Results 31 to 40 of about 3,846,370 (282)

2004 United States Animal Health Report [PDF]

open access: yes, 2021
Excerpt from the report Foreword: This report—a national overview of domestic animal health in the United States for 2004—is a direct result of an external review of the Nation’s animal health safeguarding system.
Animal and Plant Health Inspection Service
core   +1 more source

Spitting Seeds From the Cud: A Review of an Endozoochory Exclusive to Ruminants

open access: yesFrontiers in Ecology and Evolution, 2019
Given their strong masticatory system and the powerful microbial digestion inside their complex guts, mammalian ruminants have been frequently considered seed predators rather than seed dispersers.
Miguel Delibes   +6 more
doaj   +1 more source

Frugivory and Seed Dispersal by Lizards: A Global Review

open access: yesFrontiers in Ecology and Evolution, 2019
Birds and mammals are the only vertebrates which receive comprehensive attention in studies of dispersal of fleshy-fruited plant species. However, recently the importance of fleshy fruit in the diet of lizards (order Squamata: suborder Sauria), and their
Alfredo Valido, Jens M. Olesen
doaj   +1 more source

Constructing more informative plant-pollinator networks : visitation and pollen deposition networks in a heathland plant community [PDF]

open access: yes, 2015
Interaction networks are widely used as tools to understand plant–pollinator communities, and to examine potential threats to plant diversity and food security if the ecosystem service provided by pollinating animals declines.
Baldock, Katherine C. R.   +11 more
core   +1 more source

Phylogenetic and Functional Diversity of Fleshy-Fruited Plants Are Positively Associated with Seedling Diversity in a Tropical Montane Forest

open access: yesFrontiers in Ecology and Evolution, 2017
Mutualistic interactions between plants and animals can affect both plant and animal communities, and potentially leave imprints on plant demography. Yet, no study has simultaneously tested how trait variation in plant resources shapes the diversity of ...
Marcia C. Muñoz   +6 more
doaj   +1 more source

Ant-plant interaction in a tropical savanna: may the network structure vary over time and influence on the outcomes of associations? [PDF]

open access: yesPLoS ONE, 2014
Plant-animal interactions occur in a community context of dynamic and complex ecological interactive networks. The understanding of who interacts with whom is a basic information, but the outcomes of interactions among associates are fundamental to draw ...
Denise Lange, Kleber Del-Claro
doaj   +1 more source

Complementary Effects of Species Abundances and Ecological Neighborhood on the Occurrence of Fruit-Frugivore Interactions

open access: yesFrontiers in Ecology and Evolution, 2017
Species interactions are traditionally seen as the outcome of both ecological and evolutionary mechanisms. Among them, the two most frequently studied are the neutral role of species abundances in determining encounter probability and the deterministic ...
Isabel Donoso   +8 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

An experimental and modelling exploration of the host-sanction hypothesis in legume-rhizobia mutualism [PDF]

open access: yes, 2008
Despite the importance of mutualism as a key ecological process, its persistence in nature is difficult to explain since the existence of exploitative, 'cheating' partners that could erode the interaction is common. By analogy with the proposed
Jose Ruiz-Sainz   +7 more
core  

An ant-plant mutualism induces shifts in the protist community structure of a tank-bromeliad [PDF]

open access: yes, 2012
Although ants may induce community-wide effects via changes in physical habitats in terrestrial environments, their influence on aquatic communities living in plant-held waters remains largely underexplored.
Pelozuelo, Laurent   +7 more
core   +1 more source

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