Results 101 to 110 of about 175,543 (303)
Cropland restricts occurrence and alters spatial ecology near the mule deer geographical range limit
Background Habitat fragmentation can influence the spatial ecology of wildlife populations, with downstream effects on population dynamics and sustainability.
Levi J. Heffelfinger +7 more
doaj +1 more source
Who Benefits from the Tariff Reforms? [PDF]
Who benefits from the tariff reforms launched by the Philippine government from 1994-2000? On the basis of the results of his simulation runs, the author of this Policy Notes suggests that tariff reduction is generally pro-poor as shown by the drop in ...
Cororaton, Caesar B.
core
Status and future of seed conservation of threatened plants in the post‐2020 era
Ambitious targets have been set to backup seeds of threatened plants by the global strategy for plant conservation (GSPC), but it is unclear in how far these targets have been met and how seed collection should be organized to meet future challenges. Here, we provide an overview of the status of 44 countries in achieving seed conservation targets.
Andreas Ensslin +130 more
wiley +1 more source
R&D Gaps in the Philippines [PDF]
Based on the chain of causality, R&D translates to innovation and to productivity/ technological progress, which ultimately leads to economic growth and prosperity. There exists a strong empirical support to positive relationship between effort levels in
Cororaton, Caesar B.
core
Virtual Elastic Tether: A New Approach for Multi‐Agent Navigation in Confined Aquatic Environments
ABSTRACT Underwater navigation is a challenging area in the field of mobile robotics due to inherent constraints in self‐localization and communication in underwater environments. Some of these challenges can be mitigated by using collaborative multi‐agent teams.
Kanzhong Yao +5 more
wiley +1 more source
On reversing the northern bobwhite population decline: 20 years later
The northern bobwhite (Colinus virginianus) decline has become a cause célébre of wildlife conservation during the past 2 decades. With few exceptions, current broad‐scale population trends show ongoing erosion in bobwhite numbers across most of the ...
Fidel Hernández +4 more
doaj +1 more source
Big Bird: A global dataset of birds in drone imagery annotated to species level
Drones are a valuable tool for surveying birds, but manually detecting and identifying birds in drone images is costly. We assembled a diverse dataset of 23 865 images of birds captured with 21 different drones across 11 countries. We labelled 4824 of these images, detailing the location, species, posture category, age category, and sex of 49 990 birds
Joshua P. Wilson +19 more
wiley +1 more source
Competition is a complex ecological process involving individual and community interactions at ecological and evolutionary time scales. Individuals within and between species can compete through two mechanisms: exploitative and interference competition ...
Bryan D. Spencer +7 more
doaj +1 more source
ABSTRACT Sustainable development transforms production systems, requiring integrated environmental, social, and economic strategies. Energy systems are key agro‐industrial supply chains in developing countries. Brazil's soybean supply chain impacts Gross Domestic Product, mainly through exports.
Aline Veronese da Silva +3 more
wiley +1 more source
Evaluation of drone surveys for ungulates in southwestern rangelands
Drone platforms are increasingly used for aerial wildlife surveys, but the validity of population counts has not been fully evaluated in all environments.
Jesse Blum +6 more
doaj +1 more source

