Results 131 to 140 of about 12,989 (207)

Neglected Floral Visitors in the Galapagos Islands: Understanding the Structure of Ant‐Flower Interaction Networks

Journal of Applied Entomology, Volume 150, Issue 3, Page 321-332, April 2026.
ABSTRACT Ant‐flower interactions are prevalent in many ecosystems, yet their ecological significance remains poorly understood, particularly in isolated systems like the Galapagos Islands, where unique biotic assemblages create distinct interaction networks.
Alejandro Mieles, Wesley Dáttilo, Anna Traveset   +2 more
wiley   +1 more source

Ecto- and endoparasites of common reedbuck, Redunca arundinum, at 2 localities in KwaZulu-Natal Province, South Africa: community and network structure

Parasitology
Parasite community structure is governed by functional traits of hosts and parasites. Notably, parasite populations and communities respond to host social and spatial behaviour.
Kerstin Junker, Joop Boomker, Ivan G. Horak, Boris R. Krasnov   +3 more
doaj   +1 more source

Historic disturbance events overruled climatic factors as drivers of ruderal species distributions in the Scandinavian mountains

Nordic Journal of Botany, Volume 2026, Issue 4, April 2026.
The contemporary interaction of climate and disturbance drives vegetation composition and species distribution shifts, making their respective roles difficult to disentangle. This study describes the long‐term ruderal plant species distributions along the ‘Rallarvägen' in Abisko, subarctic Sweden.
Dymphna Wiegmans, Keith Larson, Jan Clavel, Lore Hostens, Jasmine Spreeuwers, Amber Pirée, Ivan Nijs, Jonas J. Lembrechts   +7 more
wiley   +1 more source

Certifying Anosov representations

Bulletin of the London Mathematical Society, Volume 58, Issue 4, April 2026.
Abstract By providing new finite criteria which certify that a finitely generated subgroup of SL(d,R)$\operatorname{SL}(d,\operatorname{\mathbb {R}})$ or SL(d,C)$\operatorname{SL}(d,\mathbb {C})$ is projective Anosov, we obtain a practical algorithm to verify the Anosov condition.
J. Maxwell Riestenberg
wiley   +1 more source

Cognitive Constraints, Contraction Consistency, and the Satisficing Criterion [PDF]

A theory of decision making is proposed that offers an axiomatic basis for the notion of "satisficing" postulated by Herbert Simon. The theory relaxes the standard assumption that the decision maker always fully perceives his preferences among the ...
Christopher J. Tyson
core  

Axiomatic Foundations for Satisficing Behavior [PDF]

A theory of decision making is proposed that supplies an axiomatic basis for the concept of "satisficing" postulated by Herbert Simon. After a detailed review of classical results that characterize several varieties of preference-maximizing choice ...
Christopher J.Tyson
core  

The network structure of city-firm relations

, 2015
How are economic activities linked to geographic locations? To answer this question, we use a data-driven approach that builds on the information about location, ownership and economic activities of the world's 3,000 largest firms and their almost one ...
Garas, Antonios, Rozenblat, Celine, Schweitzer, Frank   +2 more
core  

On nestedness in ecological networks

, 2010
A National Science Foundation Graduate Research Fellowship supported L. Joppa, the Ministerio de Ciencia e Innovación through a Ramon y Cajal Fellowship (RYC-2008-03664) supported J. Montoya, and the Santa Fe Institute and the James McDonnell Foundation supported R. Solé. P.R. Guimarães and P.R. Guimarães, Jr.
Joppa, LN, Montoya, JM, Solé, R, Sanderson, J, Pimm, SL   +4 more
openaire   +2 more sources

La diversidad beta: medio siglo de avances Beta diversity: half a century of advances

Revista Mexicana de Biodiversidad, 2012
Se presenta una revisión de las principales tendencias que el estudio de la diversidad beta ha tenido a lo largo de más de 50 años, a partir de la propuesta del concepto y hasta las revisiones del tema realizadas recientemente.
Jaime M. Calderón-Patrón, Claudia E. Moreno, Iriana Zuria   +2 more
doaj  

Canopy closure and intensifying climate extremes drive understory species loss over 25 years of forest monitoring. [PDF]

NPJ Biodivers
Francioni M, Bricca A, Andreetta A, Brunialti G, Bussotti F, Campetella G, Canullo R, Carnicelli S, Cecchini G, Cervellini M, Chianucci F, Di Piazza S, Fačkovcová Z, Frati L, Giordani P, Pollastrini M, Puletti N, Zotti M, Chelli S.   +18 more
europepmc   +1 more source