pollinators are likely to occur. Exploring how the competitive landscape shapes foraging plasticity will help us generalize to other plant pollinator systems and begin to better predict the functional implications of competitive interactions.

Composition, structure, and competitive behaviour in a guild of Ecuadorian rain forest dung beetles (Coleoptera; Scarabaeidae)

1982 ◽  
Vol 60 (7) ◽  
pp. 1624-1634 ◽  
Author(s):  
Stewart B. Peck ◽  
Adrian Forsyth
Keyword(s):  
Resource Use ◽  
Rain Forest ◽  
Reproductive Activity ◽  
Population Densities ◽  
Interspecific Aggression ◽  
Competitive Behaviour ◽  
Composition Structure ◽  
Burial Rates ◽  
And Behavior ◽  
Neotropical Rain Forest

A guild of neotropical rain forest dung scarabs, collected by baited pit traps, was composed of 11 genera and 31 species of Scarabaeinae. Relative abundances were highly equitable. Population densities were high and stable through the transition from wet to dry season. Competition for dung was intense and removal and burial rates were rapid. Resource use differed between genera and species in diel flight activity, foraging and dung removal methods, and behavior. Interspecific aggression and dung stealing behaviors were well developed. Reproductive activity was inversely correlated with aggression and parental investment.

Worker demography and behavior in a supercolonial ant colony: The case of the desert ant Cataglyphis niger

Ethology ◽  
2019 ◽  
Vol 126 (1) ◽  
pp. 59-67
Author(s):  
Tali Reiner Brodetzki ◽  
Guy Brodetzki ◽  
Ofer Feinerman ◽  
Abraham Hefetz
Keyword(s):  
Ant Colony ◽  
Desert Ant ◽  
And Behavior ◽  
Cataglyphis Niger

How Homo economicus lost her mind and how we can revive her

2018 ◽  
Vol 41 ◽  
Author(s):  
Peter DeScioli
Keyword(s):  
Economic Thought ◽  
History Of Economic Thought ◽  
Homo Economicus ◽  
Economic Theories ◽  
Target Article ◽  
History Of ◽  
The Mind ◽  
And Behavior

AbstractThe target article by Boyer & Petersen (B&P) contributes a vital message: that people have folk economic theories that shape their thoughts and behavior in the marketplace. This message is all the more important because, in the history of economic thought, Homo economicus was increasingly stripped of mental capacities. Intuitive theories can help restore the mind of Homo economicus.

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