Results 51 to 60 of about 818 (183)
Secondary Dispersal of Pasania edulis Acorns by Apodemus speciosus into a Coniferous Plantation.
スギ人工林へのマテバシイの侵入に係わる野ネズミの働きを解明するため,2003年4月から2005年1月まで,鹿児島大学演習林内の常緑広葉樹林とそれに隣接するスギ人工林において,堅果の落下状況,野ネズミによる堅果の散布状況,マテバシイ稚樹の生育状況を調査した。自然落下による分散距離は平均2.4m,人工林への侵入距離は最大4.4mであった。2003年と2004年の秋に200個ずつ設置した磁石付き堅果のうち,それぞれ66個,58個を野ネズミは人工林内に運搬し,林分の境界から貯食場所までの距離は,2003年は最大34.5m,2004年は18.5mであった。2003年の貯蔵堅果のうち6個は翌春まで人工林内に残存した。人工林内のマテバシイ稚樹の生育密度は林分の境界から距離とともに減少したが ...
Hirata, R. +5 more
openaire +2 more sources
Acorn dispersal and its consequences for forest stand regeneration and expansion.
La dispersion des graines génère le patron initial de la régénération des plantes, avec des conséquences sur l'ensemble des processus démographiques subséquents.
GERZABEK, Gabriel
core
Revisiting the predation paradox for the Wood Thrush, a declining Neotropical migrant
Abstract Despite an increased density of mid‐trophic level predators in urban and suburban areas compared to rural areas, the survival of smaller prey animals, including the eggs and chicks of nesting songbirds, often remains relatively high in these areas.
Melanie L. Klein +3 more
wiley +1 more source
Seedling counts over 26 years revealed that wetter‐site temperate tree species struggle to recruit in warmer, drier years, whereas drier‐site species are more climate‐tolerant. Shadier forests buffered seedlings from heat and drought. Local soils and canopy cover strongly shaped outcomes, revealing considerable differences among species in climate ...
Bailey H. McNichol, Richard K. Kobe
wiley +1 more source
Context-dependent seed dispersal by a scatter-hoarding corvid
1. Corvids (crows, jays, magpies and nutcrackers) are important dispersers of large-seeded plants. Studies on captive or supplemented birds suggest that they flexibly adjust their scatter-hoarding behavior to the context of social dynamics and relative ...
Morrison, Scott A. +7 more
core +1 more source
The process of seed dispersal of many animal-dispersed plants is frequently mediated by a small set of biotic agents. However, the contribution that each of these dispersers makes to the overall recruitment may differ largely, with important ecological ...
Ignacio M Pérez-Ramos +4 more
doaj +1 more source
Shaping Function: Polymeric 3D Systems With Unconventional Geometries for Biomedical Applications
Particle shape is a key design parameter governing biological interactions. Advances in fabrication enable precise control over anisotropy and compartmentalization, allowing modulation of cellular uptake, transport, and biodistribution, ultimately enhancing therapeutic performance. ABSTRACT Polymer geometry is a primary determinant of physical behavior
Francisca G. Perfeito +2 more
wiley +1 more source
Spatial-scale dependencies in the predation of seeds by rodents [PDF]
Summary 1. Previous studies have shown rates of seed predation in deciduous woodland to be high (on average 60%) and extremely variable in space and time. 2.
Borelli, Teresa
core
We have found evidence of behavioural barriers for both hybridization and disease transmission between European wildcats and domestic cats. This includes hierarchical interspecies exclusion enforced by wildcats, as well as sexual selection exerted by wildcat females.
Jose María Gil‐Sánchez +4 more
wiley +1 more source
Mediterranean ecosystems face complex, multi‐trophic impacts from global‐change drivers, yet responses are often studied in isolation. Using the Doñana Protected Area as a case study, we illustrate how anthropogenic pressures on key species like cork oaks and rabbits, as well as increases in species like wild boar and invasive crayfish, lead to ...
Maria Paniw +23 more
wiley +1 more source

