Little is really known about the total numbers of insect species our planet holds and it is estimated that only between 10 and 20 per cent of insect and invertebrate species have been classified and named. We may well ask ourselves as to why the world’s insect population is declining with some species facing extinction?
La Selva is een strook intacte Costa Ricaanse jungle die beschermd is tegen ontwikkeling, specifiek voor gebruik door wetenschappelijke onderzoekers en docenten. La Selva wordt erkend als een van de meest productieve veldstations ter wereld voor tropisch onderzoek en publicaties. Het is een ongelooflijk waardevolle bron voor wetenschappers, en hoewel beschermd, is het niet ondoordringbaar.
La Selva is a swath of intact Costa Rican jungle protected from development specifically for use by science researchers and educators. Hints of research projects can be seen along the over 30 miles of pathways that weave through the jungle – a tree tagged with orange tape, a 3-square-foot plot of jungle marked off with string.
Hundreds of bird populations in India are collapsing, according to a major new report. Researchers using data collected by more than 15,000 birdwatchers examined trends over a 25-year period, and also over the last five years, and in both cases found numbers had declined overall. Over the last quarter of a century there is data available for 261 species – 52 per cent of which were found to be decreasing in number. And over the past five years, data available for 146 species revealed almost 80 per cent of them were declining.
Neonicotinoid insecticides, also known as neonics, are doing more than killing bees and other insects in record numbers, according to a report issued last month by the Natural Resources Defense Council, an international environmental advocacy group. Neonics, the council says, are contaminating New York State’s soil and water and “hollowing out ecosystems from the bottom up.”
The breeding bird population in Germany declined by around 14 million or eight percent over the period between 1992 and 2016, the Federal Agency for Nature Conservation (BfN) said on Wednesday. The "significant decline" in the number of native birds in meadows, pastures and fields has been continuing, according to an evaluation of thousands of data sets by the agency. "In the open agricultural landscapes, the population of breeding pairs has declined by about two million over a quarter of a century," BfN President Beate Jessel said.
Steve Gillam, Starved Rock volunteer Tom Williams and Starved Rock State Park natural resource coordinator Lisa Sons exchanged jokes and friendly chitchat as they trudged over a muddy path along a field edge, wetland and woods at Matthiessen State Park. They were not seeing many birds, despite sunny, breezy conditions and diverse habitat, during their after-lunch hike over their territory in the Starved Rock Audubon Society Christmas bird count. And they said they had not seen many birds in the morning among the oak trees and canyons in the Matthiessen Dells area.
A decline in bird populations is the first indication that something is ecologically amiss, according to an expert from a wildlife organization. "Birds are the first stimulus of degradation in an area. If there is a decrease in the bird populations somewhere, it indicates that something is wrong there," Ahmet Emre Kutukcu, a wildlife expert from World Wildlife Fund (WWF) Turkey, told Anadolu Agency (AA).