Results 81 to 90 of about 29,283 (301)

Conserving the Diversity of Ecological Interactions: The Role of Two Threatened Macaw Species as Legitimate Dispersers of “Megafaunal” Fruits

open access: yesDiversity, 2020
The extinction of ecological functions is increasingly considered a major component of biodiversity loss, given its pervasive effects on ecosystems, and it may precede the disappearance of the species engaged.
José L. Tella   +7 more
doaj   +1 more source

Torpor‐assisted migration: Regular use of shallow torpor reduces rest‐phase energy expenditure for songbirds during migration

open access: yesJournal of Animal Ecology, EarlyView.
Migrating songbirds regularly use shallow torpor (up to 98% of birds for some species) to save energy (up to 42%) during inactive periods. This Ruby‐crowned Kinglet Corthylio calendula that was captured after a spring snowstorm highlights the value of being able to save energy when encountering unfavourable conditions.
Ryan A. C. Leys   +2 more
wiley   +1 more source

Fishes of the Antoine River, Little Missouri River System, Southwestern Arkansas [PDF]

open access: yes, 1983
The fishes of the Antoine River (Little Missouri River system) in southwestern Arkansas were surveyed from September, 1980 - June, 1982. Thirty-four field collections plus literature and museum records, revealed a total of 60 species in 29 genera ...
Koym, Darryl   +2 more
core   +18 more sources

Rising temperature non‐additively alters how different dimensions of biodiversity affect ecosystem‐scale processes

open access: yesJournal of Animal Ecology, EarlyView.
The authors distil how dimensions of biodiversity drive ecosystem processes with increasing temperature. Specifically, species physiology more greatly affected ecosystem primary production than did foraging behaviour, and physiology mediated non‐additive interactions with temperature.
Sean Pierce Richards   +2 more
wiley   +1 more source

Marine recreational fisheries statistics survey for Northern and Central California, Quarterly Report No. 3, January to March 1980 [PDF]

open access: yes, 1987
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in January to March 1980, is presented in a data report format.
Karpov, Konstantin A.   +1 more
core  

Poultry Housing [PDF]

open access: yes, 1935
PDF pages ...
Cray, R. E., Twitchell, H. P.
core  

Bat Tongues and Foraging: Linking Morphology to Hunting Strategies

open access: yesIntegrative Zoology, EarlyView.
We linked the bat tongue's mediodorsal lobe (MDL), a muscular prominence, to foraging strategies. Aerial hawkers exhibit tall MDLs and prominent forward‐pointing papillae. The MDL may function as a barrier or filter, preventing unintentional ingestion of non‐food material, aiding in prey handling, and controlling food access during fast flight ...
Danilo Russo   +6 more
wiley   +1 more source

Beyond Critical Period Learning: Striatal FoxP2 Affects the Active Maintenance of Learned Vocalizations in Adulthood. [PDF]

open access: yes, 2019
In humans, mutations in the transcription factor forkhead box P2 (FOXP2) result in language disorders associated with altered striatal structure. Like speech, birdsong is learned through social interactions during maturational critical periods, and it ...
Day, Nancy F   +3 more
core  

Sex‐Specific Involvement of Gut Microbiota in Behavioral and Endocrine Responses to Chronic Predator Odor in Brandt's Voles

open access: yesIntegrative Zoology, EarlyView.
18 days of predator odor exposure altered gut microbiota, increased anxiety‐like behaviors, and elevated hypothalamic–pituitary–adrenal axis activity in Brandt's voles, with males showing behavioral habituation and females remaining sensitive. Cecal microbiota transplantation experiments confirmed that only female recipients of microbiota from predator‐
Chen Gu   +6 more
wiley   +1 more source

Unraveling Occurrence Patterns and Diversity of Avian Malaria Parasites in Iberian Obligate and Facultative Scavenger Birds

open access: yesIntegrative Zoology, EarlyView.
Low overall haemosporidian occurrence (3.4%; 13/383). Unexpected high lineage diversity (10 new host–parasite interactions). Novel Leucocytozoon lineage (GYPBAR01) in all European vultures except the griffon vulture. Plasmodium relictum (lineage SGS1) in adult red kites.
Pilar Oliva‐Vidal   +5 more
wiley   +1 more source

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