close-ups of bark from spruce trees being collected by scientists which shows damaged caused by eight-toothed european spruce bark beetles - 樹皮甲蟲 個影片檔及 b 捲影像00:19
spruce trees killed by spruce bark beetles above loch achaidh na h-inich near plockton, highlands, scotland, uk. - 樹皮甲蟲 個影片檔及 b 捲影像00:09
spruce trees killed by spruce bark beetles above loch achaidh na h-inich near plockton, highlands, scotland, uk. - 樹皮甲蟲 個影片檔及 b 捲影像00:10
spruce trees killed by spruce bark beetles above loch achaidh na h-inich near plockton, highlands, scotland, uk. - 樹皮甲蟲 個影片檔及 b 捲影像00:09
european spruce bark beetles lie in a container for counting after they were trapped by employees of the saxony state forests, sachsenforst, during... - 樹皮甲蟲 個影片檔及 b 捲影像00:19德國, 昆蟲
european spruce bark beetles lie in a container for counting after they were trapped by employees of the saxony state forests, sachsenforst, during... - 樹皮甲蟲 個影片檔及 b 捲影像00:08
trainee of the saxony state forests, sachsenforst, dumps european spruce bark beetles into a container for counting during bark beetle monitoring in... - 樹皮甲蟲 個影片檔及 b 捲影像00:20
trainees of the saxony state forests, sachsenforst, depart after emptying traps during monitoring of the european spruce bark beetle in a forest on... - 樹皮甲蟲 個影片檔及 b 捲影像00:09
trainee of the saxony state forests, sachsenforst, empties a trap for catching european spruce bark beetles as forest ranger thomas vogel looks on... - 樹皮甲蟲 個影片檔及 b 捲影像00:10
the coniferous forest biome - part 19 of 27. the coniferous forest is a biome in which there are relatively few niches and therefore relatively few species of plants and animals. this film identifies the large coniferous forest areas of the world, and exa - 樹皮甲蟲 個影片檔及 b 捲影像00:31
drone flies over reforestation area in forest with climate resistant trees, deforestation due to bark beetle infestation, aerial view. - 樹皮甲蟲 個影片檔及 b 捲影像00:12
drone flies over reforestation area in forest with climate resistant trees, deforestation due to bark beetle infestation, aerial view. - 樹皮甲蟲 個影片檔及 b 捲影像00:25
drone flies over reforestation area in forest with climate resistant trees, deforestation due to bark beetle infestation, aerial view. - 樹皮甲蟲 個影片檔及 b 捲影像00:20
drone flies over reforestation area in forest with climate resistant trees, deforestation due to bark beetle infestation, aerial view. - 樹皮甲蟲 個影片檔及 b 捲影像00:10
drone flies over reforestation area in forest with climate resistant trees, deforestation due to bark beetle infestation, aerial view. - 樹皮甲蟲 個影片檔及 b 捲影像00:20
drone flies over reforestation area in forest with climate resistant trees, deforestation due to bark beetle infestation, aerial view. - 樹皮甲蟲 個影片檔及 b 捲影像00:20
drone flies over reforestation area in forest with climate resistant trees, deforestation due to bark beetle infestation, aerial view. - 樹皮甲蟲 個影片檔及 b 捲影像00:20
drone flies over reforestation area in forest with climate resistant trees, deforestation due to bark beetle infestation, aerial view. - 樹皮甲蟲 個影片檔及 b 捲影像00:12
red ants (crematogaster alluaudi) in pine tree, trying to reach the bettles. pinus canariensis and common pine shoot beetle - 樹皮甲蟲 個影片檔及 b 捲影像00:29
red ants (crematogaster alluaudi) in pine tree, trying to reach the bettles. pinus canariensis and common pine shoot beetle - 樹皮甲蟲 個影片檔及 b 捲影像00:30
red ants (crematogaster alluaudi) in pine tree, trying to reach the bettles. pinus canariensis and common pine shoot beetle - 樹皮甲蟲 個影片檔及 b 捲影像00:34
red ants (crematogaster alluaudi) in pine tree, trying to reach the bettles. pinus canariensis and common pine shoot beetle - 樹皮甲蟲 個影片檔及 b 捲影像00:31
red ants (crematogaster alluaudi) in pine tree, trying to reach the bettles. pinus canariensis and common pine shoot beetle - 樹皮甲蟲 個影片檔及 b 捲影像00:41
red ants (crematogaster alluaudi) in pine tree, trying to reach the bettles. pinus canariensis and common pine shoot beetle - 樹皮甲蟲 個影片檔及 b 捲影像00:32